FR980402A - transparency projection screen - Google Patents

transparency projection screen

Info

Publication number
FR980402A
FR980402A FR980402DA FR980402A FR 980402 A FR980402 A FR 980402A FR 980402D A FR980402D A FR 980402DA FR 980402 A FR980402 A FR 980402A
Authority
FR
France
Prior art keywords
projection screen
transparency projection
transparency
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
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.)
Kodak Pathe SA
Original Assignee
Kodak Pathe SA
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 Kodak Pathe SA filed Critical Kodak Pathe SA
Application granted granted Critical
Publication of FR980402A publication Critical patent/FR980402A/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)
FR980402D 1947-11-22 1948-11-22 transparency projection screen Expired FR980402A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US980402XA 1947-11-22 1947-11-22

Publications (1)

Publication Number Publication Date
FR980402A true FR980402A (en) 1951-05-11

Family

ID=22266497

Family Applications (1)

Application Number Title Priority Date Filing Date
FR980402D Expired FR980402A (en) 1947-11-22 1948-11-22 transparency projection screen

Country Status (1)

Country Link
FR (1) FR980402A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2793043A1 (en) * 1999-04-29 2000-11-03 Synelec Sa PROJECTION SCREEN
FR2793042A1 (en) * 1999-04-29 2000-11-03 Synelec Sa Rear projection screen, has support with micro-lenses and adjacent opaque layer with holes aligned with focal points of lenses

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2793043A1 (en) * 1999-04-29 2000-11-03 Synelec Sa PROJECTION SCREEN
FR2793042A1 (en) * 1999-04-29 2000-11-03 Synelec Sa Rear projection screen, has support with micro-lenses and adjacent opaque layer with holes aligned with focal points of lenses
WO2000067071A1 (en) * 1999-04-29 2000-11-09 Synelec Telecom Multimedia Projection screen
US6829086B1 (en) 1999-04-29 2004-12-07 Synelec Telecom Multimedia Projection screen

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