Title:
SWITCHABLE SYSTEMS FOR WHITE LIGHT WITH HIGH COLOR RENDERING AND BIOLOGICAL EFFECTS
Document Type and Number:
WIPO Patent Application WO/2019/140309
Kind Code:
A1
Abstract:
The present disclosure provides lighting systems, which may he semiconductor light emitting devices, with two or more of blue, red, 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. The yellow, red, and violet channels can be used in an operational mode to provide low EML values while providing white light between about 1800K and about 3500K CCT.
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Inventors:
PETLURI RAGHURAM (US)
PICKARD PAUL (US)
PICKARD PAUL (US)
Application Number:
PCT/US2019/013359
Publication Date:
July 18, 2019
Filing Date:
January 11, 2019
Export Citation:
Assignee:
ECOSENSE LIGHTING INC (US)
International Classes:
H05B44/00
Domestic Patent References:
| WO2017131715A1 | 2017-08-03 | |||
| WO2016130464A1 | 2016-08-18 |
Foreign References:
| US20170223786A1 | 2017-08-03 | |||
| US20150002034A1 | 2015-01-01 | |||
| US20150062892A1 | 2015-03-05 | |||
| US20140035472A1 | 2014-02-06 |
Attorney, Agent or Firm:
KRIETZMAN, Mark, H. (US)
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