DE2926360A1 - Bilderzeugungsgeraet - Google Patents

Bilderzeugungsgeraet

Info

Publication number
DE2926360A1
DE2926360A1 DE19792926360 DE2926360A DE2926360A1 DE 2926360 A1 DE2926360 A1 DE 2926360A1 DE 19792926360 DE19792926360 DE 19792926360 DE 2926360 A DE2926360 A DE 2926360A DE 2926360 A1 DE2926360 A1 DE 2926360A1
Authority
DE
Germany
Prior art keywords
image
density
lamp
input device
reproduction
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.)
Granted
Application number
DE19792926360
Other languages
German (de)
English (en)
Other versions
DE2926360C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
Inventor
Masato Ishida
Katsuyoshi Maeshima
Hisashi Sakamaki
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.)
Canon Inc
Original Assignee
Canon Inc
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
Priority claimed from JP7930778A external-priority patent/JPS557709A/ja
Priority claimed from JP8227578A external-priority patent/JPS559546A/ja
Priority claimed from JP8227378A external-priority patent/JPS559544A/ja
Priority claimed from JP8227478A external-priority patent/JPS559545A/ja
Priority claimed from JP8227678A external-priority patent/JPS559547A/ja
Priority claimed from JP8227778A external-priority patent/JPS559548A/ja
Priority claimed from JP8868278A external-priority patent/JPS5515180A/ja
Priority to DE2954647A priority Critical patent/DE2954647C2/de
Application filed by Canon Inc filed Critical Canon Inc
Publication of DE2926360A1 publication Critical patent/DE2926360A1/de
Publication of DE2926360C2 publication Critical patent/DE2926360C2/de
Application granted granted Critical
Granted 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
    • G03G15/043—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 means for controlling illumination or exposure
    • 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
    • G03B27/72—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus
    • 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
    • G03B27/72—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus
    • G03B27/722—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus when the reproduction scale is changed

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Control Of Exposure In Printing And Copying (AREA)
DE19792926360 1978-06-30 1979-06-29 Bilderzeugungsgeraet Granted DE2926360A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2954647A DE2954647C2 (de) 1978-06-30 1979-06-29 Kopiergerät mit einstellbarer Lichtquellenleistung

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
JP7930778A JPS557709A (en) 1978-06-30 1978-06-30 Exposure control unit of copying machine
JP8227378A JPS559544A (en) 1978-07-06 1978-07-06 Exposure control device
JP8227478A JPS559545A (en) 1978-07-06 1978-07-06 Exposure control device
JP8227678A JPS559547A (en) 1978-07-06 1978-07-06 Device having light source for exposure
JP8227578A JPS559546A (en) 1978-07-06 1978-07-06 Device having light source for exposure
JP8227778A JPS559548A (en) 1978-07-06 1978-07-06 Device having light source for exposure
JP8868278A JPS5515180A (en) 1978-07-20 1978-07-20 Copying apparatus

Publications (2)

Publication Number Publication Date
DE2926360A1 true DE2926360A1 (de) 1980-01-10
DE2926360C2 DE2926360C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1989-07-20

Family

ID=27565302

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792926360 Granted DE2926360A1 (de) 1978-06-30 1979-06-29 Bilderzeugungsgeraet

Country Status (3)

Country Link
US (1) US4320964A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE2926360A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB2024438B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3133168A1 (de) * 1980-08-23 1982-03-25 Ricoh Co., Ltd., Tokyo Belichtungswert-steuersystem fuer eine belichtungseinrichtung
DE3214286A1 (de) * 1981-04-20 1982-11-04 Canon K.K., Tokyo Einrichtung zur bilderzeugung
DE3334361A1 (de) * 1982-09-24 1984-03-29 Canon K.K., Tokyo Kopiergeraet
FR2537739A1 (fr) * 1982-12-13 1984-06-15 Fuji Photo Film Co Ltd Dispositif de reglage de la densite pour un duplicateur electrophotographique
DE3406568A1 (de) * 1983-02-25 1984-08-30 Canon K.K., Tokio/Tokyo Bilderzeugungsgeraet
DE3925760A1 (de) * 1988-08-05 1990-02-08 Toshiba Kk Belichtungsregelvorrichtung fuer kopiergeraet mit variablem abbildungsmassstab

