IT8149969A0 - Complesso ottico ad ingrandimento variabile in particolare per apparecchi elettrografici a scansione - Google Patents

Complesso ottico ad ingrandimento variabile in particolare per apparecchi elettrografici a scansione

Info

Publication number
IT8149969A0
IT8149969A0 IT8149969A IT4996981A IT8149969A0 IT 8149969 A0 IT8149969 A0 IT 8149969A0 IT 8149969 A IT8149969 A IT 8149969A IT 4996981 A IT4996981 A IT 4996981A IT 8149969 A0 IT8149969 A0 IT 8149969A0
Authority
IT
Italy
Prior art keywords
scanning
variable magnification
magnification optical
optical complex
complex particularly
Prior art date
Application number
IT8149969A
Other languages
English (en)
Other versions
IT1145472B (it
Inventor
Laszlo D Farago
Original Assignee
Minnesota Mining & Mfg
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 Minnesota Mining & Mfg filed Critical Minnesota Mining & Mfg
Publication of IT8149969A0 publication Critical patent/IT8149969A0/it
Application granted granted Critical
Publication of IT1145472B publication Critical patent/IT1145472B/it

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
    • G03G15/041—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material with variable magnification

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Systems Of Projection Type Copiers (AREA)
  • Facsimile Scanning Arrangements (AREA)
IT49969/81A 1980-12-22 1981-12-21 Complesso ottico ad ingrandimento variabile in particolare apparecchi elettrografici a scansione IT1145472B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/218,846 US4338022A (en) 1980-12-22 1980-12-22 Multiple magnification optical assembly

Publications (2)

Publication Number Publication Date
IT8149969A0 true IT8149969A0 (it) 1981-12-21
IT1145472B IT1145472B (it) 1986-11-05

Family

ID=22816735

Family Applications (1)

Application Number Title Priority Date Filing Date
IT49969/81A IT1145472B (it) 1980-12-22 1981-12-21 Complesso ottico ad ingrandimento variabile in particolare apparecchi elettrografici a scansione

Country Status (8)

Country Link
US (1) US4338022A (it)
EP (1) EP0068000A4 (it)
JP (1) JPS57502138A (it)
AU (1) AU542914B2 (it)
BR (1) BR8108931A (it)
CA (1) CA1151917A (it)
IT (1) IT1145472B (it)
WO (1) WO1982002256A1 (it)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57148768A (en) * 1981-03-12 1982-09-14 Konishiroku Photo Ind Co Ltd Optical scan unit driver of electrophotographic copier
US5585937A (en) * 1993-04-21 1996-12-17 Mitsubishi Denki Kabushiki Kaisha Image reading device for percisely moving optical components to provide relatively reduced and magnified images
WO2017075258A1 (en) 2015-10-30 2017-05-04 Seurat Technologies, Inc. Additive manufacturing system and method

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3543289A (en) * 1967-09-29 1970-11-24 Ricoh Kk Variable magnification exposure device for a reproduction apparatus
US3535037A (en) * 1967-09-29 1970-10-20 Ricoh Kk Variable magnification exposure device for a reproduction apparatus
JPS536527B2 (it) * 1971-12-07 1978-03-09
US4029409A (en) * 1975-06-20 1977-06-14 Xerox Corporation Multi-mode optical scanning system
US4110028A (en) * 1975-08-04 1978-08-29 Xerox Corporation Drive system for multi-mode reproducing apparatus
JPS5220837A (en) * 1975-08-09 1977-02-17 Ricoh Co Ltd Variable multiplication type electrophotographic copying machine
US4118118A (en) * 1976-05-07 1978-10-03 Universal Photocopy, Inc. Electrostatic copier machine with selectable magnification ratios
DE2626917C3 (de) * 1976-06-16 1980-11-20 Canon K.K., Tokio Fotokopiergerät
US4084897A (en) * 1976-12-27 1978-04-18 International Business Machines Corporation Half-lens/mirror copier providing original-to-copy image reduction
DE2735679A1 (de) * 1977-08-08 1979-02-15 Canon Kk Fotokopiergeraet
US4232960A (en) * 1979-02-21 1980-11-11 Xerox Corporation Scanning system

Also Published As

Publication number Publication date
WO1982002256A1 (en) 1982-07-08
CA1151917A (en) 1983-08-16
BR8108931A (pt) 1982-11-30
US4338022A (en) 1982-07-06
EP0068000A1 (en) 1983-01-05
IT1145472B (it) 1986-11-05
AU542914B2 (en) 1985-03-21
JPS57502138A (it) 1982-12-02
EP0068000A4 (en) 1983-05-16

Similar Documents

Publication Publication Date Title
GB2144539B (en) Optical scanning apparatus
ES487794A0 (es) Perfeccionamientos en cables opticos de comunicaciones
ES524999A0 (es) Perfeccionamientos en un cable optico blindado
GB2073899B (en) Variable magnification line-by-line photocopying
JPS5363028A (en) Apparatus for focusing by continuously changing magnification for electrostatic copier
ES500310A0 (es) Aparato de manipulacion de obturadores
HK34586A (en) Variable magnification copying machine
GB2111696B (en) Variable magnification photocopying
DE3164832D1 (de) Electrographic apparatus
FI801850A (fi) Fototermisk infraroed mikroskop och kamera
GB2033607B (en) Zoom lenses having three or four lens groups
ES505077A0 (es) Un dispositivo enfocador optico
GB2128346B (en) Variable magnification photocopying
HK39883A (en) Improvements in zoom lenses
GB2149137B (en) Zoom lens barrel for variable magnification type copying machine
GB2101344B (en) Variable magnification photocopying
JPS57109964A (en) Copying machine having variable magnification
GB2116331B (en) Variable magnification photocopying
GB2087088B (en) Variable magnification line-by-line photocopying
IT1120541B (it) Complesso formatore di immagini ed illuminatore a fibre ottiche in particolare per macchine fotocopiatrici
IT1145600B (it) Dispositivo di scansione di un originale per copiatrici con rapporto di riduzione ingrandimento variabile
JPS5657018A (en) Variable magnification objective lense
GB2076990B (en) Variable magnification copying lens system having three groups
JPS52107851A (en) Variable magnification lens
IT8149969A0 (it) Complesso ottico ad ingrandimento variabile in particolare per apparecchi elettrografici a scansione