Method and device for detection of multiple flame types

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United States of America Patent

PATENT NO 9587987
APP PUB NO 20130234028A1
SERIAL NO

13417644

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Abstract

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A flame detector includes an infrared detector and a first window covering the infrared detector. A second window is positioned in front of the first window. The flame detector is adapted to reject light having a wavelength below approximately 2 μm and to reject light having a wavelength above approximately 6 μm, allowing detection of flame from multiple sources. In variations, the windows in combination with the infrared detector may provide the rejection or a band pass filter provides the rejection. Still further variations utilize notch filters or a band reject filter to provide notches of light to the infrared detector corresponding to the wavelength of different flame sources to be detected.

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Patent Owner(s)

Patent OwnerAddress
HONEYWELL INTERNATIONAL INC115 TABOR ROAD P O BOX 377 MAIL STOP 4D3 MORRIS PLAINS NJ 07950

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cole, Barrett E Bloomington, US 113 2101
Larsen, Christopher Scott Rockford, US 22 199

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