CH577186A5 - - Google Patents

Info

Publication number
CH577186A5
CH577186A5 CH334274A CH334274A CH577186A5 CH 577186 A5 CH577186 A5 CH 577186A5 CH 334274 A CH334274 A CH 334274A CH 334274 A CH334274 A CH 334274A CH 577186 A5 CH577186 A5 CH 577186A5
Authority
CH
Switzerland
Application number
CH334274A
Original Assignee
Agfa Gevaert Ag
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 Agfa Gevaert Ag filed Critical Agfa Gevaert Ag
Publication of CH577186A5 publication Critical patent/CH577186A5/xx

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/02—Sensitometric processes, e.g. determining sensitivity, colour sensitivity, gradation, graininess, density; Making sensitometric wedges
    • 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
    • G03B27/727—Optical projection devices wherein the contrast is controlled optically (e.g. uniform exposure, two colour exposure on variable contrast sensitive material)

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Control Of Exposure In Printing And Copying (AREA)
  • Projection-Type Copiers In General (AREA)
CH334274A 1973-03-17 1974-03-11 CH577186A5 (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2313349A DE2313349C3 (de) 1973-03-17 1973-03-17 Vorrichtung zur Steuerung der Belichtung

Publications (1)

Publication Number Publication Date
CH577186A5 true CH577186A5 (xx) 1976-06-30

Family

ID=5875068

Family Applications (1)

Application Number Title Priority Date Filing Date
CH334274A CH577186A5 (xx) 1973-03-17 1974-03-11

Country Status (10)

Country Link
US (1) US3864036A (xx)
JP (1) JPS5343403B2 (xx)
BE (1) BE812276A (xx)
CH (1) CH577186A5 (xx)
DE (1) DE2313349C3 (xx)
FR (1) FR2221748B1 (xx)
GB (1) GB1461061A (xx)
HK (1) HK42077A (xx)
IT (1) IT1009283B (xx)
NL (1) NL7403547A (xx)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4063821A (en) * 1976-07-19 1977-12-20 General Kinetics, Incorporated Gas detector tube reader
DK153426B (da) * 1977-04-12 1988-07-11 Eskofot As Fremgangsmaade til styring kontrasten ved raster eproduktion
DK154860C (da) * 1980-04-15 1989-07-10 Eskofot As Fremgangsmaade til styring af kontrasten ved reproduktion, saasom rasterreproduktion
US4611918A (en) * 1983-03-24 1986-09-16 Noritsu Kenkya Center Co., Ltd. Method of determining the optimum exposure conditions for a color printer
US4882490A (en) * 1987-09-22 1989-11-21 Fuji Photo Film Co., Ltd. Light beam scanning apparatus having two detectors whose signal ratio indicates main scanning position
US5177532A (en) * 1989-04-18 1993-01-05 Fuji Photo Film Co., Ltd. Image forming apparatus for adjusting gradation using subsidiary exposure
US5351106A (en) * 1991-07-01 1994-09-27 Amergraph Corporation Exposure system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2161371A (en) * 1936-02-24 1939-06-06 Eastman Kodak Co Photographic apparatus
US2557182A (en) * 1947-12-09 1951-06-19 Valmore J Forgett Printer with contrast filters
CH483652A (de) * 1967-08-25 1969-12-31 Agfa Gevaert Ag Verfahren und Vorrichtung zur fotoelektrischen Belichtungssteuerung
JPS5243365B2 (xx) * 1971-09-22 1977-10-29
JPS5036745Y2 (xx) * 1971-11-26 1975-10-25

Also Published As

Publication number Publication date
IT1009283B (it) 1976-12-10
JPS5026531A (xx) 1975-03-19
DE2313349A1 (de) 1974-09-19
FR2221748A1 (xx) 1974-10-11
BE812276A (nl) 1974-09-13
JPS5343403B2 (xx) 1978-11-20
US3864036A (en) 1975-02-04
HK42077A (en) 1977-08-19
DE2313349C3 (de) 1979-11-22
NL7403547A (xx) 1974-08-26
FR2221748B1 (xx) 1976-12-17
GB1461061A (en) 1977-01-13
DE2313349B2 (de) 1979-03-22

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Legal Events

Date Code Title Description
PL Patent ceased