发明名称 |
Real image type finder system that changes an aspect ratio of a visual field by varying magnification |
摘要 |
A real image type finder system comprising an objective lens system, a relay lens system and a field stop arranged at the location at which an image is to be formed by said objective lens system: and adapted to be changed into a panorama finder system by replacing the relay lens system with another relay lens system having a magnification different from that of said relay lens system and exchanging the field stop with another field stop having an aperture of a shape having an aspect ratio different from that of the aperture shape of said field stop.
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申请公布号 |
US5321457(A) |
申请公布日期 |
1994.06.14 |
申请号 |
US19930115797 |
申请日期 |
1993.09.03 |
申请人 |
OLYMPUS OPTICAL CO., LTD. |
发明人 |
IMAIZUMI, MASAKI |
分类号 |
G03B13/12;G02B15/04;G02B15/14;G02B23/14;(IPC1-7):G02B15/00;G03B13/10;G03B37/00 |
主分类号 |
G03B13/12 |
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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