GB1334772A - Laser device having means for protecting the human body against harmful rays - Google Patents

Laser device having means for protecting the human body against harmful rays

Info

Publication number
GB1334772A
GB1334772A GB1117271*[A GB1117271A GB1334772A GB 1334772 A GB1334772 A GB 1334772A GB 1117271 A GB1117271 A GB 1117271A GB 1334772 A GB1334772 A GB 1334772A
Authority
GB
United Kingdom
Prior art keywords
hood
laser
workpiece
cutting
laser device
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.)
Expired
Application number
GB1117271*[A
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.)
Messer Griesheim GmbH
Original Assignee
Messer Griesheim GmbH
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
Priority claimed from DE19702019947 external-priority patent/DE2019947C/en
Application filed by Messer Griesheim GmbH filed Critical Messer Griesheim GmbH
Publication of GB1334772A publication Critical patent/GB1334772A/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
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/03—Observing, e.g. monitoring, the workpiece
    • B23K26/032—Observing, e.g. monitoring, the workpiece using optical means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/04—Eye-masks ; Devices to be worn on the face, not intended for looking through; Eye-pads for sunbathing
    • A61F9/06—Masks, shields or hoods for welders
    • 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
    • B23K26/12—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure
    • 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
    • B23K26/12—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure
    • B23K26/123—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure in an atmosphere of particular gases
    • 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
    • B23K26/12—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure
    • B23K26/127—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure in an enclosure
    • 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
    • B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
    • B23K26/142—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor for the removal of by-products
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F3/00—Shielding characterised by its physical form, e.g. granules, or shape of the material

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biomedical Technology (AREA)
  • Ophthalmology & Optometry (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Laser Beam Processing (AREA)

Abstract

1334772 Welding and cutting by fusion; soldering MESSER GRIESHEIM GmbH 23 April 1971 [24 April 1970] 11172/71 Headings B3R and B3V [Also in Division H1] A laser device is provided with a shield or hood surrounding the outlet apertures and formed of a material capable of absorbing and/or reflecting the laser radiation, at least part of the shield or hood being transparent to visible light to enable operations carried out by the laser to be observed. In Fig. 1, laser device 31 consists of beam 33 produced by laser 32, diverted by optical system 34, and directed by processing optical system 35 in tube 37 on to workpiece 36. Hood 30 is mounted over the workpiece 36 by screw 45 and consists of a number of magnifying segments 40, 40<SP>1</SP> internally coated with silicone 41. Reflected rays 43 are absorbed and/or reflected by hood 30 and prevented from entering the eyes 44 of a viewer. A protective gas atmosphere may be supplied via inlet 38 of tube 37 to prevent the formation of oxide during, e.g., welding, soldering or cutting of metals. In Fig. 2 the hood consists of a disc 51 with rim 53 directed towards workpiece 52; lower side 58 of 51 may be grooved. Hood 50 and component 54, which is a cutting nozzle for a CO 2 laser, are fastened on outlet 55 of the laser. In Fig. 3 the hood is a cylinder. The hood may be of quartz glass or, for a CO 2 laser, acrylic glass, and is preferably adjustable in position and distance from the outlet aperture. An exchangeable protective disc may be mounted between the radiation producer and the lens.
GB1117271*[A 1970-04-24 1971-04-23 Laser device having means for protecting the human body against harmful rays Expired GB1334772A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702019947 DE2019947C (en) 1970-04-24 Device for protecting the human body against harmful rays

Publications (1)

Publication Number Publication Date
GB1334772A true GB1334772A (en) 1973-10-24

Family

ID=5769136

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1117271*[A Expired GB1334772A (en) 1970-04-24 1971-04-23 Laser device having means for protecting the human body against harmful rays

Country Status (2)

Country Link
FR (1) FR2089893A5 (en)
GB (1) GB1334772A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005049262A1 (en) * 2003-11-13 2005-06-02 Honeywell International Inc. Hand-held laser welding wand with reflection shield
GB2519524A (en) * 2013-10-22 2015-04-29 Advanced laser technology ltd Reflective dome
CN107598393A (en) * 2017-10-11 2018-01-19 深圳市贝优通新能源技术开发有限公司 A kind of safe and reliable laser cutting machine based on Internet of Things
CN112440003A (en) * 2020-11-16 2021-03-05 淮安特创科技有限公司 Antireflection laser processing device and laser processing equipment
CN112644028A (en) * 2020-12-01 2021-04-13 大族激光科技产业集团股份有限公司 Plastic pipeline and laser welding method thereof
CN117840461A (en) * 2024-03-07 2024-04-09 苏州融速智造科技有限公司 Laser additive printing head capable of reflecting laser and printing method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005049262A1 (en) * 2003-11-13 2005-06-02 Honeywell International Inc. Hand-held laser welding wand with reflection shield
GB2519524A (en) * 2013-10-22 2015-04-29 Advanced laser technology ltd Reflective dome
CN107598393A (en) * 2017-10-11 2018-01-19 深圳市贝优通新能源技术开发有限公司 A kind of safe and reliable laser cutting machine based on Internet of Things
CN112440003A (en) * 2020-11-16 2021-03-05 淮安特创科技有限公司 Antireflection laser processing device and laser processing equipment
CN112644028A (en) * 2020-12-01 2021-04-13 大族激光科技产业集团股份有限公司 Plastic pipeline and laser welding method thereof
CN117840461A (en) * 2024-03-07 2024-04-09 苏州融速智造科技有限公司 Laser additive printing head capable of reflecting laser and printing method
CN117840461B (en) * 2024-03-07 2024-06-04 苏州融速智造科技有限公司 Laser additive printing head capable of reflecting laser and printing method

Also Published As

Publication number Publication date
DE2019947A1 (en) 1971-11-04
FR2089893A5 (en) 1972-01-07
DE2019947B2 (en) 1972-09-28

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee