| 发明名称 |
CLOSE-UP LENS ASSEMBLY INCORPORATING A PHOTO-RANGING SYSTEM |
| 摘要 |
<p>A plurality of fixed focus exposure lenses are mounted in a turret for manual selection of a desired focus. Each exposure lens in the turret is combined with a pair of ranging lenses for movement therewith which direct light beams to converge at the sharpest subject focus distance of the exposure lens.</p> |
| 申请公布号 |
CA2138908(C) |
申请公布日期 |
1999.01.26 |
| 申请号 |
CA19942138908 |
申请日期 |
1994.12.22 |
| 申请人 |
|
发明人 |
CLARK, PETER P.;SORLI, DUNCAN C. |
| 分类号 |
G03B7/16;G02B7/16;G02B7/28;G03B13/36;G03B15/05;G03B17/14;G03B19/07;(IPC1-7):G03B19/02;G03B13/22 |
主分类号 |
G03B7/16 |
| 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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