FR854349A - Projection screen manufacturing process - Google Patents

Projection screen manufacturing process

Info

Publication number
FR854349A
FR854349A FR854349DA FR854349A FR 854349 A FR854349 A FR 854349A FR 854349D A FR854349D A FR 854349DA FR 854349 A FR854349 A FR 854349A
Authority
FR
France
Prior art keywords
manufacturing process
projection screen
screen manufacturing
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)
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.)
Robert Bosch Fernsehanlagen GmbH
Original Assignee
Fernseh GmbH
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 Fernseh GmbH filed Critical Fernseh GmbH
Application granted granted Critical
Publication of FR854349A publication Critical patent/FR854349A/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
    • G03B21/62—Translucent screens
    • G03B21/625—Lenticular translucent screens

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR854349D 1938-05-06 1939-05-06 Projection screen manufacturing process Expired FR854349A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE854349X 1938-05-06

Publications (1)

Publication Number Publication Date
FR854349A true FR854349A (en) 1940-04-10

Family

ID=6788833

Family Applications (1)

Application Number Title Priority Date Filing Date
FR854349D Expired FR854349A (en) 1938-05-06 1939-05-06 Projection screen manufacturing process

Country Status (1)

Country Link
FR (1) FR854349A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2616178A (en) * 1947-06-18 1952-11-04 Hartford Nat Bank & Trust Co Device for manufacturing fresnel surfaces

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2616178A (en) * 1947-06-18 1952-11-04 Hartford Nat Bank & Trust Co Device for manufacturing fresnel surfaces

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