FR970423A - Projection device, applicable to television receivers - Google Patents

Projection device, applicable to television receivers

Info

Publication number
FR970423A
FR970423A FR970423DA FR970423A FR 970423 A FR970423 A FR 970423A FR 970423D A FR970423D A FR 970423DA FR 970423 A FR970423 A FR 970423A
Authority
FR
France
Prior art keywords
applicable
projection device
television receivers
receivers
television
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR970423A publication Critical patent/FR970423A/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)
FR970423D 1947-08-21 1948-08-19 Projection device, applicable to television receivers Expired FR970423A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL970423X 1947-08-21

Publications (1)

Publication Number Publication Date
FR970423A true FR970423A (en) 1951-01-04

Family

ID=19866240

Family Applications (1)

Application Number Title Priority Date Filing Date
FR970423D Expired FR970423A (en) 1947-08-21 1948-08-19 Projection device, applicable to television receivers

Country Status (1)

Country Link
FR (1) FR970423A (en)

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