tag:blogger.com,1999:blog-70439091730892766042024-03-13T12:06:52.714-07:00epson projectorprojectorhttp://www.blogger.com/profile/09997708306546507621noreply@blogger.comBlogger67125tag:blogger.com,1999:blog-7043909173089276604.post-13011209558524744132009-01-16T06:58:00.000-08:002009-01-16T08:20:42.150-08:00Shall We Consider A Cheap Projector? <p>Shall We Consider A Cheap Projector?<br>By Clifford Tan</p><p>What exactly defines a cheap projector? Different people will have varying opinions in regard to this matter. For some people it implies a lack of quality where for some others, it will mean an opportunity to have high quality at a substantially reduced price. Finding a cheap projector does not require any forfeiture of quality. If it does, then the buyer should beware and shop around more. Cheap projectors are readily available featuring all of the benefits to establish a nice home theater system.</p><p>The DIY or Do It Yourself projector is a popular alternative for many people who could not otherwise afford a home projection system. While it does have some drawbacks for those who are not so mechanically inclined, it also has many benefits. If an individual has a rudimentary knowledge of electronics, this can be a good choice. There are many available plans for this type of project. Parts can be a little more difficult to find, but it can be done with a little research and some phone calls. While it is not a fix-all solution, it is a viable alternative if you are looking for a cheap projector.</p><p>Online auctions are another way of getting around the high cost of some quality projectors. When looking at auctions, it is best to note details in the description. Avoid any type of auction where any damage may be expressed or implied. There is no need in trying to find a cheap projector that will have to be repaired. More often than not, these projects end up in a closet or garage somewhere and never get finished, usually due to the high cost of fixing them.</p><p>It is a wise decision to look for auctions from people who have upgraded their theater systems or otherwise have a reasonable explanation for being rid of the projector. Most online auction sites have contact information available, so if there are unanswered questions, it is best to ask them BEFORE you bid. If the seller will not answer questions or answers them incompletely or indirectly, do not worry. It is probably not a good idea to bid on it either. The seller may often avoid specifics when there is damage that affects the performance of the projector. It is substantially better to lose a bid on a good projector than it is to win a bid on a damaged item. There will always be more auctions and more cheap projectors available.</p><p>One category that is often overlooked is a cheap alternative in home projector systems. These are commonly referred to as pre-made projectors. These are usually factory assembled DIY projectors. Often, a company that buys and sells projectors and parts will have better deals than the average person can get by buying their parts in bulk. Some of these companies have people that put together cheap projectors and sell them, generally on the internet, but sometimes on online auctions and by other means as well. If a person is not mechanically inclined, but still wants the benefit of a cheap projector, this is a very good alternative.</p><p>Note: This article may be republish for use in websites as long as the author bio and active hyperlinks are kept intact.</p><p>Clifford Tan, a Home Theater enthusiast and owner of the website Home Projector Advisor offering projector reviews, advice and many useful tips and hints to business and home consumers looking to purchase a home projectors. To find out alot more information about home projection system, visit the site http://www.home-projector-advisor.com.</p><p>Article Source: http://EzineArticles.com/?expert=CliffordTan<br>http://EzineArticles.com/?Shall-We-Consider-A-Cheap-Projector?&id=228701</p> projectorhttp://www.blogger.com/profile/09997708306546507621noreply@blogger.com0tag:blogger.com,1999:blog-7043909173089276604.post-13673574951439203122009-01-11T05:14:00.001-08:002009-01-11T05:14:05.435-08:00Should We Buy A Demo Projector Over A New Projector <p>Should We Buy A Demo Projector Over A New Projector<br>By Clifford Tan</p><p>After many years experimenting with and learning about home theaters, it is hard not to interject some personal experience into the subject matter sometimes. When I was a teenager, I was piecing together my first home theater projector. I had a state of the art front projector that took up fully two thirds of my bedroom. Intellivision was a modern marvel with 64bit video game technology. Only one thing was lacking, I was buying a new stereo to complete the home theater experience.</p><p>There was no way I could have afforded a brand new stereo, but I did, with some patience and searching, I found some demonstration models that were within my meager budget. I completed my first home theater system when I was about 16. Is the demo model still a viable option though? And will it work for home theater projectors in the same fashion?</p><p>A fair discount is often given to the purchaser of a demo model. This is done mostly due to the fact that the demo model has indeed been used to a certain extent. While this may not be an issue for some audio and visual equipment, it is necessary to look at the whole picture before deciding if this is the right way to purchase a home projector.</p><p>Obviously you must decide if the projector will fit your personal needs. What kind of media display does it offer? Will it be suitable for mounting in your home? Will the cables be included? Is there still any warranty left on the projection unit? Is the projection screen included with the projector? This last part can be especially important since you can be assured that the screen and the projector are fully compatible if the unit has been displayed in the store.</p><p>Once all these questions have been answered, even if they are all answered favorably, it is necessary to look at what may be considered the most important two factors to consider when looking at demo models.</p><p>The first question to ask is what is the discounted price? While this is usually around ten percent, frequently an otherwise demanding store may be open to negotiations. The second very important question is to get an idea of how much the projector has been run. By knowing this simple fact, you can ascertain roughly how much bulb life will still be in the headlamp.</p><p>While it may seem silly to haggle over a light bulb, projector lamps can be a very expensive replacement part, usually costing between a couple of hundred and five hundred dollars each. Is any discount in the price of the home theater projector going to be outweighed by the purchase of a new bulb in the next few months?</p><p>With some careful searching and a little patience, a demo model is an excellent and affordable opportunity for the home theater enthusiast, just be careful and remember not only what to look, but what the relevant questions are when you are shopping this way.</p><p>Note: This article may be republish for use in websites as long as the author bio and active hyperlinks are kept intact.</p><p>Clifford Tan, a Home Theater enthusiast and owner of the website Home Projector Advisor offering projector reviews, advice and many useful tips and hints to business and home consumers looking to purchase a home projectors. To find out alot more information about home projection system, visit the site http://www.home-projector-advisor.com.</p><p>Article Source: http://EzineArticles.com/?expert=CliffordTan<br>http://EzineArticles.com/?Should-We-Buy-A-Demo-Projector-Over-A-New-Projector&id=228703</p> projectorhttp://www.blogger.com/profile/09997708306546507621noreply@blogger.com0tag:blogger.com,1999:blog-7043909173089276604.post-57700516283227328792008-12-09T06:32:00.001-08:002008-12-09T06:32:33.689-08:00Home Theater Video Projectors <p>Home Theater Video Projectors<br>By Jason Gluckman</p><p>A home theater enables us to view films in the comfortable ambience of our homes. The unique ambience of movie halls can be recreated completely, minus the crowds, and favorite movies can be watched with friends and relatives in comfort. Home theater video projectors are the main component around which the home theater system runs.</p><p>At present, there are three kinds of video projector technology in use. They are CRT, LCD, and DLP. Apart from these, there are certain modifications also available based on the technology used for the above three.</p><p>During the early years of video projectors, television expertise was centered on Cathode Ray Tube technology, or CRT. Cathode ray tubes are used for the generation of a television image. Three small CRTs with a single unit meant for every principal color, and a light-magnifying lens, helps in the projection of a color representation against a big screen in a dimly lit room. A CRT projector is capable of creating superior high-resolution images. This can be achieved with the help of the right combination of video processing circuitry, CRT size, and lens combination.</p><p>The second sort of video projector is the LCD projector, or Liquid Crystal Display. This is different from a CRT projector in the sense that it is not based on the conventional projection tube. An LCD projector primarily operates by delivering a strong light source through a transparent LCD chip comprising of individual pixels, which exhibits the moving video image. This image is subsequently projected through a lens to a big screen.</p><p>The rapid developing sort of video projector with respect to sales is the DLP, or Digital Light Processing projector. This type of projector is very similar to the LCD as in this also the real image is exhibited on a chip.</p><p>Home Theater Projectors provides detailed information on Home Theater Video Projectors, Home Theater LCD Projectors, Home Theater Projector Packages, Home Theater Front Projectors and more. Home Theater Projectors is affiliated with Curtains For Home Theater Screens.</p><p>Article Source: http://EzineArticles.com/?expert=JasonGluckman<br>http://EzineArticles.com/?Home-Theater-Video-Projectors&id=246865</p> projectorhttp://www.blogger.com/profile/09997708306546507621noreply@blogger.com0tag:blogger.com,1999:blog-7043909173089276604.post-49426358315986805752008-11-24T07:19:00.001-08:002008-11-24T07:19:13.176-08:00Digital LCD Projectors <p>Digital LCD Projectors<br>By Ken Marlborough</p><p>Digital projectors are the modern replacements for the rather traditional transparency projectors. Transparency projectors worked by shining light through a semi-transparent material. Digital projectors, by contrast, project a digital image directly from a computer through a lens on to a screen.