发明名称 |
Lens barrel structure for waterproof camera |
摘要 |
A lens barrel for a waterproof or dustproof camera which can assure maintenance of a reliable liquid-tight or airtight condition between a movable lens barrel member and a fixed lens barrel member with a structure of a comparatively small size. The lens barrel comprises a fixed lens barrel member provided on a camera body, a movable lens barrel member mounted for movement on the fixed member between a position advanced outwardly from the camera body and another position retracted in the camera body, and a bellows member secured at an end thereof to an inner periphery of a rear portion of the movable member and at the other thereof to an inner periphery of a rear portion of the fixed member. The bellows member is folded back at an intermediate portion thereof between the movable member and the fixed member in such a manner as to surround a rear end of the movable member, and the folded back portion moves as the movable member is moved between the retracted position and the advanced position.
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申请公布号 |
US5056903(A) |
申请公布日期 |
1991.10.15 |
申请号 |
US19890330134 |
申请日期 |
1989.03.29 |
申请人 |
MINOLTA CAMERA KABUSHIKI KAISHA |
发明人 |
NAKAMURA, IKUSHI;NAGATA, SHIGERU |
分类号 |
G02B7/02;G03B17/08 |
主分类号 |
G02B7/02 |
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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