FR54627E - projection screen - Google Patents

projection screen

Info

Publication number
FR54627E
FR54627E FR54627DA FR54627E FR 54627 E FR54627 E FR 54627E FR 54627D A FR54627D A FR 54627DA FR 54627 E FR54627 E FR 54627E
Authority
FR
France
Prior art keywords
projection screen
projection
screen
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
Other languages
French (fr)
Inventor
Julien Saget
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 filed Critical
Application granted granted Critical
Publication of FR54627E publication Critical patent/FR54627E/en
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
    • G03B21/602—Lenticular screens

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR54627D 1944-09-15 1944-09-15 projection screen Expired FR54627E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR54627T 1944-09-15

Publications (1)

Publication Number Publication Date
FR54627E true FR54627E (en) 1950-07-07

Family

ID=8689066

Family Applications (1)

Application Number Title Priority Date Filing Date
FR54627D Expired FR54627E (en) 1944-09-15 1944-09-15 projection screen

Country Status (1)

Country Link
FR (1) FR54627E (en)

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