- 专利标题: Focal-plane shutter and optical apparatus
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申请号: US15227478申请日: 2016-08-03
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公开(公告)号: US09671678B2公开(公告)日: 2017-06-06
- 发明人: Shoichi Tokura , Seiichi Oishi
- 申请人: SEIKO Precision Inc.
- 申请人地址: JP Matsudo-Shi
- 专利权人: SEIKO PRECISION INC.
- 当前专利权人: SEIKO PRECISION INC.
- 当前专利权人地址: JP Matsudo-Shi
- 代理机构: Brinks Gilson & Lione
- 优先权: JP2015-163730 20150821
- 主分类号: G03B9/40
- IPC分类号: G03B9/40 ; G02B27/00
摘要:
A focal-plane shutter capable of suppressing production of foreign matter is provided. The focal-plane shutter includes a base plate, rear curtain drive arms, a blade that is driven by the rear curtain drive arms, and an elastically deformable cushioning member that comes into contact with the blade that moves from a retracted position to an unfolded position. The blade extends in a first direction. The rear curtain drive arms are swingable around the centers of swing motion provided on one side of the blade in the first direction. The cushioning member has a contact section that comes into contact with a side edge of the blade, a holding section that is arranged on the side opposite the blade with the contact section therebetween, and a connecting section that connects the contact section and the holding section to each other. The connecting section inclines with respect to a second direction perpendicular to the first direction and extends toward the centers of swing motion.
公开/授权文献
- US20170052428A1 FOCAL-PLANE SHUTTER AND OPTICAL APPARATUS 公开/授权日:2017-02-23
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