Patent ID: 6791060
Filing Date: 2004-09-14
Classification: B23K,H05K

Abstract:
A laser system, comprising:a diode-pumped, solid-state laser for generating ultraviolet Gaussian laser output having a Gaussian energy along an optical path; a beam-shaping element positioned along the optical path for converting the Gaussian laser output to shaped output having a central irradiance profile of high and uniform intensity and an outer irradiance profile of low intensity; a variable beam expansion assembly positioned along the optical path between the laser and the beam-shaping element; an aperture positioned along the optical path for clipping a major portion of the outer irradiance profile of the shaped output and passing at least 50% of the Gaussian energy through the aperture to produce apertured shaped output having apertured shaped energy; one or more imaging lens components for converting the apertured shaped output into image shaped output; and a positioning system for directing the imaged shaped output toward a target location on a work piece.