It's just a fresnel lens that you place inside a box and attach to a display device. Just for kicks, I bought one of these off Ebay a couple of years ago for about $8 and it was worthless.
|Originally posted by amrod|
my friend bought one and we tried to build it (from ebay) and the TV had to be like 1' away from the wall in a dark room and it was super fuzzy, it was a good waste of a afternoon. The TV also has to be upside down and brightness turned up to the max