How CrystalEyes Works
How CrystalEyes Works

How CrystalEyes Works

Stereo-vision works by displaying left and right eye views "simultaneously". In reality, the left eye view is shown while the eyewear shutters block the right eye. Then the right image is shown while the left eye is blocked. At 120 Hz, each eye will see the appropriate image 60 times per second. Though the images aren't really shown at the same time, the switching is so rapid, that left and right views appear to be simultaneous. This emulates how natural vision works thus creating depth perception.

Creating this effect requires an image that contains both left and right eye views. The video board is set to a refresh rate of 60 Hz. However, CrystalEyes(R) doubles the sync pulse to 120 Hz. This means that half the image is stretched out and drawn to the full screen, then the CrystalEyes emitter sends another sync pulse so that the monitor returns to the top to draw the other half, all in one cycle. The net effect is that within one cycle both left and right images are drawn.

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