</p><p>LCD (Liquid Crystal Display) digital projectors are much lighter and more portable than their CRT (Cathode Ray Tube) versions, making them widely popular. With the advent of new LCD technologies, digital projectors have been developed which have very clear and crisp fidelity even at large projection sizes. The LCDs used in digital projectors are approximately the size of a small color slide, and in fact the projectors operate very much like a traditional slide projector. The main difference is that the slide is constantly changing.</p><p>A Digital LCD projector has its light source contained within its base. It projects light upwards through the transparent image (which sits on a glass stage) to a lens on the top (head) of the unit and out onto the projection screen. In other words, the light shines through the image to project it. These projectors work well with printed film transparencies or an LCD panel computer display and provide bright, sharp images.</p><p>Slightly higher end Digital LCD Projectors can be used for Cinema/exhibition, Post-production, On-screen advertising, Digital film mastering, Multi-media theatrical productions or other large entertainment venues. Most of the recent Digital LCD projectors can be installed with existing film projectors and also provide an interface for theatre automation equipment.</p><p>The future of digital projectors is exciting, with new technologies constantly being developed. As more and more theatres switch to digital projection, consumers cannot help but reap the benefits. As these technologies become more affordable they will inevitably find their way into home systems and allow each of us to experience the joy of a full theatre projection in our own home.</p><p>LCD Projectors provides detailed information on LCD Projectors, LCD Projector Rentals, LCD Projector Lamps, LCD Video Projectors and more. LCD Projectors is affiliated with Cheap LCD TVs.</p><p>Article Source: http://EzineArticles.com/?expert=KenMarlborough<br>http://EzineArticles.com/?Digital-LCD-Projectors&id=405805</p> projectorhttp://www.blogger.com/profile/09997708306546507621noreply@blogger.com0tag:blogger.com,1999:blog-7043909173089276604.post-88383624087023729902008-11-23T08:01:00.001-08:002008-11-23T08:01:42.356-08:00Consumer Electronic Information: The Basics of the DLP Projector <p>Consumer Electronic Information: The Basics of the DLP Projector<br>By Simon Canfield</p><p>Projectors have come a long way in the past few decades. The desktop fossils that were once used to show home moviesor classroom filmstrips are a thing of the past. With todays technology, you can now experience a projected movie that emulates a full-blown theater flick, without thetime, effort and hassle of standing in line at the local cinema.</p><p>DLP projectors also known as Digital Light Processing projectors have brought the proverbial silver screen to the home front. The fact that some theaters actually use this type of technology for feature movie projection makes this truer than you might imagine. After being digitally converted and placed on an optical disk much in the same way as DVD technology is produced the images are fed intothe projector and sent to the movie screen. The main difference is that DLP projectors offer a high definition experience, as opposed to that of a DVD. The result is a picture that very nearly rivals the quality of a 70mm projection, but without the imperfections.</p><p>The color accuracy of the DLP system is outstanding, with an end result that beats LCD technology. Some of the advantages that make a DLP the projector of choice are its low power consumption, compactness, micro-mirror construction (which is responsible for the high level screen resolution), high contrast and brightness. All in all, this is the closest that anyone can come to having a bona fide cinema within the confines of their home.</p><p>With every set of pros, youll always find some cons lurking in the shadows. Such is the case with the DLP projector. For those who are particularly sensitive to certain visual effects, the DLP design produces a type of rainbow effect, which could serve as a distraction when looking from one side of the screen to the other during viewing. This will play out as a brief splash of colors, which is simply a result of the type of technology thats used in the production of the DLP. Most people dont even notice this color display, but those who are in tune to that sort of thing may see it as an annoyance.</p><p>While this is also true for LCD projectors, consumers mightbe disappointed to know that DLP projectors need to have their light source changed after every 1,000 to 2,000 viewing hours. All in all, though, this is nothing new and, when you consider the higher quality that this type ofsystem offers, it shouldnt be seen as much of an inconvenience at all.</p><p>Perhaps the most inhibitive aspect to the acquisition of a home theater system, such as the DLP, is that the cost willtypically fall within the range of $5,000 to $10,000 for the mid-range systems, once you purchase everything that youll need in order to complete the set-up. In addition to that, youll have to consider the cost of the rest of your home theater system, since these figures only factor in the DLP expenses.</p><p>For those who can afford to do so, the DLP projector is an excellent investment, despite its few downfalls. While no projection system is perfect, DLP is currently the most popular set-up on the market and provides a powerful theater experience for those who arent inhibited by space or finances.</p><p>(c) 2005 Simon Canfield - All Rights Reserved</p><p>Simon Canfield is a hi-tech enthusiast and freelance author.</p><p>AllAboutHeadPhones.comBigScreenTVsecrets.com</p><p>Article Source: http://EzineArticles.com/?expert=SimonCanfield<br>http://EzineArticles.com/?Consumer-Electronic-Information:--The-Basics-of-the-DLP-Projector&id=31056</p> projectorhttp://www.blogger.com/profile/09997708306546507621noreply@blogger.com0tag:blogger.com,1999:blog-7043909173089276604.post-70335510626623137942008-11-22T20:12:00.001-08:002008-11-22T20:12:41.669-08:00Computer Projector Rentals: A Guide <p>Computer Projector Rentals: A Guide<br>By Marcus Peterson</p><p>Any meeting or conference requires a computer to handle inputs like data, graphics, video and audio. Computer as a multimedia application has properties comparable to standalone players for VCD or DVD. With the integration of IT and the Internet into the audio visual industry, computers have become an indispensable item of equipment. They are a common product line in the inventory of a/v rental companies.</p><p>To have a meeting with computer aided presentation of data, graphics and video, one needs to have a projector that is compatible with different makes of computers such as IBM and Mac. For instance, an iMAC computer has different requirements than other systems. The accessories that come with computer projectors are audio and video cables, speakers and screen.</p><p>The type of screen is decided by the number of members in the audience. If it is a small gathering, a 27 monitor may be used. For large gatherings, a flat screen display or a plasma monitor with 50 monitor may be used. If it is a notebook computer, the laptop must be activated to have the output to the projector. Depending on the number of the people, importance of brightness, contrast and resolution, an LCD projector would be a good fit for the occasion.</p><p>The important factors an event manager must consider before choosing the a/v system are the room size, lighting conditions, the inputs that will be displayed, the resolution and clarity of the visual images and screen size. Depending upon the requirements, the rental rate may vary from $300 to $500. Also, the rental companies provide value added services such as complete solutions to manage the event.</p><p>Computer projectors are used by corporate houses and universities for business presentations and seminars. They can be booked by phone or online. Most rental companies deliver the systems the previous day. The major manufacturers of computer projector systems are Hitachi, 3M, Compaq and Canon.</p><p>Projector Rentals provides detailed information on Computer Projector Rentals: A Guide, DVD Projector Rentals, Film Projector Rentals, LCD Projector Rentals and more. Projector Rentals is affiliated with DLP Projectors.</p><p>Article Source: http://EzineArticles.com/?expert=MarcusPeterson<br>http://EzineArticles.com/?Computer-Projector-Rentals:-A-Guide&id=220327</p> projectorhttp://www.blogger.com/profile/09997708306546507621noreply@blogger.com0tag:blogger.com,1999:blog-7043909173089276604.post-44951762385648238622008-10-30T06:00:00.001-07:002008-10-30T06:00:57.477-07:00LCD Projectors for Sale <p>LCD Projectors for Sale<br>By Ken Marlborough</p><p>Do you want to continue to be at the cutting edge of technology with high-end presentation products? Do you want to keep your audience glued to you and the vibrant graphics and clear characters of your presentation? Whether you are presenting to 10 or 10,000 people, there is bound to be an LCD projector that is perfect for you. Here is a simple guide on what to look for when you want to purchase one.</p><p>Resolution</p><p>The first consideration to look for when shopping for an LCD projector is resolution. Resolution is the number of light dots (called pixels) per square inch of the image produced. The higher the number of the pixels, the clearer and tighter your image will be. Also, if your LCD projector of choice is high in resolution, the image you can broadcast can be expanded to greater degrees. If your lecture or presentation is heavy on graphics and high quality color, or if you need to present to a large crowd, then you will need an LCD projector with high resolution.</p><p>Brightness</p><p>Since the image your LCD projector will broadcast is projected with a high-powered light bulb, you will also want to consider how bright a projection you will need. Again, the brighter the image you project, the farther away it can be seen. This is an important consideration for people thinking of presenting to large and small groups.