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Question:

3D glasses what principle?

Cinema watching 3D movies, you must wear 3D glasses, 3D glasses what principle?

Answer:

Upstairs answer is not complete, I'll add. The principle of 3D film as the top two said, but with the progress of science and technology, 3D glasses have developed excellent filter (red, blue, red, green, etc.), polarization, shutter type. It is based on the characteristics of the propagation of light and the recognition of human eyes. In the future there will be naked eye 3D, that is, you can put aside the glasses to experience the effect of 3D.
The normal person's eyes are about 5 cm apart. Two eyes, apart from looking straight ahead, look at anything, and they have different angles. Although the image gap is very small, but the image through the eye to the brain, the brain will use this tiny gap, feel far and near depth, resulting in a sense of three-dimensional.The three D film is a film made from the same scene in two different directions from the two lenses. At the time of the projection, the two sets of films were synchronized with the two projectors to make the slightly different images of the two images overlap on the screen. At this time, if you see with your eyes directly, you can see that the picture is a. When to wear special glasses (3D is actually a polarizing glasses), the left eye can only see the left image and the right eye can only see the like, aggregation through the eyes of the left and right like folds in the fundus and visual effect, generated by a three-dimensional brain. This is the principle of three-dimensional film.
Is the real effect of the eyes, but also the eyes of the illusion, so that the eyes in different places overlap, can not determine the true distance of objects!
Upstairs answer is not complete, I'll add. The principle of 3D film as the top two said, but with the progress of science and technology, 3D glasses have developed excellent filter (red, blue, red, green, etc.), polarization, shutter type. It is based on the characteristics of the propagation of light and the recognition of human eyes. In the future there will be naked eye 3D, that is, you can put aside the glasses to experience the effect of 3D.

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