发明授权
- 专利标题: Video projecting apparatus
- 专利标题(中): 视频投影仪
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申请号: US368098申请日: 1982-04-14
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公开(公告)号: US4479144A公开(公告)日: 1984-10-23
- 发明人: Shigeru Yamazaki , Yoshiaki Takano
- 申请人: Shigeru Yamazaki , Yoshiaki Takano
- 申请人地址: JPX Tokyo
- 专利权人: Sony Corporation
- 当前专利权人: Sony Corporation
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX56-83646 19810501
- 主分类号: H04N5/74
- IPC分类号: H04N5/74 ; H04N5/64
摘要:
A video projecting apparatus comprises a housing-like chassis which encases projecting lenses and cathode-ray tubes and is provided with a front portion having a movable reflecting mirror. With this video projecting apparatus, the reflecting mirror can be moved to an extended position for projection onto a screen and a contracted position in a front portion of the chassis by a driving mechanism attached to the reflecting mirror.
公开/授权文献
- US5505690A Speculum for dilating a body cavity 公开/授权日:1996-04-09