FR2539886B1 - Appareil de projection de diapositives a faisceau lumineux sureleve - Google Patents

Appareil de projection de diapositives a faisceau lumineux sureleve

Info

Publication number
FR2539886B1
FR2539886B1 FR8400885A FR8400885A FR2539886B1 FR 2539886 B1 FR2539886 B1 FR 2539886B1 FR 8400885 A FR8400885 A FR 8400885A FR 8400885 A FR8400885 A FR 8400885A FR 2539886 B1 FR2539886 B1 FR 2539886B1
Authority
FR
France
Prior art keywords
light beam
projecting slides
slides
projecting
light
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
Application number
FR8400885A
Other languages
English (en)
Other versions
FR2539886A1 (fr
Inventor
Jesper Munk Laursen
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.)
Memofax AS
Original Assignee
Memofax AS
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 Memofax AS filed Critical Memofax AS
Publication of FR2539886A1 publication Critical patent/FR2539886A1/fr
Application granted granted Critical
Publication of FR2539886B1 publication Critical patent/FR2539886B1/fr
Expired 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
    • G03B21/132—Overhead projectors, i.e. capable of projecting hand-writing or drawing during action

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)
  • Overhead Projectors And Projection Screens (AREA)
FR8400885A 1983-01-21 1984-01-20 Appareil de projection de diapositives a faisceau lumineux sureleve Expired FR2539886B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK24283A DK24283A (da) 1983-01-21 1983-01-21 Overheadprojektor

Publications (2)

Publication Number Publication Date
FR2539886A1 FR2539886A1 (fr) 1984-07-27
FR2539886B1 true FR2539886B1 (fr) 1988-09-23

Family

ID=8091339

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8400885A Expired FR2539886B1 (fr) 1983-01-21 1984-01-20 Appareil de projection de diapositives a faisceau lumineux sureleve

Country Status (4)

Country Link
DE (1) DE3401709A1 (fr)
DK (1) DK24283A (fr)
FR (1) FR2539886B1 (fr)
GB (1) GB2134279B (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4728184A (en) * 1987-05-26 1988-03-01 Buhl Industries, Inc. Foldable transparency enlarger for overhead projector

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3482911A (en) * 1967-03-20 1969-12-09 William A Noble Image projection apparatus
DE1961215B2 (de) * 1969-12-05 1972-03-16 Kindermann & Co GmbH, 8703 Ochsen fürt Schreibprojektor mit einer einrichtung zur projektion von dias und filmstreifen
DE7018612U (de) * 1970-05-20 1970-12-10 Klaus W Reiser & Co Projektionsgeraet.
DE7231583U (de) * 1972-08-23 1973-01-04 Ritzerfeld G Schreibprojektor

Also Published As

Publication number Publication date
GB2134279A (en) 1984-08-08
FR2539886A1 (fr) 1984-07-27
DE3401709A1 (de) 1984-07-26
DK24283A (da) 1984-07-22
GB8401196D0 (en) 1984-02-22
DK24283D0 (da) 1983-01-21
GB2134279B (en) 1986-07-09

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Legal Events

Date Code Title Description
ST Notification of lapse