Studies of Light Scattering from Ethnic Hair Fibers

July 2004 in “ International Journal of Cosmetic Science ”

Karin Keis, K. R. Ramaprasad, Y. K. Kamath

hair fibers specular reflectance diffuse reflectance goniophotometric curves luster values hair fiber characteristics diameter cross-sectional shape curvature surface roughness internal scattering absorption processes hair shine hair gloss hair texture

TLDR Different hair types from various ethnic groups affect hair shine due to characteristics like thickness and shape.

The document includes a study that aimed to differentiate between specular and diffuse reflectance in hair fibers from European, African, and Asian ethnic groups. The study analyzed goniophotometric curves of light reflected from unaltered single hair fibers and found that the broadening of the specular peak reduces luster values, which is related to hair fiber characteristics such as diameter, cross-sectional shape, and curvature. A new method for evaluating hair luster from these curves was proposed, and a general model for light scattering was presented, showing how surface roughness and internal scattering and absorption processes affect the specular reflectance peak and its broadening.

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research Studies of Light Scattering from Ethnic Hair Fibers

7 citations , July 2004 in “International Journal of Cosmetic Science”

Different hair types from various ethnic groups affect hair shine due to characteristics like thickness and shape.