FR2256433B3 - - Google Patents

Info

Publication number
FR2256433B3
FR2256433B3 FR7443579A FR7443579A FR2256433B3 FR 2256433 B3 FR2256433 B3 FR 2256433B3 FR 7443579 A FR7443579 A FR 7443579A FR 7443579 A FR7443579 A FR 7443579A FR 2256433 B3 FR2256433 B3 FR 2256433B3
Authority
FR
France
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.)
Expired
Application number
FR7443579A
Other languages
French (fr)
Other versions
FR2256433A1 (en
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of FR2256433A1 publication Critical patent/FR2256433A1/en
Application granted granted Critical
Publication of FR2256433B3 publication Critical patent/FR2256433B3/fr
Granted legal-status Critical Current

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
    • G03B27/73—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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Color Television Image Signal Generators (AREA)
  • Projection-Type Copiers In General (AREA)
  • Control Of Exposure In Printing And Copying (AREA)
FR7443579A 1973-12-28 1974-12-30 Colour correction control for photoprinter - has bridge cct to balance outputs of photocell, variable resistors and level setting store Granted FR2256433A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732364914 DE2364914A1 (en) 1973-12-28 1973-12-28 DEVICE FOR DETERMINING FILTER AND EXPOSURE VALUES FOR CORRECT COLOR COPYING OF COLOR MASTERS

Publications (2)

Publication Number Publication Date
FR2256433A1 FR2256433A1 (en) 1975-07-25
FR2256433B3 true FR2256433B3 (en) 1977-09-23

Family

ID=5902117

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7443579A Granted FR2256433A1 (en) 1973-12-28 1974-12-30 Colour correction control for photoprinter - has bridge cct to balance outputs of photocell, variable resistors and level setting store

Country Status (4)

Country Link
JP (1) JPS50141325A (en)
DE (1) DE2364914A1 (en)
FR (1) FR2256433A1 (en)
IT (1) IT1027898B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2557885C2 (en) * 1975-12-22 1986-06-26 Martin 5160 Düren Heinze Electromechanically operated central shutter for photographic cameras
IT1103341B (en) * 1978-09-07 1985-10-14 Durst Spa Fabbrica Macchine Ed ELECTRICAL CIRCUIT PROVISION FOR THE CONTROL OF THE EXPOSURE TIME IN EQUIPMENT FOR PHOTOGRAPHIC ENLARGEMENT
JPS5977433A (en) * 1982-10-26 1984-05-02 Dainippon Screen Mfg Co Ltd Copy camera
DE3307331A1 (en) * 1983-03-02 1984-09-06 Koenigk Elektronik u. Fototechnik GmbH, 8551 Adelsdorf Device for electronically converting a colour negative into a positive-colour screen image

Also Published As

Publication number Publication date
IT1027898B (en) 1978-12-20
DE2364914A1 (en) 1975-07-03
FR2256433A1 (en) 1975-07-25
JPS50141325A (en) 1975-11-13

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Legal Events

Date Code Title Description
ST Notification of lapse