FR2952445B1 - Ecran de projection enroulable muni d'un dispositif d'integration dans un plenum d'un plafond - Google Patents

Ecran de projection enroulable muni d'un dispositif d'integration dans un plenum d'un plafond

Info

Publication number
FR2952445B1
FR2952445B1 FR0905411A FR0905411A FR2952445B1 FR 2952445 B1 FR2952445 B1 FR 2952445B1 FR 0905411 A FR0905411 A FR 0905411A FR 0905411 A FR0905411 A FR 0905411A FR 2952445 B1 FR2952445 B1 FR 2952445B1
Authority
FR
France
Prior art keywords
plenum
ceiling
roll
projection screen
integrating device
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
FR0905411A
Other languages
English (en)
Other versions
FR2952445A1 (fr
Inventor
Patrice Bernard Francois Congard
Jean Pierre Charrier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anagram Acoustics SARL
Original Assignee
Anagram Acoustics SARL
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 Anagram Acoustics SARL filed Critical Anagram Acoustics SARL
Priority to FR0905411A priority Critical patent/FR2952445B1/fr
Priority to EP10190448A priority patent/EP2322991A1/fr
Publication of FR2952445A1 publication Critical patent/FR2952445A1/fr
Application granted granted Critical
Publication of FR2952445B1 publication Critical patent/FR2952445B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • G03B21/58—Projection screens collapsible, e.g. foldable; of variable area

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
FR0905411A 2009-11-09 2009-11-09 Ecran de projection enroulable muni d'un dispositif d'integration dans un plenum d'un plafond Expired - Fee Related FR2952445B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR0905411A FR2952445B1 (fr) 2009-11-09 2009-11-09 Ecran de projection enroulable muni d'un dispositif d'integration dans un plenum d'un plafond
EP10190448A EP2322991A1 (fr) 2009-11-09 2010-11-09 Écrans de projection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0905411A FR2952445B1 (fr) 2009-11-09 2009-11-09 Ecran de projection enroulable muni d'un dispositif d'integration dans un plenum d'un plafond

Publications (2)

Publication Number Publication Date
FR2952445A1 FR2952445A1 (fr) 2011-05-13
FR2952445B1 true FR2952445B1 (fr) 2012-02-24

Family

ID=41572556

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0905411A Expired - Fee Related FR2952445B1 (fr) 2009-11-09 2009-11-09 Ecran de projection enroulable muni d'un dispositif d'integration dans un plenum d'un plafond

Country Status (2)

Country Link
EP (1) EP2322991A1 (fr)
FR (1) FR2952445B1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10684542B2 (en) 2017-05-16 2020-06-16 Draper, Inc. Projection screen system
CN113160618B (zh) * 2021-02-28 2022-11-01 陕西易视通达科技有限公司 一种多媒体教学设备

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06235975A (ja) * 1993-02-09 1994-08-23 Sony Corp 映像投射用スクリーン及びプロジェクタ装置
JPH10239776A (ja) * 1997-02-27 1998-09-11 Iistone:Kk 映写装置用のスクリーン装置
JP2002333672A (ja) * 2001-05-10 2002-11-22 Masahiro Tsubouchi 映像投影用ロールスクリーン
JP2009122177A (ja) * 2007-11-12 2009-06-04 Sakawa:Kk スクリーン装置

Also Published As

Publication number Publication date
FR2952445A1 (fr) 2011-05-13
EP2322991A1 (fr) 2011-05-18

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20150731