Title:
OPTICAL ENGINE AND LASER PROJECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/268221
Kind Code:
A1
Abstract:
An optical engine (A) and a laser projection device (10). The optical engine (A) comprises: a light source assembly (111a), a prism assembly (113a), a light valve assembly (114a), and a lens assembly (14). The light valve assembly (114a) comprises at least two light valves. The prism assembly (113a) comprises a light source light incident surface (B1), a prism light exit surface (B4), and at least two light valve light incident surfaces having one-to-one correspondence to the at least two light valves; the prism assembly (113a) can receive at least two beams of incident light by means of the light source light incident surface (B1) so as to guide the incident light corresponding to each light valve to the corresponding light valve, respectively, and can guide a beam output by each light valve to the prism light exit surface (B4) to direct same to the lens assembly (14).
Inventors:
DU YUNAN (CN)
YIN LIANG (CN)
YIN LIANG (CN)
Application Number:
PCT/CN2022/101340
Publication Date:
December 29, 2022
Filing Date:
June 24, 2022
Export Citation:
Assignee:
HISENSE LASER DISPLAY CO LTD (CN)
International Classes:
G03B21/14; G02B26/08; G03B21/20
Foreign References:
| CN113376937A | 2021-09-10 | |||
| CN113376936A | 2021-09-10 | |||
| CN113376945A | 2021-09-10 | |||
| CN113376946A | 2021-09-10 | |||
| CN112882226A | 2021-06-01 | |||
| CN106054359A | 2016-10-26 | |||
| CN207424511U | 2018-05-29 | |||
| CN1797177A | 2006-07-05 | |||
| JP2011248327A | 2011-12-08 |
Attorney, Agent or Firm:
BEIJING ZBSD PATENT&TRADEMARK AGENT LTD. (CN)
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