Active night vision thermal control system using wavelength-temperature characteristic of light source
US7368714B2 · kind B2 · utility
107Cited by
1References
5Claims
0Family size
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Key dates
| Filing date | Sep 30, 2007 |
| Grant date | May 6, 2008 |
| Priority date | — |
| Expiry date | Sep 30, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0138
- WIPO fieldOptics
- WIPO sectorInstruments
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 tight 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.