Flame detection device
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United States of America Patent
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Oct 19, 2004
Grant Date -
Jul 17, 2003
app pub date -
Oct 9, 2002
filing date -
Jan 11, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
A flame detection device for detecting a flame caused by a fire, including a light attenuation filter for attenuating 90% or greater of light with wavelengths in a visible to near-infrared band radiated from the flame. The flame detection device further includes an imager for photographing an image of the attenuated light incident thereon, and a processing section for deciding the flame from the image obtained by the imager.
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