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Proceedings Paper

Monte Carlo simulation of light reflection from cosmetic powders on the skin
Author(s): Takashi Okamoto; Masafumi Motoda; Takanori Igarashi; Keisuke Nakao
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Paper Abstract

The reflection and scattering properties of light incident on skin covered with powder particles have been investigated. A three-layer skin structure with a spot is modeled, and the propagation of light in the skin and the scattering of light by particles on the skin surface are simulated by means of a Monte Carlo method. Under the condition in which only single scattering of light occurs in the powder layer, the reflection spectra of light from the skin change dramatically with the size of powder particles. The color difference between normal skin and spots is found to diminish more when powder particles smaller than the wavelength of light are used. It is shown that particle polydispersity suppresses substantially the extreme spectral change caused by monodisperse particles with a size comparable to the light wavelength.

Paper Details

Date Published: 16 June 2011
PDF: 7 pages
Proc. SPIE 8090, Novel Biophotonic Techniques and Applications, 809015 (16 June 2011); doi: 10.1117/12.889756
Show Author Affiliations
Takashi Okamoto, Kyushu Institute of Technology (Japan)
Masafumi Motoda, Kyushu Institute of Technology (Japan)
Takanori Igarashi, KAO Corp. (Japan)
Keisuke Nakao, KAO Corp. (Japan)

Published in SPIE Proceedings Vol. 8090:
Novel Biophotonic Techniques and Applications
Henricus J. C. M. Sterenborg; I. Alex Vitkin, Editor(s)

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