WO2019218701A1 - Écran de projection et système de projection comprenant un écran de projection - Google Patents

Écran de projection et système de projection comprenant un écran de projection Download PDF

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Publication number
WO2019218701A1
WO2019218701A1 PCT/CN2019/070525 CN2019070525W WO2019218701A1 WO 2019218701 A1 WO2019218701 A1 WO 2019218701A1 CN 2019070525 W CN2019070525 W CN 2019070525W WO 2019218701 A1 WO2019218701 A1 WO 2019218701A1
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WO
WIPO (PCT)
Prior art keywords
screen
frame
projection
base
projection screen
Prior art date
Application number
PCT/CN2019/070525
Other languages
English (en)
Chinese (zh)
Inventor
黄旻
李屹
Original Assignee
深圳光峰科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳光峰科技股份有限公司 filed Critical 深圳光峰科技股份有限公司
Publication of WO2019218701A1 publication Critical patent/WO2019218701A1/fr

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS 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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/54—Accessories
    • G03B21/56—Projection screens

Definitions

  • the projection screen may further include: an outer base and an inner base, wherein the outer base and the inner base are respectively fixed at the front of the screen at each corner of the screen Side and back side.
  • Each of the pegs may be disposed in the outer base, the screen surface, and the inner base.
  • the face may be rectangular.
  • the peg may be formed with a limiting portion spaced apart from the peg head by a first predetermined distance to form a clamping element between the limiting portion and the peg head for abutting Clearance.
  • the corner portion since the corner portion is provided, the end portion of the inner frame can be manufactured by straight cutting. Therefore, compared with the prior art, the processing precision requirements of the frame are reduced, and no additional corner alignment is required for assembly, thereby reducing manufacturing expenditure and ensuring the quality reliability of the basic frame of the screen.
  • the connecting plate is provided with a positioning pin, which can reduce the processing or assembly requirements of the basic frame, so that the yield of the product rises.
  • Figure 8 shows an assembled view of the upper left corner of the basic frame of Figure 6.
  • the inner base 11 is disposed at each corner of the face 10.
  • the inner base 11 can also be of various shapes.
  • the inner base 11 is a right-angled triangle, and the right-angled portion coincides with the corner of the screen surface 10.
  • the pegs 14 are provided with a limiting portion 16 spaced apart from the peg head 17 by a first predetermined distance, thereby forming a hooking tension between the limiting portion 16 and the peg head portion 17.
  • the gap of the element 13 to define the abutment position of the corresponding tensioning element 13.
  • a recess for abutting the tensioning element 13 may be provided at a position of the screw of the peg 14 corresponding to the gap. In this case as well, the same effect as the stopper can be achieved.
  • An inner bezel 21 is disposed on each side of the basic frame 20, and at each corner of the basic frame 20, a corner portion 22 is disposed between the ends of two adjacent inner bezels 21.
  • the connecting plate 23 connects and fixes the inner bezel 21 and the corner portion 22 together by screwing, riveting or the like to form a frame shape. In this example, as shown, the above fixing is achieved by screws.
  • the length of the inner bezel 21 on the vertical side of the basic frame 20 and the inner bezel 21 on the horizontal side may not be the same.
  • the length of the inner frame 21 on the vertical side may be different from the length of the inner frame 21 on the horizontal side.
  • the inner bezel 21 on the vertical side and the inner bezel 21 on the horizontal side differ only in length, both are collectively referred to as an inner bezel.
  • positioning holes are formed at respective positions of each of the connecting plate 23 and the inner bezel 21, by inserting the positioning pins 28 into these positions.
  • the relative position between the inner bezel 21 and the connecting plate 23 can be accurately positioned. In this way, even if the end of the inner bezel 21 is manufactured by straight cutting, that is, without the inner bezel 21 being machined to have a 45° sharp angle, no additional corner alignment is required for assembly. , thereby reducing manufacturing expenses.
  • the web 23 and the inner bezel 21 are fastened together by screws or other suitable means of attachment.
  • FIG. 9 shows a view in the case where the screen assembly is fixed to the basic frame 20 by the tensioning member 13.
  • the screen 1 can also have an outer bezel 30 on each side.
  • the outer frame 30 may be fixed to the base frame 20 and cover the peripheral edge of the base frame 20.
  • the inner frame is collectively referred to as an outer frame because the outer frame 30 on the vertical side and the outer frame 30 on the horizontal side differ only in length.
  • the curtain surface can be firmly fixed to the frame. Accordingly, the processing or assembly requirements can be reduced, resulting in an increase in the yield of the product.
  • the present invention also proposes a projection system using the projection screen proposed in the above embodiment.
  • a projection system can include a projection screen 1 as well as a projector.
  • the projector emits projection light and projects it onto the front side of the projection screen 1 (the side facing the viewer), whereby the viewer can view the content displayed on the projection screen 1, such as a video, an image, and the like.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Curtains And Furnishings For Windows Or Doors (AREA)
  • Overhead Projectors And Projection Screens (AREA)

