发明名称 |
EINAEUGIGE SPIEGELREFLEXKAMERA |
摘要 |
A light meter for a SLR camera implements both initial exposure time display and automatic exposure time control using a single light sensing element 8. The reflex mirror 3is formed as a beam splitter or half-mirror. When lowered, some of the viewfinder light passes through the mirror and is reflected onto the sensing face of the element 8 by the shutter curtains 9 or 10 to enable the time display function. When the mirror is raised and the lens diaphragm 2 reduced, the light is again reflected from the curtains and/or film surface 11 onto the sensing element face to enable the time control function. |
申请公布号 |
DE2655628(A1) |
申请公布日期 |
1977.06.23 |
申请号 |
DE19762655628 |
申请日期 |
1976.12.08 |
申请人 |
ASAHI KOGAKU KOGYO K.K. |
发明人 |
UNO,NAOYUKI;MIYATA,KATSUHIKO |
分类号 |
G03B7/099;G03B7/0997;G03B19/12 |
主分类号 |
G03B7/099 |
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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