Thermal imager having sunlight exposure protection mechanism

Thermal measuring and testing – Temperature measurement – In spaced noncontact relationship to specimen

Reexamination Certificate

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C374S133000, C374S121000, C250S338100, C356S043000

Reexamination Certificate

active

07484885

ABSTRACT:
A thermal imaging apparatus comprises a housing defining an entrance pupil for ingress of imaging radiation. At least one light sensor is positioned forward of the entrance pupil. An electronic imaging device such as a focal plane array is located in the housing rearward of the entrance pupil for converting imaging radiation to electrical signals for further processing. The apparatus further includes a shutter having an open position and a closed position. In the closed position, the shutter is located between the entrance pupil and the electronic imaging device so as to inhibit exposure of the electronic imaging device to incident radiation. Circuitry is provided for selectively operating the shutter to be in the closed position based on signals produced at the light sensor.

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Manual entitled “ThermoView Ti30 High Performance Thermal Imager for Predictive Maintenance,” bearing a copyright date of 2003.

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