Managing the Color Temperature for a Light Source Array

Abstract

Providing color management includes receiving measurements of the intensity of colors. A light source generates light beams to yield the colors, where the light beams are generated in accordance to image data to create an image. A target color value is established. A duty cycle sequence operable to control the light source is selected in accordance with the measurements and the target color value. Current levels for currents provided to the light source are selected in accordance with the duty cycle sequence and the target color value.

1 - 20 . (canceled)  
   
   
       21 . A method for providing color management, comprising: 
 receiving color data;    selecting a duty cycle sequence in accordance with said received color data; and    selecting a current level in accordance with the duty cycle sequence, the one or more current levels being for one or more currents provided to a light source.    
   
   
       22 . The method of  claim 21  further comprising: 
 establishing a target color value.    
   
   
       23 . The method of  claim 21 , wherein selecting the duty cycle sequence further comprises: 
 establishing a plurality of target values corresponding to a target color value;    establishing a plurality of first measured values from the color data;    determining a first difference between the target values and the first measured values; and    selecting a duty cycle sequence corresponding to the first difference.    
   
   
       24 . The method of  claim 21 , wherein selecting the duty cycle sequence further comprises: 
 determining a candidate duty cycle sequence in accordance with a target color value and the color data; and    selecting an available duty cycle sequence that is close to the candidate duty cycle sequence.    
   
   
       25 . The method of  claim 21 , wherein selecting the one or more current levels further comprises: 
 establishing a plurality of target values corresponding to a target color value;    establishing a plurality of second measured values corresponding to the selected duty cycle sequence;    determining a second difference between the target values and the second measured values; and    selecting one or more current levels corresponding to the second difference.    
   
   
       26 . The method of  claim 21 , further comprising generating a color matrix by: 
 establishing a plurality of target values corresponding to a target color value;    establishing a plurality of third measured values corresponding to the selected duty cycle sequence and the selected one or more current levels;    determining a third difference between the target values and the third measured values; and    generating the color matrix from the third difference.    
   
   
       27 . The method of  claim 21 , wherein the color data comprise: 
 a plurality of internal measurements, an internal measurement measured at a portion of an optical path prior to a screen with the image is created; and    a plurality of external measurements, an external measurement measured at a portion of the optical path posterior to the screen.    
   
   
       28 . The method of  claim 21 , wherein the color data further comprises: 
 receiving the plurality of measurements comprising a plurality of internal measurements and a plurality of external measurements; and    scaling the internal measurements and the external measurements.    
   
   
       29 . The method of  claim 21 , further comprising providing control information, the control information instructing a light source driver to provide the one or more currents to the light source at the one or more selected current levels.  
   
   
       30 . The method of  claim 21 , further comprising providing control information, the control information instructing the light source to operate according to the selected duty cycle sequence.