发明名称 |
Varifocal camera |
摘要 |
A varifocal camera, comprising a photographic lens barrel having a photographic lens able to change the focal distance and adapted to move rearwardly when the photographic lens is transferred to the first focal distance side and move forwardly when the lens is transferred to the second focal distance side, a photographic lens barrier movable between the opening position at which the photographic lens is exposed and the closing position at which photographic lens is screened, and a finder barrier movable between the opening position at which the finder lens is exposed and the closing position at which the finder lens is screened.
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申请公布号 |
US4847648(A) |
申请公布日期 |
1989.07.11 |
申请号 |
US19880155501 |
申请日期 |
1988.02.12 |
申请人 |
RICOH COMPANY, LTD. |
发明人 |
YAMAGUCHI, KUNIHISA;NISHI, KOHICHI;TSURUKAWA, IKUYA;SAWABE, KOSAKU |
分类号 |
G03B17/12;G02B7/10;G03B3/10;G03B11/04;G03B13/00;G03B13/02;G03B17/04 |
主分类号 |
G03B17/12 |
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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