Method of and an apparatus for determining a value of a skin characteristic for application of permanent make-up or tattooing to the skin
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United States of America Patent
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Issued Date -
Nov 18, 2004
app pub date -
Feb 26, 2004
filing date -
Feb 26, 2003
priority date (Note) -
Abandoned
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Abstract
The invention relates to a method of and an apparatus for determining a value of a skin characteristic, especially of a type of skin, for the application of permanent make-up or tattooing to the skin. The method comprises the following steps: generating light rays (2) by means of a light source (1); irradiating a test sector (3) of a skin (4), to which tattooing or permanent make-up is to be applied by means of color, with the light rays (2); measuring test light rays (5) formed in the test sector (3) by irradiation with the light rays (2), by a detector means (6) to generate measured electrical test light values of the test light rays (5); processing the measured electrical values by an electronic processing means (7) to determine a characteristic value which is a measure of a characteristic of the skin (4) in the test sector (3) and which is to be taken into account when applying permanent make-up or tattooing to the skin (4); and outputting the characteristic value via an output means (8).
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