Projection TV comes in two types:
1. Rear Projection
Rear-projection televisions are housed in a cabinet with a mirror inside. What we are seeing is the reflected image from a small projector built into the base of the television, reflecting off the mirror onto the back of the screen.
The original rear-projection televisions used three small picture tubes that reflected off the mirror onto the screen. These TVs required regular adjustment in order to keep the three images properly aligned and "converged."
With today's new, computer-based technologies, a single light source generates a sharper, brighter image that requires considerably less maintenance and adjustment. This is an excellent, inexpensive way to get a large image that works well in all ambient light situations.
2. Front Projection
Front projection is a two-piece television technology in which the projector is mounted on either the ceiling or the floor, and the image is projected across the room onto a large screen. The screen can either be fixed to the wall or dropped down from the ceiling when the projector is activated. This type of television gives you a
true theatrical presentation.
In reality, the sky is the limit on the creativity of the designs you can come up with, depending on your unique, individual situation and your design considerations.
You will have to control the light in a room with a front projection television. Any reflected light will compete with the image being broadcast by the projector, and will tend to wash it out. Opaque blinds or a dedicated theater room are generally recommended.
Because front projection televisions have become smaller and lighter, new portable models also are being made that are ideal for business conferences and school presentations (keeping in mind the necessity to control the lighting in the room).
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