Title:
LIGHT SOURCE ASSEMBLY AND PROJECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/007679
Kind Code:
A1
Abstract:
A light source assembly and a projection device. The light source assembly (10) comprises: a laser (101), a first light-emitting area (Y1) emitting first laser light, and second light-emitting areas (Y2, Y21, Y22) emitting second laser light having a divergence angle less than that of the first laser light; a first light combining lens group (102), reflecting the first laser light to a light outlet of the light source assembly (10); and a second light combining lens group (103), comprising m light combining lenses sequentially arranged along a light-emitting direction of the second light-emitting areas (Y2, Y21, Y22), wherein there is a gap between an ith light combining lens and an (i+1)th light combining lens in the m light combining lenses, m≥2, and 1≤i≤m-1. The ith light combining lens comprises reflective areas (a1, a2, a3) and transmissive areas (b1, b2, b3), the reflective areas (a1, a2, a3) reflect the incident second laser light to the light outlet, and the transmissive areas (b1, b2, b3) transmit the incident second laser light to the (i+1)th light combining lens; an mth light combining lens reflects the incident second laser light to the light outlet.
More Like This:
Inventors:
LI WEI (CN)
Application Number:
PCT/CN2021/103531
Publication Date:
January 13, 2022
Filing Date:
June 30, 2021
Export Citation:
Assignee:
HISENSE LASER DISPLAY CO LTD (CN)
International Classes:
G03B21/20
Foreign References:
| CN111258165A | 2020-06-09 | |||
| CN106997142A | 2017-08-01 | |||
| CN106873297A | 2017-06-20 | |||
| CN110275379A | 2019-09-24 | |||
| CN102722071A | 2012-10-10 | |||
| CN208060924U | 2018-11-06 | |||
| JP2012079622A | 2012-04-19 |
Attorney, Agent or Firm:
TDIP & PARTNERS (CN)
Download PDF:
Previous Patent: METHOD FOR OPENING FILE, AND DEVICE
Next Patent: CONTROL SYSTEM FOR OIL/WATER-SUBMERSIBLE SYSTEM
Next Patent: CONTROL SYSTEM FOR OIL/WATER-SUBMERSIBLE SYSTEM