Patent ID: 8760462
Filing Date: 2014-06-24
Classification: B44D

Abstract:
1. A method of operating a color mixing apparatus comprising the steps of a. providing a plurality of primary color channels of the color mixing apparatus, wherein the radiant light output of each channel is modulated by a digital-to-analog (DAC) value; b. selecting a plurality of linear values (LIN) from a black point to a WHITE parameter, wherein the WHITE parameter is the DAC value of each primary channel where a combination of WHITE values for all the primary channel produces a standard white color; c. selecting a first linear mathematical expression that relates the DAC values to the LIN values; d. setting the DAC values of each primary color channel of the color mixing apparatus so that the combined outputs of the primary color channels are achromatic for each LIN value; and e. solving the linear equations using a matrix method.