Low-speckle projection screen
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United States of America Patent
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Apr 1, 2014
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N/A
app pub date -
Apr 19, 2013
filing date -
Apr 19, 2013
priority date (Note) -
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Abstract
A projection screen that reduces speckle by separating reflective flakes by at least 100 micrometers. The reflective flakes are held in a binder material that is coated on a backing layer. In a laser projection system, the separation distance between reflective flakes may be at least twice the coherence length of the laser light.
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