| 摘要 |
A method of determining the minimal erythemal dose (MED) on exposing the skin of a subject to UV radiation, comprising the following steps: irradiating at least one region (P2) of any kind of the body skin of a subject (S) with at least two radiations, each in a different spectral band (a, b), at least one of which is correlatable only or mainly with the melanin amount present in the skin; carrying out the reflectance (or absorbance) measurement relating to said bands at said irradiation point; calculating the value of the minimal erythemal dose (MED) as a function of the measurements carried out. And a device for putting the method into practice. |
