JPH01180796A - Laser beam radiation method - Google Patents

Laser beam radiation method

Info

Publication number
JPH01180796A
JPH01180796A JP62336082A JP33608287A JPH01180796A JP H01180796 A JPH01180796 A JP H01180796A JP 62336082 A JP62336082 A JP 62336082A JP 33608287 A JP33608287 A JP 33608287A JP H01180796 A JPH01180796 A JP H01180796A
Authority
JP
Japan
Prior art keywords
mirror
circular columnar
direction
laser beam
segment
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
JP62336082A
Other versions
JPH0455785B2 (en
Inventor
Osami Ichiko
Katsuhiro Minamida
Shinsuke Nakanishi
Original Assignee
Nippon Steel Corp
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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP62336082A priority Critical patent/JPH0455785B2/ja
Publication of JPH01180796A publication Critical patent/JPH01180796A/en
Publication of JPH0455785B2 publication Critical patent/JPH0455785B2/ja
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

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

Abstract

PURPOSE:To obtain the beam having an uniform energy distribution linearly in the linear direction by stopping the laser beam emitted from a laser oscillator in one direction by a concave circular columnar mirror and superposing the laser beam at the radiation position by the integrating mirror having a convex circular columnar mirror at the segment. CONSTITUTION:The laser beam composed of the integrating mirror 2 having concave circular columnar mirror 1 and convex circular columnar mirror at the segment and emitted from an oscillator is stopped in one direction by the concave circular columnar mirror 1 and then spread in the direction displaced 90 deg. from said direction by the integrating mirror 2 having the convex circular columnar mirror at the segment. The beam shape at the position where it is stopped min. By the circular columnar mirror 1 becomes linear. The energy distribution of the image reflected from each segment 2-2-2-6 on which the beam is made incident is superposed by condensing at one place even if it is inhomogeneous and a homogeneous energy distribution is thus obtd.
JP62336082A 1987-12-28 1987-12-28 Expired - Lifetime JPH0455785B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62336082A JPH0455785B2 (en) 1987-12-28 1987-12-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62336082A JPH0455785B2 (en) 1987-12-28 1987-12-28

Publications (2)

Publication Number Publication Date
JPH01180796A true JPH01180796A (en) 1989-07-18
JPH0455785B2 JPH0455785B2 (en) 1992-09-04

Family

ID=18295509

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62336082A Expired - Lifetime JPH0455785B2 (en) 1987-12-28 1987-12-28

Country Status (1)

Country Link
JP (1) JPH0455785B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7148447B2 (en) * 2001-03-29 2006-12-12 Gsi Group Corporation Method and apparatus for laser marking by ablation
US7270431B2 (en) * 2004-07-16 2007-09-18 Carl Zeiss Jena Gmbh Illumination device and its use

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5794482A (en) * 1980-12-05 1982-06-11 Hitachi Ltd Pattern forming device by laser
JPS6284889A (en) * 1985-10-11 1987-04-18 Nippon Steel Corp Method and device for laser welding

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5794482A (en) * 1980-12-05 1982-06-11 Hitachi Ltd Pattern forming device by laser
JPS6284889A (en) * 1985-10-11 1987-04-18 Nippon Steel Corp Method and device for laser welding

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7148447B2 (en) * 2001-03-29 2006-12-12 Gsi Group Corporation Method and apparatus for laser marking by ablation
US7270431B2 (en) * 2004-07-16 2007-09-18 Carl Zeiss Jena Gmbh Illumination device and its use

Also Published As

Publication number Publication date
JPH0455785B2 (en) 1992-09-04

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