Title:
SCREEN DEVICE AND PROJECTION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/136833
Kind Code:
A1
Abstract:
A screen device and a projection system, the screen device comprising a screen frame (2), a screen (4), and elastic elements (3) connecting the screen frame (2) and the screen (4). The screen frame (2) is provided with adjustment mechanisms (1) for adjusting the connection position of the elastic elements (3), one end of each elastic element (3) is connected to the screen (4), the other end of the elastic element is connected to an adjustment mechanism (1), and the adjustment mechanisms (1) are slidably provided on the screen frame (2). The adjustment mechanisms (1) change the amount of deformation of the elastic elements (3) to further adjust the magnitude of the distribution force applied on the screen (4). The tautening of different substrates or screens (4) having different thicknesses can be realized, adjustment is simple, and reliability is high. The present invention can be used for fastening most projection screens and similar frame structures.
Inventors:
FU JINJIANG (CN)
HU FEI (CN)
TANG ZEDA (CN)
LI YI (CN)
HU FEI (CN)
TANG ZEDA (CN)
LI YI (CN)
Application Number:
PCT/CN2018/080881
Publication Date:
July 18, 2019
Filing Date:
March 28, 2018
Export Citation:
Assignee:
APPOTRONICS CORP LTD (CN)
International Classes:
G03B21/56
Foreign References:
| CN203275868U | 2013-11-06 | |||
| GB893632A | 1962-04-11 | |||
| CN203941375U | 2014-11-12 | |||
| CN203595889U | 2014-05-14 | |||
| CN202257017U | 2012-05-30 | |||
| CN202330993U | 2012-07-11 |
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