CA1046317A - Microform reader with viewing screen - Google Patents

Microform reader with viewing screen

Info

Publication number
CA1046317A
CA1046317A CA248,009A CA248009A CA1046317A CA 1046317 A CA1046317 A CA 1046317A CA 248009 A CA248009 A CA 248009A CA 1046317 A CA1046317 A CA 1046317A
Authority
CA
Canada
Prior art keywords
mirror
lens
assembly
accordance
axis
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
CA248,009A
Other languages
English (en)
French (fr)
Other versions
CA248009S (en
Inventor
Roger A. Gross
Marvin D. Radloff
Donald D. Gault
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.)
Bell and Howell Co
Original Assignee
Bell and 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 and Howell Co filed Critical Bell and Howell Co
Application granted granted Critical
Publication of CA1046317A publication Critical patent/CA1046317A/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
    • G03B21/10—Projectors with built-in or built-on screen
    • G03B21/11—Projectors with built-in or built-on screen for microfilm reading

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)
CA248,009A 1975-03-31 1976-03-16 Microform reader with viewing screen Expired CA1046317A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/563,949 US4050799A (en) 1975-03-31 1975-03-31 Microform reader

Publications (1)

Publication Number Publication Date
CA1046317A true CA1046317A (en) 1979-01-16

Family

ID=24252563

Family Applications (1)

Application Number Title Priority Date Filing Date
CA248,009A Expired CA1046317A (en) 1975-03-31 1976-03-16 Microform reader with viewing screen

Country Status (6)

Country Link
US (1) US4050799A (online.php)
CA (1) CA1046317A (online.php)
DE (1) DE2612732C2 (online.php)
FR (1) FR2306460A1 (online.php)
GB (1) GB1537304A (online.php)
ZA (1) ZA761610B (online.php)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4339181A (en) * 1980-03-04 1982-07-13 Datagraphix, Inc. Lens arrangements for microfiche reader assembly and method
US5880894A (en) * 1997-07-23 1999-03-09 Blakley; Rick D. Method and system for mounting optical elements

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2137286A (en) * 1936-05-26 1938-11-22 Signaphone Corp Of America Reflector
DE840928C (de) * 1942-03-26 1952-06-09 Thomson Houston Comp Francaise Vorrichtung zum Halten und Fuehren von Filmen in Form von Rollen oder einzelnen oderzu kleinen Stapeln vereinigten Baendern beschraenkter Laenge in einem Filmbetrachtungs- oder Filmprojektionsgeraet
FR1165843A (fr) * 1955-10-10 1958-10-29 Realisations Tech Soc Et Projecteur perfectionné pour appareil de lecture des microfilms et autres documents
US3296924A (en) * 1965-02-23 1967-01-10 Bell & Howell Co Single cell image plane position appraisal system for a slide projector
US3588230A (en) * 1969-01-13 1971-06-28 Us Navy Adjustable lens mount
BE755081A (fr) * 1969-08-21 1971-02-01 Ncr Co Appareil lecteur pour micro-films
DE7147718U (de) * 1971-12-18 1972-10-19 Maier A Betrachtungsgeraet fuer roengtenfilme
US3860333A (en) * 1972-03-20 1975-01-14 Realist Microfiche reader
US3879112A (en) * 1973-05-29 1975-04-22 Singer Co Adjustable mirror mount

Also Published As

Publication number Publication date
FR2306460B3 (online.php) 1978-12-22
DE2612732A1 (de) 1976-10-14
FR2306460A1 (fr) 1976-10-29
ZA761610B (en) 1977-03-30
US4050799A (en) 1977-09-27
GB1537304A (en) 1978-12-29
DE2612732C2 (de) 1985-04-18

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