Patent ID: 6951558

Claim:
A method of delivering electromagnetic radiation onto tissue to be treated therewith, said tissue defining a treatment plane, the method comprising the steps of: (a) providing a lightguide, said lightguide having an entrance end an exit-end; (b) directing the radiation into said lightguide such that a beam of said radiation emerges from said exit-end of said lightguide; (c) providing an optical projection arrangement including a plurality of lenses cooperatively arranged with said lightguide, said optical elements arranged on an optical axis with a first of said lenses arranged to receive said beam of radiation emerging from said exit-face of said lightguide; (d) passing said beam of radiation through said lenses to form a treatment spot of said radiation in the treatment plane, (e) causing one or more of said lenses to move in a direction transverse to said optical axis lens such that said treatment spot undergoes a related transverse motion in the treatment plane.