Abstract

L'invention concerne un écran de projection (1) et un système de projection comprenant l'écran de projection (1). L'écran de projection (1) comprend : une surface d'écran (10), un clou de suspension (14) étant disposé sur une surface arrière de la surface d'écran (10) de chaque côté de chacun des quatre coins de la surface d'écran (10) ; un cadre de base (20), le cadre de base (20) ayant une forme de cadre correspondant à un contour externe de la surface d'écran (10), et une saillie (24) étant formée de manière saillante sur une surface avant du cadre de base (20) au point supérieur de chacun des coins du cadre de base (20), la surface avant faisant face à la surface arrière de la surface d'écran (10) ; et des éléments de tension (13), un élément de tension (13) étant suspendu à chacun des coins de la surface d'écran (10) entre chaque clou de suspension (14) et chaque saillie (24) de façon à tendre la surface d'écran (10) sur le cadre de base (20). La présente invention peut réduire efficacement les exigences de précision d'un processus de fabrication et les exigences de précision des composants ainsi que les exigences liées à un processus d'assemblage, et elle peut également répondre aux exigences en matière de produit.
PCT/CN2019/070525 2018-05-18 2019-01-05 Écran de projection et système de projection comprenant un écran de projection WO2019218701A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810478073.X 2018-05-18
CN201810478073.XA CN110501869A (zh) 2018-05-18 2018-05-18 投影屏幕和包括投影屏幕的投影系统

Publications (1)

Publication Number Publication Date
WO2019218701A1 true WO2019218701A1 (fr) 2019-11-21

Family

ID=68539385

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/070525 WO2019218701A1 (fr) 2018-05-18 2019-01-05 Écran de projection et système de projection comprenant un écran de projection

Country Status (2)

Country Link
CN (1) CN110501869A (fr)
WO (1) WO2019218701A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN211956103U (zh) * 2019-12-24 2020-11-17 深圳光峰科技股份有限公司 一种投影屏幕、平度调节装置及支撑限位装置
CN113359381A (zh) * 2020-03-04 2021-09-07 深圳光峰科技股份有限公司 投影系统及投影幕布调整方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101035233A (zh) * 2006-03-09 2007-09-12 索尼株式会社 背投式显示装置及透射型屏幕
US20100079860A1 (en) * 2008-09-30 2010-04-01 Seiko Epson Corporation Screen
KR100970676B1 (ko) * 2009-11-30 2010-07-15 (주) 골프존 스크린 골프용 스크린
CN202050490U (zh) * 2011-05-18 2011-11-23 浙江海盛科技股份有限公司 一种屏幕固定装置
CN206479762U (zh) * 2017-02-10 2017-09-08 广州市雄云视听设备有限公司 一种弧形窄边画框投影幕

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005056720A1 (de) * 2005-11-29 2007-05-31 Barco Control Rooms Gmbh Bildwand und Projektionsmodul für eine Bildwand
CN105954966B (zh) * 2009-06-12 2018-11-27 迪瑞波有限公司 投影屏配件、构建投影屏设备的方法以及便于构建投影屏设备的方法
CN202057946U (zh) * 2011-05-20 2011-11-30 北京中泰东邦科技有限责任公司 背投箱的框架结构
CN106443839B (zh) * 2016-11-18 2019-01-29 四川长虹电器股份有限公司 柔性超短焦投影光学膜及其屏幕

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101035233A (zh) * 2006-03-09 2007-09-12 索尼株式会社 背投式显示装置及透射型屏幕
US20100079860A1 (en) * 2008-09-30 2010-04-01 Seiko Epson Corporation Screen
KR100970676B1 (ko) * 2009-11-30 2010-07-15 (주) 골프존 스크린 골프용 스크린
CN202050490U (zh) * 2011-05-18 2011-11-23 浙江海盛科技股份有限公司 一种屏幕固定装置
CN206479762U (zh) * 2017-02-10 2017-09-08 广州市雄云视听设备有限公司 一种弧形窄边画框投影幕

Also Published As

Publication number Publication date
CN110501869A (zh) 2019-11-26

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