A 0.25µm logarithmic CMOS imager for emissivity-compensated thermography

Here, we present a logarithmic CMOS imager for emissivity-compensated thermography, having thermally-stable and optimized inorganic multilayer integrated filters and a pixel cell containing a subthreshold load transistor with optimized device layout, providing VGA resolution, 40fps, a measuring temperature range of 600 degC to 3000 degC, and a temperature resolution of
_~
5 degC.