</p><p>Price and other considerations</p><p>These projectors do not come cheap, so price is a major consideration. If your company is small, a desktop projector with resolution the size of your typical computer monitor should suffice. Also, be sure to check on compatibility issues. Is the projector you want compatible with your hardware? If it is not, you may wind up with a very expensive lamp. Finally, ask about user support. Does it come with a warranty? If it does, how long is the coverage? Is there a technical support hotline you can call if you have trouble with your projector? All these things will factor into getting an LCD projector that suits your needs.</p><p>LCD Projectors provides detailed information on LCD Projectors, LCD Projector Rentals, LCD Projector Lamps, LCD Video Projectors and more. LCD Projectors is affiliated with Cheap LCD TVs.</p><p>Article Source: http://EzineArticles.com/?expert=KenMarlborough<br>http://EzineArticles.com/?LCD-Projectors-for-Sale&id=405806</p> projectorhttp://www.blogger.com/profile/09997708306546507621noreply@blogger.com0tag:blogger.com,1999:blog-7043909173089276604.post-8328043628766320662008-10-17T20:53:00.000-07:002008-10-17T20:56:30.352-07:00Tips on Comparing Prices on Projectors <p>Tips on Comparing Prices on Projectors<br>By Jim Gelder</p><p>Buying a projector is an investment that you want to be sure you make wisely. So taking the time to do some comparison shopping when it comes to prices is simply a smart thing to do and something you certainly wont regret.</p><p>There are several ways you can go about comparing prices on projectors. The first is to visit electronics stores and office supply stores that sell projectors and check out their prices in the stores. This is an especially good method during sales. Its also a great way to get a good deal locally because many stores will offer to beat their competitors best price by a certain percentage, which can save you even more money.</p><p>You can also research and compare prices on projectors online. Doing your projector price comparison shopping online makes it possible for you to check out a much larger number of prices on projectors than you can do by going from store to store. This will also make it possible for you to check out the prices on a wider number of brand name projectors and even look into the prices of used projectors. Online auction sites such as eBay are great places to compare prices on used projectors.</p><p>Consumer report magazines are also a good resource for comparing prices on various projectors. These reports have the advantage of also rating the projectors, so you can compare quality as well as prices on projectors.</p><p>This is an important part of comparing prices on anything, whether its projectors or cars. You want to get the most value for your money, and that means that many times a medium priced item is actually a better value than a higher priced one because it has more features than a stripped down top brand name one has.</p><p>Also, even before you start comparing prices on projectors, its a good idea to have a budget in mind for what youre willing to spend for your projector. This will help you focus your price comparison, although you dont want to rule out looking into projectors that may cost more than youve budgeted for because you may run into an unexpected bargain as you do your research.</p><p>And if the thought of doing all the research needed to compare prices on projectors sounds like work to you, remember that at least half the fun of making any purchase is in the search! Make a game of it and see just how great a projector you can find for the least amount of money, thanks to your savvy comparison shopping. Then take those savings and splurge on something just for you!</p><p>Jim Gelder is a contributing writer for projectorian.com a website dedicated to offering information about projectors and projector rentals and also features a listing of local companies that offer LCD projector rentals, New York projector rentals and more.</p><p>Article Source: http://EzineArticles.com/?expert=JimGelder<br>http://EzineArticles.com/?Tips-on-Comparing-Prices-on-Projectors&id=141959</p> projectorhttp://www.blogger.com/profile/09997708306546507621noreply@blogger.com0tag:blogger.com,1999:blog-7043909173089276604.post-83260282858044244952008-10-15T06:52:00.001-07:002008-10-15T06:52:51.416-07:00Understanding Native Resolution For Your Home Theater Projector <p>Understanding Native Resolution For Your Home Theater Projector<br>By Semore Bernstein</p><p>What is Native Resolution for your Home Theater Projector?</p><p>To understand what is native resolution, lets start with an understanding of the concept of 'resolution'. Resolution is concerned with the mapping of the information within a picture or image by the dot area. <br><br>The smaller the dots, and the more densely packed it is, the greater the resolution, since the mapping of dots as measured in pixels constitutes the data for reproducing the images in video outputs of home theater and other viewing systems. This data processing capability of the projector, as measured in pixels, is what constitutes native resolution. <br><br>For high definition home theater projector pictures with good resolution, both the native resolution of the projector should match the resolution of the video signal or video input, failing which, distortion of the images is likely. Native resolution of home theater projectors is measured in two dimension figures with current capabilities ranging from (640480, 800600, 1024768, 16001200) for 4:3 image aspect ratios and the occasional odd resolutions like 12801024. <br><br>Thus, if projectors of 1280X 1024 native resolution were to map a video signal of resolution 1024 X 768, there would errors and likely distortion in the image. To effectively combat or otherwise provide for different standards, most home theater video projectors come with capabilities of multiple resolution standards, though it is most likely to be multiples of the lower resolution values.</p><p>Advice on Home Theater Projectors<br>Advice on Home Theater Projector Displays<br>Advice on Home Theater Projector Mounts</p><p>Article Source: http://EzineArticles.com/?expert=SemoreBernstein<br>http://EzineArticles.com/?Understanding-Native-Resolution-For-Your-Home-Theater-Projector&id=308155</p> projectorhttp://www.blogger.com/profile/09997708306546507621noreply@blogger.com0tag:blogger.com,1999:blog-7043909173089276604.post-81065884229648974582008-10-13T16:57:00.000-07:002008-10-13T16:58:02.956-07:00Compare LCD Projectors <p>Compare LCD Projectors<br>By Ken Marlborough</p><p>LCD (Liquid Crystal Display) projectors are devices used for displaying presentations or videos in an enlarged size. They are the modern replacements for slide projectors and overhead projects which were popular earlier.</p><p>LCD projectors are available in several variants with differing specifications. Choosing the right projector is as simple as knowing what it will be used for. The two parameters needed to compare an LCD projector are - cost and specifications. Knowing what is needed and how much you will need to use the various features / specifications of an LCD projector are going to be will help one compare the projectors with a better perspective. For this reason, it is important to know the basics of projectors before comparing them.</p><p>Aspect Ratio: It refers to the width vs. the height of the projected image. UXGA, VGA, XGA, and SVGA resolution all have a 4:3 aspect ratio.</p><p>Brightness: A projector's brightness is measured in lumens. The more light in the room where the projector will be used, the more bright the projector should be.</p><p>Contrast Ratio: Is the ratio between the darkest and brightest areas of the projected image. Medium Contrast ratio projectors can be found with a ratio of 500:1 to 1200:1.</p><p>Data Signal Ports: These ports on the projector should be compatible with whatever image source they will be paired with.</p><p>Keystone Correction: This is the ability to correct the image distortion that is created when a projector is placed at anything other than a 90 degree angle to the screen.</p><p>Native resolution: This resolution for a digital projector is the actual number of physical pixels on the projector's image chip.</p><p>Projection screens: These screens come in various fabrics and sizes. While it's possible to project the images on a blank wall, the best image quality will be achieved by projecting the images on a good screen.</p><p>Video Format Capability: A digital projector's video format capability determines which video format data it can accept. Most projectors will offer all three: PAL, NTSC, and SECAM.</p><p>A wide range of desired projectors can be found by giving exact specifications on various website over the internet. Once these basic features of projectors are compared and the best suited LCD projector identified, one can go ahead and compare the prices of the required projector.</p><p>LCD Projectors provides detailed information on LCD Projectors, LCD Projector Rentals, LCD Projector Lamps, LCD Video Projectors and more. LCD Projectors is affiliated with Cheap LCD TVs.</p><p>Article Source: http://EzineArticles.com/?expert=KenMarlborough<br>http://EzineArticles.com/?Compare-LCD-Projectors&id=405807</p> projectorhttp://www.blogger.com/profile/09997708306546507621noreply@blogger.com0tag:blogger.com,1999:blog-7043909173089276604.post-15002809009166225482008-10-10T06:04:00.001-07:002008-10-10T06:04:18.351-07:00How to Fix a Broken Slide Projector <p>How to Fix a Broken Slide Projector<br>By Jeffrey Saunders</p><p>A slide projector is a great way to store, share and show photos, presentations and other information. But what do you do when your slide projector is having problems. How to fix it can be a simple matter of jiggling a few wires, cords or cables, or taking the entire projector apart and taking a peek as to whats inside.</p><p>The most common problem with a slide projector that needs fixing is a simple projector jam. A projector jam is when one of the slides is stuck in a position that wont allow the carousel to rotate. Now, this may seem like a minor inconvenience, but it should also be the first area you look into when your projector is having problems. How to fix it, and remove the jammed slide can be done in a matter of steps.</p><p>1. Shut the slide projector off and let it cool down for a few minutes.