Build Your Own LCD Video Projector

Build Your Own LCD Video Projector
By Andrew Seltz

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.

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.

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.

The parts you need are:

• High resolution LCD computer monitor
• Projector lens (and possibly 2 fresnel lenses depending on the plans you use)
• Cooling fan(s) - bright lights get hot when you shove them in a box
• Bright lightsource (one approach to the project is to use an old overhead projector)
• Electrical power supply

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.

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.

Break out your toolkit and get busy - and let's be safe out there people!

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

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Video Projectors Advice On Choosing The Right Model For Home Or Business

Video Projectors - Advice On Choosing The Right Model For Home Or Business
By Steve Jones

As video projectors become more affordable then more people are using them both at work and at home. You might be thinking that projectors are all alike and the more you spend the better it will be. Well this is not strictly true. The more expensive projectors will be of a higher standard, but you might not experience any benefit if you do not choose the correct model. This is why we have written this article to try and guide you and help you choose the model most suited to you.

Before any purchase it is important to have a think about what you will be using it for and in what kind of environment. The business user will have very different requirements to someone wanting to set up a home cinema. Companies are now marketing hybrid projectors that claim to be able to be used for both home cinema and business. These two environments are very different though and will need projectors designed specifically to be able to handle these two very different uses. As you read the rest of the article you will begin to understand what you need to look out for when purchasing your video projector.

LCD or DLP

Both are excellent formats and which you choose will depend on your use. The business user will be more suited to an LCD projector due to the increased brightness. The home user on the other hand would be better to opt for a DLP projector as these will give a more cinematic experience.

Brightness

Think about the level of ambient light in the room where you will be using your projector. In the home cinema you will hopefully have control of the level of light so this will not be an issue. If you are using a room at home that has ambient light then you will need to opt for a brighter projector. In the business arena you are likely to be presenting in very bright rooms with standard office lighting and windows. A good projector for business use will need to have a high brightness level.

Brightness is measured in ANSI lumens. For home cinema you should be looking at projectors that have around 700 ANSI lumens brightness and for business projectors you will need between 1000 and 1500.

Color

The color, gray-scale performance, and video playback, are only really important to the home user as they will give more natural and detailed videos.

Contrast

There is no point spending money on a high contrast video projector for business use or use in a room at home that has significant ambient light as your eyes will not notice the benefit. If you have a dedicated cinema room at home then it will be worth looking at projectors with contrast ratios of 400:1 or higher. If you are looking for a projector for business use then there is no point by one with a ratio of higher than 400:1

Portability

This will probably only be an issue for a business user. If you travel around a lot and take your projector with you then the more compact and light the better. It is possible to buy extremely light projectors.

The home user may not be concerned too much with size and weight, but it is worth considering how you will set your projector up at home. Will it be fixed to the ceiling or on a stand? If you have it on the ceiling you should look for a projector which comes with a remote control as this will make adjusting settings a lot easier.

We hope that this look at the differences with video projectors will help you make your decision.

Find more articles by Steve Jones at http://www.a1-lcdprojectors.com.

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Benefits of a HighQuality LCD Projector Lamp for Your LCD

Benefits of a High-Quality LCD Projector Lamp for Your LCD
By Enreek Kahlon

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.

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.

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.

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.

How to Choose an LCD Projector Lamp

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.

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.

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.

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.

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

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LCD Projectors for Sale

LCD Projectors for Sale
By Ken Marlborough

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.

Resolution

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.

Brightness

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.

Price and other considerations

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.

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.

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Auditorium LCD Projectors

Auditorium LCD Projectors
By Ken Marlborough

Auditorium LCD Projectors are generally up to 40kg in weight, with 3,000 lumens (a measure of brightness) and above, have SVGA (brightness range from 1700 - 2000 lumens) or XGA (brightness range from 2000 - 3000 lumens, are more expensive than SVGA) native resolution. Auditorium projectors are mostly LCD projectors and usually come with a ceiling or rear mount facility. They usually have motorized zoom lens, are generally operated via remote control and offer multiple input and output ports for both PC and video. Auditorium LCD Projectors generally require external speakers and are targeted at spacious venues like theaters, auditoriums and convention halls.

