JPS5769789A - Monitoring device for optical axis of laser beam - Google Patents

Monitoring device for optical axis of laser beam

Info

Publication number
JPS5769789A
JPS5769789A JP55144341A JP14434180A JPS5769789A JP S5769789 A JPS5769789 A JP S5769789A JP 55144341 A JP55144341 A JP 55144341A JP 14434180 A JP14434180 A JP 14434180A JP S5769789 A JPS5769789 A JP S5769789A
Authority
JP
Japan
Prior art keywords
laser beam
reflector
invisible laser
ring type
optical 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
JP55144341A
Other languages
Japanese (ja)
Inventor
Sei Takemori
Hiroyuki Sugawara
Koji Kuwabara
Toshiji Shirokura
Yukio Kawakubo
Hiroharu Sasaki
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.)
Hitachi Ltd
Original Assignee
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
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP55144341A priority Critical patent/JPS5769789A/en
Publication of JPS5769789A publication Critical patent/JPS5769789A/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
    • 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
    • B23K26/035—Aligning the laser beam

Landscapes

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

Abstract

PURPOSE:To make the position of a visible ray to coincide with an invisible laser beam and to enhance precision of irradiating position of the invisible laser beam by a method wherein the ring type beam consisting of the visible ray is converted into a converging or diverging ring type beam by a middle reflector. CONSTITUTION:When the laser beam sent from an invisible laser beam source 1 of CO2 laser, etc., is made to penetrate a hollow part 10a, and is reflected by the reflector 4, and to be converged to irradiate a material to be processed, the visible laser beam source 7 is used for monitoring of optical axis, the beam 8 thereof is converted into a ring type beam by a conic splitter 9, it is diverged by the middle reflector 10 consisting of a convex mirror, and it is made to irradiate the position of the same converging point with the invisible laser beam through the reflector 4, a lens 5. Accordingly because discrepancy of position of converging point to be caused by dependency of the focus position of the a NaCl lens 5 to wave length can be compensated, the irradiating position of the invisible laser beam can be decided with favorable precision.
JP55144341A 1980-10-17 1980-10-17 Monitoring device for optical axis of laser beam Pending JPS5769789A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55144341A JPS5769789A (en) 1980-10-17 1980-10-17 Monitoring device for optical axis of laser beam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55144341A JPS5769789A (en) 1980-10-17 1980-10-17 Monitoring device for optical axis of laser beam

Publications (1)

Publication Number Publication Date
JPS5769789A true JPS5769789A (en) 1982-04-28

Family

ID=15359847

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55144341A Pending JPS5769789A (en) 1980-10-17 1980-10-17 Monitoring device for optical axis of laser beam

Country Status (1)

Country Link
JP (1) JPS5769789A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63180392A (en) * 1987-01-22 1988-07-25 Toyota Motor Corp Focal length adjusting device for work lens

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63180392A (en) * 1987-01-22 1988-07-25 Toyota Motor Corp Focal length adjusting device for work lens

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