Determination of a degree of elongation of hair using a NIR sensor

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United States of America Patent

PATENT NO 11857332
APP PUB NO 20210204865A1
SERIAL NO

17055024

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Abstract

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An arrangement for determining a degree of stretching of hair is provided. The arrangement includes a detection unit for detecting hair characteristics and an evaluation unit for evaluating the detected hair characteristics and for determining the degree of elongation of hair based on the detected hair characteristics. The detection unit contains a near-infrared sensor, and is configured to irradiate a hair sample with electromagnetic waves in the infrared range and to detect an absorbance of the hair sample in a wavelength range from about 800 to about 2500 nm. The acquisition unit is configured to generate an absorption spectrum of the hair sample in the wavelength range of from about 800 to about 2500 nm and provide it to the evaluation unit and the evaluation unit is configured to compare the generated absorption spectrum with a calibration model and to determine a degree of elongation of the hair sample.

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Patent Owner(s)

Patent OwnerAddress
HENKEL AG & CO KGAAHENKELSTRASSE 67 DUESSELDORF 40589

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bonnin, Lucile Berlin, DE 10 3
Knuebel, Hans Georg Duesseldorf, DE 10 11
Koenen, Annika Grevenbroich, DE 20 19
Kroos, Astrid Monheim, DE 26 46
Schulze, Zur Wiesche Erik Bielefeld, DE 127 290

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