FR1092573A - Cadre pour écran de projection - Google Patents

Cadre pour écran de projection

Info

Publication number
FR1092573A
FR1092573A FR1092573DA FR1092573A FR 1092573 A FR1092573 A FR 1092573A FR 1092573D A FR1092573D A FR 1092573DA FR 1092573 A FR1092573 A FR 1092573A
Authority
FR
France
Prior art keywords
projection screen
screen frame
projection
frame
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
Henri Perpere
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 FR1092573A publication Critical patent/FR1092573A/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
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G03B21/58—Projection screens collapsible, e.g. foldable; of variable area

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR1092573D 1953-10-30 1953-10-30 Cadre pour écran de projection Expired FR1092573A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1092573T 1953-10-30

Publications (1)

Publication Number Publication Date
FR1092573A true FR1092573A (fr) 1955-04-22

Family

ID=9616122

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1092573D Expired FR1092573A (fr) 1953-10-30 1953-10-30 Cadre pour écran de projection

Country Status (1)

Country Link
FR (1) FR1092573A (fr)

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