Patent Document ID: 8330822
Application ID: 12797410
Patent Status: 1

Claim One:
1. A thermal tuning system for a light source of a depth camera, the depth camera including the light source for generating illumination light and a light sensor for generating light intensity data from reflected illumination light, the thermal tuning system comprising: a reflective target; and a thermal tuning station comprising: a memory, a processor, and a thermal tuning module executed by processor of the tuning station using portions of the memory and comprising instructions to, in a thermal tuning mode of the light source executed during a manufacturing process: illuminate a reflective target with illumination light from the light source at a plurality of light source tuning temperatures, for each light source tuning temperature, sense an intensity of reflected illumination light received at the light sensor through a light filter positioned intermediate the reflective target and the light sensor; approximate a frequency response relationship between a cutoff frequency of the light filter and an emission wavelength of the light source based on a comparison of sensed intensities and stored intensity reference data; generate a static operating temperature set point for the light source so that the emission wavelength of the light source does not overlap the cutoff frequency of the light filter by more than a predetermined permissible overlap threshold; and program a light source temperature controller to control a light source operating temperature to the static operating temperature during depth camera operation.