CH622624A5 - - Google Patents

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Publication number
CH622624A5
CH622624A5 CH1357877A CH1357877A CH622624A5 CH 622624 A5 CH622624 A5 CH 622624A5 CH 1357877 A CH1357877 A CH 1357877A CH 1357877 A CH1357877 A CH 1357877A CH 622624 A5 CH622624 A5 CH 622624A5
Authority
CH
Switzerland
Prior art keywords
housing
lens
glass plate
carrier
projector according
Prior art date
Application number
CH1357877A
Other languages
German (de)
English (en)
Inventor
John W Overman
George V Johnson
Original Assignee
Bell & Howell Co
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 Bell & Howell Co filed Critical Bell & Howell Co
Publication of CH622624A5 publication Critical patent/CH622624A5/de

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
    • G03B21/11—Projectors with built-in or built-on screen for microfilm reading
    • G03B21/115—Projectors with built-in or built-on screen for microfilm reading of microfiches

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)
CH1357877A 1976-11-11 1977-11-08 CH622624A5 (cs)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/741,007 US4130352A (en) 1976-11-11 1976-11-11 Portable microfiche reader with foldup lens and mirror assembly

Publications (1)

Publication Number Publication Date
CH622624A5 true CH622624A5 (cs) 1981-04-15

Family

ID=24978984

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1357877A CH622624A5 (cs) 1976-11-11 1977-11-08

Country Status (6)

Country Link
US (1) US4130352A (cs)
CA (1) CA1097960A (cs)
CH (1) CH622624A5 (cs)
DE (1) DE2749451A1 (cs)
GB (1) GB1537646A (cs)
ZA (1) ZA776442B (cs)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2656445B1 (fr) * 1989-12-22 1992-03-20 Savema Sa Lecteur de microfiches portatif.
US6568814B2 (en) 1999-03-03 2003-05-27 3M Innovative Properties Company Integrated front projection system with shaped imager and associated method
US6179426B1 (en) * 1999-03-03 2001-01-30 3M Innovative Properties Company Integrated front projection system
US6520646B2 (en) 1999-03-03 2003-02-18 3M Innovative Properties Company Integrated front projection system with distortion correction and associated method
US6530664B2 (en) 1999-03-03 2003-03-11 3M Innovative Properties Company Integrated front projection system with enhanced dry erase screen configuration
US7777946B2 (en) * 2007-02-22 2010-08-17 Hae-Yong Choi Bag type portable screen device
GB2588190A (en) * 2019-10-14 2021-04-21 Oxti Corp Carrying bag with a projector
FR3110825B1 (fr) * 2020-05-28 2022-05-27 Pa Cotte Sa Bagage comprenant un système de vidéo-projection

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB750319A (en) * 1953-05-04 1956-06-13 Williamson Mfg Company Ltd Improvements in and relating to optical projecting apparatus
FR1102999A (fr) * 1954-03-24 1955-10-27 Etoile Film Visionneuse perfectionnée pour vues photographiques
US2847902A (en) * 1954-12-03 1958-08-19 Ferrania Spa Portable projection apparatus for diapositives and microfilms
US3743399A (en) * 1971-07-21 1973-07-03 Ncr Microform reader cover plate opening mechanism
US3836242A (en) * 1973-04-09 1974-09-17 Northwest Microfilm Inc Micro fiche mounting carriage for film reader

Also Published As

Publication number Publication date
CA1097960A (en) 1981-03-24
DE2749451A1 (de) 1978-05-24
US4130352A (en) 1978-12-19
GB1537646A (en) 1979-01-04
ZA776442B (en) 1978-08-30

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Legal Events

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