Substance detection device

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United States of America Patent

PATENT NO 9787907
SERIAL NO

14846938

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Abstract

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A substance detection device includes an illuminator that illuminates a monitoring range with light at a first wavelength and light at a second wavelength at different timings, an image capturer that obtains a first actual image by capturing an image of the monitoring range which is illuminated by the light at the first wavelength and obtains a second actual image by capturing an image of the monitoring range which is illuminated by the light at the second wavelength, and an image processor that acquires a difference in lightness of corresponding pixels between the first actual image and the second actual image that are obtained by the image capturer, compares the acquired difference in lightness of the corresponding pixels with a reference value, and detects a specific substance that is present in the monitoring range based on a result of the comparison.

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Patent Owner(s)

Patent OwnerAddress
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTDOSAKA-SHI OSAKA 540-6207

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Itoh, Tatsuo Osaka, JP 127 3491
Kusukame, Koichi Nara, JP 94 809

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