Hair treatment system
2 Assignments
0 Petitions
Accused Products
Abstract
Embodiments of methods and systems for hair treatment are disclosed. According to various embodiments, light is used to shave, trim, or otherwise modify hair shafts.
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Citations
45 Claims
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1-28. -28. (canceled)
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29. A depilation device comprising:
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a) a housing having at least one active surface and sized and configured to be held by a human hand;
b) at least one light source housed within said housing;
c) at least one lens configured to modify light from said light source to produce a beam having a short, narrow beam waist of limited spatial extent, said beam exiting said active surface such that said beam waist occurs at a first specified distance range from said active surface;
d) a proximity sensor mounted in said housing and configured for detecting when said active surface of said housing is within a second specified distance range from a skin surface; and
e) a light source driver configured to activate said light source when said proximity sensor indicates that said active surface is within said second specified distance range. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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45. A depilation device comprising:
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a) a housing having at least one active surface and sized and configured to be held by a human hand;
b) at least one lens having a numerical aperture of between about 0.64 and about 0.87;
c) at least one light source housed within said housing and producing a beam that exits said housing at said active surface, said beam modified by said lens to have a beam waist with a diameter of between about 1 and about 3 hair diameters that occurs at a first specified distance range from said active surface;
d) a proximity sensor mounted in said housing and configured for detecting when said active surface of said housing is within a second specified distance range from a skin surface;
e) a motion sensor including at least one of an optical sensor, an electromechanical sensor and a mechanical sensor; and
a light source driver configured to activate said light source when said proximity sensor indicates that said active surface is within said second specified distance range.
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Specification