CH518571A - Device for controlling several variable factors - Google Patents

Device for controlling several variable factors

Info

Publication number
CH518571A
CH518571A CH1781669A CH1781669A CH518571A CH 518571 A CH518571 A CH 518571A CH 1781669 A CH1781669 A CH 1781669A CH 1781669 A CH1781669 A CH 1781669A CH 518571 A CH518571 A CH 518571A
Authority
CH
Switzerland
Prior art keywords
variable factors
several variable
controlling several
controlling
factors
Prior art date
Application number
CH1781669A
Other languages
French (fr)
Inventor
Frederick Wilson James
Original Assignee
Bell & Howell 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 Bell & Howell Co filed Critical Bell & Howell Co
Publication of CH518571A publication Critical patent/CH518571A/en

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/73—Colour balance circuits, e.g. white balance circuits or colour temperature control

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Prostheses (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
CH1781669A 1968-11-29 1969-11-28 Device for controlling several variable factors CH518571A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US77981768A 1968-11-29 1968-11-29

Publications (1)

Publication Number Publication Date
CH518571A true CH518571A (en) 1972-01-31

Family

ID=25117669

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1781669A CH518571A (en) 1968-11-29 1969-11-28 Device for controlling several variable factors

Country Status (7)

Country Link
AT (1) AT303524B (en)
BE (1) BE742395A (en)
CH (1) CH518571A (en)
DE (1) DE1958923A1 (en)
FR (1) FR2024524A1 (en)
GB (1) GB1282602A (en)
NL (1) NL6917930A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4522491A (en) * 1979-09-17 1985-06-11 Ingalls Marjorie D Method for reproducing one or more target colors on photographic paper or the like
US4425417A (en) 1979-09-17 1984-01-10 Ingalls Marjorie D Method for preparation of a color proof from a set of color separation films, masks or the like
US4411529A (en) 1979-09-17 1983-10-25 Ingalls Marjorie D Color reference data base and method of preparing same

Also Published As

Publication number Publication date
FR2024524A1 (en) 1970-08-28
BE742395A (en) 1970-05-04
AT303524B (en) 1972-11-27
GB1282602A (en) 1972-07-19
NL6917930A (en) 1970-06-02
DE1958923A1 (en) 1970-06-11

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Legal Events

Date Code Title Description
PL Patent ceased