3-dimensional personal computer system

The system is composed of a personal computer, a video display, video cassette recorder (VCR), two video cameras, a 3-D scope with TN-type, high-speed, liquid-crystal shutter, and 3-D adapter used for driving the 3-D scope. To achieve stereoscopic imaging, the system uses time-sharing alternate imaging based on binocular parallax. The time-sharing period is 1/60 second, which is a single vertical period of the NTSC TV standard. The system alternately presents images for the left and right eyes on the screen at a 1/60-second period while synchronously driving the 3-D scope in which liquid-crystal shutters alternately shut up the left and right eyes of the viewer. Thus, the viewer's left eye always sees only the image for the left eye and the right eye always sees only that for the right eye.<
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