DE293976C - - Google Patents

Info

Publication number
DE293976C
DE293976C DENDAT293976D DE293976DA DE293976C DE 293976 C DE293976 C DE 293976C DE NDAT293976 D DENDAT293976 D DE NDAT293976D DE 293976D A DE293976D A DE 293976DA DE 293976 C DE293976 C DE 293976C
Authority
DE
Germany
Prior art keywords
glass
glass plates
projection
backing
plates
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
DENDAT293976D
Other languages
German (de)
English (en)
Publication date
Application granted granted Critical
Publication of DE293976C publication Critical patent/DE293976C/de
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
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G03B21/60—Projection screens characterised by the nature of the surface
    • G03B21/62—Translucent screens

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Overhead Projectors And Projection Screens (AREA)
DENDAT293976D Expired DE293976C (cs)

Publications (1)

Publication Number Publication Date
DE293976C true DE293976C (cs) 1900-01-01

Family

ID=548589

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT293976D Expired DE293976C (cs)

Country Status (1)

Country Link
DE (1) DE293976C (cs)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1117377B (de) * 1955-11-10 1961-11-16 Agfa Ag Lichtdurchlaessiger, im uebrigen diffus reflektierender Schirm fuer fotografische Geraete

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1117377B (de) * 1955-11-10 1961-11-16 Agfa Ag Lichtdurchlaessiger, im uebrigen diffus reflektierender Schirm fuer fotografische Geraete

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