Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
February 4, 2020
Patent Application Number
15525027
Date Filed
November 6, 2015
Patent Primary Examiner
Patent abstract
A troffer luminaire including (i) a light guide luminaire module having an optical extractor, and (ii) a reflector, where the reflector is configured to reflect light output by the optical extractor in a backward angular range toward a target surface in a forward angular range, and where a combination of the optical extractor and the first reflector is configured such that a ratio of maximum luminance to minimum luminance across the first reflector is less than a first predetermined ratio.
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