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5859933A (en) * 1973-10-29 1999-01-12 Canon Kabushiki Kaisha Image forming apparatus
DE3214452A1 (de) * 1982-04-20 1983-10-20 Develop Dr. Eisbein Gmbh & Co, 7016 Gerlingen Belichtungseinrichtung fuer ein kopiergeraet
JPS5979240A (ja) * 1982-10-29 1984-05-08 Hitachi Ltd 複写機の露光制御装置
US5982114A (en) * 1983-08-13 1999-11-09 Canon Kabushiki Kaisha Control apparatus for copying machine or the like
US5610480A (en) * 1983-08-13 1997-03-11 Canon Kabushiki Kaisha Control apparatus for copying machine or the like
GB2145587B (en) * 1983-08-25 1987-06-10 Lutron Electronics Co Gas discharging lamp dimming system
JPH0618418B2 (ja) * 1984-04-11 1994-03-09 シャープ株式会社 読取装置
JPH0820680B2 (ja) * 1986-03-04 1996-03-04 ミノルタ株式会社 複写機の露光量制御方法
US5214473A (en) * 1987-03-27 1993-05-25 Minolta Camera Kabushiki Kaisha Image forming apparatus with manual mode exposure range shifting control
US4916487A (en) * 1987-07-15 1990-04-10 Minolta Camera Kabushiki Kaisha Image forming apparatus
US4990953A (en) * 1988-05-27 1991-02-05 Sharp Kabushiki Kaisha Copying apparatus
US5255063A (en) * 1989-12-15 1993-10-19 Minolta Camera Kabushiki Kaisha Color copying apparatus with improved start timing of a scanner
US5612596A (en) * 1995-10-16 1997-03-18 Conservation Load Switch, Inc. Conservation traffic control load switch
JP4200535B2 (ja) * 1998-02-27 2008-12-24 ソニー株式会社 発光素子の駆動回路
RU2239224C1 (ru) * 2003-04-16 2004-10-27 Дальневосточный государственный технический университет Устройство токовой стабилизации источника напряжения
JP6292510B2 (ja) * 2014-03-13 2018-03-14 パナソニックＩｐマネジメント株式会社 調光装置及びそれを用いた照明システム
CN111458620A (zh) * 2020-05-26 2020-07-28 厦门迈斯维自动化设备有限公司 Led灯板测亮机

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3742295A (en) * 1970-03-30 1973-06-26 Minolta Camera Kk Lighting system in copying apparatus
US3771867A (en) 1971-10-04 1973-11-13 H Moser Exposure apparatus for electrophotographic reproduction machines
DE2442125A1 (de) 1973-09-03 1975-03-13 Canon Kk Belichtungslampensteuervorrichtung
US3884576A (en) * 1972-02-05 1975-05-20 Ricoh Kk Exposure unit for a copying machine having a variable magnification
GB1416610A (en) * 1972-12-20 1975-12-03 Carlson Co Chesley F Timer
DE2634241A1 (de) 1975-10-06 1977-04-14 Ibm Hochwirksames beleuchtungssystem
US4054380A (en) 1974-02-22 1977-10-18 Xerox Corporation Control system for high speed copier/duplicators

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2545488A1 (de) * 1975-10-10 1977-04-21 Agfa Gevaert Ag Vorbetrachtungsgeraet zu einem fotografischen kopiergeraet

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3742295A (en) * 1970-03-30 1973-06-26 Minolta Camera Kk Lighting system in copying apparatus
US3771867A (en) 1971-10-04 1973-11-13 H Moser Exposure apparatus for electrophotographic reproduction machines
US3884576A (en) * 1972-02-05 1975-05-20 Ricoh Kk Exposure unit for a copying machine having a variable magnification
GB1416610A (en) * 1972-12-20 1975-12-03 Carlson Co Chesley F Timer
DE2442125A1 (de) 1973-09-03 1975-03-13 Canon Kk Belichtungslampensteuervorrichtung
US3898006A (en) * 1973-09-03 1975-08-05 Canon Kk Exposure lamp control device
US4054380A (en) 1974-02-22 1977-10-18 Xerox Corporation Control system for high speed copier/duplicators
DE2634241A1 (de) 1975-10-06 1977-04-14 Ibm Hochwirksames beleuchtungssystem

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3133168A1 (de) * 1980-08-23 1982-03-25 Ricoh Co., Ltd., Tokyo Belichtungswert-steuersystem fuer eine belichtungseinrichtung
DE3214286A1 (de) * 1981-04-20 1982-11-04 Canon K.K., Tokyo Einrichtung zur bilderzeugung
DE3334361A1 (de) * 1982-09-24 1984-03-29 Canon K.K., Tokyo Kopiergeraet
FR2537739A1 (fr) * 1982-12-13 1984-06-15 Fuji Photo Film Co Ltd Dispositif de reglage de la densite pour un duplicateur electrophotographique
DE3406568A1 (de) * 1983-02-25 1984-08-30 Canon K.K., Tokio/Tokyo Bilderzeugungsgeraet
DE3925760A1 (de) * 1988-08-05 1990-02-08 Toshiba Kk Belichtungsregelvorrichtung fuer kopiergeraet mit variablem abbildungsmassstab
US5043766A (en) * 1988-08-05 1991-08-27 Kabushiki Kaisha Toshiba Exposure control apparatus for variable magnification copying machine

Also Published As

Publication number Publication date
US4320964A (en) 1982-03-23
DE2926360C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1989-07-20
GB2024438B (en) 1983-04-27
GB2024438A (en) 1980-01-09

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