FR1086805A - Dispositif d'écran de projection - Google Patents

Dispositif d'écran de projection

Info

Publication number
FR1086805A
FR1086805A FR1086805DA FR1086805A FR 1086805 A FR1086805 A FR 1086805A FR 1086805D A FR1086805D A FR 1086805DA FR 1086805 A FR1086805 A FR 1086805A
Authority
FR
France
Prior art keywords
projection screen
screen device
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
English (en)
Inventor
Andre-Victor-Leon-Cl Debrie
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 FR1086805A publication Critical patent/FR1086805A/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
    • G03B21/13—Projectors for producing special effects at the edges of picture, e.g. blurring

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR1086805D 1953-06-09 1953-06-09 Dispositif d'écran de projection Expired FR1086805A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1086805T 1953-06-09

Publications (1)

Publication Number Publication Date
FR1086805A true FR1086805A (fr) 1955-02-16

Family

ID=9612953

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1086805D Expired FR1086805A (fr) 1953-06-09 1953-06-09 Dispositif d'écran de projection

Country Status (1)

Country Link
FR (1) FR1086805A (fr)

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