FR947629A - écran pour projections lumineuses - Google Patents

écran pour projections lumineuses

Info

Publication number
FR947629A
FR947629A FR947629DA FR947629A FR 947629 A FR947629 A FR 947629A FR 947629D A FR947629D A FR 947629DA FR 947629 A FR947629 A FR 947629A
Authority
FR
France
Prior art keywords
projection screen
light projection
light
screen
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
English (en)
Inventor
Maurice Fernez
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 FR947629A publication Critical patent/FR947629A/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
    • G03B21/60—Projection screens characterised by the nature of the surface

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR947629D 1947-05-19 1947-05-19 écran pour projections lumineuses Expired FR947629A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR947629T 1947-05-19

Publications (1)

Publication Number Publication Date
FR947629A true FR947629A (fr) 1949-07-07

Family

ID=9473542

Family Applications (1)

Application Number Title Priority Date Filing Date
FR947629D Expired FR947629A (fr) 1947-05-19 1947-05-19 écran pour projections lumineuses

Country Status (1)

Country Link
FR (1) FR947629A (fr)

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