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WHAT IS A PROJECTOR
A Projector is a device designed to take an image from a video source and project it as full as possible onto a screen or other surface. Projectors are used in a variety of different ways; they are enjoyed by home theater enthusiasts due to their ability to project movies and television programs onto a screen much larger than even the biggest TV available, and used in the corporate setting to project information onto screens large enough for rooms filled with people to see. Projectors come in a variety of different shapes and sizes and are produced by many different companies.
FUNCTIONS OF A PROJECTOR
A Projector is designed to receive a video signal from some external device-usually a DVD player, a Blu-Ray player, or a computer-and project that signal onto a screen. It does this by displaying the image represented in the video signal onto a small screen inside the projector itself, which is then projected onto a screen using a bright light and a lens. The lens is a piece of glass shaped in a very specific way designed to take the small image and turn it into a dramatically larger one. Projectors allow users to alter a variety of image features, including brightness, sharpness and color settings, in the same way a standard television would.
TYPES OF PROJECTORS
1. LCD PROJECTORS
LCD (short for "liquid crystal display") projectors use the same techniques LCD televisions do to project their image. The projector reflects the video signal off of thousands of tiny mirrors inside the projector itself, allowing for improved clarity and resolution when the image is projected onto a screen. LCD projectors are the easiest kind to make, which in turn makes them the most affordable kind to buy.
2. DLP PROJECTORS
DLP (short for "Digital Light Projection") projectors are coveted for their amazing image quality. They are much more expensive to produce than LCD projectors, which makes them much more expensive to buy. They employ tiny devices called "micromirrors" to display their image which leads to a perfect digitally projected image when projected onto a screen. Unlike LCD projectors, a DLP projector can display each primary color simultaneously, which leads to incredibly faithful color levels when projecting an image. Many movie theaters have started to use DLP projectors in their projection booths.
WHAT IS A PROJECTOR USED FOR?
Projectors are used in a variety of ways in a variety of different environments. In the corporate world projectors are ideal for business presentations as they allow you to display work from a computer on a screen big enough for potentially hundreds of people to see. They are also employed in schools for the same reasons. Home theater enthusiasts also use them as a good projector will display an image that looks better and more accurately represents the source material than most TVs on the market ever would.
Projectors offer a much larger, and sometimes even clearer, picture than the latest high-definition televisions. Their portability makes them ideal for an office space where one projector is needed for several different presentation rooms.
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