FIELD: medical equipment.
SUBSTANCE: radiation-based skin treatment device comprises a laser radiation source to deliver a pulsed beam of radiation for skin treatment by laser-induced optical breakdown of hair or skin tissue. In one arrangement, the focusing system has a pre-focusing lens for increasing convergence of the incident radiation beam and a skin contact lens having convex radiation input and radiation output surfaces. Position of the focal spot is controlled by adjusting the gap between the pre-focusing lens and the skin contact lens. In another arrangement, an adjustable system of lenses takes place before the adjustable focusing system to provide compensation of aberration in the controlled focusing system.
EFFECT: radiation-based skin treatment device is disclosed.
10 cl, 7 dwg
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