Electromagnetic shutter
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United States of America Patent
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Feb 18, 2014
Grant Date -
Dec 20, 2012
app pub date -
Jun 15, 2012
filing date -
Jun 15, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A shutter includes a driver ring, a plurality of shutter blades coupled to the drive ring such that movement of the drive ring transitions the plurality of shutter blades between an open position exposing a central aperture of the shutter, and a closed position blocking the central aperture, and a first stop and a second stop movable relative to the first stop. At least one of the first and second stops limits travel of the shutter blades.
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