Cal Sensors Inc. has launched a broadband emitter that it says provides higher output than standard steady-state emitters of blackbody radiation, with similar spectral distribution. The radiating element is a coiled filament of proprietary material with a specialized coating for emissivity of 0.70. The filament and a new generation of reflectors boost output efficiency. The emitter operates at a filament temperature of 1170 K, and input power ranges from 1.15 to 2.1 W. It is available in a TO-5 windowless package that provides long-term stability and long lifetime, without the spectral attenuation associated with window materials.

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