Invention Grant
- Patent Title: Apparatus having blue light source, dichroic mirror and phosphor converter to generate white light
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Application No.: US15850698Application Date: 2017-12-21
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Publication No.: US10458612B2Publication Date: 2019-10-29
- Inventor: Vikrant R. Bhakta
- Applicant: TEXAS INSTRUMENTS INCORPORATED
- Applicant Address: US TX Dallas
- Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee Address: US TX Dallas
- Agent Michael A. Davis, Jr.; Charles A. Brill; Frank D. Cimino
- Main IPC: F21S41/16
- IPC: F21S41/16 ; F21S41/14 ; F21S41/147 ; F21S41/143 ; F21S41/64 ; F21S41/675 ; G03B21/20 ; H01S5/00 ; F21S41/33 ; F21S41/36 ; F21S41/32 ; F21S41/30 ; F21S41/173 ; F21S41/265 ; F21S41/255 ; F21S41/176

Abstract:
An illumination apparatus is provided that includes a yellow phosphor converter to receive a blue laser light beam and to convert a portion of the blue laser light beam to yellow light, a dichroic mirror optically coupled to the yellow phosphor converter to receive the phosphor-emitted light beam and to filter the phosphor-emitted light beam to provide a dichroic-filtered light beam, the dichroic mirror configured to pass yellow light and to reflect at least some blue light, and a blue light source optically coupled to the dichroic mirror to provide a blue light beam, the dichroic mirror configured to reflect the blue light beam in a same direction as the dichroic-filtered light beam.
Public/Granted literature
- US20180135823A1 HYBRID ILLUMINATION FOR HEADLAMP Public/Granted day:2018-05-17
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