Shutter for an infrared camera
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United States of America Patent
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Oct 24, 2017
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N/A
app pub date -
Aug 4, 2015
filing date -
Aug 5, 2014
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Abstract
A shutter for an optical system, such as a small infrared camera, for alternately blocking and exposing an optical sensor to light includes an electrically conductive coil, having a center long axis, a magnet element rotatably mounted within the coil with an axis of rotation perpendicular to the center long axis of the coil, a shutter flag element connected to the magnet element, and a shutter base element supporting the shutter flag, magnet, and coil. Energizing the coil in a first manner causes the rotatable magnet to rotate from a first position to a second position and energizing the coil in a second manner returns the magnet to the first position, causing the flag to alternately block and expose the optical sensor.
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