Method for analyzing hair

Details Method for analyzing hair Method for analyzing hair

2006-01-10

2008-12-09

Geisel, Kara E (Department: 2877)

Optics: measuring and testing

By shade or color

Reexamination Certificate

active

07463356

ABSTRACT:
An apparatus for analyzing a sample hair mixture having a mixture of two hair colors and an overall spectrum representative of the two colors, comprising: a first color selector, configured to select a first spectrum representative of a first color in the hair mixture from a first group of at least one spectrum, and an iterative spectrum combiner, associated with the first color selector and configured to iteratively combine therewith a second spectrum representative of a second color in the hair mixture from a second group of spectra over the first spectrum, thereby to find an optimal combination of first and second spectrum which is a closest match to the overall spectrum.

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patent: 2005/0036677 (2005-02-01), Ladjevardi

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