JPS5662689A - Laser processing device - Google Patents

Laser processing device

Info

Publication number
JPS5662689A
JPS5662689A JP13767579A JP13767579A JPS5662689A JP S5662689 A JPS5662689 A JP S5662689A JP 13767579 A JP13767579 A JP 13767579A JP 13767579 A JP13767579 A JP 13767579A JP S5662689 A JPS5662689 A JP S5662689A
Authority
JP
Japan
Prior art keywords
reflective mirror
laser
transmitter
processing device
irradiated
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
JP13767579A
Other languages
Japanese (ja)
Inventor
Sei Takemori
Hiroyuki Sugawara
Koji Kuwabara
Toshiji Shirokura
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 JP13767579A priority Critical patent/JPS5662689A/en
Publication of JPS5662689A publication Critical patent/JPS5662689A/en
Pending legal-status Critical Current

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  • Laser Beam Processing (AREA)

Abstract

PURPOSE:To generate a transverse mode pattern adapted to thermal processing without lowering the output, by stopping down the focus of the laser by the concave reflective mirror between the laser transmitter and the reflective mirror and by irradiating the laser to the reflective mirror by the convex reflective mirror, in the laser processing device using the reflective mirror. CONSTITUTION:In the device where the laser beam from transmitter 1 is irradiated to material 11 to be processed through reflective mirror 9 and laser head 10, concave reflective mirror 15 and convex reflective mirror 16 are provided between transmitter 1 and reflective mirror 9, and laser beam 8 is made into parallel beam 17 where the beam diameter D is stopped down to (d) (D>d), and this parallel beam 17 is guided to laser head 10 through reflective mirror 9, which is installed in such sufficient distance that Fraunhofer's diffraction may be caused, and is irradiated to material 11 to be processed. Thus, a transverse mode pattern adapted to thermal processing can be generated without lowering the laser output by generating the long visual field pattern of the laser beam.
JP13767579A 1979-10-26 1979-10-26 Laser processing device Pending JPS5662689A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13767579A JPS5662689A (en) 1979-10-26 1979-10-26 Laser processing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13767579A JPS5662689A (en) 1979-10-26 1979-10-26 Laser processing device

Publications (1)

Publication Number Publication Date
JPS5662689A true JPS5662689A (en) 1981-05-28

Family

ID=15204183

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13767579A Pending JPS5662689A (en) 1979-10-26 1979-10-26 Laser processing device

Country Status (1)

Country Link
JP (1) JPS5662689A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63249813A (en) * 1987-03-21 1988-10-17 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 Beam guide optical system for laser beam

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63249813A (en) * 1987-03-21 1988-10-17 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 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 Beam guiding optical device for laser beam

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