Active night vision thermal control system using wavelength-temperature characteristic of light source
AssigneeFord Global Technologies, LLC
InventorsJeffrey T. Remillard, Kenneth Nietering
Life of this patent
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Abstract
A thermal control system (11) for a light source (46) of a vision system (10) includes a heater (63) that is thermally coupled to the light source (46). A thermal sensor (60) is thermally coupled to the light source (46) and generates a temperature signal. A controller (50) is coupled to the heater (63) and to the thermal sensor (60) . The controller (50) operates the heater (63) when the temperature signal is below a maximum temperature limit. The minimum and maximum temperature limits are obtained from the light-source wavelength-temperature characteristic.
Claims3
A vision system of a vehicle comprising:
- an illuminator assembly having a light source and generating an illumination beam with a first center wavelength;
- an adjustable filter having an adjustable second center wavelength;
- a controller coupled to the filter and controlling generation of said illumination beam and controlling second center wavelength of the filter in response to the center wavelength of the light source.
Dependencies are inferred from the claim text.