Question

How did the “infrared thermometer” come about?

Answer 1

NASA

Step-by-step explanation:

An infrared thermometer is a thermometer which infers temperature from a portion of the thermal radiation sometimes called black-body radiation emitted by the object being measured. ... Infrared thermometers are a subset of devices known as "thermal radiation thermometers".

Answer 2

Step-by-step explanation:

NASA - created it

1899 - invented

The earliest infrared thermometer (IRT) was known as the disappearing-filament optical pyrometer. 1899, The first patent for disappearing-filament optical pyrometer: The first patent for the optical pryometer was granted to Morse in 1899.