The use of human skin reflectance spectra for the quantitative assessment of individual sensitivity to ultraviolet radiation

: Reflection spectra of human skin of various ethnic types in the range of 370-790 nm were measured and analyzed. Correlation between reflection coefficients and minimal erythemal doses was estimated. The formula has been devised which is suitable for defining minimal erythemal doses both for open and closed parts of the body irrespective of pre-exposition to sun radiation.