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CA953493A - Color comparator - Google Patents

Color comparator

Info

Publication number
CA953493A
CA953493A CA139,077A CA139077A CA953493A CA 953493 A CA953493 A CA 953493A CA 139077 A CA139077 A CA 139077A CA 953493 A CA953493 A CA 953493A
Authority
CA
Canada
Prior art keywords
color comparator
comparator
color
Prior art date
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
CA139,077A
Other versions
CA139077S (en
Inventor
Robert W. Mitchell
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
Application granted granted Critical
Publication of CA953493A publication Critical patent/CA953493A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
    • G01J3/52—Measurement of colour; Colour measuring devices, e.g. colorimeters using colour charts

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Filters (AREA)
  • Spectrometry And Color Measurement (AREA)
  • Color Television Image Signal Generators (AREA)
CA139,077A 1971-04-19 1972-04-06 Color comparator Expired CA953493A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13496471A 1971-04-19 1971-04-19

Publications (1)

Publication Number Publication Date
CA953493A true CA953493A (en) 1974-08-27

Family

ID=22465838

Family Applications (1)

Application Number Title Priority Date Filing Date
CA139,077A Expired CA953493A (en) 1971-04-19 1972-04-06 Color comparator

Country Status (7)

Country Link
US (1) US3748045A (en)
JP (1) JPS5128238B1 (en)
CA (1) CA953493A (en)
DE (1) DE2218917B2 (en)
FR (1) FR2133847B1 (en)
GB (1) GB1390194A (en)
IT (1) IT952615B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3967897A (en) * 1974-10-04 1976-07-06 Rogers Winston L Apparatus and method for evaluating color negatives
JPS5931056B2 (en) * 1975-05-15 1984-07-31 直司 西川 Color correction method and color print scale for color prints
US4257702A (en) * 1977-07-05 1981-03-24 Miller Bertram W Apparatus for ascertaining color balance of photographic printing paper
USRE30449E (en) * 1978-07-10 1980-12-16 Photographic printing method
US4492474A (en) * 1982-05-26 1985-01-08 Miller Bertram W Method and apparatus for ascertaining color balance of photographic printing paper
WO1990009569A1 (en) * 1989-02-15 1990-08-23 Lithodatec Managment Inc. Colour system calibration sheet, vignettes and transitions

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1769777A (en) * 1928-04-21 1930-07-01 Equity Press Inc Hzemoglobin chart
DE622102C (en) * 1931-06-01 1935-11-19 Alfons Michalski Device for examining and determining color tone values and printing element sizes
US2128676A (en) * 1935-12-07 1938-08-30 Interchem Corp Color chart and method of making the same
US2240053A (en) * 1939-04-05 1941-04-29 Richardson King Color scale
US3529519A (en) * 1968-04-11 1970-09-22 Heath Co Method and apparatus for color adjusting in photographic printing

Also Published As

Publication number Publication date
IT952615B (en) 1973-07-30
US3748045A (en) 1973-07-24
GB1390194A (en) 1975-04-09
FR2133847A1 (en) 1972-12-01
JPS5128238B1 (en) 1976-08-18
FR2133847B1 (en) 1974-12-20
DE2218917A1 (en) 1972-11-09
DE2218917B2 (en) 1976-07-15

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