</p><p>2. Remove the slide tray by loosening a latch or placing a coin in the middle of the tray & turning it</p><p>3. Turn the tray upside down</p><p>4. Locate the jammed slide and carefully remove it</p><p>5. Place the tray back into the projector</p><p>6. If the slide isnt damaged, insert it back into the carousel</p><p>The next time you notice your slide projector is having problems, how to fix it is to follow the steps listed above. Normally, when a slide projector wont fully rotate, its because of a jammed or lodged slide within the carousel. Carefully removing the trapped slide should solve any projector problems youre experiencing.</p><p>If youve followed the steps noted above, and you find that still your slide projector is having problems, an experienced technician may tell you how to fix it, and guide you through various stages of repair. The larger the slide projector you have, the more chances it has to jam. So before you take your projector apart or visit a potentially expensive repairman, be absolutely certain that it isnt a jammed slide thats causing your projector problems.</p><p>If your digital image projector is having problems, how to fix it can be a matter of replacing a burnt out bulb, ensuring that all your cables are properly connected to rebooting the entire system itself, depending on the sophistication level of your projector. Always go through the instruction manual when your digital projector is acting up.</p><p>Sometimes when your projector is having problems, how to fix it can be as easy as remounting it or reinstalling it. An improperly mounted projector can sometimes not project any image at all, and may appear to be broken and in need of fixing. Check to see if your projector is mounted and affixed straight. If it isnt, take it down and remount it, being careful to make certain that its properly mounted. That should solve any issues regarding your projectors refusal to show images. If that does not work, then you may consider taking your digital projector back to its point of purchase for a qualified inspection.</p><p>Jeffrey Saunders loves do-it-yourself technology</p><p>He also likes great deals on refurbished electronics. Amazing prices on big brand names like the Apple iPod Nano</p><p>And more fantastic deals on great items like digital camcorders.</p><p>Article Source: http://EzineArticles.com/?expert=JeffreySaunders<br>http://EzineArticles.com/?How-to-Fix-a-Broken-Slide-Projector&id=523766</p> projectorhttp://www.blogger.com/profile/09997708306546507621noreply@blogger.com0tag:blogger.com,1999:blog-7043909173089276604.post-84663773198059299362008-10-08T15:36:00.001-07:002008-10-08T15:36:40.578-07:00Understanding Projector Screens: Be Careful You May End Up With TOO Bright An Image! <p>Understanding Projector Screens: Be Careful, You May End Up With TOO Bright An Image!<br>By Andrew Ghigo</p><p>Today's compact yet powerful front video projectors may leave you with a too bright an image to watch! This being especially so if you intend to watch a projected image in a darkened room which after all, is most often the case with a home theater setup.</p><p>Defining Screen Gain</p><p>Prior to proceeding with our discussion, it is important that one has a full understanding of what the term screen gain is all about.</p><p>It may sound strange that we talk about gain when in reality a projector screen is nothing more than a passive device. Yet there is - it is all a question of how the screen surface distributes the reflected light.</p><p>Screen gain is a measurement of the reflectivity of the screen surface. It measures the ability of the screen to direct incident light back to the audience.</p><p>The gain number represents the ratio between incident light and reflected light. A flat matte white surface has a gain of approximately 1. A gray screen has a gain less than 1 and therefore, it attenuates incident light. Reflective screen surfaces have gains greater than 1; these projection screens direct more incident light back to the audience.</p><p>Gain is always measured in front and perpendicular to the screen at the point of maximum brightness; this represents peak screen gain and occurs at the zero viewing angle perpendicular to the screen surface.</p><p>For a screen with gain greater than one, the gain drops as one moves to the side and view the screen at an angle to the perpendicular drawn from the center of the screen. The angle at which screen gain falls to half the peak is referred to as half gain viewing angle. A person viewing the screen from this angle will see the image half as bright as the person seated at the center. The more one moves further away from the center, the dimmer the projected image will be.</p><p>The higher the peak screen gain, the narrower the supported viewing angle. This is the price one has to pay for a higher screen gain - the higher projector screen gain at the center is in fact achieved by directing more light towards the center viewing positions rather than allowing for a uniform reflected light over a wider angle of view.</p><p>Projected Image Brightness:</p><p>Matching the projection screen gain with the ambient light and the video projector output is essential if you want to ensure that you will end up with a correct level of projected image brightness.</p><p>This is an extremely important issue. Do not forget that a basic requirement for a great movie experience is a comfortable environment. This means that the time one spends watching a movie should be as comfortable as possible. Exposure to a bright projected image is uncomfortable on the eyes - even when this is for just a few minutes, least imagine when watching a two-hour movie.</p><p>A Tricky Matching Process!</p><p>Ambient Light Conditions, Image Brightness & Screen Gain</p><p>A projected image is at its best when viewed in total darkness - this helps take away any visual distractions - rendering it easier for the viewer to get deeper immersed into the movie action.</p><p>In the home, achieving a completely darkened room is almost impossible except in the case of the dedicated home theater setup. The amount of ambient light present has an impact on the resultant projected image contrast. This calls for the need to increase the image brightness to maintain the correct level of image contrast.</p><p>The tricky issue is to arrive at the correct level of image brightness for a pre-set level of ambient light. This in view that projected image brightness is a function not only of the projector output, but also of the screen gain, and image size.</p><p>The explanation that follows should help you get a better understanding of the relationship that exists between these three inter-related parameters.</p><p>Display Brightness and Screen Gain</p><p>The brightness output level of your projector is a measure of the projector output power in terms of light intensity. Please keep in mind however that the resultant projected image brightness is a different issue. Image brightness falls in proportion to the area of the projected image size - the bigger the projected image is, the dimmer it will look for a fixed level of projector brightness.</p><p>The projected image brightness - more specifically the Luminance level for a projected image, is a measure of the light reflected from the projector screen area. It is measured in foot-Lamberts, and is defined as:<br></p><p>ANSI-lumens of your projector divided by the square footage of Screen.</p><p>(Note that one foot-Lambert is equal to 1 ANSI lumen per square foot.)</p><p>To arrive at the actual level of light reflected from the screen surface, the above result must be multiplied by the projector screen gain.<br></p><p>A useful reference here is what has been defined as 'sufficient brightness' by the Society of Motion Pictures and Television Engineers, also known as SMPTE.</p><p>In standard 196M, the SMPTE determined sufficient brightness for showing motion pictures in a darkened room using a unity gain matte white projector screen, as 12 - 22 foot-Lamberts. In practice, the luminance target level is set to about 16 foot-Lamberts, while the average bright scene brightness level in a movie theater is typically 60% to 75% of this target value.</p><p>Display brightness is in itself an entirely subjective term; whats more, it is all relative to the amount of ambient light falling on the screen surface.</p><p>The following rules of thumb would surely come to assistance in this respect:</p><p><li>The contrast ratio between the projected image and the ambient light level falling on the screen should be at least 5:1. This is necessary for the eye to perceive a real impression of brightness. If this contrast ratio is not achieved, the projected image will not be considered of adequate brightness level.</p><p><li>When viewing takes place under normal ambient light conditions, the luminance level should be close to 50 foot-Lamberts. This level of luminance is derived from the fact that SMPTE indicated a target level of image brightness for a CRT TV as 50 foot-Lamberts, this in view that a TV is normally viewed under normal ambient light. One may argue that TV is a totally different technology this is true, but this target level for image brightness or luminance, still holds good for most circumstances.</p><p>How does all this translate in practical terms?</p><p>If one is viewing an image in typical very low ambient light conditions (say less than 2 foot-candles - equivalent to approximately 22 Lux), then the minimum required light level illuminating the screen surface should be around 10 foot-candles to achieve sufficient image contrast.</p><p>For a matte white projector screen surface with a screen gain of one, this translates to a minimum of 10 foot-Lamberts in terms of light reflected from the screen for image brightness. This is close to the SMPTE typical requirement for average luminance when viewing pictures in a darkened room.</p><p>Similarly, if viewing were to take place under normal ambient light room conditions (typically 10 foot-candles or 110 Lux), applying our first rule of thumb to achieve the required contrast level would result in a luminance level of 50 foot-Lamberts (approx. 540 Lux) for the same matte white projector screen surface. This is also in line with the target luminance level detailed in rule 2 for viewing under normal ambient light conditions.</p><p><ul>Note:</ul><ul><li>Light illuminating a surface is measured in lux (Lx = lumens/m2), or foot-candles.<li>Light reflected from an area (luminance) is measured in candelas/m2 (cd/m2) or foot-lamberts (fL).</ul></p><p>Now, lets consider as an example what will happen with different projector screen gains for say a given 1000 ANSI-Lumens projector and a 100 diagonal screen size.