NL7707717A - Lichtbeeldprojektiescherm. - Google Patents

Lichtbeeldprojektiescherm.

Info

Publication number
NL7707717A
NL7707717A NL7707717A NL7707717A NL7707717A NL 7707717 A NL7707717 A NL 7707717A NL 7707717 A NL7707717 A NL 7707717A NL 7707717 A NL7707717 A NL 7707717A NL 7707717 A NL7707717 A NL 7707717A
Authority
NL
Netherlands
Prior art keywords
light image
project screen
image project
screen
light
Prior art date
Application number
NL7707717A
Other languages
English (en)
Original Assignee
Mechanische Weberei G M B H
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 Mechanische Weberei G M B H filed Critical Mechanische Weberei G M B H
Publication of NL7707717A publication Critical patent/NL7707717A/nl

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)
  • Overhead Projectors And Projection Screens (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
NL7707717A 1977-04-13 1977-07-11 Lichtbeeldprojektiescherm. NL7707717A (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772716349 DE2716349A1 (de) 1977-04-13 1977-04-13 Lichtbildprojektionswand

Publications (1)

Publication Number Publication Date
NL7707717A true NL7707717A (nl) 1978-10-17

Family

ID=6006204

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7707717A NL7707717A (nl) 1977-04-13 1977-07-11 Lichtbeeldprojektiescherm.

Country Status (5)

Country Link
DE (1) DE2716349A1 (nl)
FR (1) FR2387468A1 (nl)
GB (1) GB1583279A (nl)
IT (1) IT1083799B (nl)
NL (1) NL7707717A (nl)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3115177C1 (de) * 1981-04-15 1982-11-11 Reflecta Gmbh Foto Film Projektion, 8540 Schwabach Lichtbildwand
US5462506A (en) * 1992-09-24 1995-10-31 Joshua Group Ltd. Lateral movement trainer selectively positionable for storage or use

Also Published As

Publication number Publication date
FR2387468A1 (fr) 1978-11-10
DE2716349A1 (de) 1978-10-19
IT1083799B (it) 1985-05-25
GB1583279A (en) 1981-01-21

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Legal Events

Date Code Title Description
BV The patent application has lapsed