US Patent:
20210151956, May 20, 2021
Inventors:
- Goleta CA, US
Paul Rudy - Manhattan Beach CA, US
Eric Goutain - Fremont CA, US
Troy Trottier - Cary NC, US
Melvin McLaurin - Santa Barbara CA, US
James Harrison - Oro Valley AZ, US
Sten Heikman - Goleta CA, US
Michael Cantore - Goleta CA, US
International Classification:
H01S 5/32
H01S 5/00
F21K 9/64
H01S 5/343
H01S 5/02257
H01S 5/02326
Abstract:
The embodiments described herein provide a device and method for an integrated white colored electromagnetic radiation source using a combination of laser diode excitation sources based on gallium and nitrogen containing materials and light emitting source based on phosphor materials. A violet, blue, or other wavelength laser diode source based on gallium and nitrogen materials may be closely integrated with phosphor materials, such as yellow phosphors, to form a compact, high-brightness, and highly-efficient, white light source. The phosphor material is provided with a plurality of scattering centers scribed on an excitation surface or inside bulk of a plate to scatter electromagnetic radiation of a laser beam from the excitation source incident on the excitation surface to enhance generation and quality of an emitted light from the phosphor material for outputting a white light emission either in reflection mode or transmission mode.