Patent ID: 8115410

Claim:
Method for generating a table of color points associated with a system of three or more light sources, the method comprising the steps of: in a first color space, determining a ceiling plane as the collection of all color points where at least one of said light sources has maximum intensity, the first color space being a color space in which brightness is an independent coordinate; determining the boundary curve of said ceiling plane; determining the primary color points of said light sources on said boundary curve; in respect of at least one pair of neighboring primary color points, defining a predetermined number of intermediate color points located on the said boundary curve between said pair of neighboring primary color points, thus dividing the said boundary curve into curve sections; in respect of each boundary curve section, defining a predetermined number of auxiliary color points located on the said boundary curve section, such that these auxiliary color points divide the said boundary curve section into curve segments of mutually equal lengths as measured in a perceptual uniform second color space; selecting a white point; defining a plurality of spoke lines of constant hue, located in the said ceiling plane, each spoke line connecting the white point with a corresponding one of the color points defined on the said boundary curve; in respect of each spoke line, defining a predetermined number of spoke color points located on the said spoke line, these spoke color points being equidistant as measured in the said second color space.