发明名称 |
Device for displaying data in camera viewfinder |
摘要 |
A camera viewfinder which includes a device for displaying data, such as shutter speed and aperture value. A liquid crystal display and associated illuminating systems are provided for the display device. The illuminating system includes an illuminating lamp and a diffusion plate for diffusing light from the lamp. The diffusion plate has a groove or hole at its center for accommodating the lamp and a flat surface facing the liquid crystal display. The surface of the diffusion plate opposite the flat surface has sloping sides which slope downward from the center of the diffusion plate.
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申请公布号 |
US4560264(A) |
申请公布日期 |
1985.12.24 |
申请号 |
US19840575375 |
申请日期 |
1984.01.30 |
申请人 |
ASAHI KOGAKU KOGYO KABUSHIKI KAISHA |
发明人 |
KITAZAWA, TOSHIYUKI;MORISAWA, TAHEI;TAKAHASHI, NORIMICHI |
分类号 |
G02B1/04;G02B5/02;G02F1/1335;G02F1/13357;G03B13/02;G03B17/20;(IPC1-7):G03B13/02 |
主分类号 |
G02B1/04 |
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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