Embedded diffuser structure
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United States of America Patent
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Sep 20, 2016
Grant Date -
Jan 14, 2016
app pub date -
Mar 7, 2014
filing date -
Mar 7, 2013
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Abstract
An optical device comprises an optical diffuser structure embedded between media of substantially the same optical refractive index. The structure comprises a partially reflective optical coating at the interface between the two media. The partially reflective optical coating comprises a relief profile such that, in use, the optical diffuser structure diffuses light in reflection from the partially reflective optical coating and delivers substantially no optical deflection in transmission.
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