Title:
LIGHT SOURCE DEVICE AND PROJECTION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2024/002283
Kind Code:
A1
Abstract:
A light source device (100) and a projection system, which belong to the technical field of photoelectricity. The light source device (100) comprises a first laser light source group (1), a second laser light source group (2), a dichroic mirror (3), a fluorescence conversion device (4) and an emergence member (5), wherein the first laser light source group (1) is configured for the emergence of a laser in a first waveband, and the second laser light source group (2) is configured for the emergence of a laser in a second waveband and a laser in a third waveband; the dichroic mirror (3) is located on a light emergent side of each laser light source group, and the fluorescence conversion device (4) and the emergence member (5) are located on a light emergent side of the dichroic mirror (3); the dichroic mirror (3) is configured for the emergence of lasers in said wavebands; the fluorescence conversion device (4) can be excited by the laser in the first waveband to generate target fluorescence, and the target fluorescence is reflected by the dichroic mirror (3) to the emergence member (5); and the target fluorescence can provide fluorescence in the second waveband and fluorescence in the third waveband. The light source device (100) comprises at least three light beams, which are correspondingly emergent from the emergence member (5) in a time sequence, and comprise: the individual emergence of the laser in the first waveband, the combined emergence of the laser and fluorescence in the second waveband, and the combined emergence of the laser and fluorescence in the third waveband. In this way, the projection picture display effect can be effectively improved.
Inventors:
YAN KE (CN)
ZHANG YONG (CN)
GU XIAOQIANG (CN)
ZHANG YONG (CN)
GU XIAOQIANG (CN)
Application Number:
PCT/CN2023/104127
Publication Date:
January 04, 2024
Filing Date:
June 29, 2023
Export Citation:
Assignee:
HISENSE LASER DISPLAY CO LTD (CN)
International Classes:
G03B21/20
Foreign References:
| CN107885021A | 2018-04-06 | |||
| CN207676111U | 2018-07-31 | |||
| CN113777870A | 2021-12-10 | |||
| CN113900332A | 2022-01-07 | |||
| CN113900341A | 2022-01-07 | |||
| CN109375462A | 2019-02-22 | |||
| CN213182296U | 2021-05-11 | |||
| JP2020197621A | 2020-12-10 |
Attorney, Agent or Firm:
BEIJING SAN GAO YONG XIN INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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