| 摘要 |
PROBLEM TO BE SOLVED: To provide a stereoscopic projector capable of improving a viewing angle of a projection image and permits the projection of a plurality of stereoscopic images. SOLUTION: By using a projection system of assembling a plurality of inexpensive Fresnel lenses having a proper aperture and focal distance, the color aberration and viewing angle of projection image is improved and the projection of plural stereoscopic projection images to the plural directions is permitted. At the same time, an optical distance of a projection optical system in the conventional apparatus is drastically shortened and a compact volume of the system can be obtained. COPYRIGHT: (C)2005,JPO&NCIPI
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