A - Human Necessities – 61 – N
Patent
A - Human Necessities
61
N
354/21, 354/29,
A61N 5/06 (2006.01) G01J 1/42 (2006.01)
Patent
CA 1301326
ABSTRACT In accordance with a method and an apparatus for determining an individual's ability to stand exposure to ultraviolet radiation prior to causing a skin reaction, such as skin cancer or erythema, or for determining an individual's ability to become tanned by exposure to ultraviolet radiation, at least part of the individual's skin surface is exposed to electromagnetic radiation of a predetermined spectral composition, e.g. visible light, and of a predetermined intensity. The intensity of electromagnetic radiation reflected from the part of the individual's skin surface is measured so as to determine the coeffici- ent of reflection of the part exposed to electromagnetic radiation of the predetermined spectral composition. The coefficient of reflection is converted into logarithmic representation and the logarithmic repre- sentation of the coefficient of reflection constitutes a measure repre- senting the individual's ability to stand exposure to ultraviolet radia- tion prior to causing said skin reaction, or into a measure represent- ing said individual's ability to become tanned by exposure to ultra- violet radiation.
532909
Chromo-Light Aps
Mccarthy Tetrault Llp
LandOfFree
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