发明名称 |
Lens drive for auto focus camera |
摘要 |
A lens drive mechanism for an auto focus camera transmits a substantially uniform driving force to rotate a lens mechanism at a uniform rate from a drive member interconnecting a pair of shutter blade elements regardless of variations in the output of the camera battery supply which operate to impart variations in the speed at which the shutter blade connecting member is driven.
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申请公布号 |
US4509840(A) |
申请公布日期 |
1985.04.09 |
申请号 |
US19840581539 |
申请日期 |
1984.02.21 |
申请人 |
POLAROID CORPORATION |
发明人 |
JOHNSON, BRUCE K.;WHITESIDE, GEORGE D. |
分类号 |
G03B3/10;(IPC1-7):G03B7/08 |
主分类号 |
G03B3/10 |
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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