Title:
DIFFUSION SHEET ASSEMBLY, BEAM SPECKLE ELIMINATION APPARATUS, AND PROJECTOR
Document Type and Number:
WIPO Patent Application WO/2023/020165
Kind Code:
A1
Abstract:
A diffusion sheet assembly, a beam speckle elimination apparatus, and a projector. The diffusion sheet assembly comprises, in a beam passing direction, a first diffusion sheet (10), a fixing layer (1), and a second diffusion sheet (20) that are stacked in sequence; the first diffusion sheet (10) is connected to the fixing layer (1) by means of a first elastic member (2), and the first elastic member (2) can be deformed in a direction parallel to the first diffusion sheet (10), such that the first diffusion sheet (10) can move relative to the fixing layer (1); the fixing layer (1) is provided with a first light transmitting portion (11) for a beam to pass through, and the first diffusion sheet (10) and the second diffusion sheet (20) are provided opposite to the first light transmitting portion (11); the second diffusion sheet (20) is connected to the fixing layer (1) by means of a second elastic member (3), and the second elastic member (3) can be deformed in a direction parallel to the second diffusion sheet (20), such that the second diffusion sheet (20) can move relative to the fixing layer (1); a driving portion (4) is used for driving the first diffusion sheet (10) and the second diffusion sheet (20) to move relative to the fixing layer (1) in different directions.
Inventors:
OUYANG JIAN (CN)
XU XUSHENG (CN)
ZHANG CONG (CN)
HU ZHENYU (CN)
XU XUSHENG (CN)
ZHANG CONG (CN)
HU ZHENYU (CN)
Application Number:
PCT/CN2022/105283
Publication Date:
February 23, 2023
Filing Date:
July 12, 2022
Export Citation:
Assignee:
SHENZHEN HOLATEK CO LTD (CN)
International Classes:
G03B21/14; G02B5/02; G02B26/06; G02B27/48
Foreign References:
| CN113641062A | 2021-11-12 | |||
| CN105573037A | 2016-05-11 | |||
| CN112764297A | 2021-05-07 | |||
| CN101738695A | 2010-06-16 | |||
| CN109669315A | 2019-04-23 | |||
| CN207020408U | 2018-02-16 | |||
| US20160306183A1 | 2016-10-20 |
Attorney, Agent or Firm:
INNOTRACK INTELLECTUAL PROPERTY LAW FIRM (CN)
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