DE2456283C2 - Optische Beleuchtungs- und Abtasteinrichtung, insbesondere für eine mit verschiedenen Vergrößerungsfaktoren betreibbare elektrophotographische Kopiermaschine - Google Patents

Optische Beleuchtungs- und Abtasteinrichtung, insbesondere für eine mit verschiedenen Vergrößerungsfaktoren betreibbare elektrophotographische Kopiermaschine

Info

Publication number
DE2456283C2
DE2456283C2 DE2456283A DE2456283A DE2456283C2 DE 2456283 C2 DE2456283 C2 DE 2456283C2 DE 2456283 A DE2456283 A DE 2456283A DE 2456283 A DE2456283 A DE 2456283A DE 2456283 C2 DE2456283 C2 DE 2456283C2
Authority
DE
Germany
Prior art keywords
lens
movement
shaft
cam
arrows
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
DE2456283A
Other languages
German (de)
English (en)
Other versions
DE2456283A1 (de
Inventor
Robert Tyre Lexington Ky. Ritchie
James Charles Boulder Col. Rogers
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of DE2456283A1 publication Critical patent/DE2456283A1/de
Application granted granted Critical
Publication of DE2456283C2 publication Critical patent/DE2456283C2/de
Expired legal-status Critical Current

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
    • 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
    • G03B27/00—Photographic printing apparatus
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/52—Details
    • G03B27/522—Projection optics
    • G03B27/525—Projection optics for slit exposure
    • G03B27/526—Projection optics for slit exposure in which the projection optics move

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Variable Magnification In Projection-Type Copying Machines (AREA)
  • Optical Systems Of Projection Type Copiers (AREA)
  • Lenses (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
DE2456283A 1973-11-29 1974-11-28 Optische Beleuchtungs- und Abtasteinrichtung, insbesondere für eine mit verschiedenen Vergrößerungsfaktoren betreibbare elektrophotographische Kopiermaschine Expired DE2456283C2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US420338A US3897148A (en) 1973-11-29 1973-11-29 Optical scanning system

Publications (2)

Publication Number Publication Date
DE2456283A1 DE2456283A1 (de) 1975-06-12
DE2456283C2 true DE2456283C2 (de) 1982-02-04

Family

ID=23666063

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2456283A Expired DE2456283C2 (de) 1973-11-29 1974-11-28 Optische Beleuchtungs- und Abtasteinrichtung, insbesondere für eine mit verschiedenen Vergrößerungsfaktoren betreibbare elektrophotographische Kopiermaschine

Country Status (7)

Country Link
US (1) US3897148A (US07709020-20100504-C00041.png)
JP (1) JPS5527348B2 (US07709020-20100504-C00041.png)
CA (1) CA1037547A (US07709020-20100504-C00041.png)
DE (1) DE2456283C2 (US07709020-20100504-C00041.png)
FR (1) FR2253223B1 (US07709020-20100504-C00041.png)
GB (1) GB1437892A (US07709020-20100504-C00041.png)
IT (1) IT1022107B (US07709020-20100504-C00041.png)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3925468A1 (de) * 1988-08-01 1990-02-08 Asahi Optical Co Ltd Bewegungssteuerung insbesondere fuer die variooptik einer kopiermaschine

Families Citing this family (39)

