Monte Carlo simulation of light reflection from cosmetic powders on the skin

Takashi Okamoto; Masafumi Motoda; Takanori Igarashi; Keisuke Nakao

doi:10.1117/12.889756

16 June 2011 Monte Carlo simulation of light reflection from cosmetic powders on the skin

Takashi Okamoto, Masafumi Motoda, Takanori Igarashi, Keisuke Nakao

Proceedings Volume 8090, Novel Biophotonic Techniques and Applications; 809015 (2011) https://doi.org/10.1117/12.889756
Event: European Conferences on Biomedical Optics, 2011, Munich, Germany

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.

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Takashi Okamoto, Masafumi Motoda, Takanori Igarashi, and Keisuke Nakao "Monte Carlo simulation of light reflection from cosmetic powders on the skin", Proc. SPIE 8090, Novel Biophotonic Techniques and Applications, 809015 (16 June 2011); https://doi.org/10.1117/12.889756

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KEYWORDS

Skin

Particles

Light scattering

Monte Carlo methods

Reflection

Scattering

Color difference

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