LASER APPARATUS FOR CUTTING BRITTLE MATERIAL WITH ASPHERIC FOCUSING MEANS AND A BEAM EXPANDER

An apparatus for cutting brittle material comprises an aspheric focusing lens, an aperture, and a laser-source generating a beam of pulsed laser-radiation. The aspheric lens and the aperture form the beam of pulsed laser-radiation into an elongated focus having a uniform intensity distribution along...

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Hauptverfasser: DEILE, Jochen, GREENBERG, Michael, R, GAUDIOSI, David, M
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Sprache:eng ; fre ; ger
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creator DEILE, Jochen
GREENBERG, Michael, R
GAUDIOSI, David, M
description An apparatus for cutting brittle material comprises an aspheric focusing lens, an aperture, and a laser-source generating a beam of pulsed laser-radiation. The aspheric lens and the aperture form the beam of pulsed laser-radiation into an elongated focus having a uniform intensity distribution along the optical axis of the aspheric focusing lens. The elongated focus extends through the full thickness of a workpiece made of a brittle material. The workpiece is cut by tracing the optical axis along a cutting line. Each pulse or burst of pulsed laser-radiation creates an extended defect through the full thickness of the workpiece.
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The aspheric lens and the aperture form the beam of pulsed laser-radiation into an elongated focus having a uniform intensity distribution along the optical axis of the aspheric focusing lens. The elongated focus extends through the full thickness of a workpiece made of a brittle material. The workpiece is cut by tracing the optical axis along a cutting line. 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subjects CHEMISTRY
CLADDING OR PLATING BY SOLDERING OR WELDING
CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING
GLASS
MACHINE TOOLS
MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
METAL-WORKING NOT OTHERWISE PROVIDED FOR
METALLURGY
MINERAL OR SLAG WOOL
PERFORMING OPERATIONS
SOLDERING OR UNSOLDERING
TRANSPORTING
WELDING
WORKING BY LASER BEAM
title LASER APPARATUS FOR CUTTING BRITTLE MATERIAL WITH ASPHERIC FOCUSING MEANS AND A BEAM EXPANDER
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