Wave-collecting device of non-contact type thermometer
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United States of America Patent
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Issued Date -
Apr 22, 2004
app pub date -
Oct 10, 2002
filing date -
Oct 10, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A wave-collecting device of a non-contact type thermometer comprises a main body. An ellipsoid groove is disposed in the main body. The groove can be composed of at least two inclined planes. An opening is disposed at the bottom of the ellipsoid groove and located above a focus thereof. An ellipsoid reflecting mirror is disposed on the surface of the ellipsoid groove. A sensor is disposed below the opening at the bottom of the ellipsoid groove. The detection head of the sensor is located at the focus. In addition to being directly incident onto the sensor, infrared rays emitted by a target at the other focus of the ellipsoid groove can be reflected by the ellipsoid reflecting mirror once to be focused onto the sensor. Therefore, stable and reliable infrared energy reception can be accomplished. Moreover, the advantage of low cost can be achieved.
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