Analysis of 4D cinema why use 3D glasses
Finally, a liquid crystal glasses only temporarily on the computer in the use of glasses to a high frequency of the left and right lenses are black, the picture with the glasses left or right frequency synchronous display screen, allowing the eye to see a different picture, but the drawback is obvious, the picture is kept flashing, so this flicker frequency is very high (more than 120HZ) can not feel the flicker, but now the LCD frequency is only 60, the display can have to buy special effect. Also the stereo effect temporarily only part of the game, the movie is to find such sources
The principle of all three-dimensional glasses are at first glance, so that the left and right eye to see a different picture, the use of poor vision in the brain to create three-dimensional images. Are different for various types of glasses and the corresponding source playback device:Red and blue only cost a few cents glasses and ordinary playback device can, the movie is two a partial red a bluish overlapping picture, because red blue are complementary colors, the red lenses look will filter out the blue screen, the same blue lens will filter out red screen, so as to realize a different picture about eye stereoscopic effect, the cost is very low but relatively poor effect, especially in the color does not reflect the true colors of things
The relatively high cost of multi polarized 3D glasses, is a pair of left and right eye polarizing glasses angle different, cost about 20 or so, play requires two complete synchronization and projector, projector with polarizing filters, two polarizing filters with perspective glasses left and right eye respectively. The light polarizing characteristic is consistent to the angle through different angles, and the light will be filtered out, two polarizing projection equipment from different angles with glasses to achieve around the eyes to see a different image to achieve the stereo effect, recent movies are basically in this way, there is no color than red and blue the problem, the effect will be better, but limited to the cost of the equipment is too high, the home is very difficult to achieve
