JPS6453794A - Optical lens for large output laser - Google Patents

Optical lens for large output laser

Info

Publication number
JPS6453794A
JPS6453794A JP62207742A JP20774287A JPS6453794A JP S6453794 A JPS6453794 A JP S6453794A JP 62207742 A JP62207742 A JP 62207742A JP 20774287 A JP20774287 A JP 20774287A JP S6453794 A JPS6453794 A JP S6453794A
Authority
JP
Japan
Prior art keywords
laser light
lens
diameter
hole
center
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
JP62207742A
Other languages
Japanese (ja)
Inventor
Keiji Ehata
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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
Application filed by Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP62207742A priority Critical patent/JPS6453794A/en
Publication of JPS6453794A publication Critical patent/JPS6453794A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/073—Shaping the laser spot

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Laser Beam Processing (AREA)

Abstract

PURPOSE:To reduce the energy load of a laser light and to enable the use for long term by forming at the center part a through hole smaller than the diameter of a laser light incident on the optical lens for laser. CONSTITUTION:The through hole 6 formed at the center of a lens 5 is of the diameter small enough compared with the diameter of a laser light 7. Therefore, the light at the center having higher energy is not directly absorbed by the lens 5. Only the lower energy laser light of the environmental part is condensed by passing through the lens 5. Also, due to the laser light of the center part passing through the hole 6 linearly propagating as it is, it is collected to the converging part of the laser light. Consequently, the laser light can be converged in the necessary diameter by the lens 5 by reducing the size of the through hole 6 move than the diameter of the laser light.
JP62207742A 1987-08-20 1987-08-20 Optical lens for large output laser Pending JPS6453794A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62207742A JPS6453794A (en) 1987-08-20 1987-08-20 Optical lens for large output laser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62207742A JPS6453794A (en) 1987-08-20 1987-08-20 Optical lens for large output laser

Publications (1)

Publication Number Publication Date
JPS6453794A true JPS6453794A (en) 1989-03-01

Family

ID=16544782

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62207742A Pending JPS6453794A (en) 1987-08-20 1987-08-20 Optical lens for large output laser

Country Status (1)

Country Link
JP (1) JPS6453794A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5651904A (en) * 1991-11-19 1997-07-29 Advanced Technik Gmbh Method for removing material from metal workpieces moved relative to the removal tool
US5728993A (en) * 1995-08-05 1998-03-17 The Boc Group Plc Laser cutting of materials with plural beams
US6489588B1 (en) 1999-11-24 2002-12-03 Applied Photonics, Inc. Method and apparatus for separating non-metallic materials

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5651904A (en) * 1991-11-19 1997-07-29 Advanced Technik Gmbh Method for removing material from metal workpieces moved relative to the removal tool
US5847358A (en) * 1991-11-19 1998-12-08 Advanced Technik Gmbh Method and apparatus for removing material from metal workpieces moved relative to a laser removal tool
US5728993A (en) * 1995-08-05 1998-03-17 The Boc Group Plc Laser cutting of materials with plural beams
US6489588B1 (en) 1999-11-24 2002-12-03 Applied Photonics, Inc. Method and apparatus for separating non-metallic materials
US6660963B2 (en) 1999-11-24 2003-12-09 Applied Photonics, Inc. Method and apparatus for separating non-metallic materials

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