FR2151328A5 - - Google Patents

Info

Publication number
FR2151328A5
FR2151328A5 FR7229808A FR7229808A FR2151328A5 FR 2151328 A5 FR2151328 A5 FR 2151328A5 FR 7229808 A FR7229808 A FR 7229808A FR 7229808 A FR7229808 A FR 7229808A FR 2151328 A5 FR2151328 A5 FR 2151328A5
Authority
FR
France
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
FR7229808A
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.)
Polaroid Corp
Original Assignee
Polaroid Corp
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 Polaroid Corp filed Critical Polaroid Corp
Application granted granted Critical
Publication of FR2151328A5 publication Critical patent/FR2151328A5/fr
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
    • 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
    • G03B21/10—Projectors with built-in or built-on screen

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)
  • Overhead Projectors And Projection Screens (AREA)
FR7229808A 1971-08-24 1972-08-21 Expired FR2151328A5 (enExample)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US17446171A 1971-08-24 1971-08-24
US17437371A 1971-08-24 1971-08-24

Publications (1)

Publication Number Publication Date
FR2151328A5 true FR2151328A5 (enExample) 1973-04-13

Family

ID=26870149

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7229808A Expired FR2151328A5 (enExample) 1971-08-24 1972-08-21

Country Status (5)

Country Link
JP (1) JPS4830929A (enExample)
DE (1) DE2238466A1 (enExample)
FR (1) FR2151328A5 (enExample)
GB (1) GB1366416A (enExample)
IT (1) IT962203B (enExample)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2375618A1 (fr) * 1976-12-23 1978-07-21 Polaroid Corp Ecran de visionnement arriere pour dispositif de projection
FR2415821A1 (fr) * 1978-01-30 1979-08-24 Gaf Corp Visionneuse portative pour films cinematographiques
FR2517083A1 (fr) * 1981-11-26 1983-05-27 Sony Corp Appareil de retroprojection
WO1983002170A1 (fr) * 1981-12-18 1983-06-23 Jochen Homann Installation pour publicite et/ou information
EP0233662A1 (en) * 1986-01-28 1987-08-26 Koninklijke Philips Electronics N.V. Rear-projection system

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6347866Y2 (enExample) * 1980-02-08 1988-12-09
JPS5846336A (ja) * 1981-09-14 1983-03-17 Mitsubishi Rayon Co Ltd 透過型スクリ−ン
JPS5865427A (ja) * 1981-10-14 1983-04-19 Matsushita Electric Ind Co Ltd スクリ−ン
JPS5923334A (ja) * 1982-07-29 1984-02-06 Victor Co Of Japan Ltd 透過式スクリ−ン
JPS5995525A (ja) * 1982-11-24 1984-06-01 Mitsubishi Rayon Co Ltd 背面投影スクリ−ン
US5311910A (en) * 1991-02-20 1994-05-17 Kabushiki Kaisha Showa Seisakusho Cap attachment structure for accumulator

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2375618A1 (fr) * 1976-12-23 1978-07-21 Polaroid Corp Ecran de visionnement arriere pour dispositif de projection
FR2415821A1 (fr) * 1978-01-30 1979-08-24 Gaf Corp Visionneuse portative pour films cinematographiques
FR2517083A1 (fr) * 1981-11-26 1983-05-27 Sony Corp Appareil de retroprojection
WO1983002170A1 (fr) * 1981-12-18 1983-06-23 Jochen Homann Installation pour publicite et/ou information
EP0082478A1 (de) * 1981-12-18 1983-06-29 Jochen Homann Vorrichtung für Werbe- und/oder Informationszwecke
EP0233662A1 (en) * 1986-01-28 1987-08-26 Koninklijke Philips Electronics N.V. Rear-projection system

Also Published As

Publication number Publication date
IT962203B (it) 1973-12-20
GB1366416A (en) 1974-09-11
JPS4830929A (enExample) 1973-04-23
DE2238466A1 (de) 1973-03-08

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Legal Events

Date Code Title Description
ST Notification of lapse