Method and system for laser perforation of sheet material

In the perforation of sheet material by light energy, a continuous focused laser beam is reflected from different locations along the beam axis to provide separate pulsed beams and the beams are issued onto the sheet material with the same beam cross-sectional area. In one aspect, the lengths of res...

Full description

Saved in:
Bibliographic Details
Main Authors LILLY, JR.; A. CLIFTON, CLAFLIN; WARREN E, STULTZ; EDWARD B, MARTIN; PETER, BROOKS; ULYSSES A
Format Patent
LanguageEnglish
Published 27.03.1984
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
PERFORMING OPERATIONS
SMOKERS' REQUISITES
SOLDERING OR UNSOLDERING
TOBACCO
TRANSPORTING
WELDING
WORKING BY LASER BEAM
Online AccessGet full text

Cover

More Information
Summary:In the perforation of sheet material by light energy, a continuous focused laser beam is reflected from different locations along the beam axis to provide separate pulsed beams and the beams are issued onto the sheet material with the same beam cross-sectional area. In one aspect, the lengths of respective different light paths for conveyance of light from the point of focus of the laser to final image locations are made equal. In another aspect, different focusing elements may be included in light paths to provide for sameness of beam cross-sectional area at the final image locations. The light paths are preferably provided in part by light conducting apparatus having light-reflective elements mounted for movement, such that different perforation matrices may be readily attained.
Bibliography:Application Number: US19810286635