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Technologies of formation of a stereo image

Which to choose?

There is no definitive answer. Different TVs may require different points.
One thing is obvious, the worst are disposable.

Anaglyphic technology

Anaglyph glasses have color filters. That is, the right eye is blue, the left one is red.

Anaglyph glasses have color filters. Plus anaglyph is that such a video can be watched on absolutely any screen. A significant drawback is the loss of the color of the image, because a part of the color spectrum is used to obtain the volume effect.

Anaglyph Glasses

Polarization technology

Polarizing glasses work on the principle of oscillation of light waves.

Another technology in which glasses are conventional filters is a polarization filter. As obvious from the title, the separation of frames for the left and right eyes is due to the polarization effect (space-oriented vibration of light waves). In cinemas, a polarization picture is obtained with the help of two projectors. In home technology, and even more so on the usual flat display, this effect is rather difficult to obtain, therefore, such technology is not used in televisions.

Polarizing glasses

Gate technology

The third way to get a three-dimensional picture, and if to speak specifically - to solve the problem of separate display of frames for the left and right eyes, is quite simple. The shutter technology or technology with active glasses works as follows: "left" and "right" frames are displayed alternately on the TV screen. Active glasses, synchronizing with the IR connection with the TV, alternately close one or the other eye. Since the frame rate and, correspondingly, the rate of closing the eyes is extremely high, there is a feeling that we see a three-dimensional image a little less bright than without glasses.

Active shutter glasses require synchronization with the device.

Active shutter glasses
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