Method and apparatus for treating a surface with a scanning lase

Details Method and apparatus for treating a surface with a scanning lase Method and apparatus for treating a surface with a scanning lase

1997-10-10

1999-11-30

Phan, James

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359203, 359208, G02B 2608

Patent

active

059952652

ABSTRACT:
A method and apparatus are disclosed for laser treatment of surfaces, such as tissue. In a preferred embodiment, the invention employs a unique reflective optical delivery system which produces an improved beam intensity cross-section which reduces thermal injury, increases the precision of the tissue interaction and allows the creation of craters with decreased sizes. Reflective optics provide precise, single-layer vaporization at low power levels without thermal injury to the underlying papillary dermis. Movable optical elements focus and direct the laser beam in a scanning pattern to treat a large area of the surface.

REFERENCES:
patent: 5128509 (1992-07-01), Black et al.
patent: 5546214 (1996-08-01), Black et al.
patent: 5786924 (1998-07-01), Black et al.

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