公开(公告)号：US11316321B1

公开(公告)日：2022-04-26

申请号：US16777355

申请日：2020-01-30

Applicant: KYOCERA SLD Laser, Inc.

Inventor： James W. Raring ,  Paul Rudy ,  Steve DenBaars ,  Troy Trottier

IPC: H01S5/00 ,  H01S5/026 ,  H01S5/14 ,  H01S5/323 ,  H01S5/028 ,  H01S5/068

Abstract: The present invention provides a device and method for a laser based light source using a combination of laser diode or waveguide gain element excitation source based on gallium and nitrogen containing materials and wavelength conversion phosphor materials designed for inherent safety. In this invention a violet, blue, or other wavelength laser diode source based on gallium and nitrogen materials is closely integrated with phosphor materials, such as yellow phosphors, to form a compact, high-brightness, and highly-efficient, light source with closed loop design features to yield the light source as an eye safe light source.