FR1137009A - Improvements to projection screens - Google Patents

Improvements to projection screens

Info

Publication number
FR1137009A
FR1137009A FR1137009DA FR1137009A FR 1137009 A FR1137009 A FR 1137009A FR 1137009D A FR1137009D A FR 1137009DA FR 1137009 A FR1137009 A FR 1137009A
Authority
FR
France
Prior art keywords
projection screens
screens
projection
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
Jean Vivie
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 FR1137009A publication Critical patent/FR1137009A/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR1137009D 1955-11-21 1955-11-21 Improvements to projection screens Expired FR1137009A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1137009T 1955-11-21

Publications (1)

Publication Number Publication Date
FR1137009A true FR1137009A (en) 1957-05-22

Family

ID=9640495

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1137009D Expired FR1137009A (en) 1955-11-21 1955-11-21 Improvements to projection screens

Country Status (1)

Country Link
FR (1) FR1137009A (en)

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