Patent ID: 7994732
Filing Date: 2011-08-09
Classification: H05B

Abstract:
1. A method for changing light source intensity, comprising: receiving a command intensity for a light source, wherein the light source has a current intensity, wherein a starting intensity is equal to the current intensity when the command is received, and wherein the light source intensity is ramped toward the command intensity from the current intensity automatically using a higher bit resolution than the command intensity; determining a sequence of at least three steps in intensity for the light source, wherein each step of the sequence is used to change the light source intensity from the starting intensity toward the command intensity, and wherein each of the at least three steps of the sequence are progressively smaller; and causing a light source intensity change by ramping, wherein the sequence of the at least three steps in intensity for the light source are added each in turn to the current intensity with a time interval occurring between each of the at least three steps of the sequence.