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1. WO2020063156 - PROJECTION SCREEN AND PROJECTION SYSTEM

Publication Number WO/2020/063156
Publication Date 02.04.2020
International Application No. PCT/CN2019/100483
International Filing Date 14.08.2019
IPC
G03B 21/602 2014.01
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
21Projectors or projection-type viewers; Accessories therefor
54Accessories
56Projection screens
60characterised by the nature of the surface
602Lenticular screens
CPC
G03B 21/602
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
21Projectors or projection-type viewers; Accessories therefor
54Accessories
56Projection screens
60characterised by the nature of the surface
602Lenticular screens
Applicants
  • 深圳光峰科技股份有限公司 APPOTRONICS CORPORATION LIMITED [CN]/[CN]
Inventors
  • 王霖 WANG, Lin
  • 孙微 SUN, Wei
  • 王杰 WANG, Jie
  • 胡飞 HU, Fei
  • 李屹 LI, Yi
Priority Data
201811128808.227.09.2018CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) PROJECTION SCREEN AND PROJECTION SYSTEM
(FR) ÉCRAN DE PROJECTION ET SYSTÈME DE PROJECTION
(ZH) 投影屏幕和投影系统
Abstract
(EN)
A projection screen and a projection system using the projection screen. The projection screen comprises a microstructure layer (20) and a light absorbing layer (10) sequentially stacked from the side where a projected light is introduced. The microstructure layer (20) comprises multiple microstructure units. Each microstructure unit comprises one reflective surface (21) and one lens surface (22) opposite the reflective surface (21); moreover, the reflective surface (21) is provided at a position matching the focus of the lens surface (22). The projection screen and the projection system can resist ambient light and have a high gain and a high contrast.
(FR)
La présente invention concerne un écran de projection et un système de projection utilisant l'écran de projection. L'écran de projection comprend une couche de microstructures (20) et une couche d'absorption de lumière (10) empilées dans cet ordre à partir du côté où une lumière projetée est introduite. La couche de microstructures (20) comprend de multiples unités de microstructures. Chaque unité de microstructure comprend une surface réfléchissante (21) et une surface de lentille (22) en regard de la surface réfléchissante (21) ; de plus, la surface réfléchissante (21) est disposée au niveau d'une position correspondant au foyer de la surface de lentille (22). L'écran de projection et le système de projection peuvent résister à la lumière ambiante et avoir un gain élevé et un contraste élevé.
(ZH)
一种投影屏幕和使用投影屏幕的投影系统,投影屏幕包括从投影光线的入射侧依次层叠设置的微结构层(20)和吸光层(10),微结构层(20)包括多个微结构单元,各微结构单元包含一个反射面(21)和与反射面(21)相对的一个透镜面(22),并且反射面(21)设置在与透镜面(22)的焦点相匹配的位置上。投影屏幕和投影系统能够抗环境光并且具有高增益和高对比度。
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