Invention Grant
- Patent Title: Focal-plane shutter and optical device
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Application No.: US15088589Application Date: 2016-04-01
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Publication No.: US09606421B2Publication Date: 2017-03-28
- Inventor: Seiichi Oishi , Hiroshi Takahashi , Shoichi Tokura
- Applicant: SEIKO PRECISION INC.
- Applicant Address: JP Narashino-shi
- Assignee: SEIKO PRECISION INC.
- Current Assignee: SEIKO PRECISION INC.
- Current Assignee Address: JP Narashino-shi
- Agency: Kratz, Quintos & Hanson, LLP
- Priority: JP2014-000653 20140106
- Main IPC: G03B9/40
- IPC: G03B9/40 ; G03B9/42

Abstract:
A focal-plane shutter includes: a board including an opening; a shutter opening and closing the opening; a drive lever provided with a drive pin and swinging; a drive arm provided with an engagement hole engaged with the drive pin, swinging about a center same as a swing center of the drive lever, driving the shutter, and made of a synthetic resin; and a restriction portion defining a swinging range of the drive lever.
Public/Granted literature
- US20160216593A1 FOCAL-PLANE SHUTTER AND OPTICAL DEVICE Public/Granted day:2016-07-28
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