ASYMMETRIC TURNING FILM WITH TOP-HAT LIGHT OUTPUT DISTRIBUTIONS
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United States of America Patent
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Issued Date -
Nov 7, 2019
app pub date -
Jan 3, 2018
filing date -
Jan 4, 2017
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Abstract
An optical system including a light guide and a turning film that includes a first major surface, where the first major surface is substantially smooth and a second major surface including a plurality of asymmetric microstructures each respective asymmetric microstructure including a first side, where the first side is substantially planar, and a second side including a first surface segment defining a substantially planar surface and a second surface segment defining a non-planar surface.
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