DE343972C - - Google Patents

Info

Publication number
DE343972C
DE343972C DENDAT343972D DE343972DA DE343972C DE 343972 C DE343972 C DE 343972C DE NDAT343972 D DENDAT343972 D DE NDAT343972D DE 343972D A DE343972D A DE 343972DA DE 343972 C DE343972 C DE 343972C
Authority
DE
Germany
Prior art keywords
projection
tips
projection screen
daylight
reflective coating
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
DENDAT343972D
Other languages
German (de)
English (en)
Publication date
Application granted granted Critical
Publication of DE343972C publication Critical patent/DE343972C/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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Overhead Projectors And Projection Screens (AREA)
DENDAT343972D Expired DE343972C (show.php)

Publications (1)

Publication Number Publication Date
DE343972C true DE343972C (show.php) 1900-01-01

Family

ID=573022

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT343972D Expired DE343972C (show.php)

Country Status (1)

Country Link
DE (1) DE343972C (show.php)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1054733B (de) * 1955-07-07 1959-04-09 Walter Hesse Dipl Ing Dr Techn Reflex-Projektionsschirm, insbesondere fuer erhellte Raeume

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1054733B (de) * 1955-07-07 1959-04-09 Walter Hesse Dipl Ing Dr Techn Reflex-Projektionsschirm, insbesondere fuer erhellte Raeume

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