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Tri-stimulus
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A method for communicating or generating a color using three stimuli; either additive or subtractive colorants (such as rgb or cmy), or three attributes (such as lightness, chroma, and hue.)
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Generating, английский
A rapid roughing process to quickly remove material from a lens. accomplished by cutting tools on a machine. generator, free-form – a type of computercontrolled generator with at least three axes of movement that can cut most continuous lens surface shapes to a level of precision and smoothness that requires only minimal polishing with a free-form polisher. generator, traditional – a type of generator with either two or three axes of movement that can cut only basic spherical and sphero-cylindrical lens surface shapes to a minimal level of smoothness that requires additional fining with a cylinder machine.
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Tri-stimulus data, английский
The three tri-stimulus values that combine to define or generate a specific color, such as r255/g255, b 0. tri-stimulus data does not completely describe a color, the illuminant must also be defined. also, in device dependent color models such as rgb, the
Tranmissive object, английский
An object that allows light to pass through from one side to the other. the color of a transmissive object results from the manipulation of wavelengths of light as they pass through.
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