IT1145472B - Complesso ottico ad ingrandimento variabile in particolare apparecchi elettrografici a scansione - Google Patents

Complesso ottico ad ingrandimento variabile in particolare apparecchi elettrografici a scansione

Info

Publication number
IT1145472B
IT1145472B IT49969/81A IT4996981A IT1145472B IT 1145472 B IT1145472 B IT 1145472B IT 49969/81 A IT49969/81 A IT 49969/81A IT 4996981 A IT4996981 A IT 4996981A IT 1145472 B IT1145472 B IT 1145472B
Authority
IT
Italy
Prior art keywords
variable magnification
magnification optical
particular scanning
optical complex
electrographic
Prior art date
Application number
IT49969/81A
Other languages
English (en)
Other versions
IT8149969A0 (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)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Variable Magnification In Projection-Type Copying Machines (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 IT8149969A0 (it) 1981-12-21
IT1145472B true 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 (4)

* 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
EP3368314A4 (en) 2015-10-30 2019-05-01 Seurat Technologies, Inc. MULTIFUNCTIONAL INGESTER SYSTEM FOR GENERATIVE MANUFACTURING
US12162074B2 (en) 2020-11-25 2024-12-10 Lawrence Livermore National Security, Llc System and method for large-area pulsed laser melting of metallic powder in a laser powder bed fusion application

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
IT8149969A0 (it) 1981-12-21
CA1151917A (en) 1983-08-16
BR8108931A (pt) 1982-11-30
JPS57502138A (it) 1982-12-02
US4338022A (en) 1982-07-06
AU542914B2 (en) 1985-03-21
EP0068000A1 (en) 1983-01-05
EP0068000A4 (en) 1983-05-16

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