FR2785398B1 - Tableau mural et/ou ecran de projection - Google Patents

Tableau mural et/ou ecran de projection

Info

Publication number
FR2785398B1
FR2785398B1 FR9912901A FR9912901A FR2785398B1 FR 2785398 B1 FR2785398 B1 FR 2785398B1 FR 9912901 A FR9912901 A FR 9912901A FR 9912901 A FR9912901 A FR 9912901A FR 2785398 B1 FR2785398 B1 FR 2785398B1
Authority
FR
France
Prior art keywords
wall panel
projection screen
projection
screen
panel
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
FR9912901A
Other languages
English (en)
Other versions
FR2785398A1 (fr
Inventor
Andreas Murr
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.)
Steelcase AG
Original Assignee
Werndl Bueromobel AG
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 Werndl Bueromobel AG filed Critical Werndl Bueromobel AG
Publication of FR2785398A1 publication Critical patent/FR2785398A1/fr
Application granted granted Critical
Publication of FR2785398B1 publication Critical patent/FR2785398B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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)
  • Drawing Aids And Blackboards (AREA)
FR9912901A 1998-10-16 1999-10-15 Tableau mural et/ou ecran de projection Expired - Fee Related FR2785398B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19847846A DE19847846C1 (de) 1998-10-16 1998-10-16 Wand- und/oder Projektionstafel

Publications (2)

Publication Number Publication Date
FR2785398A1 FR2785398A1 (fr) 2000-05-05
FR2785398B1 true FR2785398B1 (fr) 2001-04-27

Family

ID=7884754

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9912901A Expired - Fee Related FR2785398B1 (fr) 1998-10-16 1999-10-15 Tableau mural et/ou ecran de projection

Country Status (4)

Country Link
US (1) US6304377B1 (fr)
DE (1) DE19847846C1 (fr)
FR (1) FR2785398B1 (fr)
GB (1) GB2346590B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7238027B2 (en) * 2004-07-20 2007-07-03 Cardiac Pacemakers, Inc. Device functionality representation tool
US8253868B2 (en) * 2007-11-29 2012-08-28 Texas Instruments Incorporated Apparatus and method for using voice coils as screen motion sensors
US9718299B2 (en) * 2015-12-29 2017-08-01 Clarus Glassboards, Llc Flippable board method and system
CN110456604A (zh) * 2019-07-23 2019-11-15 刘婷婷 一种数字化虚拟成像设备
CN111806121A (zh) * 2020-03-19 2020-10-23 同济大学 一种智能自擦黑板装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2825152A (en) * 1954-10-18 1958-03-04 Charles A Baylon Wall-mounted information display panel structure
US2894576A (en) * 1957-06-03 1959-07-14 Williams Albert Adjustable glare shields and mirror attachments for automobile visors
FR1272106A (fr) * 1960-08-09 1961-09-22 Perfectionnements aux tableaux d'enseignement
US4226037A (en) * 1979-01-02 1980-10-07 Robert Rodriguez Wall display device
FR2561890B1 (fr) * 1984-04-03 1987-08-07 Charbonnages De France Support de panneau pivotant a deux faces utiles substituables
CH685913A5 (de) * 1992-04-10 1995-11-15 Hunziker G Ag Wandtafelsystem.
CH685407A5 (de) * 1993-06-18 1995-06-30 Anton Dehner Einheit mit einem schwenkbaren Wandelement, insbesondere für eine Leinwand.
DE4437113A1 (de) * 1994-10-18 1996-04-25 Holzaepfel Christian Gmbh Medienwand

Also Published As

Publication number Publication date
GB9923702D0 (en) 1999-12-08
GB2346590A (en) 2000-08-16
FR2785398A1 (fr) 2000-05-05
GB2346590B (en) 2002-05-22
US6304377B1 (en) 2001-10-16
DE19847846C1 (de) 2000-05-18

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20130628