Invention Grant
- Patent Title: Focal plane shutter for cameras
- Patent Title (中): 焦平面快门相机
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Application No.: US13690403Application Date: 2012-11-30
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Publication No.: US08550730B2Publication Date: 2013-10-08
- Inventor: Kenta Kawakami , Shigemi Takahashi
- Applicant: Nidec Copal Corporation
- Applicant Address: JP Tokyo
- Assignee: Nidec Copal Corporation
- Current Assignee: Nidec Copal Corporation
- Current Assignee Address: JP Tokyo
- Agency: Wenderoth, Lind & Ponack, L.L.P.
- Priority: JP2011-261678 20111130
- Main IPC: G03B9/08
- IPC: G03B9/08

Abstract:
In a focal plane shutter according to the present invention, a support plate is placed while a plate plane of the support plate is parallel to a shutter base plate, a second blade-driving member is fitted to a shaft erectly provided on the shutter base plate, the second blade-driving member being rotated by the biasing force of a second blade-driving spring, an electromagnet for second blade is fitted to the support plate, the electromagnet attracting and holding an iron piece member fitted to the second blade-driving member, a printed wiring board on which a wiring pattern for supplying electric current to the electromagnet is formed is placed in a hole formed in the support plate, and terminal pins of the electromagnet are soldered to the both ends of a coil.
Public/Granted literature
- US20130136443A1 FOCAL PLANE SHUTTER FOR CAMERAS Public/Granted day:2013-05-30
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