发明名称 |
Reflex camera light detecting arrangement |
摘要 |
A light detecting system for a single lens reflex camera in which an image of the focusing screen is reflected to the normally unused surface of the pentaprism from a partially reflective surface in the viewfinder system. The reflective surface in one form may be glass-to-air interfaces on the viewfinder axis in the eyepiece, but also may be a thin partially reflecting coating.
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申请公布号 |
US4064516(A) |
申请公布日期 |
1977.12.20 |
申请号 |
US19760665557 |
申请日期 |
1976.03.10 |
申请人 |
OPTIGON RESEARCH & DEVELOPMENT CORPORATION |
发明人 |
MCLAUGHLIN, THOMAS D.;ALTMAN, RICHARD M. |
分类号 |
G03B7/099;G03B13/02;G03B19/12;(IPC1-7):G03B13/02 |
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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