</p><p>Projector Screen Gain 1 1.5 2Image Luminance in foot-Lamberts304560</p><p>It is clear that our 1000 ANSI-Lumens projector would produce a too bright an image when the latter is viewed in a darkened room, even when using a standard matte white projector screen with unity gain. Similarly, use of this projector in conjunction with a projector screen surface having a gain of 2 may result in a too bright an image even when viewing takes place under normal ambient light conditions.</p><p>Andrew Ghigo A Telecoms/Electronics engineer by profession, with specialization in digital switching and telecoms fraud management systems.</p><p>Editor and publisher of http://www.practical-home-theater-guide.com - a site dedicated to all home theater enthusiasts with the scope of serving as a comprehensive home theater guide to home theater systems, product reviews and home theater design.</p><p>This article is an excerpt from a series of guides appearing under thehome theater screens section of the site.</p><p>Article Source: http://EzineArticles.com/?expert=AndrewGhigo<br>http://EzineArticles.com/?Understanding-Projector-Screens:-Be-Careful,-You-May-End-Up-With-TOO-Bright-An-Image!&id=40540</p> projectorhttp://www.blogger.com/profile/09997708306546507621noreply@blogger.com0tag:blogger.com,1999:blog-7043909173089276604.post-64723152280922870522008-10-06T05:49:00.001-07:002008-10-06T05:49:41.151-07:00Choosing a Digital Projector <p>Choosing a Digital Projector<br>By Luke Kent</p><p>There are tons of digital projectors available and they are constantly dropping in price. However, when choosing a projectorfor yourself or your school there are a few practical things you should remember.</p><p>When choosing a projector you need to consider under whatcircumstances will you be presenting slide shows. The strength ofa projector's brightness is measured in units called lumens. Projectors range between 650-5000 lumens. The higher the lumensthe brighter the projector. Projectors that are less than 1000 lumens may not be great in a room with a lot of ambient light.For a classroom you should consider buying a projector with greater than 1000 lumens. If the projector will be used forlarger presentations, for 100 or more people, a projector withgreater than 3000 lumens may be needed.</p><p>A great accessory to your projector is a wireless mouse. Thesehave dropped considerably in price and allow the educator toface their audience when presenting the slide show. Whenchoosing a wireless mouse choose one that has a long rangeso that you can walk around when presenting.</p><p>Many projectors also come with remotes that help the presentermake adjustments to the slide shows quickly during the presentationwithout having to fiddle with the projector.</p><p>Remember when buying a projector analyze you needs first. You maynot need to spend as much as you think or you may need to spendthe extra cash to get a projector that suits your needs.</p><p>For more product reviews and teaching tips visit our site below.</p><p>Mr. L. Kent is an experienced educator and the lead consultant of http://MrKent.Net - Education Technology Made Simple. Feel free to visit the site and/or subscribe to our fantastic monthly newsletter at http://mrkent.net/php/?p=subscribe .</p><p>Luke Kent provides assistance to other educators by offering his interesting seminar, Teaching with Technology: A Fun Workshop for Technology Challenged Teachers. To book a seminar or a consultation visit http://MrKent.Net .</p><p>Article Source: http://EzineArticles.com/?expert=LukeKent<br>http://EzineArticles.com/?Choosing-a-Digital-Projector&id=368724</p> projectorhttp://www.blogger.com/profile/09997708306546507621noreply@blogger.com0tag:blogger.com,1999:blog-7043909173089276604.post-5315273219858236582008-10-01T05:27:00.001-07:002008-10-01T05:27:21.039-07:00Choosing A Conference Room Projector <p>Choosing A Conference Room Projector<br>By Jim Gelder</p><p>When it comes to choosing a conference room projector, you probably want to run and hide! Thats because most of us dont know much about projectors to begin with and dont know the first thing about how to select one thats appropriate for a conference roomor any room for that matter.</p><p>Thankfully, theres the Internet. Within minutes, you can have all the information on choosing a conference room projector that you could ever want.</p><p>Sorting through all that information, though, can seem overwhelming. So its good to have some questions in mind as you do the research necessary to find the perfect projector for your conference room.</p><p>Some questions you want to ask are:</p><p>How difficult is operating the projector?<br>Is the projector portable or will it need to have a permanent mounting? Which type fits my conference room needs best?<br>What types of presentations will the projector be used for?<br>How much does the projector cost? <br>Does that cost fit my for buying a new conference room projector?<br>Is there a service contract available for the projector?<br>What is the repair policy for the projector?<br>Is the company Im thinking of buying the projector from a reputable and reliable one?<br>Will the projector require any special maintenance or periodic service checks?<br>Are any special supplies needed for the projector?<br>Is the size appropriate for the conference room?<br>If its portable, how much does it weigh?<br>Should I rent, lease, or buy?<br>Is the quality of the brightness satisfactory for the size of my conference room?<br>Do I need to save the receipt so that I can take the purchase off on my taxes?</p><p>These are just a few questions to help you on your way to purchasing (or leasing) a conference room projector. Just remember that cost does not always indicate quality. You can buy a wildly expensive projector that is all wrong for your needs. The opposite is true too: you can get a great projector that fits your needs for a moderate, or even small, investment.</p><p>The trick is in researching projectors and taking the time to read some consumer reviews that are easily found on the web. Before you do anything, though, have a budget in mind and have some idea of what youll be using your projector for. This will help guide your research and make it go more quicklyand be much more effective to boot!</p><p>Jim Gelder is a contributing writer for http://www.projectorian.com a website dedicated to offering information about projectors, projector rentals and also features a listing of local projector rental companies</p><p>Article Source: http://EzineArticles.com/?expert=JimGelder<br>http://EzineArticles.com/?Choosing-A-Conference-Room-Projector&id=113105</p> projectorhttp://www.blogger.com/profile/09997708306546507621noreply@blogger.com0tag:blogger.com,1999:blog-7043909173089276604.post-78806593394596262652008-09-25T08:36:00.001-07:002008-09-25T08:36:19.801-07:00Used LCD Projectors <p>Used LCD Projectors<br>By Ken Marlborough</p><p>Apart from the usual used LCD projectors, those which have been used from some considerable amount of time by someone and are now for sale, there are some other categories of used LCD Projectors.</p><p>One of these categories is called demo projectors - projectors that have been used sparingly in-house for customer demonstrations. The majority of demo projectors generally have 90% or more of the original lamp life remaining at the time of resale. Demo models that are still in production ship with a full manufacturer's warranty. The length of warranty varies on demo models that are no longer in production.</p><p>Another category is refurbished projectors - projectors are most often the source of best projector deals. These projectors have been returned to an authorized factory service center and restored to meet manufacturer's original quality standards. Refurbished projectors feature new lamps, yet the warranty varies by manufacturer.</p><p>Yet another category is bargain buys - projectors that are new, factory-sealed units and are priced less than US $1500. These projectors are typically SVGA resolution, are portable, and feature an adequate amount of brightness for most any environment. Because of their budget price, the length of warranty on these projectors varies.</p><p>There are several Web sites that sell used LCD Projectors over the Internet. However, when buying over the Internet, one should not only look at the security of the mode of payment, but also about the vendor who is selling the product on the Web site. Generally, some people who have bought a product from a vendor leave a comment about the quality of service and product sold by the vendor; these comments are often very helpful in eliminating the vendors with a poor track record.</p><p>Finding a used LCD Projector is not difficult, what is though, is narrowing down to decide on a projector that meets the requirements, comes from a vendor who can be relied upon, and is at available at the best price among all the Web sites on the Internet that sell used LCD projectors.</p><p>LCD Projectors provides detailed information on LCD Projectors, LCD Projector Rentals, LCD Projector Lamps, LCD Video Projectors and more. LCD Projectors is affiliated with Cheap LCD TVs.</p><p>Article Source: http://EzineArticles.com/?expert=KenMarlborough<br>http://EzineArticles.com/?Used-LCD-Projectors&id=405803</p> projectorhttp://www.blogger.com/profile/09997708306546507621noreply@blogger.com0tag:blogger.com,1999:blog-7043909173089276604.post-45082082099666241782008-09-25T03:06:00.001-07:002008-09-25T03:06:56.076-07:00Computer Projector Rentals in Florida <p>Computer Projector Rentals in Florida<br>By Eric Morris</p><p>Computer projector rentals in Florida provide all kinds of computer projectors for short and long term rental in the state. Florida is one of the prominent hubs for all major activities, business centers and educational institutions. Today, there are many rental companies in the state, specializing in computer projector rentals.</p><p>Computer projector rental is the most apt and economical way to possess expensive computer projectors for limited time duration. Today, the computer projector has become an indispensable part of digital presentation in almost all schools, colleges and companies. The enhanced qualities of computer projectors have imparted tremendous changes in the method and quality of presentations. These qualities have led to the popularity of computer projectors among people in all sections of society.