| 摘要 |
PURPOSE:To project a stereoscopic image by one projection film by providing a transparent body which changes in angle of polarization by 90 deg. between the film and lenses, and changing the angle of polarization of the transparent body every time the projection film is fed by one frame. CONSTITUTION:The projection film 10 on which right-eye images R and left-eye images L are printed alternately is run to project the images R and L on a polygon rotary prism 18 alternately. Respective prism surfaces 18b of the polygon rotary prism synchronize with frames of the projection film 10, so the images R and L are incident to the transparent body, and the voltage applied to TN liquid crystal is turned on or off every time a short-size slit is detected by a surface detector 21b to project right-eye images R and left-eye images L having a 90 deg. difference in angle of polarization on a screen 5. Therefore, a motion picture is seen stereoscopically through observation spectacles 7 having a right-eye and a left-eye polarizing plate 6a and 6b. |
