Invention Grant
- Patent Title: LED and phosphor combinations for high luminous efficacy lighting with superior color control
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Application No.: US16431094Application Date: 2019-06-04
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Publication No.: US11233178B2Publication Date: 2022-01-25
- Inventor: Marcus Jozef Henricus Kessels , Hans-Helmut Bechtel , Johannes Willem Herman Sillevis Smitt , Wouter Soer
- Applicant: Lumileds LLC
- Applicant Address: US CA San Jose
- Assignee: Lumileds LLC
- Current Assignee: Lumileds LLC
- Current Assignee Address: US CA San Jose
- Main IPC: H01L27/15
- IPC: H01L27/15 ; H01L33/50 ; F21K9/60
Abstract:
A light emitting device comprises a first group of one or more LEDs each configured to emit light having a blue color point in the 1931 CIE x,y Chromaticity Diagram, a second group of one or more LEDs each configured to emit light having a cyan or yellow color point in the 1931 CIE x,y Chromaticity Diagram, and a third group of one or more LEDs each configured to emit light having a red color point in the 1931 CIE x,y Chromaticity Diagram.
Information query
IPC分类:
