Invention Application
- Patent Title: TUNABLE WHITE LIGHT BASED ON POLARIZATION SENSITIVE LIGHT-EMITTING DIODES
- Patent Title (中): 基于偏振敏感发光二极管的白炽灯
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Application No.: US14567889Application Date: 2014-12-11
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Publication No.: US20150092386A1Publication Date: 2015-04-02
- Inventor: Natalie N. Fellows-DeMille , Hisashi Masui , Steven P. DenBaars , Shuji Nakamura
- Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
- Applicant Address: US CA Oakland
- Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
- Current Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
- Current Assignee Address: US CA Oakland
- Main IPC: F21K99/00
- IPC: F21K99/00 ; F21V9/10 ; F21V9/08 ; H01L33/00 ; H01S5/343 ; H01L33/50 ; H01L33/58 ; H01L25/075 ; H01S5/00 ; F21V9/14 ; H01L33/32

Abstract:
A lighting apparatus for emitting polarized white light, which includes at least a first light source for emitting primary light comprised of one or more first wavelengths and having a first polarization direction; and at least a second light source for emitting secondary light in the first polarization direction, comprised of one or more secondary wavelengths, wherein the first light and the secondary light are combined to produce a polarized white light. The lighting apparatus may further comprise a polarizer for controlling the primary light's intensity, wherein a rotation of the polarizer varies an alignment of its polarization axis with respect to the first polarization direction, which varies transmission of the primary light through the polarizer, which controls a color co-ordinate or hue of the white light.
Public/Granted literature
- US09951912B2 Tunable white light based on polarization sensitive light-emitting diodes Public/Granted day:2018-04-24
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