In other words, auditorium LCD projectors are heavy duty, and super bright, allowing them to provide the added illumination for very large applications. These projectors deliver high brightness that can be used in a wide range of places. They generally come with a lens shift function and a wide range of optional, interchangeable lenses also contributes to installation ease. These LCD Projectors have a variety of functions for high picture quality and network compatibility is also included. Providing realistic colors, sharp contrast, and super bright images, they enable presentations with persuasive impact in a variety of situations.

Some factors which help in choosing a better Auditorium LCD Projector are: Lumens, Resolution, Lens Power, Keystone Correction, Scanning Frequency, Contrast, Lens Throw Ratio, Aspect Ratio, Image Offset Range, Computer Compatibility, Video Compatibility, Image and Mouse control, Projection Modes, Color Reproduction and Lamp Life.

These projectors generally have a specially designed auto focus lens, which allows for quick and easy switching between multiple screens with minimal user adjustments. Their automatic color correction feature provides true color reproduction even when projecting onto colored or textured walls for a perfect presentation anywhere. Some of them have a 3-D Reform technology, which lets one set up the projector virtually anywhere in the room and still get an aligned image.

While choosing the right LCD projector for an auditorium, the dimensions of the auditorium, the ambient light conditions and the distance where the projector will be placed from the screen should considered and projectors whose specifications exceed the requirements should be considered.

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.

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Computer Projector Rentals in New York

Computer Projector Rentals in New York
By Eric Morris

New York is renowned as the business capital of the world. People from in and around the country come to this place for various business activities. If you are planning a business meeting or conference in New York, computer projector rentals in New York will cater to all your presentation needs. Computer projectors are quite expensive, and availing it for rental will be a cost effective way to own it.

In recent years, the computer projector has become an integral part of presentations and seminars in schools, colleges and companies. Computer projectors have brought about a tremendous change in the conventional presentation. Enhanced technology and high quality presentation have led to the popularity of computer projectors among different sections of society. However, they are more in demand among students and businessmen.

With the popularity and increase in the demand for computer projectors, many companies have come forward in renting different types and models of computer projectors, especially in New York. RUSH Computer Rentals Inc. at Connecticut, G and G Technologies at New Jersey, Fort Lauderdale Computer Rental Service, and Saint Lucie Co. Civic Center at Florida are prominent computer projector rental companies. Today, almost all computer projector rental companies operate online.

Depending on the need, rental companies offer computer projectors for short and long term rental. Generally, these companies lend computer projectors for a day to 3 years. The rental rates will be based on the model and the duration of the rent. For example, a 3M 955 overhead projector is charged $65 for a day, while a higher end computer projector will be charged $200 a day. Thus, it is always important to determine the duration and the model you need before getting it for rental. Computer projector rentals are always a viable option, especially for a short period.

The rental rates fluctuate from one state to another. Still, the rental rates in New York are considerably lesser than other states in the country. Hence, computer projector rentals in New York are the best option to avail cutting edge technologies at very reasonable prices.

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.

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Computer Projector Rentals

Computer Projector Rentals
By Eric Morris

Computer projectors have become indispensable for company presentations. The audio-visual impact alone really drives a difficult point home.

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.

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.

Before renting a projector, inform the renting company whether videos are to be shown or just slides and transparencies.

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.

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.

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.

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.

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An Introduction To LCD Projector Rentals

An Introduction To LCD Projector Rentals
By Marcus Peterson

LCD is a technology that is used to present a digital image for viewing, for instance, on a laptop or via a projector. LCD is the acronym for Liquid Crystal Display. Most projectors use LCD technology. They can easily incorporate text, graphics and video. These types of projectors are also known as PowerPoint projectors since they are mostly used for presenting PowerPoint slides by corporate houses and business houses for business and sales presentations.

LCD projectors are versatile, reliable and portable. They can be easily connected to video, PC and laptops; they are compatible to most systems. They can project images on any surface with equal brightness. They can present data, graphics and video. These projectors weigh less; they are easily transportable. They have long-life bulbs. They have built-in speakers.

LCD projectors are characterized by resolution, luminescence, dimension, weight and contrast. Resolution is defined as the number of horizontal picture dots times the number of vertical picture dots. Most projectors are usually XGA or SXGA i.e. 1024 X 768 pixels or 1280 X 1024 pixels. LCD projectors have a brightness or Lumens of 1000-5000 lumens. They vary in size from small to bigger sizes and they weigh two pounds to 100 pounds. The contrast ratio determines the handling of the subtler colors.

The major suppliers of LCD projectors are Toshiba, Sanyo, Hitachi, Canon and Plus. These manufacturers cater to all the segments with prices ranging from $1,000 to $15,000.

The rates of LCD projectors depend upon the type of projector and usually the daily rates vary from $100 to $300. The rates for multiple days are given with discounts.

LCD projectors are mostly used for conferences, staging events and business presentations. Their high resolution, ability to handle colors, and quick start up make them a powerful piece of multimedia equipment to convey the message across a large audience.

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.

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An Introduction To Home Theater Projector Screens

An Introduction To Home Theater Projector Screens
By Jennifer Bailey

Home theater projector screens are great for when you want a real movie house experience. When there is a projection of a video or an image, the presence of a projector screen is inevitable. A projector screen is a specially made flat screen to be hung on the wall or erected vertically where the image is reflected, so that the image size is enlarged. The surfaces of such screens are usually rough, and white in color.

There are quite a number of types of projector screens. They are home cinema projector screens, portable projector screens, manual projector screens, electric projector screens, fixed frame projector screens, and also movie board home cinema projection screens.

All these screens are used as home theater projector screens. These home theater screens are available in multiple, specialized projection materials tailor-made to add to the video quality. These home theater projector screens can easily be put in a training room, board room, or auditorium. All these screens are available in various dimensions starting from the standard 4:3 size to as large as 16:9 ratios. Most of the home theater projector screens are also available with black masking borders, in Video TV format, with stylish curved aluminum extruded cases, motor in-the-roller design for quiet operation, and other such facilities.

Some of the top home theater projectors are the Sanyo PLV-Z4, Panasonic PT-AE900U, BenQ PE8720, Epson Power Lite Cinema 550, NEC HT510, Optoma H31, In Focus Screen Play 4805, Sony VPL-VW100, Optoma Movie Time DV10, Runco Signature Cinema SC-1 and Sharp Vision XV-Z20000.

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.

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6 Steps To Getting A Perfect Projector

6 Steps To Getting A Perfect Projector
By Timothy Wong

Follow this step-by-step article, and you won't go wrong.

1. Low-cost projectors normally make two main sacrifices. The brightness, which is measured in ANSI lumens, will be relatively low, and the native resolution will be limited to 800x600. Neither one of these will be serious drawbacks providing you lower your room lights, draw the blinds, and there isnt too much detail in your slides. Home cinemas definitely do not require anything more. Movie enthusiasts are more likely to be concerned with the lamp life and replacement cost.

2. Image quality is obviously important but very hard to test based on specifications. A high contrast (500:1 or above) ratio adds depth to the picture and is one substantial benefit of projectors based on digital light processing (DLT), as opposed to the older LCD technology. Do keep in mind though; the optics and color balance cannot be assessed without consulting a review.

3. Where you will be using your projector also needs to be put into question. Size and weight are obviously very important if youll be moving the piece around a lot. If portability is a factor, aim for a projector that is less than 3kg. Small rooms will demand a quiet (below 33dB) projector with a flexible throw distance or how close or far away the screen must be. Most projectors can rotate or mirror their image to cope with ceiling mounting or rear projection.

4. Make sure the projector you are looking at covers all the signals you might want to feed it with. Common video formats are supported by almost all projectors, but high-resolution VGA signals arent. High quality pictures will only display at their best only on pricier projectors, with a 1,024x768 native resolution.

5. Top-of-the-range projectors have 2,000 ANSI lumens brightness or more to overpower brightly lit rooms. They also come with a handful of useful features that make presentations look and sound slicker, as well as making it easier for the presenter. Anti-theft features may also be something worth looking into.

6. After sales Warranty and support is definitely a must, especially for the heavier users. Make sure you have access to bulb replacements (or replacement service).

Recommended Minimum Specs-

Native Resolution: 800x600 Brightness: 1,100 ANSI Lumens Contrast Ration: 500:1 Lamp Life: 2,000 hours Check: Weight, throw distance and noise.

This article was written by Timothy Wong, a technology blogger.Visit his website at: http://www.timw.com

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What You Should Know About Buying Projector From Ebay Or Online Auction

What You Should Know About Buying Projector From Ebay Or Online Auction
By Clifford Tan

Many people wish to purchase a home projection theater system but still have to work within the constraints of a budget. Can a budget projector be a viable alternative? While a thousand dollars is still a lot of money, it really is not so much to pay for a good home theater projection system. A good home theater will provide years of entertainment from movies, to video and computer games to vacation picture slideshows. How though, can someone find a projector for less than one thousand dollars? How can anybody find a quality projector that also fits the category of a cheap projector? How can they make sure it is going to suit their needs?

