3D glasses have several formats, red and green format, left and right format, up and down format, do not know how they are working to make the eyes of the stereo vision?
The first principle about 3D: the human eye is about two, usually to see something, two eyes have a point of difference, it is because of the angle difference to the formation of 3D, while the TV is on a plane, so look at any picture, in addition to the imaginary 3D, feel no 3D effect, but if shot out of the picture is a double screen, the two screen completely simulate human eyes, look at the time that each eye sees only one picture, so the picture can deceive the brain, thought to see is the three-dimensional image, this is the principle of any kind of stereo the way.Then the stereo picture is double screen simulate people's eyes shot or made known, the next step is how to make the left picture that only the left eye to see and do not let the right eye see the right screen just let the right eyes see and don't let the eye to see. It is this three kinds of display mode. (Note: the next format or about format only when shooting or making resource reservation is different, but the principle of double screen is the.3D output mode is not only the edge of the color polarizing and shutter three)1, red and blue red green is called partial color, mainly to filter out other colors through the red blue and green three colors, such as red and blue glasses, output, double picture in different parts of the red and blue ghost. A red lens can filter out the blue, and blue lenses can filter out red, that two eyes see the picture is different, thus forming the 3D. filter but due to incomplete, and see the color resources will be biased, so the effect is very poor. The definition of a long time to watch this 3D has a direct harm to the eyes.In addition to color, the other two (polarizing and shutter) are required for a particular display device
2, 3D is mainly formed by polarizing polarizing film and polarizing glasses, cinema or projection are double projection, each cast a projection screen, the two images overlap, separated by a layer of polarizer in the projector lens, a glass sheet polarizer is called direction, the two lens when the same direction, the screen will go through two polarizers, and vertical direction, is all black, can stop the picture. So the Polaroid two before the projector is vertical, while the two polarizing film, polarizing lens is perpendicular to this, can let you see the left eye a projection is not to look at the right picture, and make the right eye to see another projection screen right and see the left picture, so that it can be formed in the brain of 3D. TV is similar, but he is 1080 of the resolution of the screen is divided into two parts, one is the number of pixels in the left eye See the picture, even pixels for the right eye to see the picture. Therefore, the TV is different polarizing polarizing resolution is halved, can only achieve the SD 540P picture.
3, the shutter is the mainstream display mode. The general liquid crystal is 60HZ, that is a second transformation of the 60 images, and display shutter device refresh is twice as high, the second screen displays 120, double screen display screen each time 60 times, such as the 1/120 3/120 5/120 is displayed in the... The left picture, and other time periods showed a right picture, but the eyes have a delay to the flashing, generally above 24 will be very difficult to detect. So the eyes can only see the ghost without flash. In the alternate display and display device will transmit signal to the shutter glasses. Let it open the left at the moment close the right lens lens, a second 120 times alternately flashing, the same eyes do not feel (Chinese external light source is 50HZ, in the source may feel flashing) and through rapid flashing, also let each eye received their picture, came to the brain and the formation of 3 D.
