LIGHT SOURCE DEVICE

Title:

LIGHT SOURCE DEVICE

Document Type and Number:

WIPO Patent Application WO/2020/001057

Kind Code:

A1

Abstract:

A light source device, comprising: a laser light source (310) used for emitting first light; a refractive optical element (330) disposed on the emergent light path of the laser light source (310) and used for guiding same to be incident to a light conversion device (340), the refractive optical element (330) comprising an emergent surface (331), and light refracted by the emergent surface (331) of the refractive optical element (330) being shifted toward the direction of the light conversion device (340) to emerge; the light conversion device (340) that is disposed at the emergent side of the refractive optical element (330), wherein an incident surface and emergent surface thereof are the same surface, Brewster's angle of a medium on the incident surface of the light conversion device (340) is α, and the emergent light of the refractive optical element (330) is obliquely incident to the light conversion device (340) at an incident angle of α-20° to α+10°; and a light collecting device (350) that is disposed at the emergent side of the light conversion device (340) and is used for collecting and then emitting light that is emitted from the light conversion device (340). The present light source device achieves a compact optical path structure and may simultaneously obtain emergent light spots the color of which is uniform and consistent.

Inventors:

CHEN BIN (CN)
LI YI (CN)

Application Number:

PCT/CN2019/076655

Publication Date:

January 02, 2020

Filing Date:

March 01, 2019

Export Citation:

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Assignee:

YLX INC (CN)

International Classes:

G03B21/20; F21V13/14

Domestic Patent References:

WO2016039322A1

2016-03-17

Foreign References:

CN205880480U	2017-01-11
CN105003843A	2015-10-28
CN105911805A	2016-08-31
CN102305386A	2012-01-04
CN206906777U	2018-01-19

Other References: