Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Emil Radkov0
Willem Smitt0
Aurelien J. F. David0
Michael R. Krames0
Date of Patent
June 18, 2019
0Patent Application Number
158781100
Date Filed
January 23, 2018
0Patent Citations Received
Patent Primary Examiner
Patent abstract
Methods and apparatus for providing circadian-friendly LED light sources are disclosed. A light source is formed to include a first LED emission (e.g., one or more LEDs emitting a first spectrum) and a second LED emission (e.g., one or more LEDs emitting a second spectrum) wherein the first and second LED emissions are combined in a first ratio and in a second ratio such that while changing from the first ratio to the second ratio the relative circadian stimulation is varied while maintaining a color rendering index above 80.
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