US 12,152,742 B2
Laser-based light guide-coupled wide-spectrum light system
Eric Goutain, Fremont, CA (US); Terry Towe, Tucson, AZ (US); Naji Barakat, Tucson, AZ (US); Sten Heikman, Goleta, CA (US); Oscar Romero, Goleta, CA (US); and Raymond Ong, Goleta, CA (US)
Assigned to KYOCERA SLD Laser, Inc., Goleta, CA (US)
Filed by KYOCERA SLD Laser, Inc., Goleta, CA (US)
Filed on Jun. 13, 2022, as Appl. No. 17/839,135.
Application 17/839,135 is a continuation in part of application No. 16/597,791, filed on Oct. 9, 2019.
Application 16/597,791 is a continuation in part of application No. 16/380,217, filed on Apr. 10, 2019, granted, now 12,000,552.
Application 16/380,217 is a continuation in part of application No. 16/252,570, filed on Jan. 18, 2019, granted, now 11,884,202.
Prior Publication US 2022/0333745 A1, Oct. 20, 2022
Int. Cl. F21K 9/64 (2016.01); F21K 9/61 (2016.01); F21K 9/69 (2016.01); F21V 8/00 (2006.01)
CPC F21K 9/64 (2016.08) [F21K 9/61 (2016.08); F21K 9/69 (2016.08); G02B 6/0006 (2013.01); G02B 6/0008 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A laser-based fiber-coupled wide-spectrum light system comprising:
a wide-spectrum light source module located at a source position, comprising:
a plurality of laser devices each comprising a gallium and nitrogen containing material and configured as an excitation source, each of the laser devices comprising an output facet configured to output a laser electromagnetic radiation with a first wavelength ranging from 385 nm to 495 nm;
a plurality of phosphor members each corresponding to one of the plurality of laser devices, each of the phosphor members configured as a wavelength converter and an emitter and disposed to allow a primary surface to receive the laser electromagnetic radiation from the corresponding one of the plurality of laser devices;
an angle of incidence configured between the laser electromagnetic radiation from each of the laser devices and the primary surface of the corresponding one of the plurality of phosphor members, each of the phosphor members configured to convert at least a fraction of the laser electromagnetic radiation with the first wavelength to a phosphor emission with a second wavelength that is longer than the first wavelength;
a light-emission mode characterizing the plurality of phosphor members with a plurality of wide-spectrum emissions each generated from at least an interaction of the laser electromagnetic radiation from one of the plurality of laser devices with the phosphor emission from the corresponding one of the plurality of phosphor members, the plurality of wide-spectrum emissions each comprising of a mixture of wavelengths characterized by at least the second wavelength;
an optics member comprising a collimating optics member and a focusing optics member, the optics member configured to receive the plurality of wide-spectrum emissions and focus each of the wide-spectrum emissions, wherein adjacent ones of the plurality of wide-spectrum emissions overlap spatially in the collimating optics member and in the focusing optics member; and
multiple fibers each configured to have a first end to couple with one of the plurality of wide-spectrum emissions focused by the optics member and to output the respective wide-spectrum emission to a second end.