FR610474A - projection screens - Google Patents

projection screens

Info

Publication number
FR610474A
FR610474A FR610474DA FR610474A FR 610474 A FR610474 A FR 610474A FR 610474D A FR610474D A FR 610474DA FR 610474 A FR610474 A FR 610474A
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
Jules Courtier
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 FR610474A publication Critical patent/FR610474A/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
    • G03B21/606—Projection screens characterised by the nature of the surface for relief projection

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR610474D 1925-05-12 1925-05-12 projection screens Expired FR610474A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR610474T 1925-05-12

Publications (1)

Publication Number Publication Date
FR610474A true FR610474A (en) 1926-09-06

Family

ID=8977426

Family Applications (1)

Application Number Title Priority Date Filing Date
FR610474D Expired FR610474A (en) 1925-05-12 1925-05-12 projection screens

Country Status (1)

Country Link
FR (1) FR610474A (en)

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