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JPS6014345B2 (ja) * 1974-12-25 1985-04-12 株式会社リコー 電子複写機における変倍スリツト露光方法
US4095880A (en) * 1975-06-27 1978-06-20 Xerox Corporation Extended range variable magnification reproduction machine
US4093374A (en) * 1976-01-12 1978-06-06 Xerox Corporation Multiple range variable magnification reproduction machine
US4032231A (en) * 1976-05-03 1977-06-28 Xerox Corporation Multiple range variable magnification reproduction machine using three-dimensional cam
US4120578A (en) * 1976-09-07 1978-10-17 International Business Machines Corporation Continuously variable reduction scanning optics drive
GB1525218A (en) * 1976-09-07 1978-09-20 Ibm Electrophotographic copying machine
US4105327A (en) * 1976-12-09 1978-08-08 International Business Machines Corporation Multiple reduction indicators for continuously variable reduction copier machines
US4124293A (en) * 1976-12-09 1978-11-07 International Business Machines Corporation Cam-operated scanning optics drive for a continuously variable magnification system
JPS5922932B2 (ja) * 1977-01-24 1984-05-30 株式会社リコー 変倍複写機における照度むら補正装置
US4077715A (en) * 1977-02-18 1978-03-07 Itek Corporation Adjustable optical cam
GB1553638A (en) * 1977-03-11 1979-09-26 Ici Ltd Preparation of cyclopropane carboxylic acid esters
US4142793A (en) * 1977-12-09 1979-03-06 Minnesota Mining And Manufacturing Company Variable speed drive apparatus for the scanning system of a copy machine
JPS54122132A (en) * 1978-03-16 1979-09-21 Ricoh Co Ltd Slit exposure method for photreceptor in copier
JPS557771A (en) * 1978-07-04 1980-01-19 Ricoh Co Ltd Scanning device of copying machine
JPS5555364A (en) * 1978-10-19 1980-04-23 Ricoh Co Ltd Slit exposure optical system in electrophotographic copying machine
US5146276A (en) * 1978-11-09 1992-09-08 Spectrum Sciences B.V. Rotatable focusing means and variable magnification electrophotocopier
US4232960A (en) * 1979-02-21 1980-11-11 Xerox Corporation Scanning system
DE3025468A1 (de) * 1979-07-05 1981-01-15 Canon Kk Optisches schlitzabtastsystem
JPS5639565A (en) * 1979-09-10 1981-04-15 Asahi Optical Co Ltd Variable-magnification copying machine
US4272187A (en) * 1979-12-17 1981-06-09 International Business Machines Corporation Automatic alignment of optical elements in an electrophotographic apparatus
JPS5738462A (en) * 1980-08-20 1982-03-03 Ricoh Co Ltd Copying method of variable magnification and reciprocating exposure
US4368976A (en) * 1981-03-09 1983-01-18 Xerox Corporation Variable speed scanning system
JPS5835563A (ja) * 1981-08-26 1983-03-02 Canon Inc 複写装置
JPS5895358A (ja) * 1981-11-30 1983-06-06 Mita Ind Co Ltd 可変倍率静電複写方法
US4505581A (en) * 1982-04-28 1985-03-19 Xerox Corporation Registration system for a photocopier
US4466734A (en) * 1982-04-28 1984-08-21 Xerox Corporation Compact full frame illumination and imaging system for a photocopier
US4543643A (en) * 1982-05-28 1985-09-24 Minolta Camera Copying magnification setting device for an electrophotographic copying apparatus
DE3224344C2 (de) * 1982-06-30 1986-01-23 Agfa-Gevaert Ag, 5090 Leverkusen Optisches Kopiergerät
US4538904A (en) * 1982-09-21 1985-09-03 Xerox Corporation Multiple magnification mode copying apparatus
US5369733A (en) * 1982-10-01 1994-11-29 Canon Kabushiki Kaisha Image processing apparatus with apparatus for adjusting a magnification setting
JPS5999429A (ja) * 1982-11-30 1984-06-08 Mita Ind Co Ltd 可変倍率静電複写機
JPS59107340A (ja) * 1982-12-13 1984-06-21 Toshiba Corp 画像形成装置
US4530592A (en) * 1983-03-21 1985-07-23 Xerox Corporation Registration mechanism for a multimagnification reproduction apparatus
JPS59181436U (ja) * 1983-05-19 1984-12-04 ミノルタ株式会社 複写機における倍率変更装置
US4905042A (en) * 1983-11-25 1990-02-27 Canon Kabushiki Kaisha Image forming apparatus
JPS60250339A (ja) * 1984-05-25 1985-12-11 Minolta Camera Co Ltd 複写機の変倍駆動制御方法
US4623239A (en) * 1985-02-21 1986-11-18 Xerox Corporation Optical scanning system
JPS62113229U (US07709020-20100504-C00041.png) * 1986-01-09 1987-07-18
JPH01209460A (ja) * 1988-02-18 1989-08-23 Toshiba Corp 画像形成装置における光学装置

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2464793A (en) * 1942-08-08 1949-03-22 Lester Cooke Jr H Method and apparatus for photographic scanning
US3222982A (en) * 1961-12-13 1965-12-14 William G Gelb Scanning photographic copying apparatus
JPS432880Y1 (US07709020-20100504-C00041.png) * 1965-07-09 1968-02-06
US3572924A (en) * 1967-10-12 1971-03-30 Tokyo Shibaura Electric Co Copying apparatus
US3591256A (en) * 1968-04-15 1971-07-06 Xerox Corp Variable magnification lens system
JPS4821892B1 (US07709020-20100504-C00041.png) * 1969-02-28 1973-07-02
DE1935617A1 (de) * 1969-07-14 1971-02-04 Canon Kk Fotokopiergeraet
JPS4919084Y1 (US07709020-20100504-C00041.png) * 1969-11-07 1974-05-22
US3687544A (en) * 1970-03-11 1972-08-29 Mueller Rudolf Electrophotographic copying machine
US3614222A (en) * 1970-04-24 1971-10-19 Olivetti & Co Spa Optical drive system for reproducing machine
JPS541178B1 (US07709020-20100504-C00041.png) * 1970-11-06 1979-01-22
US3709602A (en) * 1971-11-05 1973-01-09 Ricoh Kk Optical path length compensation in a copier
DE2155247C3 (de) * 1971-11-06 1975-12-18 Canon K.K., Tokio Elektrofotografisches Kopiergerät
NL170463C (nl) * 1971-12-20 1982-11-01 Oce Van Der Grinten Nv Fotokopieerinrichting met heen- en weergaande delen in het optische systeem.
US3778147A (en) * 1972-07-11 1973-12-11 Xerox Corp Electrostatic reproduction machine having selectable magnification ratios

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3925468A1 (de) * 1988-08-01 1990-02-08 Asahi Optical Co Ltd Bewegungssteuerung insbesondere fuer die variooptik einer kopiermaschine

Also Published As

Publication number Publication date
US3897148A (en) 1975-07-29
CA1037547A (en) 1978-08-29
FR2253223B1 (US07709020-20100504-C00041.png) 1977-03-25
JPS5527348B2 (US07709020-20100504-C00041.png) 1980-07-19
IT1022107B (it) 1978-03-20
GB1437892A (en) 1976-06-03
DE2456283A1 (de) 1975-06-12
FR2253223A1 (US07709020-20100504-C00041.png) 1975-06-27
JPS5087654A (US07709020-20100504-C00041.png) 1975-07-14

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Legal Events

Date Code Title Description
8126 Change of the secondary classification

Ipc: G03G 15/04

D2 Grant after examination
8339 Ceased/non-payment of the annual fee