FR471425A - Projection screen for cinematographs or other devices - Google Patents

Projection screen for cinematographs or other devices

Info

Publication number
FR471425A
FR471425A FR471425A FR471425DA FR471425A FR 471425 A FR471425 A FR 471425A FR 471425 A FR471425 A FR 471425A FR 471425D A FR471425D A FR 471425DA FR 471425 A FR471425 A FR 471425A
Authority
FR
France
Prior art keywords
cinematographs
devices
projection screen
projection
screen
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
FR471425A
Other languages
French (fr)
Inventor
Harry Williams Charlton
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR471425A publication Critical patent/FR471425A/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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR471425A 1913-09-13 1914-04-28 Projection screen for cinematographs or other devices Expired FR471425A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US471425XA 1913-09-13 1913-09-13

Publications (1)

Publication Number Publication Date
FR471425A true FR471425A (en) 1914-10-26

Family

ID=1509688

Family Applications (1)

Application Number Title Priority Date Filing Date
FR471425A Expired FR471425A (en) 1913-09-13 1914-04-28 Projection screen for cinematographs or other devices

Country Status (1)

Country Link
FR (1) FR471425A (en)

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