Like most people, you may be filled with a burning curiosity to understand what makes a rear projection TV perform its magic. Well, it’s largely done with smoke and mirrors. (Just kidding - if there is smoke coming out of your rear projection television you have a serious problem!)
First, a video picture is projected via a projectors lamp inside the television, then a system of mirrors and lenses redirect the image onto the inside surface of a translucent screen.
When this technology was first developed, CRTs (cathode-ray tubes - responsible for making old fashioned television sets so bulky) were used, and it was a success. The only problem here was that the tube made the chassis extremely heavy and, typically, a floor-standing cabinet was required to accommodate it.
Eventually,In the end, as screens grew bigger, and the industry began to adopt the new, wider 16:9 aspect ratio (the ratio of height to width), those old CRT boxes were gradually replaced by new models which deliver high-quality performance in light, compact enclosures.
Rear projection TVs have built-in high-definition capability nowadays. This is an extremely important point - they are equipped to handle everything high-definition broadcasting and discs can throw at them. And make no mistake - High-Definition TV will deliver wide-screen images in much better clarity and detail than we are used to from traditional televions. As well as tuners for cable and analog TV - not to mention being able to receive unencrypted digital cable signals without requiring a set-top box - high definition tuners are included in all modern RPTVs, which makes them capable of taking full advantage of all the television innovations which will be coming soon.
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