FR2300352B1 - - Google Patents

Info

Publication number
FR2300352B1
FR2300352B1 FR7603174A FR7603174A FR2300352B1 FR 2300352 B1 FR2300352 B1 FR 2300352B1 FR 7603174 A FR7603174 A FR 7603174A FR 7603174 A FR7603174 A FR 7603174A FR 2300352 B1 FR2300352 B1 FR 2300352B1
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
FR7603174A
Other languages
French (fr)
Other versions
FR2300352A1 (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.)
VREDEBORCH GmbH
Original Assignee
VREDEBORCH 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 VREDEBORCH GmbH filed Critical VREDEBORCH GmbH
Publication of FR2300352A1 publication Critical patent/FR2300352A1/fr
Application granted granted Critical
Publication of FR2300352B1 publication Critical patent/FR2300352B1/fr
Granted 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
    • G03B21/10—Projectors with built-in or built-on screen
    • 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
    • G03B41/00—Special techniques not covered by groups G03B31/00 - G03B39/00; Apparatus therefor
    • G03B41/02—Special techniques not covered by groups G03B31/00 - G03B39/00; Apparatus therefor using non-intermittently running film
    • G03B41/04—Special techniques not covered by groups G03B31/00 - G03B39/00; Apparatus therefor using non-intermittently running film with optical compensator
    • G03B41/08—Special techniques not covered by groups G03B31/00 - G03B39/00; Apparatus therefor using non-intermittently running film with optical compensator with rotating transmitting member

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Overhead Projectors And Projection Screens (AREA)
FR7603174A 1975-02-06 1976-02-05 Appareil pour l'examen de films reduits Granted FR2300352A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752504913 DE2504913C3 (de) 1975-02-06 1975-02-06 Vorrichtung zum Betrachten von Schmalfilmen

Publications (2)

Publication Number Publication Date
FR2300352A1 FR2300352A1 (fr) 1976-09-03
FR2300352B1 true FR2300352B1 (enExample) 1980-04-25

Family

ID=5938204

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7603174A Granted FR2300352A1 (fr) 1975-02-06 1976-02-05 Appareil pour l'examen de films reduits

Country Status (6)

Country Link
JP (1) JPS51106435A (enExample)
DE (1) DE2504913C3 (enExample)
ES (1) ES444923A1 (enExample)
FR (1) FR2300352A1 (enExample)
IE (1) IE43781B1 (enExample)
IT (1) IT1056609B (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4561740A (en) * 1984-06-06 1985-12-31 Minnesota Mining And Manufacturing Company Dual-magnification rear projection lectern
CN1802602A (zh) * 2003-06-12 2006-07-12 皇家飞利浦电子股份有限公司 用于将图像投射到不同投影面的设备

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2729141A (en) * 1953-05-11 1956-01-03 Joseph B Walker Image superimposition projection devices
US3178996A (en) * 1961-02-10 1965-04-20 Evan J Anton Optical projection system with negative diopter magnifying lens
US3834798A (en) * 1972-12-20 1974-09-10 W Goddard Viewing screen for motion picture projectors

Also Published As

Publication number Publication date
ES444923A1 (es) 1977-05-01
DE2504913B2 (de) 1980-06-26
IT1056609B (it) 1982-02-20
DE2504913C3 (de) 1981-03-12
FR2300352A1 (fr) 1976-09-03
DE2504913A1 (de) 1976-08-19
IE43781B1 (en) 1981-05-20
JPS51106435A (ja) 1976-09-21
IE43781L (en) 1976-08-06

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Legal Events

Date Code Title Description
ST Notification of lapse