Patent
1979-01-26
1980-07-08
Skogquist, Harland S.
G09B 1900
Patent
active
042110165
ABSTRACT:
The invention provides a method and chart for organizing, developing and depicting a multipigment scale of colors based on at least five basic colors and any chosen number of subdivisions therebetween. The method and chart are based on the development of a two dimensional array of a plurality of planar triangular groupings of distinct color points wherein the apices of each triangular grouping represents the color extremes of said groupings and the remaining color points within said grouping are arranged in equidistant transitional color intervals between said apices and between the apices of any subtriangles definable within the groupings, the groupings representing planar cuts of an m-1 dimensional pyramid the apices of which pyramid represent the basic colors chosen. Each color point in said array is assigned a composite coordinate value having a number of component coordinates equal to the number of basic colors used and representing the absolute amount of each basic color component of said color point, wherein the sum of all composite coordinate values for each point within the array is equal.
REFERENCES:
patent: 3474546 (1969-10-01), Wedlake
patent: 3751829 (1973-08-01), Foss
patent: 4009527 (1977-03-01), Scott et al.
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