LIGHT SOURCE DEVICE AND PROJECTION APPARATUS

WIPO Patent Application WO/2021/135961

A1

Embodiments of the present application provide a light source device, comprising a light source, an optical expansion assembly, and a light combining assembly. The light source comprises a laser module and a fluorescent module, the laser module is used for emitting laser light, and the fluorescent module is used for emitting fluorescent light. The optical expansion assembly is used for increasing the optical expansion amount of the laser light, so that the difference between the increased optical expansion amount of the laser light and the optical expansion amount of the fluorescent light is less than or equal to a preset threshold. The light combining assembly is used for combining the fluorescent light with the laser light expanded by the optical expansion assembly and emitting the combined light. By optically expanding laser rays having a small optical expansion amount and relatively concentrated energy, the optical expansion amount of the laser rays is increased, the heat of the laser light is prevented from being excessively concentrated and from burning or aging parts in the light source device, and the reliability of the light source device is improved. Moreover, the embodiments of the present application further provide a projection apparatus.

GUO ZUQIANG (CN)
CHEN CHEN (CN)
MO MEINI (CN)
HU FEI (CN)
LI YI (CN)

PCT/CN2020/137093

July 08, 2021

December 17, 2020

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APPOTRONICS CORP LTD (CN)

G03B21/20; H04N9/31

CN109870871A	2019-06-11
CN109557751A	2019-04-02
CN109991803A	2019-07-09
CN107515511A	2017-12-26
CN105842969A	2016-08-10
US20150153636A1	2015-06-04

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