NL7212953A - - Google Patents

Info

Publication number
NL7212953A
NL7212953A NL7212953A NL7212953A NL7212953A NL 7212953 A NL7212953 A NL 7212953A NL 7212953 A NL7212953 A NL 7212953A NL 7212953 A NL7212953 A NL 7212953A NL 7212953 A NL7212953 A NL 7212953A
Authority
NL
Netherlands
Application number
NL7212953A
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 filed Critical
Publication of NL7212953A publication Critical patent/NL7212953A/xx

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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Optical Systems Of Projection Type Copiers (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Control Of Exposure In Printing And Copying (AREA)
  • Control Or Security For Electrophotography (AREA)
NL7212953A 1971-10-04 1972-09-25 NL7212953A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712149404 DE2149404B2 (en) 1971-10-04 1971-10-04 LIGHTING DEVICE FOR ELECTROPHOTOGRAPHIC REPRODUCTION EQUIPMENT

Publications (1)

Publication Number Publication Date
NL7212953A true NL7212953A (en) 1973-04-06

Family

ID=5821379

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7212953A NL7212953A (en) 1971-10-04 1972-09-25

Country Status (7)

Country Link
US (1) US3771867A (en)
JP (1) JPS5534422B2 (en)
AU (1) AU461626B2 (en)
DE (1) DE2149404B2 (en)
FR (1) FR2155559A5 (en)
GB (1) GB1398576A (en)
NL (1) NL7212953A (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS502548A (en) * 1973-05-08 1975-01-11
US3967895A (en) * 1974-09-18 1976-07-06 Xerox Corporation Illumination control system
DE2528925A1 (en) * 1975-06-28 1977-01-13 Agfa Gevaert Ag PHOTOCOPYER
JPS5229225A (en) * 1975-08-29 1977-03-04 Ricoh Co Ltd Exposure adjustable device of an automatic return type
JPS5841497B2 (en) * 1976-05-31 1983-09-12 ミノルタ株式会社 Exposure amount adjustment device for slit exposure type copying machine
IT1085310B (en) * 1977-02-02 1985-05-28 Grafosol Spa LIGHTING AND REGULATION DEVICE FOR THE QUANTITY OF LIGHT, FOR MACHINES FOR THE PREPARATION OF PRINTING DIES BY ELECTROSTATIC ROUTE
DE2839076C3 (en) * 1977-09-09 1998-01-29 Canon Kk Copier
JPS5442149A (en) * 1977-09-09 1979-04-03 Canon Inc Image former
JPS5492223A (en) * 1977-12-29 1979-07-21 Konishiroku Photo Ind Co Ltd Magnification variable type copier of automatic return type
DE2916243A1 (en) * 1978-04-25 1979-11-08 Iwatsu Electric Co Ltd EXPOSURE DEVICE FOR AN ELECTROGRAPHIC COPY DEVICE
GB2024438B (en) 1978-06-30 1983-04-27 Canon Kk Electrophotographic copier
JPS557709A (en) * 1978-06-30 1980-01-19 Canon Inc Exposure control unit of copying machine
DE2954647C2 (en) * 1978-06-30 1994-03-03 Canon Kk Electrophotographic copier with lamp control circuit
JPS55101965A (en) * 1979-01-30 1980-08-04 Ricoh Co Ltd Aperture control unit in variable power copying machine
JPS5621165A (en) * 1979-07-28 1981-02-27 Mita Ind Co Ltd Exposure adjusting device of electrostatic type copying machine
JPS56164365A (en) * 1980-05-23 1981-12-17 Fuji Xerox Co Ltd Exposure adjusting device for copying machine
JPS576870A (en) * 1980-06-13 1982-01-13 Minolta Camera Co Ltd Operating device
JPS61121760U (en) * 1985-01-17 1986-07-31
JPS61119160U (en) * 1985-12-19 1986-07-28
US5036552A (en) * 1990-02-22 1991-08-06 Deakyne Ralph V Fastener
US7344255B2 (en) * 2004-04-01 2008-03-18 Nisca Corporation Light amount adjusting apparatus and projector using the same

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3107578A (en) * 1959-12-05 1963-10-22 Agfa Ag Filter-operating arrangement for a photographic printing apparatus
GB1074583A (en) * 1963-01-23 1967-07-05 Eastman Kodak Co Sheet-handling apparatus
US3602579A (en) * 1969-11-17 1971-08-31 Film Editing Equipment Corp Electromechanical light valve system

Also Published As

Publication number Publication date
GB1398576A (en) 1975-06-25
DE2149404B2 (en) 1976-09-30
FR2155559A5 (en) 1973-05-18
US3771867A (en) 1973-11-13
AU4732672A (en) 1974-04-11
DE2149404A1 (en) 1973-04-12
AU461626B2 (en) 1975-05-29
JPS4846341A (en) 1973-07-02
JPS5534422B2 (en) 1980-09-06

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Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
BV The patent application has lapsed