ROTATED MICRO-OPTICAL STRUCTURES FOR BANDING SUPPRESSION FROM POINT LIGHT SOURCES
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United States of America Patent
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Issued Date -
Jan 29, 2015
app pub date -
Aug 24, 2011
filing date -
Aug 24, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An apparatus for use on an edge-injected, total internal reflection (TIR) waveguide. The apparatus comprises a substrate and a plurality of microstructures provided on the substrate. Each microstructure comprises at least two approximately planar surfaces for extracting light from the TIR waveguide. The plurality of microstructures are pseudo-randomly oriented on the substrate. The apparatus may used in a lighting system (e.g., a backlight for a display).
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