CH464691A - Appareil de classement d'exposition - Google Patents

Appareil de classement d'exposition

Info

Publication number
CH464691A
CH464691A CH722968A CH722968A CH464691A CH 464691 A CH464691 A CH 464691A CH 722968 A CH722968 A CH 722968A CH 722968 A CH722968 A CH 722968A CH 464691 A CH464691 A CH 464691A
Authority
CH
Switzerland
Prior art keywords
cells
density
relatively small
original
output signals
Prior art date
Application number
CH722968A
Other languages
English (en)
French (fr)
Inventor
Waldemar Huboi Robert
F Palmer Osmond
D Rising Bradley
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of CH464691A publication Critical patent/CH464691A/fr

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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Exposure In Printing And Copying (AREA)
CH722968A 1967-05-22 1968-05-16 Appareil de classement d'exposition CH464691A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US64013667A 1967-05-22 1967-05-22

Publications (1)

Publication Number Publication Date
CH464691A true CH464691A (fr) 1968-10-31

Family

ID=24566984

Family Applications (1)

Application Number Title Priority Date Filing Date
CH722968A CH464691A (fr) 1967-05-22 1968-05-16 Appareil de classement d'exposition

Country Status (4)

Country Link
CH (1) CH464691A (en, 2012)
DE (1) DE1772475B1 (en, 2012)
FR (1) FR1571646A (en, 2012)
GB (1) GB1229677A (en, 2012)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2143023A1 (de) * 1970-08-27 1972-03-02 Eastmann Kodak Co., Rochester, N.Y. (V.StA.) Verfahren und Vorrichtung zum Ermitteln der richtigen Belichtung beim Kopieren von Vorlagen

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3220203C2 (de) * 1982-05-28 1986-03-06 Agfa-Gevaert Ag, 5090 Leverkusen Verfahren zur Sortierung von fotografischen Kopiervorlagen in verschiedenen Motivgruppen und zur Festlegung von Dichtekorrekturwerten

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3188475A (en) * 1961-11-24 1965-06-08 Raytheon Co Multiple zone photoelectric device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2143023A1 (de) * 1970-08-27 1972-03-02 Eastmann Kodak Co., Rochester, N.Y. (V.StA.) Verfahren und Vorrichtung zum Ermitteln der richtigen Belichtung beim Kopieren von Vorlagen

Also Published As

Publication number Publication date
DE1772475B1 (de) 1970-09-24
GB1229677A (en, 2012) 1971-04-28
FR1571646A (en, 2012) 1969-06-20

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