US 11,892,653 B2Granted

Light source module

AssigneeQisda Corporation

InventorsChih-Shiung Chien, Ming-Kuen Lin, Yi-Ling Lo, Tsung-Hsun Wu

Life of this patent

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Abstract

A light source module includes a first light-splitting element, a second light-splitting element, a first light source, a second light source and a third light source. The first light source emits a first light having a first wavelength to the first light-splitting element in a first optical path direction. The second light source emits a second light having the first wavelength to the first light-splitting element in a second optical path direction perpendicular to the first optical path direction. The third light source emits a third light having a second wavelength to the first and second light-splitting elements in a third optical path direction opposite to the second optical path direction, and the second wavelength is different from the first wavelength. The first light source and the second light source include reflection layers configured to reflect light having the first wavelength.

Claims20

Dependent claims

A light source module, comprises:

a first light-splitting element;
a second light-splitting element;
a first light source configured to emit a first light having a first wavelength to the first light-splitting element in a first optical path direction;
a second light source configured to emit a second light having the first wavelength to the first light-splitting element in a second optical path direction substantially perpendicular to the first optical path direction;
a third light source configured to emit a third light having a second wavelength to the first light-splitting element and the second light-splitting element in a third optical path direction, wherein the third optical path direction is opposite to the second optical path direction, and the second wavelength is different from the first wavelength;
wherein the first light source comprises a first reflection layer, the second light source comprises a second reflection layer, and the first reflection layer and the second reflection layer are configured to reflect light having the first wavelength.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/731,209Filed 27 Apr 2022
Priority: TW 11014044729 Oct 2021
Published: US 2023/0135388 A14 May 2023
Granted: 6 Feb 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

G02B 27/1006
Beam splitting or combining systems: for splitting or combining different wavelengths
F21K 9/60
Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers: optical arrangements…
F21V 7/22
Reflectors for light sources: characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
F21V 13/12
Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main…:…