Invention Application
US20160011491A1 FOCAL-PLANE SHUTTER, OPTICAL DEVICE, AND METHOD FOR ADJUSTING CURRENT FOR FOCAL-PLANE SHUTTER
有权
FOCAL-PLANE SHUTTER,OPTICAL DEVICE,AND METHOD FOR MODETINGS CURRENT FOR FOCAL-PLANE SHUTTER
- Patent Title: FOCAL-PLANE SHUTTER, OPTICAL DEVICE, AND METHOD FOR ADJUSTING CURRENT FOR FOCAL-PLANE SHUTTER
- Patent Title (中): FOCAL-PLANE SHUTTER,OPTICAL DEVICE,AND METHOD FOR MODETINGS CURRENT FOR FOCAL-PLANE SHUTTER
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Application No.: US14862420Application Date: 2015-09-23
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Publication No.: US20160011491A1Publication Date: 2016-01-14
- Inventor: Seiichi OISHI , Minori MURATA , Shoichi TOKURA , Hiroshi TAKAHASHI
- Applicant: SEIKO PRECISION INC.
- Applicant Address: JP Narashino-shi
- Assignee: SEIKO PRECISION INC.
- Current Assignee: SEIKO PRECISION INC.
- Current Assignee Address: JP Narashino-shi
- Priority: JP2013-133164 20130625
- Main IPC: G03B9/40
- IPC: G03B9/40

Abstract:
A focal-plane shutter includes: a mechanical portion including: a board including an opening; and a leading blade and a trailing blade capable of opening and closing the opening; and a leading blade actuator and a trailing blade actuator respectively driving the leading blade and the trailing blade, and respectively including a leading blade coil and a trailing blade coil, wherein a current value flowing through at least one of the leading blade coil and the trailing blade coil is adjusted such that one of variations in a leading blade run-up period and a trailing blade run-up period depending on a temperature change corresponds to the other one.
Public/Granted literature
- US09304374B2 Focal-plane shutter, optical device, and method for adjusting current for focal-plane shutter Public/Granted day:2016-04-05
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