Patent ID: 7795822
Filing Date: 2010-09-14
Classification: G03B,G09G,H04N,H05B

Abstract:
1. A light source controller comprising: a light source driver configured to supply a drive current to a solid-state light source; a light amount sensor configured to detect an outgoing light amount from the solid-state light source; a memory configured to store property information indicating a relationship between the drive current and the outgoing light amount, for each of environmental temperatures of the solid-state light source; and a controller configured to control the drive current supplied from the light source driver, wherein, the controller obtains from the memory the property information corresponding to the environmental temperature of the solid-state light source, according to the relationship between the drive current supplied from the light source driver and the outgoing light amount detected by the light amount sensor, and the controller controls the drive current so as to bring the outgoing light amount close to a target light amount, according to the property information obtained.