Focal-plane shutter and optical device
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United States of America Patent
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Apr 26, 2016
Grant Date -
Aug 20, 2015
app pub date -
Apr 30, 2015
filing date -
Nov 1, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A focal-plane shutter includes: first, second, and third boards each including an opening and arranged in an optical axis direction passing through the openings; a first blade arranged between the first and second boards and capable of opening and closing the openings; a second blade arranged between the second and third boards and capable of opening and closing the openings; first and second arms arranged between the second and third boards, connected to the second blade, made of synthetic resins, and capable of rotating about respective different fulcrums; and a drive member connected to the first arm and driving the first arm.
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Cited Art Landscape
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