Lighting device, lens, system and method
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United States of America Patent
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Dec 26, 2017
Grant Date -
Aug 6, 2015
app pub date -
Sep 13, 2013
filing date -
Sep 20, 2012
priority date (Note) -
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Abstract
A lighting device comprising at least four optical devices. Each optical device has an associated light source and comprises a first surface with a plurality of micro sized facets. Each facet has a respective orientation and said plurality of facets has an optical axis which extends parallel to the normal vector to an average orientation of all said respective orientations. The optical devices are divided over at least two sets of optical devices which are designed to mutually issue a different pattern during operation as the optical devices of different sets are arranged in a mutually alternating manner.
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