US 12,276,823 B2
Light source module
Yasuhiro Fujimoto, Setouchi (JP)
Assigned to KYOCERA Corporation, Kyoto (JP)
Appl. No. 18/564,415
Filed by KYOCERA Corporation, Kyoto (JP)
PCT Filed May 26, 2022, PCT No. PCT/JP2022/021620
§ 371(c)(1), (2) Date Nov. 27, 2023,
PCT Pub. No. WO2022/250118, PCT Pub. Date Dec. 1, 2022.
Claims priority of application No. JP2021-090061 (JP), filed on May 28, 2021.
Prior Publication US 2024/0288618 A1, Aug. 29, 2024
Int. Cl. F21V 8/00 (2006.01)
CPC G02B 6/0006 (2013.01) [G02B 6/0008 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A light source module, comprising:
a first light emitter configured to emit light with a first wavelength;
a second light emitter configured to emit light with a second wavelength different from the first wavelength;
a third light emitter configured to emit light with a third wavelength different from the first wavelength and the second wavelength;
a cladding; and
a core in the cladding, the core including
a first waveguide configured to transmit light emitted from the first light emitter,
a second waveguide configured to transmit light emitted from the second light emitter,
a third waveguide configured to transmit light emitted from the third light emitter,
a first merging portion in which two waveguides of the first waveguide, the second waveguide, or the third waveguide merge,
a second merging portion in which the first merging portion merges with a waveguide other than the two waveguides of the first waveguide, the second waveguide, or the third waveguide, and
an emission portion at one end of the second merging portion, wherein the second wavelength is longer than the first wavelength, and the third wavelength is longer than the second wavelength;
wherein the first waveguide and the second waveguide merge in the first merging portion, and
the third waveguide and the first merging portion merge in the second merging portion.