Patent ID: 9658109
Date: 2017-05-23
CPC Classifications: G01J

Claim:
1. A non-contact thermal sensor module comprising: first and second optics substrates on each of which is a respective optical element; a sensor package including a thermal sensor; a first spacer separating the first optics substrate and the second optics substrate from one another; and a second spacer separating the second optics substrate and the sensor package from one another, the second spacer, the second optics substrate, the first spacer and the first optics substrate forming a stack over the sensor package in that order, the first and second spacers having inner surfaces facing an interior region of the module, wherein the first optics substrate is transparent to infra-red radiation, wherein the second optics substrate has an aperture substantially aligned with the thermal sensor, and wherein the first and second spacers are composed of, or coated with, a low emissivity material having an emissivity of no more than 0.1.