BR7902040A - Aperfeicoamento em uma tela de projecao por detras - Google Patents

Aperfeicoamento em uma tela de projecao por detras

Info

Publication number
BR7902040A
BR7902040A BR7902040A BR7902040A BR7902040A BR 7902040 A BR7902040 A BR 7902040A BR 7902040 A BR7902040 A BR 7902040A BR 7902040 A BR7902040 A BR 7902040A BR 7902040 A BR7902040 A BR 7902040A
Authority
BR
Brazil
Prior art keywords
detras
improvement
projection screen
projection
screen
Prior art date
Application number
BR7902040A
Other languages
English (en)
Inventor
M Brown
Original Assignee
Freen Ltd
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 Freen Ltd filed Critical Freen Ltd
Publication of BR7902040A publication Critical patent/BR7902040A/pt

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
    • 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
    • G03B21/602—Lenticular screens

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Overhead Projectors And Projection Screens (AREA)
BR7902040A 1978-04-05 1979-04-04 Aperfeicoamento em uma tela de projecao por detras BR7902040A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA300493 1978-04-05

Publications (1)

Publication Number Publication Date
BR7902040A true BR7902040A (pt) 1979-11-27

Family

ID=4111160

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7902040A BR7902040A (pt) 1978-04-05 1979-04-04 Aperfeicoamento em uma tela de projecao por detras

Country Status (9)

Country Link
JP (1) JPS54134431A (pt)
AU (1) AU4548479A (pt)
BE (1) BE875231A (pt)
BR (1) BR7902040A (pt)
DE (1) DE2912719A1 (pt)
FR (1) FR2422185A1 (pt)
GB (1) GB2022861A (pt)
IT (1) IT1162620B (pt)
NL (1) NL7902173A (pt)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5923334A (ja) * 1982-07-29 1984-02-06 Victor Co Of Japan Ltd 透過式スクリ−ン
JPS5960643U (ja) * 1982-10-15 1984-04-20 大日本印刷株式会社 レンチキユラ−レンズシ−ト
JPS59121034A (ja) * 1982-12-27 1984-07-12 Mitsubishi Rayon Co Ltd 透過型スクリ−ン
NL8503526A (nl) * 1985-12-20 1987-07-16 Philips Nv Doorzichtprojektiescherm.
US4927233A (en) * 1989-03-06 1990-05-22 Mitsubishi Rayon Co., Ltd. Rear projection screen
US5760955A (en) * 1995-04-06 1998-06-02 Philips Electronics North America Corporation Rear projection screen with reduced speckle
JPH0926624A (ja) * 1996-04-26 1997-01-28 Hitachi Ltd 投写用スクリーン
US20060061861A1 (en) * 2004-09-23 2006-03-23 Reflexite Corporation High performance rear-projection screen
US8000006B2 (en) 2009-07-02 2011-08-16 Morgan Adhesives Company Rear-projection screen

Also Published As

Publication number Publication date
JPS54134431A (en) 1979-10-18
AU4548479A (en) 1979-10-18
DE2912719A1 (de) 1979-10-11
IT7948519A0 (it) 1979-03-28
BE875231A (fr) 1979-07-16
GB2022861A (en) 1979-12-19
NL7902173A (nl) 1979-10-09
FR2422185A1 (fr) 1979-11-02
IT1162620B (it) 1987-04-01

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