Patent ID: 8330392
Filing Date: 2012-12-11
Classification: H05B

Abstract:
1. A system for changing light source intensity, comprising: an input interface to: receive a command intensity for a light source, wherein the light source has a current intensity, and wherein an intensity of the light source is ramped toward the command intensity from the current intensity automatically; and a controller configured to: determine a non-linear curve for the intensity of the light source, wherein the non-linear curve is based at least in part on the command intensity and the light source intensity, and wherein at least a portion of the non-linear curve includes a beginning slope that is steeper than an end slope of the non-linear curve; and cause a change of a light source intensity by ramping over a time interval, wherein the light source intensity targets conforming to the non-linear curve for the intensity of the light source, and wherein beginning causing the change of the light source intensity starts before completion of determining the non-linear curve for the intensity of the light source; and a memory coupled to the controller and configured to store an intensity value.