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SE300555B - - Google Patents

Info

Publication number
SE300555B
SE300555B SE3167/64A SE316764A SE300555B SE 300555 B SE300555 B SE 300555B SE 3167/64 A SE3167/64 A SE 3167/64A SE 316764 A SE316764 A SE 316764A SE 300555 B SE300555 B SE 300555B
Authority
SE
Sweden
Prior art keywords
amplifiers
picture
signal
light
pulse train
Prior art date
Application number
SE3167/64A
Other languages
English (en)
Inventor
H Mey
Original Assignee
Gretag 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 Gretag Ag filed Critical Gretag Ag
Publication of SE300555B publication Critical patent/SE300555B/xx

Links

Classifications

    • 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
    • G03B27/80—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus in dependence upon automatic analysis of the original
    • 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
    • G03B27/73—Controlling exposure by variation of spectral composition, e.g. multicolor printers
    • G03B27/735—Controlling exposure by variation of spectral composition, e.g. multicolor printers in dependence upon automatic analysis of the original

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection-Type Copiers In General (AREA)
  • Control Of Exposure In Printing And Copying (AREA)
SE3167/64A 1963-03-15 1964-03-13 SE300555B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH328463A CH418828A (de) 1963-03-15 1963-03-15 Einrichtung zur Steuerung der Belichtung in photographischen Kopiergeräten

Publications (1)

Publication Number Publication Date
SE300555B true SE300555B (de) 1968-04-29

Family

ID=4252648

Family Applications (1)

Application Number Title Priority Date Filing Date
SE3167/64A SE300555B (de) 1963-03-15 1964-03-13

Country Status (6)

Country Link
US (1) US3298296A (de)
BE (1) BE645156A (de)
CH (1) CH418828A (de)
GB (1) GB1040502A (de)
NL (1) NL6402653A (de)
SE (1) SE300555B (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1070882A (en) * 1965-01-04 1967-06-07 Ilford Ltd Photographic colour printers and processes
US3639058A (en) * 1969-01-25 1972-02-01 Fuji Photo Film Co Ltd Automatic photographic gradation-measuring system for controlling auxiliary exposure means
US3619055A (en) * 1969-06-05 1971-11-09 Sargent Welch Scientific Co Exposure control device
GB1361392A (en) * 1970-09-24 1974-07-24 Hansard C Photographic explosure controller
US3795445A (en) * 1973-03-15 1974-03-05 Eastman Kodak Co Slope control exposure control apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2528924A (en) * 1950-11-07 Vassy
US2561243A (en) * 1946-04-16 1951-07-17 Gen Aniline & Film Corp Comparison type densitometer and electronic measuring circuit therefor
US3039353A (en) * 1954-06-14 1962-06-19 Perkin Elmer Corp Radiation comparison systems

Also Published As

Publication number Publication date
GB1040502A (en) 1966-08-24
BE645156A (de) 1964-09-14
CH418828A (de) 1966-08-15
NL6402653A (de) 1964-09-16
US3298296A (en) 1967-01-17

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