METHOD AND APPARATUS FOR PERFORATION OF SHEET MATERIAL BY LASER

METHOD AND APPARATUS FOR PERFORATION OF SHEET MATERIAL BY LASER In providing perforation uniformity both in the spacing between multiple rows of perforations in sheet material and in the spacings among perforations within each row, a common laser beam is shared among the rows, being directed to the...

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Main Authors CLAFLIN, WARREN E, STULTZ, EDWARD B, MARTIN, PETER, LILLY, A. CLIFTON, JR, BROOKS, ULYSSES A
Format Patent
LanguageEnglish
French
Published 24.08.1982
Subjects
CIGARETTES
CIGARS
CLADDING OR PLATING BY SOLDERING OR WELDING
CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING
HUMAN NECESSITIES
MACHINE TOOLS
MACHINES FOR MAKING CIGARS OR CIGARETTES
METAL-WORKING NOT OTHERWISE PROVIDED FOR
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PERFORMING OPERATIONS
PHYSICS
SMOKERS' REQUISITES
SOLDERING OR UNSOLDERING
TOBACCO
TRANSPORTING
WELDING
WORKING BY LASER BEAM
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Summary:METHOD AND APPARATUS FOR PERFORATION OF SHEET MATERIAL BY LASER In providing perforation uniformity both in the spacing between multiple rows of perforations in sheet material and in the spacings among perforations within each row, a common laser beam is shared among the rows, being directed to the sheet material through a common focusing element for each adjacent pair of rows. In conducting the laser beam to each such common focusing element, a pair of modified beams is derived from the laser beam, each modified beam having light ray content divergent about an axis of symmetry thereof which is parallel to the optical axis of the focusing element. *
Bibliography:Application Number: CA19790329184