FR606912A - écran perfectionné de projection - Google Patents

écran perfectionné de projection

Info

Publication number
FR606912A
FR606912A FR606912DA FR606912A FR 606912 A FR606912 A FR 606912A FR 606912D A FR606912D A FR 606912DA FR 606912 A FR606912 A FR 606912A
Authority
FR
France
Prior art keywords
projection screen
advanced projection
advanced
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
Jean Brizon
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 FR606912A publication Critical patent/FR606912A/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
    • 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)
FR606912D 1925-03-04 1925-03-04 écran perfectionné de projection Expired FR606912A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR606912T 1925-03-04

Publications (1)

Publication Number Publication Date
FR606912A true FR606912A (fr) 1926-06-23

Family

ID=8975006

Family Applications (1)

Application Number Title Priority Date Filing Date
FR606912D Expired FR606912A (fr) 1925-03-04 1925-03-04 écran perfectionné de projection

Country Status (1)

Country Link
FR (1) FR606912A (fr)

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