发明名称 |
Focus correcting device for use in a rangefinder camera |
摘要 |
A focus correcting device for use in a rangefinder camera is operable to correct for a displacement of the focal point of an imaging optics which results from a change in the diaphragm aperture of an apertured diaphragm. An interlocking mechanism operationally couples a rangefinder with a focus adjusting mechanism of the imaging optics. Means is disposed in the interlocking mechanism or the focus adjusting mechanism to correct for a displacement of the focal point as the particular diaphragm aperture is established.
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申请公布号 |
US4303323(A) |
申请公布日期 |
1981.12.01 |
申请号 |
US19800158924 |
申请日期 |
1980.06.12 |
申请人 |
OLYMPUS OPTICAL COMPANY LTD. |
发明人 |
IMAI, TOSHIHIRO;YAMADA, TOYOTAKA |
分类号 |
G03B13/36;G02B7/02;G02B7/28;G03B13/20;(IPC1-7):G03B13/20 |
主分类号 |
G03B13/36 |
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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