Switchable bioactive lighting

Abstract

The present disclosure provides lighting systems, which may be semiconductor light emitting devices, with two or more of blue, red and/or LRNE, short-blue-pumped cyan, long-blue-pumped cyan, yellow, and violet channels. The lighting systems can have a plurality of operational modes that provide different biological effects while having good color rendering capability. The yellow and violet channels can include violet LEDs and be used in operational modes that provide white light with lower EML values relative to operational modes using three or more of the blue, red, short-blue-pumped cyan, and long-blue-pumped cyan color channels.

What is claimed is: 
     
         1 . A system comprising:
 a plurality of semiconductor light emitting device outputting a first circadian stimulating energy (CSE);   at least one external device receiving feedback comprising information associated with at least one of the semiconductor light emitting devices and the first CSE;   a master device in communication with the plurality of semiconductor light emitting devices, the master device configured to adjust a parameter on at least one of the plurality of semiconductor light emitting devices based on the feedback, and cause the at least one semiconductor light emitting devices to emit a second CSE.   
     
     
         2 - 28 . (canceled)