Measuring apparatus provided with an automatic focussing device
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United States of America Patent
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Feb 14, 1995
Grant Date -
N/A
app pub date -
Oct 28, 1992
filing date -
Oct 31, 1991
priority date (Note) -
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status (Latency Note)
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Abstract
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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