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TO SATISFY THE LIGHTING QUALITY REQUIREMENT OF THE INTEGRATED CHIP,HIGH POWER CHIP,TO DEVELOP THE LED LIGHTING MODULES AND TO IMPLEMENT A VARIETY OF LIGHT DISTRIBUTION FORM,USING THE GLOBAL OPTIMIZATION ALGORITHM AND THREE-DIMENSIONAL EXTENSION QUANTITY CONSERVATION METHOD,THESE CAN GET THE DIFFERENTIAL EQUATION FOR FREE-FORM SURFACES ON WHICH INCLUDE RESPECTIVELY DIFFERENT SHINY SURFACE AND THE SPACE POINT LOCATION OF THE LIGHT SOURCE.