</p><p>RUSH Computer Rentals Inc., Fort Lauderdale Computer Rental Service, and Saint Lucie Co. Civic Center are some of the major companies in the field of computer projector rentals in Florida. Most of the rental companies in Florida handle both corporate and personal orders. There are also online computer projector rental companies that provide services to people in and around Florida.</p><p>Depending on the need, one can avail computer projectors for rental in Florida on daily, weekly, monthly and yearly rentals. All types of computer projectors, ranging from mobile computer projectors to meeting room computer projectors, can be availed for rent. Almost all top brands of computer projectors including Infocus, Proxima, Mitsubishi and Toshiba are available in the state for rental. The rental rates are determined by the model and the duration of the rent. It will fluctuate from company to company and from city to city.</p><p>However, getting computer projectors for rental is a complex task, as most projectors are designed for different operating systems and even processors. Thus, it is always advisable to determine the type of the computer projector you need before renting it.</p><p>Computer Rentals provides detailed information on computer rentals, laptop computer rentals, computer projector rentals, desktop computer rentals and more. Computer Rentals is affiliated with Laptop Computer Sales.</p><p>Article Source: http://EzineArticles.com/?expert=EricMorris<br>http://EzineArticles.com/?Computer-Projector-Rentals-in-Florida&id=353016</p> projectorhttp://www.blogger.com/profile/09997708306546507621noreply@blogger.com0tag:blogger.com,1999:blog-7043909173089276604.post-32826587445570836302008-09-21T05:05:00.001-07:002008-09-21T05:05:40.541-07:00Ceiling Mount a Home Theater Front Projector Metalcraft Mounting System <p>Ceiling Mount a Home Theater Front Projector - Metalcraft Mounting System<br>By Kyle Kolbe</p><p>After I fainted from sticker shock at the pricing of the official Sanyo PLV-Z3 projector ceiling mount ($200), I found a much cheaper solution. For $36.95 I could buy a Metalcraft all metal adjustable ceiling mount off ebay.</p><p>Mounting a projector to my ceiling was easier than I thought. Heres how I did it.</p><p>Tools youll need:</p><p>* Philips Hand Screw Driver</p><p>* Circular Level</p><p>* EZ Anchor Stud Solvers</p><p>* Tape Measure</p><p>* Step Ladder</p><p>Size up the mounting hardware: The Metalcraft mounts ceiling plate is large measuring five by five inches square with six pre-drilled holes for ceiling screws. A post descends to the projector mount plate.</p><p>How I measured my room for optimum mount placement: Bisecting the width of the room, considering the airduct, and measuring eleven and a half feet from the front projector screens surface plus the half the length of the mounting plate, I placed the plate on the ceiling and marked each screw hole.</p><p>Anchored to ceiling: Wear safety goggles to avoid getting ceiling board dust in your eyes. I removed the plate and drove the metal EZ Anchor Stud Solver anchors until they were flush with the ceiling. The EZ Anchors are great because you never have to drill a pilot hole for the self-tapping anchors. I replaced the plate over the anchors and drove each #8 screw into its anchor. You may need an extra hand to hold the plate in place while you tighten the first two to four screws.</p><p>Attach the projector plate before attaching to ceiling plate: Since the mount assembly breaks into two parts, one attaching to the ceiling with a post that screws into the adjustment plate for the projector, you can screw and tighten the hex screws and plastic bushings to the projector body.</p><p>Secure the projector plate to the ceiling mount: The Metalcraft ceiling mounts post accepts a adjustable knob screw. You will need someone to help you get the screw started while they lift up the projector. With the screw tight you can rotate the projector from left to right on the ceiling post.</p><p>Fine-tuning: The Metalcraft mount allows yaw, pitch and rotation. With the hand tightening of knobs on the projector mount plate you can canter your projector perfectly on your projection screen. With the aid of a circular bubble level you can level the projector from front to back and left to right using the corresponding thumb knobs. With projector level you can then adjust your lense up and down and to the side for a perfect screen fill with no keystone distortion correction.</p><p>Caveat: The Metalcraft mount is wobbly because of the thinness of the metal used on the metal band that holds the projector mount to the ceiling mount post. When you need to change interconnects or adjust manual focus and zoom the projector rocks slightly as the metal gives. This does not cause the projector to fall out of register, though. Hey$36.95what do you expect?</p><p>The Metalcraft Mounting System for the Sanyo PLV-Z3 LCD projector (and many other projector brands and models) is a great bargain and very reliable. Highly recommended.</p><p>Father, Husband and Geek. My geeky interests have not changed since I was a kid. I still love comic books, anime, role-playing games, console video games, indie rock, imported toys and mecha models, bad American and great British sitcoms, and all the tech that lets me experience these hobbies to their fullest. Now that Im married with children, Ive had to strike a balance between supporting and pleasing my family and feeding my geekery hunger. Lucky for me, my wife is very accomodating and even geeks out with me on occasion (the ladies love Joss Whedons Firefly). My two year old likes anything that moves on the front projection screen and makes noise, so far she is easy to please. Geekwithfamily.com exists to enrich the lives of fellow geeks and the friends and family who put up with them.</p><p>Article Source: http://EzineArticles.com/?expert=KyleKolbe<br>http://EzineArticles.com/?Ceiling-Mount-a-Home-Theater-Front-Projector---Metalcraft-Mounting-System&id=207007</p> projectorhttp://www.blogger.com/profile/09997708306546507621noreply@blogger.com0tag:blogger.com,1999:blog-7043909173089276604.post-9652774225275085082008-09-18T09:06:00.001-07:002008-09-18T09:06:40.698-07:00Using a Digital Projector <p>Using a Digital Projector<br>By Luke Kent</p><p>Many schools have one or several digital projectors available for educators to use. Many people are worried that making slideshows and setting up the equipment will take too much effort andtime. On the contrary, the use of digital projectors saves timeand can take minimal effort.</p><p>Most digital projectors take no time to set-up. Have someone show you how to set-up the projector a few times and then try ityourself several times until you are comfortable setting up the projector on your own. Each projector and computer have theirown little quirks so having someone who is familiar with the system will prevent running into trouble in the future.</p><p>Creating slide shows for your lessons may take a little effort inthe beginning, however, once these lessons are created they will be saved for you to reuse or to tweak. There are also websites like http://MrKent.Net that provide subject specific slide shows for you to change or use as you please.</p><p>The only way to find out if using a digital projector is for youis to give it a try. Create or download a short lesson and present it to your students to compare it to your regular lessonFormat. One thing you will notice right away is that you spend more time interacting with your class and less time writing and erasing items on the board.</p><p>Mr. L. Kent is an experienced educator and president of MrKent.Net - Education Technology Made Simple.</p><p>For more educational techology tips and reviews please visit us at http://www.mrkent.net/ - Education Techology Made Simple.</p><p>Article Source: http://EzineArticles.com/?expert=LukeKent<br>http://EzineArticles.com/?Using-a-Digital-Projector&id=368723</p> projectorhttp://www.blogger.com/profile/09997708306546507621noreply@blogger.com0tag:blogger.com,1999:blog-7043909173089276604.post-91994100856066974152008-09-18T08:53:00.001-07:002008-09-18T08:53:57.575-07:00Buyers Guide to Home Theater Projectors <p>Buyers Guide to Home Theater Projectors<br>By Warren Thompson</p><p>Over the years, I have grown really attached to my home theater system. I must say, of all the rooms in the house, my own little movie theater is the one I could not live without. I am absolutely in love with my home theater system and, if you are anything like me, I am sure you will love yours too. I found, when I was initially building my system, that there was so much information to absorb. Every product out there seemed better than the next, and I found myself unsure about which to buy. Here are a few things to keep in mind when shopping for a new home theater projector.</p><p>There are two main types of projectors on the market; DLP and LCD. DLP stands for digital light processing. It was invented by Texas Instruments, and utilizes a microscopic array of over 2 million mirrors. DLP has a higher contrast than LCD, but there are some unfavorable consumer reports that note something called the ainbow effect. The ainbow effect is noticeable when looking from one side of the screen to the other, and is characterized by a sudden burst of color.</p><p>LCD stands for liquid crystal display. These projectors have three distinct glass LCD panels inside; one for each component of the video signal (red, green, and blue). While DLP chips reflect light, the LCD panels allow light to pass through them. LCD projectors produce brighter images, and they are known for having excellent color saturation. In the end, you will be hard-pressed to notice a great difference between the two types of projection systems.</p><p>When shopping for a new projector, keep your particular needs in the forefront of your thoughts. As I mentioned above, it is really easy to lose yourself in the minutiae of each particular system. Connectivity is a definitely something to be mindful of. Make sure that you are able to connect all of your components, including your gaming system. Nothing beats playing Halo in real-life size! Contract ratio is another important factor; the higher the ratio, the better the picture will be.