FOCAL PLANE SHUTTER AND OPTICAL DEVICE
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United States of America Patent
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N/A
Issued Date -
Jun 2, 2011
app pub date -
Nov 9, 2010
filing date -
Nov 27, 2009
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A focal plane shutter includes: a board including an opening; a blade closing and opening the opening; a driving lever holding a movable iron piece, swingably supported, and driving the blade; a self-holding solenoid being able to adsorb the movable iron piece in a non-energized state, and an adsorptive force in an energized state being smaller than an adsorptive force in the non-energized state; and a biasing member biasing the driving lever to move away from the self-holding solenoid. The driving lever includes an engagement portion engaging the movable iron piece and made of a non-magnetic material.
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