JPS58154484A - Method for converting laser beam - Google Patents

Method for converting laser beam

Info

Publication number
JPS58154484A
JPS58154484A JP18239381A JP18239381A JPS58154484A JP S58154484 A JPS58154484 A JP S58154484A JP 18239381 A JP18239381 A JP 18239381A JP 18239381 A JP18239381 A JP 18239381A JP S58154484 A JPS58154484 A JP S58154484A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
beam
laser beam
mirror
toric
central axis
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP18239381A
Inventor
Masaru Fujita
Masatoshi Inagaki
Ryutaro Jinbo
Shigeru Takahashi
Tomio Unno
Original Assignee
Hitachi Chem Co Ltd
Hitachi Ltd
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

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/073Shaping the laser spot
    • B23K26/0734Shaping the laser spot into an annular shape
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/064Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
    • B23K26/0643Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms comprising mirrors

Abstract

PURPOSE:To obtain a toric laser beam having optional diameters by reflecting a solid laser beam with a reflecting mirror having a circular conical convex face. CONSTITUTION:A solid laser beam 2 is converted to a toric laser beam 4 by the 1st reflecting mirror 8 of a circular conical shape assuming an angle alpha from the point where a plane 7 assuming 45 deg. to the optical axis intersects with the central axis of the beam 2. The selection of the beam 4 is accomplished without changing optical parts by moving the 2nd reflecting mirror 9 parallel in the direction of an arrow 10 in the central axis direction of the beam reflected from the mirror 8. To convert the same to a larger diameter, the mirror 9 is moved in the direction of the arrow 10 on the central axis of the beam reflected from the mirror 8 to condense the beam with a toric codenser lens 11 where the focuses of the lenses intersect, whereby the beam is irradiated to a circumferential joint part and joining such as brazing, soldering, welding or the like is accomplished.
JP18239381A 1981-11-16 1981-11-16 Method for converting laser beam Pending JPS58154484A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18239381A JPS58154484A (en) 1981-11-16 1981-11-16 Method for converting laser beam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18239381A JPS58154484A (en) 1981-11-16 1981-11-16 Method for converting laser beam

Publications (1)

Publication Number Publication Date
JPS58154484A true true JPS58154484A (en) 1983-09-13

Family

ID=16117529

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18239381A Pending JPS58154484A (en) 1981-11-16 1981-11-16 Method for converting laser beam

Country Status (1)

Country Link
JP (1) JPS58154484A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0173656A1 (en) * 1984-08-20 1986-03-05 FIAT AUTO S.p.A. Method and apparatus for welding thin metal sheets
JPS63249813A (en) * 1987-03-21 1988-10-17 Heraeus Gmbh W C Beam guide optical system for laser beam
US5690845A (en) * 1994-10-07 1997-11-25 Sumitomo Electric Industries, Ltd. Optical device for laser machining
EP1666188A2 (en) * 2004-12-01 2006-06-07 Fanuc Ltd Laser processing device with a light gathering member for irradiating the workpiece with a shape other than a one-point like profile, i.e. like a circle or a ring
US7265314B2 (en) * 2004-07-27 2007-09-04 Snecma Method and apparatus for laser welding using a CW laser beam combined with a pulsed laser beam
JP2009021476A (en) * 2007-07-13 2009-01-29 Disco Abrasive Syst Ltd Wafer dividing method
WO2013051424A1 (en) * 2011-10-07 2013-04-11 株式会社ブイ・テクノロジー Device for laser-machining glass substrate
CN103619527A (en) * 2011-05-11 2014-03-05 株式会社V技术 Lens and laser processing device equipped with same
CN105458493A (en) * 2014-09-30 2016-04-06 发那科株式会社 Laser processing apparatus
EP3088165A4 (en) * 2015-02-25 2017-02-01 Technology Research Association For Future Additive Manufacturing Optical processing head, optical processing device, and optical processing method

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0173656A1 (en) * 1984-08-20 1986-03-05 FIAT AUTO S.p.A. Method and apparatus for welding thin metal sheets
JPS63249813A (en) * 1987-03-21 1988-10-17 Heraeus Gmbh W C Beam guide optical system for laser beam
JPH087317B2 (en) * 1987-03-21 1996-01-29 ヘレウス・インスツルメンツ・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング Laser for light guide optical device
US5690845A (en) * 1994-10-07 1997-11-25 Sumitomo Electric Industries, Ltd. Optical device for laser machining
US7265314B2 (en) * 2004-07-27 2007-09-04 Snecma Method and apparatus for laser welding using a CW laser beam combined with a pulsed laser beam
EP1666188A2 (en) * 2004-12-01 2006-06-07 Fanuc Ltd Laser processing device with a light gathering member for irradiating the workpiece with a shape other than a one-point like profile, i.e. like a circle or a ring
EP1666188A3 (en) * 2004-12-01 2006-08-16 Fanuc Ltd Laser processing device with a light gathering member for irradiating the workpiece with a shape other than a one-point like profile, i.e. like a circle or a ring
JP2009021476A (en) * 2007-07-13 2009-01-29 Disco Abrasive Syst Ltd Wafer dividing method
CN103619527A (en) * 2011-05-11 2014-03-05 株式会社V技术 Lens and laser processing device equipped with same
US9310531B2 (en) 2011-05-11 2016-04-12 V-Technology Co., Ltd. Lens and laser processing apparatus equipped with the lens
WO2013051424A1 (en) * 2011-10-07 2013-04-11 株式会社ブイ・テクノロジー Device for laser-machining glass substrate
JP2013082580A (en) * 2011-10-07 2013-05-09 V Technology Co Ltd Laser processing apparatus for glass substrate
CN105458493A (en) * 2014-09-30 2016-04-06 发那科株式会社 Laser processing apparatus
US9656349B2 (en) 2014-09-30 2017-05-23 Fanuc Corporation Laser processing apparatus capable of increasing focused beam diameter
CN105458493B (en) * 2014-09-30 2017-10-27 发那科株式会社 The laser processing apparatus
EP3088165A4 (en) * 2015-02-25 2017-02-01 Technology Research Association For Future Additive Manufacturing Optical processing head, optical processing device, and optical processing method

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