WO1999040472A3 - Process and device for deflecting a laser beam - Google Patents

Process and device for deflecting a laser beam Download PDF

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Publication number
WO1999040472A3
WO1999040472A3 PCT/DE1999/000235 DE9900235W WO9940472A3 WO 1999040472 A3 WO1999040472 A3 WO 1999040472A3 DE 9900235 W DE9900235 W DE 9900235W WO 9940472 A3 WO9940472 A3 WO 9940472A3
Authority
WO
WIPO (PCT)
Prior art keywords
laser beam
rotary unit
rotated
deflecting
path
Prior art date
Application number
PCT/DE1999/000235
Other languages
German (de)
French (fr)
Other versions
WO1999040472A2 (en
Inventor
Joachim Knappmeyer
Original Assignee
Lpkf Laser & Electronics Ag
Joachim Knappmeyer
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lpkf Laser & Electronics Ag, Joachim Knappmeyer filed Critical Lpkf Laser & Electronics Ag
Publication of WO1999040472A2 publication Critical patent/WO1999040472A2/en
Publication of WO1999040472A3 publication Critical patent/WO1999040472A3/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/0875—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more refracting elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • B23K26/082—Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head

Abstract

A process is disclosed for deflecting a laser beam around the circumference of a polar vector figure, in particular for trepanning purposes. The process is characterised in that the centre of laser beam focusing optics are moved along a path of displacement relative to the incident laser beam, the path of displacement being obtained by adding two vectors that are rotated. This process enables small structures to be accurately and quickly cut or machined, for example in thin metal flakes. Also disclosed is a device for carrying out the process, characterised in that a second rotary unit (3) is eccentrically secured on a first rotary unit (2), focusing optics (5) are in turn eccentrically secured on the second rotary unit (3), the first rotary unit (2) being rotated by a first drive (6) and the second unit (3) being rotated by a second drive (7).
PCT/DE1999/000235 1998-02-04 1999-01-29 Process and device for deflecting a laser beam WO1999040472A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19804305.8 1998-02-04
DE19804305A DE19804305C1 (en) 1998-02-04 1998-02-04 Method and apparatus for deflecting a laser beam, in particular, for trepanning operations

Publications (2)

Publication Number Publication Date
WO1999040472A2 WO1999040472A2 (en) 1999-08-12
WO1999040472A3 true WO1999040472A3 (en) 1999-09-23

Family

ID=7856580

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1999/000235 WO1999040472A2 (en) 1998-02-04 1999-01-29 Process and device for deflecting a laser beam

Country Status (2)

Country Link
DE (1) DE19804305C1 (en)
WO (1) WO1999040472A2 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3865564A (en) * 1973-07-09 1975-02-11 Bell Telephone Labor Inc Fabrication of glass fibers from preform by lasers
US4387952A (en) * 1981-03-27 1983-06-14 Spectra-Physics, Inc. Single axis beam scanner
GB2120804A (en) * 1982-05-27 1983-12-07 Fiat Auto Spa Deflection device for laser beam in thermal surface treatments of splined pieces
GB2144873A (en) * 1983-08-12 1985-03-13 Fairey Eng Apparatus for scanning a laser beam
EP0531139A1 (en) * 1991-09-05 1993-03-10 Toyota Jidosha Kabushiki Kaisha Method of laser-welding metal sheets having different thicknesses

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2200223B (en) * 1986-01-31 1989-06-07 Ferranti Plc Apparatus for controlling the direction of a beam of optical radiation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3865564A (en) * 1973-07-09 1975-02-11 Bell Telephone Labor Inc Fabrication of glass fibers from preform by lasers
US4387952A (en) * 1981-03-27 1983-06-14 Spectra-Physics, Inc. Single axis beam scanner
GB2120804A (en) * 1982-05-27 1983-12-07 Fiat Auto Spa Deflection device for laser beam in thermal surface treatments of splined pieces
GB2144873A (en) * 1983-08-12 1985-03-13 Fairey Eng Apparatus for scanning a laser beam
EP0531139A1 (en) * 1991-09-05 1993-03-10 Toyota Jidosha Kabushiki Kaisha Method of laser-welding metal sheets having different thicknesses

Also Published As

Publication number Publication date
DE19804305C1 (en) 1999-07-29
WO1999040472A2 (en) 1999-08-12

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