Minolta Company, Ltd.

Seishiro Itoh

Masayuki Yamada

Tatsuaki Kusatsugu

Satoshi Aoyama

Hiroji Tsujimura

A radiation thermometer includes a temperature sensor for detecting an intensity of infrared radiation of light, a measuring optical system for introducing light from an object to the temperature sensor, a calculator for calculating a temperature of the object based on a detected infrared radiation intensity, a viewfinder for allowing the operator to visually recognize the object, a viewfinder optical system for introducing light from the object to the viewfinder, a focus detector for detecting focus condition of the measuring and viewfinder optical systems, and a controller responsive to the focus detector for controlling the measuring and viewfinder optical systems so as to come into a desired focus condition.

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Toyokawa, Japan

Seishiro Itoh