Color system

• US 5,161,974 A
• Filed: 01/27/1992
• Issued: 11/10/1992
• Est. Priority Date: 01/27/1992
• Status: Expired due to Fees

• Current Assignee: Jean Bourges
• Original Assignee: Jean Bourges
• Inventors: Bourges, Jean
• Primary Examiner(s): Mancene, Gene
• Assistant Examiner(s): CHERICHETTI, CINDY
• Application Number:
  US07/826,107
• Time in Patent Office: 288 Days
• Field of Search: 434/98, 434/84
• US Class Current: 434/98
• CPC Class Codes: G01J 3/52 using colour charts
• CPC Class Codes: G09B 19/0023 Colour matching, recognition, analysis, mixture or the like

Abstract

A color value classification system particularly suited for use in printing procedures based upon the cyan, magenta and yellow primary colors, including both traditional and digital color separation methods, as well as all types of other printing systems. The classification is based upon four groups of five colors each, in which half of the colors are the substan- tial complements of the remaining half. The twenty colors are derived from the blending of the basic primary colors known as process colors in the printing industry.

Claims

1. In an improved color system for identifying hues of specific colors to facilitate the reproduction thereof, said system consisting of four color groups, each group including five hues;

a first group of hues comprising the reds and ranging in wave length from 700 to 610 nanometers;

a second group of hues comprising the yellows and ranging in wave length between 610 and 570 nanometers;

a third group of hues comprising the greens and ranging from 570 to 590 nanometers; and

a fourth group of hues comprising the blues ranging from 490 to 400 nanometers, the improvement comprising;

the basing of said hues upon standardized process colors of cyan, magenta, and yellow, said hues being derived by the blending of said process colors in accordance with the following chart;

space="preserve" listing-type="tabular">______________________________________ Hues Color Number C M Y ______________________________________ 1 30 100 -- 2 -- 100 -- 3 -- 100 30 4 -- 100 60 5 -- 100 100 6 -- 80 100 7 -- 60 100 8 -- 40 100 9 -- 20 100 10 -- -- 100 11 50 -- 100 12 100 -- 100 13 100 -- 70 14 100 -- 50 15 100 -- 30 16 100 -- -- 17 100 30 -- 18 100 60 -- 19 100 100 -- 20 70 100 -- ______________________________________

wherein the indicated values represent parts by volume.