发明名称 |
Light metering device for camera |
摘要 |
A light metering device for single lens reflex camera having photoelectric transducer elements arranged in the optical path of a finder thereof. The photoelectric transducer elements are arranged ahead of a focusing screen as viewed from the direction of finder light, and an area corresponding to a clear portion of the focusing screen is made either to have a photoelectric transducer structure of narrower width than in the environmental area, or to be light-metered by another or separate light metering optical system.
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申请公布号 |
US4739360(A) |
申请公布日期 |
1988.04.19 |
申请号 |
US19860855173 |
申请日期 |
1986.04.22 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
OHMURA, HIROSHI;TSUNEKAWA, TOKUICHI |
分类号 |
G01J1/04;G03B7/099;(IPC1-7):G03B7/099 |
主分类号 |
G01J1/04 |
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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