Title:
LIGHT SOURCE ASSEMBLY AND PROJECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/259270
Kind Code:
A1
Abstract:
A light source assembly, comprising a light emitting assembly (101), a light combining structure (102), a light dimming component (107), a collimating lens group (105), and a phosphor wheel (103). The light combining structure (102) at least comprises a reflection portion (1022); the phosphor wheel (103) comprises a first region and a second region; the light emitting assembly (101) emits laser, and the laser sequentially passes through the light dimming component (107) and the collimating lens group (105) to be irradiated to the phosphor wheel (103); the light dimming component (107) is used for increasing the angle of divergence of the laser and changing the shape of a light spot formed by the laser on the phosphor wheel (103); the phosphor wheel (103) rotates around a rotating shaft, and in the rotating process, the different regions of the phosphor wheel (103) are irradiated by the laser; when the laser is irradiated to the first region, the laser excites the first region to emit fluorescent light to the collimating lens group (105), and the fluorescent light passes through the collimating lens group (105) to be irradiated to the reflection portion; when the laser is irradiated to the second region, the laser is reflected in the second region and then passes through the collimating lens group (105) to be irradiated to the reflection portion (1022); and the reflection portion (1022) is used for turning the transmission direction of incident light.
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Inventors:
LI WEI (CN)
GU XIAOQIANG (CN)
TANG TIANTIAN (CN)
GU XIAOQIANG (CN)
TANG TIANTIAN (CN)
Application Number:
PCT/CN2021/101568
Publication Date:
December 30, 2021
Filing Date:
June 22, 2021
Export Citation:
Assignee:
HISENSE LASER DISPLAY CO LTD (CN)
International Classes:
G03B21/20
Foreign References:
| US20160327851A1 | 2016-11-10 | |||
| CN107561834A | 2018-01-09 | |||
| CN107561835A | 2018-01-09 | |||
| CN110221508A | 2019-09-10 | |||
| JP2014075221A | 2014-04-24 | |||
| CN206594438U | 2017-10-27 |
Attorney, Agent or Firm:
TDIP & PARTNERS (CN)
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