FR944685A - écran pour projections cinématographiques - Google Patents

écran pour projections cinématographiques

Info

Publication number
FR944685A
FR944685A FR944685DA FR944685A FR 944685 A FR944685 A FR 944685A FR 944685D A FR944685D A FR 944685DA FR 944685 A FR944685 A FR 944685A
Authority
FR
France
Prior art keywords
screen
cinematographic
projections
cinematographic projections
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)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MAROCAINE DE CONST MECANIQUES
Original Assignee
MAROCAINE DE CONST MECANIQUES
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 by MAROCAINE DE CONST MECANIQUES filed Critical MAROCAINE DE CONST MECANIQUES
Application granted granted Critical
Publication of FR944685A publication Critical patent/FR944685A/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
    • G03B21/606—Projection screens characterised by the nature of the surface for relief projection

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR944685D 1947-04-03 1947-04-03 écran pour projections cinématographiques Expired FR944685A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR944685T 1947-04-03

Publications (1)

Publication Number Publication Date
FR944685A true FR944685A (fr) 1949-04-12

Family

ID=9471871

Family Applications (1)

Application Number Title Priority Date Filing Date
FR944685D Expired FR944685A (fr) 1947-04-03 1947-04-03 écran pour projections cinématographiques

Country Status (1)

Country Link
FR (1) FR944685A (fr)

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