| 发明名称 |
Inverted galilean type variable magnification zoom finder |
| 摘要 |
An inverted Galilean type variable magnification zoom finder has a field frame, which can be moved in accordance with a change in magnification of a finder optical system. The field frame may be moved integral with, or independently of, a lens or a lens unit.
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| 申请公布号 |
US5953548(A) |
申请公布日期 |
1999.09.14 |
| 申请号 |
US19970864966 |
申请日期 |
1997.05.29 |
| 申请人 |
OLMYPUS OPTICAL CO., LTD. |
发明人 |
MORI, AKIRA |
| 分类号 |
G03B13/12;G02B15/16;G02B23/14;(IPC1-7):G03B13/10 |
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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