FR826774A - Projection screen production process - Google Patents

Projection screen production process

Info

Publication number
FR826774A
FR826774A FR826774DA FR826774A FR 826774 A FR826774 A FR 826774A FR 826774D A FR826774D A FR 826774DA FR 826774 A FR826774 A FR 826774A
Authority
FR
France
Prior art keywords
production process
projection screen
screen production
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
Other languages
French (fr)
Inventor
Gustav Kogel
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 FR826774A publication Critical patent/FR826774A/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)
FR826774D 1936-11-10 1937-09-15 Projection screen production process Expired FR826774A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE826774X 1936-11-10

Publications (1)

Publication Number Publication Date
FR826774A true FR826774A (en) 1938-04-08

Family

ID=6747845

Family Applications (1)

Application Number Title Priority Date Filing Date
FR826774D Expired FR826774A (en) 1936-11-10 1937-09-15 Projection screen production process

Country Status (1)

Country Link
FR (1) FR826774A (en)

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