GB1160673A - Device for Colour Synthesis - Google Patents

Device for Colour Synthesis

Info

Publication number
GB1160673A
GB1160673A GB1921266A GB1921266A GB1160673A GB 1160673 A GB1160673 A GB 1160673A GB 1921266 A GB1921266 A GB 1921266A GB 1921266 A GB1921266 A GB 1921266A GB 1160673 A GB1160673 A GB 1160673A
Authority
GB
United Kingdom
Prior art keywords
colour
ordinates
elements
steps
opaque
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
GB1921266A
Inventor
Edward Atherton
Peter Ralph Bunkall
George Cartridge
William James Marshall
George William Midgelow
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB1921266A priority Critical patent/GB1160673A/en
Priority to FR104956A priority patent/FR1544670A/en
Publication of GB1160673A publication Critical patent/GB1160673A/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
    • 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
    • G01J3/522—Measurement of colour; Colour measuring devices, e.g. colorimeters using colour charts circular colour charts

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Printing Methods (AREA)

Abstract

1,160,673. Colour synthesis. IMPERIAL CHEMICAL INDUSTRIES Ltd. 20 April, 1967 [2 May, 1966], No. 19212/66. Heading G4B. [Also in Division G2] A device for the synthesis of colours comprises (a) a plurality of opaque coloured elements displaying the three subtractive primary colours in steps of increasing colour strength and binary combinations of those primary colours also in steps of increasing colour strength; and (b) a plurality of transparent elements displaying a neutral grey colour in steps of increasing colour strength, the opaque elements being arranged in groups, the groups or each group being mounted on backing material and any selected transparent element being superimposable at will upon any selected opaque element. In the embodiment of Figs. 1 and 2 the device comprises a threepage colour atlas, the page shown including elements 3 which are combinations of the colours cyan and yellow, and a mask 6 including a holder 7 for transparent film carrying the neutral grey elements. The mask may be positioned so that any one element 3 can be viewed through apertures (10) (Fig. 3, not shown), 11. The various colour and neutral grey strengths are indicated by reference characters e.g. CO-C15, YO-Y15. Also disclosed is a method of colouring a substrate to match a given coloured pattern comprising the steps of (a) synthesizing by means of the device a colour matching the pattern; (b) assigning reference co-ordinates to the combination of the selected opaque element and transparent element; (c) transmitting these co-ordinates together with other necessary data concerning the substrate, the dyes or pigments to be used and the coloration process to be employed to computer means which is programmed to convert the information into a colouring recipe; (d) preparing a colouring composition in accordance with the recipe; and (e) applying the composition to the substrate using the process. The reference coordinates may be the tristimulus values. The co-ordinates may be read directly from the device using a tristimulus colorimeter or a spectrophotometer, or the reference characters may first be read and then using tables converted into the reference co-ordinates. Alternatively the characters may be fed to a computer memory store which corelates the characters with the appropriate co-ordinates.
GB1921266A 1966-05-02 1966-05-02 Device for Colour Synthesis Expired GB1160673A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1921266A GB1160673A (en) 1966-05-02 1966-05-02 Device for Colour Synthesis
FR104956A FR1544670A (en) 1966-05-02 1967-05-02 A device for synthesizing and identifying colors, and a mathematical method for predicting color match using such a device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1921266A GB1160673A (en) 1966-05-02 1966-05-02 Device for Colour Synthesis

Publications (1)

Publication Number Publication Date
GB1160673A true GB1160673A (en) 1969-08-06

Family

ID=10125594

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1921266A Expired GB1160673A (en) 1966-05-02 1966-05-02 Device for Colour Synthesis

Country Status (1)

Country Link
GB (1) GB1160673A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3600200A1 (en) * 1986-01-07 1987-10-22 Michael M Micklei Colour table for the reproducible determination of colours
EP1584903A1 (en) * 2003-01-14 2005-10-12 Mimoto Gousei Jyushi Kabushiki Kaisha Method of color specification and, using the same, color column structure and color chart

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3600200A1 (en) * 1986-01-07 1987-10-22 Michael M Micklei Colour table for the reproducible determination of colours
EP1584903A1 (en) * 2003-01-14 2005-10-12 Mimoto Gousei Jyushi Kabushiki Kaisha Method of color specification and, using the same, color column structure and color chart
EP1584903A4 (en) * 2003-01-14 2008-04-23 Matsuhashi Fumio Method of color specification and, using the same, color column structure and color chart

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees