JPS5720487A - Laser beam irradiation apparatus - Google Patents

Laser beam irradiation apparatus

Info

Publication number
JPS5720487A
JPS5720487A JP9526680A JP9526680A JPS5720487A JP S5720487 A JPS5720487 A JP S5720487A JP 9526680 A JP9526680 A JP 9526680A JP 9526680 A JP9526680 A JP 9526680A JP S5720487 A JPS5720487 A JP S5720487A
Authority
JP
Japan
Prior art keywords
laser beam
laser
amplified
emitted
condensed
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.)
Granted
Application number
JP9526680A
Other languages
Japanese (ja)
Other versions
JPS6037625B2 (en
Inventor
Katsuumi Tanaka
Haruo Amano
Noriyoshi Onodera
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.)
Hino Motors Ltd
Original Assignee
Hino Motors 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 Hino Motors Ltd filed Critical Hino Motors Ltd
Priority to JP55095266A priority Critical patent/JPS6037625B2/en
Publication of JPS5720487A publication Critical patent/JPS5720487A/en
Publication of JPS6037625B2 publication Critical patent/JPS6037625B2/en
Expired 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
    • B23K26/70—Auxiliary operations or equipment
    • B23K26/702—Auxiliary equipment
    • B23K26/706—Protective screens
    • 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
    • B23K26/70—Auxiliary operations or equipment
    • B23K26/702—Auxiliary equipment

Abstract

PURPOSE:To prevent misirradiation to human bodies by automatically stopping or damping a laser with a photoelectric converter provided at a focusing point according to external infrared rays condensed with a lens to the point as coming at a solid angle including the one at which the laser beam should be emitted. CONSTITUTION:As soon as a laser beam 3 is emitted from a laser 4, it is condensed by a lens system 6 in the range of a solid angle 5 including the one at which the laser beam 3 should be emitted. The beam thus condensed hits a photoelectric converter 8 provided at a focusing point by way of an infrared ray filter 7. The output of the converter is amplified 10 and switches 11 a power source 12 to control the driving 13 of the laser. As soon as any infrared ray comes from an emitting body within the solid angle, it is detected 8 and amplified 10 to open a switch device 11. When the infrared rays passing through the filter 7 is set at a wavelengthe equivalent to the temperature of a human body and amplified 10 sufficiently, the entry of a part of the human body within the solid anble 5 opens the switch device 11. Otherwise, the power of the laser beam can be damped to a danger-free extent. Thus, the safety can be secured.
JP55095266A 1980-07-12 1980-07-12 Laser beam irradiation device Expired JPS6037625B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55095266A JPS6037625B2 (en) 1980-07-12 1980-07-12 Laser beam irradiation device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55095266A JPS6037625B2 (en) 1980-07-12 1980-07-12 Laser beam irradiation device

Publications (2)

Publication Number Publication Date
JPS5720487A true JPS5720487A (en) 1982-02-02
JPS6037625B2 JPS6037625B2 (en) 1985-08-27

Family

ID=14132956

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55095266A Expired JPS6037625B2 (en) 1980-07-12 1980-07-12 Laser beam irradiation device

Country Status (1)

Country Link
JP (1) JPS6037625B2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04169887A (en) * 1990-11-01 1992-06-17 Matsushita Electric Ind Co Ltd Laser visual sensor device
EP1759805A1 (en) * 2005-08-30 2007-03-07 United Technologies Corporation Laser control system
US7767318B2 (en) 2006-11-21 2010-08-03 United Technologies Corporation Laser fillet welding
DE102013114773A1 (en) * 2013-12-23 2015-06-25 Deutsches Zentrum für Luft- und Raumfahrt e.V. Device for transmitting energy by means of laser radiation
JP2016140908A (en) * 2015-02-05 2016-08-08 株式会社Ihi Laser cutting apparatus and laser cutting method
JP2017164773A (en) * 2016-03-15 2017-09-21 株式会社牧野フライス製作所 Safety device for laser beam machine
JP2017226014A (en) * 2017-09-28 2017-12-28 株式会社牧野フライス製作所 Safety device for laser beam machine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04169887A (en) * 1990-11-01 1992-06-17 Matsushita Electric Ind Co Ltd Laser visual sensor device
EP1759805A1 (en) * 2005-08-30 2007-03-07 United Technologies Corporation Laser control system
US7767318B2 (en) 2006-11-21 2010-08-03 United Technologies Corporation Laser fillet welding
DE102013114773A1 (en) * 2013-12-23 2015-06-25 Deutsches Zentrum für Luft- und Raumfahrt e.V. Device for transmitting energy by means of laser radiation
JP2016140908A (en) * 2015-02-05 2016-08-08 株式会社Ihi Laser cutting apparatus and laser cutting method
JP2017164773A (en) * 2016-03-15 2017-09-21 株式会社牧野フライス製作所 Safety device for laser beam machine
JP2017226014A (en) * 2017-09-28 2017-12-28 株式会社牧野フライス製作所 Safety device for laser beam machine

Also Published As

Publication number Publication date
JPS6037625B2 (en) 1985-08-27

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