Method and device for protecting objects from degradation by light with suspended particle device light valves
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United States of America Patent
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Aug 16, 2016
Grant Date -
Oct 30, 2014
app pub date -
Apr 29, 2014
filing date -
Apr 30, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A display device comprising a Suspended Particle Device film or other material for controlling the amount of illumination transmitted to an object from one or more light sources to protect the object from degradation by light is described. The display is capable of being dark when the object is not being viewed and being highly transmissive when the object is to be viewed. If desired, the display device may be controlled so as to provide a substantially constant amount of illumination when the object is viewed or intended to be viewed. A method of protecting an object using the display device is also provided.
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