| 摘要 |
PURPOSE: A three dimensional stereoscopic image projection apparatus is provided to simplify configuration and obtain a perfect observation angle near to 180 degrees, while allowing a plurality of observers to simultaneously observe the expanded three dimensional image. CONSTITUTION: An apparatus comprises a pair of light sources(122,124) for radiating, at a predetermined angle, light to an object; a lens group constituted by lenses(132,134) for enlarging the size of the light reflected from the object; a cross-shaped double aperture(140) having a pair of cross-shaped slits(142,144) for converting the light enlarged by the lens group, into two images of left visual image and right visual image; and a diffusion screen(150) where the cross-shaped light of left vision and right vision converted by the cross-shaped slit of the cross-shaped double aperture, is projected as a three-dimensional image. |
