초록 ▼

Laser processes such as cutting, drilling, and welding metals and other materials are performed manually with a hand held fiber optic laser tool. A near infrared or visible wavelength pulsed laser beam is coupled to the tool by a single clad quartz fiber whose ends are prepared to reduce losses and

Laser processes such as cutting, drilling, and welding metals and other materials are performed manually with a hand held fiber optic laser tool. A near infrared or visible wavelength pulsed laser beam is coupled to the tool by a single clad quartz fiber whose ends are prepared to reduce losses and which transmits laser energy with peak powers in the kilowatt range to the output end. The hand held laser tool is comprised of focusing optics for the laser beam, an inert gas supply for welding cover gas, and an oxygen supply for gas assist cutting.

대표청구항 ▼

A laser system for manual material processing comprising: a laser which produces a near infrared or visible wavelength beam; a single fiber optic serving as a lightguide; an input coupler to shape said laser beam to enter said fiber optic which transmits laser energy to the output end with peak powe

A laser system for manual material processing comprising: a laser which produces a near infrared or visible wavelength beam; a single fiber optic serving as a lightguide; an input coupler to shape said laser beam to enter said fiber optic which transmits laser energy to the output end with peak powers in the kilowatt range; and a hand held laser tool comprised of means for holding the output end of said fiber optic, means for focusing the emerging beam to a small spot at a high enough power density to do industrial laser material processing, and means for delivering process assist gas; said fiber optic having a core, a cladding and protective shielding, and both ends of said fiber are prepared to reduce Fresnel losses by removal of said cladding and shielding for a short distance and removal of only said cladding for an equal distance.