发明名称 |
Stereoscopic projecting apparatus |
摘要 |
A stereoscopic projecting apparatus has a polyhedral prism and two types of polarizing filters which are arranged at the incident (or emerging) planes of the prism and which have orthogonal deflecting directions. Left and right-eye pictures are alternately formed on the consecutive frames of a cinefilm. The cinefilm is driven in such a way as to cross the projection region of light emitted from a lamp. An optical image transmitted from the cinefilm is projected onto a screen by the polyhedral prism, through a relay lens, a projection lens or the like. The left and right-eye images are deflected in directions 90 DEG apart from each other, by the polarizing filters at the respective incident or emerging planes of the prism. A viewer can stereoscopically observe the image superimposed on the screen, using polarized viewing glasses having polarized lenses deflected in the deflecting directions of the images.
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申请公布号 |
US4544247(A) |
申请公布日期 |
1985.10.01 |
申请号 |
US19830563987 |
申请日期 |
1983.12.21 |
申请人 |
PHOTRON LTD.;TOKYO SHIBAURA DENKI KABUSHIKI KAISHA |
发明人 |
OHNO, YOSHIO;KOYAMA, KATSUHIKO;NISHIO, KOHSAKU |
分类号 |
G03B35/16;G03B35/18;G03B35/26;G03B41/08;(IPC1-7):G03B35/02;G03B41/06 |
主分类号 |
G03B35/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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