| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a skin treatment device comprising a laser source 40 and focusing optics 50, such that a focal spot 18 is positioned in a dermis layer 24 of the skin to be treated. <P>SOLUTION: A laser beam 42 is output and focused 16 such that an LIOB (laser induced optical breakdown) is obtained, which affects the skin in order to stimulate re-growth of tissue. This in turn reduces wrinkles 30. The device may comprise wrinkle-determining means 52, 54, 56, 58. The focusing optics 50 may have a numerical aperture of at least 0.4. The invention also provides a corresponding method to treat skin, in particular to reduce wrinkles 30, by providing a focused laser beam 16 that causes LIOB in the dermis layer 24 of the skin. The advantage is that damage to overlaying epidermis layers may be avoided by the use of the very local LIOB phenomenon. <P>COPYRIGHT: (C)2013,JPO&INPIT |
