Title:
PROJECTION APPARATUS
Document Type and Number:
WIPO Patent Application WO/2023/025308
Kind Code:
A1
Abstract:
A projection apparatus (1000), the projection device (1000) comprising a projection screen (100) and an optical engine (200). The projection screen (100) is configured to display a projected image. The projection screen (100) comprises a frame (1) and a curtain (2). The frame (1) comprises a left frame (13), a right frame (14), and a folding mechanism (10) located between the left frame (13) and the right frame (14). The folding mechanism (10) comprises a hinge (15), the hinge (15) comprising a first hinge leaf (151), a second hinge leaf (152), and a hinge shaft (153). The first hinge leaf (151) is fixedly connected to the left frame (13), the second hinge leaf (152) is fixedly connected to the right frame (14), and the first hinge leaf (151) and the second hinge leaf (152) are connected to the hinge shaft (153) and capable of rotating around the hinge shaft (153). The curtain (2) is fixedly connected to the frame (1). The optical engine (200) is configured to emit a light beam to the projection screen (100).
Inventors:
DAI QI (CN)
ZHANG JIAN (CN)
YANG CHANGMING (CN)
ZHANG HAIPENG (CN)
XIAO WEI (CN)
ZHANG JIAN (CN)
YANG CHANGMING (CN)
ZHANG HAIPENG (CN)
XIAO WEI (CN)
Application Number:
PCT/CN2022/115260
Publication Date:
March 02, 2023
Filing Date:
August 26, 2022
Export Citation:
Assignee:
HISENSE LASER DISPLAY CO LTD (CN)
International Classes:
G03B21/58
Foreign References:
| CN213876293U | 2021-08-03 | |||
| US20070285337A1 | 2007-12-13 | |||
| CN213876294U | 2021-08-03 | |||
| CN112666784A | 2021-04-16 | |||
| CN211180523U | 2020-08-04 | |||
| CN101504509A | 2009-08-12 | |||
| CN212322053U | 2021-01-08 |
Attorney, Agent or Firm:
BEIJING ZBSD PATENT & TRADEMARK AGENT LTD. (CN)
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