ANTI-SPECKLE TRANSMISSIVE DIFFUSER SCREEN
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United States of America Patent
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Jun 16, 2016
app pub date -
Jul 11, 2014
filing date -
Jul 15, 2013
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Abstract
The invention relates to a transmissive diffuser screen comprising a transparent support (50), a first face of the support being covered with a first diffusive micro-structure (52) and a second face of the support being covered with an optical focusing structure (54) of which the primary focal point is disposed at a lighting source (36) of the screen and of which the surface is covered with a second diffusive micro-structure (56).
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