发明名称 |
Indicator in a finder |
摘要 |
In the disclosed single lens reflex camera a focusing screen presents exposure information in addition to an image of the scene to be photographed. The image area of the screen is surrounded by walls protruding upward from and integral with the screen to prevent dust from entering the image area and to space the viewfinder lens from the screen in a dust tight manner along all or most of the periphery. Also disclosed is a pointer in a second area adjacent to one wall outside the image area which indicates information on a scale or a sliding plate.
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申请公布号 |
US4106038(A) |
申请公布日期 |
1978.08.08 |
申请号 |
US19760688964 |
申请日期 |
1976.05.24 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
KAWAKITA, YUKIMASA;OKUNO, YOUICHI |
分类号 |
G03B13/24;G03B17/20;G03B19/12;(IPC1-7):G03B19/12 |
主分类号 |
G03B13/24 |
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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