Title:
LIGHT SOURCE ASSEMBLY AND PROJECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/259269
Kind Code:
A1
Abstract:
A light source assembly and a projection device, the light source assembly (10) comprising a light emitting assembly (101) for emitting a first laser (S1) and a second laser (S2), the positions of incidence of the first laser (S1) and the second laser (S2) on a convergence lens group (105) being distributed on both sides of the optical axis (h) of the convergence lens group, and not being symmetrical about the optical axis (h) of the convergence lens group (105), such that the first laser (S1) and the second laser (S2) can excite a fluorescent area (1031) to respectively produce first fluorescence (E1) and second fluorescence (E2), the first fluorescence (E1) and the second fluorescence (E2) respectively being incident on a first combining part (1022a) and a second combining part (1022b) when reflected by a fluorescent wheel (103); the first laser (S1) and the second laser (S2) can be reflected by a reflection area (1032) of the fluorescent wheel (103), and are incident on the first combining part (1022a) and the second combining part (1022b) to implement combined output of laser and fluorescence. The light source assembly has a compact optical structure and can implement higher light emitting power output.
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| WO/2020/259619 | OPTICAL ENGINE SYSTEM AND DISPLAY APPARATUS |
| WO/2018/107634 | LIGHT SOURCE SYSTEM AND PROJECTION DEVICE |
| WO/2024/065695 | POLARIZATION LIGHT SOURCE APPARATUS |
Inventors:
LI WEI (CN)
HAN WUYUE (CN)
TIAN YOULIANG (CN)
HAN WUYUE (CN)
TIAN YOULIANG (CN)
Application Number:
PCT/CN2021/101567
Publication Date:
December 30, 2021
Filing Date:
June 22, 2021
Export Citation:
Assignee:
HISENSE LASER DISPLAY CO LTD (CN)
International Classes:
G03B21/20; G02B26/04
Foreign References:
| CN111025833A | 2020-04-17 | |||
| CN108931880A | 2018-12-04 | |||
| US10451959B2 | 2019-10-22 | |||
| CN110543073A | 2019-12-06 | |||
| CN108572497A | 2018-09-25 |
Attorney, Agent or Firm:
TDIP & PARTNERS (CN)
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