Patent ID: 8061874

Claim:
A coloring device for an optical system, comprising: a first coloring device, having a coloring surface, divided into a plurality of primary sections, each defining a specified area of said coloring surface, including a first section formed with a first subtractive primary color section covering a first area and having a color over said first subtractive primary color section, and a second subtractive primary color section covering a second area and having a color over said first subtractive primary color section, and including at least one mixing section covering a third area in between said first subtractive primary color section and said second primary subtractive color section, where said mixing section has a varying color over said third area, and forms varying amounts of blend between said first subtractive primary color section and said second primary subtractive color sections, said mixing section corresponding to a color that corresponds to a subtractive combination of said first and second subtractive primary color sections that continually varies across said third area and where said blend provides an area of continuously variable hue between said first subtractive primary color section and said second primary subtractive color section and allows a smooth transition when fading between said first subtractive primary color section and said second primary subtractive color section, wherein said coloring surface includes a third subtractive primary color section, wherein said first, second and third subtractive primary color sections include cyan, magenta and yellow, and further comprising a second coloring device, separate from said first coloring device, said second coloring device having a magenta color, that is more deeply magenta saturated than any magenta color on said third subtractive primary color section of said first coloring device.