</p><p>The brightness of your projector is another thing to consider. Light output is measured in ANSI (American National Standards Institute) lumens. You will want to avoid a projector that produces anything shy of 1000 lumens. As you are likely aware, the projection resolution is extremely important. This refers to the number of pixels that can be displayed on the screen. Go for something that is no less than 1024x768, as this will allow you to fully appreciate the depth and quality of HDTV. In the end, you should buy the projector that is in line with your needs and your budget. Soprano's is coming on right now! Time to go!</p><p>Warren Thompson is like a kid in a candy store, when it comes to home theater products. When he can drag himself away from his miniature movie theater, he writes for hometheaterfocus.com an excellent resource for information about soundproofing, digital video recorders, wiring diagrams and more.</p><p>Article Source: http://EzineArticles.com/?expert=WarrenThompson<br>http://EzineArticles.com/?Buyers-Guide-to-Home-Theater-Projectors&id=188234</p> projectorhttp://www.blogger.com/profile/09997708306546507621noreply@blogger.com0tag:blogger.com,1999:blog-7043909173089276604.post-71530313053664053242008-09-16T09:04:00.001-07:002008-09-16T09:04:49.077-07:00Build Your Own LCD Video Projector <p>Build Your Own LCD Video Projector<br>By Andrew Seltz</p><p>Mix big screen home theater dreams with a skimpy budget and you have the makings of a fantastic do-it-yourself project. Just think of how impressed all your friends will be watching blockbuster movies on a video projector you made with your own 2 hands.</p><p>It was just these motivations that landed me in front of my web browser digging for information for this project. There are a lot of cheesy websites that promise the moon and sell you a plastic magnifying lense and the instructions to stick a television into a box and put this lens on the front. You will get an image, but it will look like you made it yourself. - dark, and blurry.</p><p>Is there any way to make this work? The short answer is yes. A video projector is essentially a high resolution LCD video screen with a really bright light shining through it and a projector lense enlarging onto the screen. New portable models use very tiny, and expensive, LCDs along with sophisticated light sources and high quality lenses. If you are willing to end up with a projector that isn't quite so tiny, you can scavenge the parts you need from an LCD computer monitor and add some electronic components and relatively inexpensive lenses. For $200-$500 you should be able to create a high resolution bright projector that will really impress your friends.</p><p>The parts you need are:<ul><li>High resolution LCD computer monitor </li></p><p><li>Projector lens (and possibly 2 fresnel lenses depending on the plans you use)</li></p><p><li>Cooling fan(s) - bright lights get hot when you shove them in a box</li></p><p><li>Bright lightsource (one approach to the project is to use an old overhead projector)</li></p><p><li>Electrical power supply</li></ul></p><p>There are dozens of websites with step-by-step plans for free or for sale. Some sell parts that you'll need. Two that I've found to be excellent are LumenLab and the DIY Projector Company. They both sell parts and parts kits. LumenLab sells a very nicely produced PDF instruction guide with detailed plans. DIY offers plans free, but expects that you'll buy one of their kits to actually make the projector. They both use the LCD in a box with a lamp approach.</p><p>InventGeek has a great article explaining the whole process in depth including the theory behind projectors. I recommend you check it out. The DenGuru website shows another approach to the project. They use an old overhead projector for both the lightsource and lens. You strip the LCD panel out of its frame and lay it on the projector like a transparency. Ugly, but it works! Check out their tutorial.</p><p>Break out your toolkit and get busy - and let's be safe out there people!</p><p>Andrew Seltz is a Go-To Guy! His wide range of interests and experiences have made him a walking search engine for his friends and colleagues. His passion for film and video production have made him particularly interested in Big Screen Televisions and Home Theaters. Visit his site: http://www.ColossalTV.com</p><p>Article Source: http://EzineArticles.com/?expert=AndrewSeltz<br>http://EzineArticles.com/?Build-Your-Own-LCD-Video-Projector&id=149947</p> projectorhttp://www.blogger.com/profile/09997708306546507621noreply@blogger.com0tag:blogger.com,1999:blog-7043909173089276604.post-23654402150263321422008-09-15T04:39:00.001-07:002008-09-15T04:39:45.740-07:00Computer Projector Rentals <p>Computer Projector Rentals<br>By Eric Morris</p><p>Computer projectors have become indispensable for company presentations. The audio-visual impact alone really drives a difficult point home.</p><p>Most computer renting companies also provide computer projectors. However renting a computer projector can be complex as projectors are custom-designed for different operating systems and even processors. Before renting, a company will ask what computer will be used: iMac computers use different types of projectors than IBM. The resolution and the video card of the computer also matter in the final output on the projector.</p><p>Another factor is the room size and lighting. Rooms that cannot be darkened would preferably need a LCD screen. LCD screen would also Plasma monitors would suffice if the assembly will be small. The size of the monitor would also depend on the size of the room and how far the people are going to sit from the display. Sound quality is also affected by the size of the room.</p><p>Before renting a projector, inform the renting company whether videos are to be shown or just slides and transparencies.</p><p>Computer projector renting companies usually setup the entire audio-visual equipment when a rental order is placed. Get the whole thing checked, for video and sound quality. Also try out the projector before hand, especially if there are laptops to be used. The renting company also undertakes the dismantling of the unit after the program is completed.</p><p>Renting companies allow their projectors to travel with the business if necessary. For portable projectors, insist on a case to pack the equipment. Also the projector itself should be lightweight, not weighing more than 10 pounds.</p><p>Costs of renting computer projectors are tax deductible if they are used for business. Companies may pay for them using checks or their company credit card.</p><p>Computer Rentals provides detailed information about computer rentals, laptop computer rentals, computer projector rentals, desktop computer rentals and more. Computer Rentals is the sister site of Nature Screensavers.</p><p>Article Source: http://EzineArticles.com/?expert=EricMorris<br>http://EzineArticles.com/?Computer-Projector-Rentals&id=138443</p> projectorhttp://www.blogger.com/profile/09997708306546507621noreply@blogger.com0tag:blogger.com,1999:blog-7043909173089276604.post-53082041107661402008-09-14T08:15:00.001-07:002008-09-14T08:15:26.144-07:00Benefits of a HighQuality LCD Projector Lamp for Your LCD <p>Benefits of a High-Quality LCD Projector Lamp for Your LCD<br>By Enreek Kahlon</p><p>In terms of multimedia presentations, LCD projectors have proven to provide impressive image quality and high resolutions. However, if your projector suddenly fails to work and you need to present a proposal with potential clients, it could cause your business to lose money, or worse, it could cause your job.</p><p>The most common problem of projectors is the sudden burn out of LCD projector lamps. Fortunately, these LCD projector lamps can be easily replaced. Although anyone can replace the lamps for your LCD projector, choosing the lamp can be an overwhelming task. You need to ensure that the type of lamp you buy is compatible with your projector.</p><p>A high-quality LCD projector lamp should be able to operate for over 4,000 hours. However, the measurements of lamp life are not reliable because the lamp can still work, even if it becomes dimmer. For this reason, you need to check the peak lamp life listed in most manufacturers of LCD projector lamps, which provides users with information of the total brightness a particular lamp could provide.</p><p>Choosing a high-quality lamp for your LCD projector should be your first concern, instead of price. Compared to the affordable halogen lamps that last about 70 hours, metal halide lamps can work up to 500 hours. Meaning, the more expensive LCD projector lamp you choose, the longer-lasting life it would provide.</p><p>How to Choose an LCD Projector Lamp</p><p>There are only two types of lamps used in LCD projectors metal halide and tungsten halogen. In order to choose a quality lamp, you have to understand how each one works.</p><p>A metal-halide lamp provides better brightness, but lower consumption of power. Be aware that lamp wattages do not reflect the brightness. Metal-halide LCD projector lamps are more efficient because it could provide your projector with a very white light until the end of its life.</p><p>On the other hand, tungsten-halogen lamps produce whiter lights because it runs at a higher temperature than other lamps. Although the white light will become yellow during its lifetime, it provides a longer lamp life because of its low-pressure and high temperature features.</p><p>Although metal-halide LCD projector lamps are more expensive, they could provide over 2,000 hours compared to the tungsten-halogen lamps 70 hours of operation. Be aware that lamps of your projectors could last longer when you operate them in economy mode, which automatically cools down when the projector becomes idle.</p><p>How to get the best LCD Displays, TVS, computer monitors and more. This is must read before you decide to buy... LCDs and LCD Displays, at http://www.dreamtekk.com</p><p>Article Source: http://EzineArticles.com/?expert=EnreekKahlon<br>http://EzineArticles.com/?Benefits-of-a-High-Quality-LCD-Projector-Lamp-for-Your-LCD&id=470271</p> projectorhttp://www.blogger.com/profile/09997708306546507621noreply@blogger.com0tag:blogger.com,1999:blog-7043909173089276604.post-35711941566344905502008-09-14T07:54:00.001-07:002008-09-14T07:54:26.582-07:00Video Projector Guide <p>Video Projector Guide<br>By Riad Haddad</p><p>Well; the world of Projection is certainly a vast place to wonder uninformed, so get informed. I will try to keep this guide as simple as possible.