One of the most obvious options is through auctions. This is a very difficult way to purchase a projector. The main reason is that all you can do is asking questions of someone who has already proven that they are a motivated seller, proven by the very fact that they have posted the projector on an online auction. Bidding online can be done with some level of confidence though. It is very easy to conceive of getting a very good multimedia projector for less than a thousand dollars in this manner.

Making sure you ask the questions you want answered is the first challenge in finding a home theater projector online. While this may sound easy enough, it really is not when you think about it. For example:

Buyer: Why are you selling your projector?
Seller: Because I am thinking about buying a new projection system. (Thinking, looking, considering all are terms to make the buyer beware)

Why would this simple question and answer dissuade someone from actively bidding on this projector? Take a moment to look at it more closely. The seller obviously wants to sell the projection unit that they currently own. But why do they want to sell it is the relevant question. The answer states that they are looking, considering, thinking about, or otherwise contemplating the purchase of a new system, this is not to say that they are actively in the process of purchasing a new system. This in turn, should lead the prospective purchaser of the online auction projector to ask themselves, and the seller, a series of other questions. Why are they selling the projector without having found a new one they are sure of?

While there are literally thousands of different combinations of this simple question and answer red flag, the key is the same in all of them. If the seller will not give specifics then buyer beware. It is better to lose a bid on a high quality projection theater system than it is to win even with a low bid for a damaged projection unit. The cost of repairs, while relevant in the long term of projector life is important; it should not have to be a factor when purchasing a new projector, no matter where it is bought.

Things to look for that will indicate it may in fact be a quality cheap projector usually are some type of upgrade on the part of the seller. While they may still be very happy with the unit they are selling, somehow or another they have managed to put together the money for a new home theater projector display and setup. Another factor may very well be that they were uninformed when they made the purchase.

One key to making a new projector purchase is making sure the store where it is purchased has a good return policy. Ambient lighting, (while the most common factor, is not the only one) will cause many projector displays that look great in the store display to function less than ideally in the purchasers home. It may well be that the seller did not ask the right questions when they bought the projector and they cannot return it. This happens more than most people want to admit with any number of products, not just with projection units. Asking the correct questions can make it easier to figure out if the projector will be right for your needs or not.

Ask the seller about the picture quality of the projection unit they are selling. If the seller is specific and gives you an answer saying that it is not what they expected, there could be other mitigating factors that will make this ideal for you to get a great deal on a great projection system for well under one thousand dollars.

Find out what kind of projection screen they are using. If the projection screen is not ideally suited to the home theater projector they purchased, that could be a point in favor of the buyer. Sometimes a person will spend a great deal of money on a projector and use the blank space on the wall to project the multimedia displays. If the projector shuts off or flickers. This could be an indication that the projector is fine (For the moment) but has been set up somewhere that is either too dusty for the projection unit filters to keep up or it has been set up somewhere that there is not sufficient airflow and the projection unit is overheating. Find out specific details about where the projector is. Do not be afraid to ask questions. The worst that can happen is that they will refuse your bid and save you money. Not a bad deal really, and certainly better than ending up with a home projector that will not work at all or that needs substantive repairs.

If you know that the projector is functioning well but the picture quality is not what it should be, there could well be another frequently encountered problem. This is known as the keystone effect. Most projection units come with keystone adjustment features. The concept is to allow the optic lenses to be adjusted horizontally and vertically. While this can be a great benefit in some projectors, some home theater systems will become quickly inundated with the keystone effect. To make a long story short, the screen and the projector have pixels. The pixels are little concave shaped areas where light is projected and displayed. The keystone effect occurs when the pixels on the screen are not correctly aligned with the pixels being projected from the projection unit. This will greatly detract from the viewing pleasure and often causes unpleasant sensations such as headaches to the viewer.

If a buyer is willing (And well informed enough) to ask specific questions they should get specific answers. If the seller refuses to be specific or to discuss details, than do not bid. Ever! The well-informed buyer will never end up with a seriously damaged projector, and just may, if they ask the right questions, end up with a high quality home theater projection system for well under a thousand dollars.

Note: This article may be republish for use in websites as long as the author bio and active hyperlinks are kept intact.

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.

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