RESUMO

Hemoglobin localization in erythrocytes is shown to lead to a decrease of their apparent absorption coefficient in the blue spectral range. This effect is quantitatively evaluated by using analytical relations. The replacement of erythrocytes by equivalent spheres is considered to simplify the final calculation formulas. The spheres with the same volume as that of erythrocytes is shown can be used for single red blood cells or for their rouleau with small number of erythrocytes. For rather a long rouleau, the spheres with the same ratio of their volume to surface are applicable. The asymptotic behavior of the absorption decrease and its influence on absorption coefficient of skin dermis are studied.