</p><p>Things to look for when buying a projector:Manufacturer/MakeThere are many projector manufacturers these days that make it seem impossible to choose from. But to make it simpler, many manufacturers now a days use parts that are supplied from other manufacturer. In other word not all the parts in a projector is manufactured by the same manufacturer. Thus many projectors already have similar components incorporated into them. Always read reviews posted on computer magazines and online computer magazines before purchasing high end/high priced projector. Look for a company that offers the best warranty & support. Brands like Sony, Panasonic, Toshiba, Sharp, In-focus, View sonic, Mitsubishi, Epson are amongst the best there is.</p><p>TechnologyThere are many technologies available today. But the main two types are LCD & DLP. In simple DLP which stands for Digital Light Processing uses hair width tiny mirrors to reflect light into a screen. DLP offer better overall image but cost a lot more. So for home users its better to opt for LCD based projector because of there much lower price and higher availability. Also LCD projector offer excellent image that is comparable to DLP. Big companies and presentation oriented businesses well find DLP a better choice. There are also projections panels. Projections panels are a form of transparent display that are placed over an ordinary Overhead projector and used to project the same type of video sources that normal projector use. Projection panels are cheaper than the types described earlier.CRT Projectors are an old projection technology that is no longer used these days.</p><p>ResolutionResolution is very important aspect to consider when purchasing a projector. Many older models are VGA (640*480) & SVGA (800*600); these models are good for displaying movies and other low resolution images, but will no be sufficient for projecting high quality images demanded by high end application such as 3d modeling, games, simulators and CAD. Check the simple chart below:</p><p>640*480 (VGA) resolutions are good for Video Games, VHS, VCD and Standalone DVD users. This panel is perfect for DIYers wanting to keep costs at lowest.800*600 (SVGA) resolutions are perfect for Computer based DVD playback and normal Windows and operation system work. (Plus all the above)1024*768 (XGA) resolution is perfect for high resolution Computer Games and design applications such as AutoCAD (plus all the above)1280*1024 (SXGA) resolution is perfect for HDTV applications and computer software that require high detail (plus all the above)</p><p>Color DepthColor depth states how good the LCD represents color. Its the number of colors a monitor or an LCD panel is able to show. A good color depth is 16-Bit; although 24-Bit is strongly advised, this is the color depth that most high end projection panels have.</p><p>Lamps An important thing to investigate is the type of lamp used. Check the replacement price of lamps and life expectancy. It would make you no good if you purchase a low price projector and later find out that every lamp replacement will cost you 400$. New lamp models can work for a minimum of 10,000 hrs.</p><p>BrightnessBrightness output is expressed in lumens. The higher the lumens the better the image is displayed in less than perfect lighting conditions. Some new projector models can display a vivid image even with the light on. 2000 lumens is a good choice for home use. Choose 3000-4000 for presentation theaters and jobs that require a bright image in a not too darkened room. Lumens rating of below 2000 such as the low priced 1300 models will have to be operated in a completely darkened room (Pitch Black).</p><p>ConnectionsConnections are a very important factor when choosing a projector. Composite, S-Video and RGB is almost standard on most models. You will need RGB for hooking your computer or laptop; Composite & S-Video for connecting DVD players and VCRs. Some newer models have DVI inputs too that enable them to be connected to high quality video systems like a video editor or digital video cameras. A remote control is a must; you don't wan to get out of your comfy chair every five minutes. Some applications require two RGB connections for simultaneous viewing of different video sources, so make sure to check for it if you need it.</p><p>Long throw/Short throw projectionIts important to decide where you are going to place the projector. If the projector is going to be placed in front of an audience then you will need a short throw projector. And if you need to fix the projector some where behind the audience (Far from screen) you will need a long throw projector. What happens when you use short throw projector for a behind the audience application is that the image will be too large to fit on screen, and if you use a long throw projector for short distances you will get a very small and unclear image.</p><p>DIY ProjectorsWell this is interesting. Did you know that you can build a projector yourself, its not that hard really and it will cost you a fraction of retail prices? You should have basic knowledge with DIY projects. The image quality is very good you won't believe it. Though some patience is required in order to complete the projector.</p><p>-------------------------------------------------------------------------------------------------------</p><p>** You are free to publish this article by any delivery method you see fit. But you are kindly asked keep the article intact and as is.</p><p>Riad Haddad is a Software Developer and Internet Marketer specializing in state of the art custom solutions; from database development to website marketing.</p><p>www.fitsoftinc.com</p><p>Article Source: http://EzineArticles.com/?expert=RiadHaddad<br>http://EzineArticles.com/?Video-Projector-Guide&id=324767</p> projectorhttp://www.blogger.com/profile/09997708306546507621noreply@blogger.com0tag:blogger.com,1999:blog-7043909173089276604.post-34008045306826630732008-09-12T09:15:00.001-07:002008-09-12T09:15:36.484-07:00Video Projector Rentals <p>Video Projector Rentals<br>By Marcus Peterson</p><p>A video projector is a device that projects a video or computer image onto a screen. The commonly used inputs are video cassette players, CD and DVD players and PowerPoint presentations from computers. Some computers have CD as well as DVD drives which support these discs. Some projectors dont have VGA connectors, which take inputs from a computer.</p><p>A video projector employs one of three technologies: CRT, LCD and DLP. CRT projectors are just like television, i.e. they employ cathode ray tubes. The limitations of CRT video projectors are the heavy size and the requirement of absolute darkness for clarity of the picture. LCD projectors employ a special chip so that the advantage is that the projector is very compact. Besides, it has excellent contrast and brightness. The LCD projector employs individual pixels, which produces high resolution. The limitation of a LCD is it produces a screen door effect. Also the repair of one would result in a dark spot on the screen.</p><p>DLP technology employs a Digital Micromirror Device, instead of a chip. DLP projectors are highly suitable for viewing movies and also other multimedia presentations. The advantages of DLP projector include color accuracy and no screen door effect.</p><p>LCD and DLP video projectors are the favorites and therefore most of the inventory of the rental companies are the above mentioned ones. The rates of these projectors start at $100 and are dependent upon factors such as the resolution and weight. The rental companies provide support throughout the whole day and night. This includes online or phone booking, shipment, installation, and operation support.</p><p>Hotels, resorts, convention centers and conference halls enter into contract with rental companies to provide these services. The rental companies have chains of shops across a particular region or nationwide networks. The directories of these service providers can be obtained online, which directs them to the individual websites.</p><p>Projector Rentals provides detailed information on Computer Projector Rentals: A Guide, DVD Projector Rentals, Film Projector Rentals, LCD Projector Rentals and more. Projector Rentals is affiliated with DLP Projectors.</p><p>Article Source: http://EzineArticles.com/?expert=MarcusPeterson<br>http://EzineArticles.com/?Video-Projector-Rentals&id=219993</p> projectorhttp://www.blogger.com/profile/09997708306546507621noreply@blogger.com0tag:blogger.com,1999:blog-7043909173089276604.post-73880368076447882392008-09-11T05:47:00.001-07:002008-09-11T05:47:36.148-07:00Video Projector Screens <p>Video Projector Screens<br>By Jennifer Bailey</p><p>A projector is an apparatus for presenting an enlarged image on a screen from a transparency such as a photographic slide or a film. In a motion picture projector, each frame is held stationary at an illuminated aperture for a brief period, and then advanced by an intermittent sprocket or reciprocating claw, the light being cut off by a rotating shutter during the movement. One should have a clear idea about video projectors before buying video projector screens.</p><p>Video projectors have become common and captured the market throughout the world. They are especially common in schools and colleges where it becomes necessary to show videos and films (especially in film schools and institutes), or any place where people need to show films on a regular basis at a cheap rate to a large number of people.</p><p>There is a wide range of video projector screens available in the market. One can buy the kind of video projector screen one wants depending on the kind of surface. The surfaces vary from smooth to rough, and minutely undulated ones. However, before considering any video projector screens, one should consider the following elements: resolution, brightness or reflectivity, contrast, color accuracy, and build quality.</p><p>Some of the white (or gray) video projection screens can bring about a difference in resolution, or image detail. There should be a rating to indicate its inherent reflectivity, on which the brightness of the image depends. Contrast of the image is also dependent to great extent on the video projection screen. A screen should not reflect any color other than that of the projector itself.</p><p>Projector Screens provides detailed information on Projector Screens, Video Projector Screens, Home Theater Projector Screens, Electric Projector Screens and more. Projector Screens is affiliated with Large Format Flatbed Scanners.</p><p>Article Source: http://EzineArticles.com/?expert=JenniferBailey<br>http://EzineArticles.com/?Video-Projector-Screens&id=247743</p> projectorhttp://www.blogger.com/profile/09997708306546507621noreply@blogger.com0