Title:
LIGHT SOURCE SYSTEM AND PROJECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/144544
Kind Code:
A1
Abstract:
Provided are a light source system and a projection device. The light source system comprises an excitation light source, a supplemental light source, a wavelength conversion apparatus and a guide apparatus, wherein the guide apparatus comprises a first beam-splitting filter, a second beam-splitting filter, a third beam-splitting filter and a fourth beam-splitting filter; the second beam-splitting filter comprises a central region and a peripheral region around the central region; fluorescent light of a first colour generated by the wavelength conversion apparatus under excitation of the excitation light successively passes through the first beam-splitting filter and the peripheral region and is reflected to the third beam-splitting filter; laser of a first colour emitted from the supplemental light source passes through the central region and then irradiates the third beam-splitting filter; the third beam-splitting filter reflects the fluorescent light of a first colour and the laser of a first colour to a light-out channel; and the laser emitted from a transmissive region of the wavelength conversion apparatus is reflected by the fourth beam-splitting filter, and then enters the light-out channel through the third beam-splitting filter.
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Inventors:
GUO ZUQIANG (CN)
ZHANG BAOYING (CN)
LI YI (CN)
ZHANG BAOYING (CN)
LI YI (CN)
Application Number:
PCT/CN2018/088509
Publication Date:
August 01, 2019
Filing Date:
May 25, 2018
Export Citation:
Assignee:
APPOTRONICS CORP LTD (CN)
International Classes:
G03B21/20
Foreign References:
| CN203745789U | 2014-07-30 | |||
| CN105204279A | 2015-12-30 | |||
| CN105652572A | 2016-06-08 | |||
| CN106383428A | 2017-02-08 |
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