GB1405487A - Apparatus for treating workpieces with laser radiation - Google Patents

Apparatus for treating workpieces with laser radiation

Info

Publication number
GB1405487A
GB1405487A GB4449472A GB4449472A GB1405487A GB 1405487 A GB1405487 A GB 1405487A GB 4449472 A GB4449472 A GB 4449472A GB 4449472 A GB4449472 A GB 4449472A GB 1405487 A GB1405487 A GB 1405487A
Authority
GB
Grant status
Application
Patent type
Prior art keywords
focal points
prism
bi
laser radiation
radiation
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
GB4449472A
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.)
EMI Group Ltd
Original Assignee
EMI Group 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

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/067Dividing the beam into multiple beams, e.g. multifocusing
    • B23K26/0676Dividing the beam into multiple beams, e.g. multifocusing into dependently operating sub-beams, e.g. an array of spots with fixed spatial relationship or for performing simultaneously identical operations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/067Dividing the beam into multiple beams, e.g. multifocusing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28DWORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/22Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by cutting, e.g. incising
    • B28D1/221Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by cutting, e.g. incising by thermic methods

Abstract

1405487 Cutting and welding by fusion THORN ELECTRICAL INDUSTRIES Ltd 12 Sept 1973 [26 Sept 1972] 44494/72 Headings B3V and B3R [Also in Divisions B5 and G2] A workpiece is treated with laser radiation by focusing a beam of the radiation passing through each one of at least two mutually exclusive areas of the cross-section of the beam at a respective point 14, 15. In one embodiment, a parallel beam of laser radiation is passed through a converging lens 11 and a bi-prism 12 to produce two focal points 14, 15 on the workpiece. The position of the points 14, 15 may be varied by altering the distance between the lens 11 and bi-prism 12 whilst the amount of radiation received at each point 14, 15 can be varied by laterally moving the bi-prism 12. In other embodiments, three focal points are produced by replacing the bi-prism 12 by two spaced prisms (22, 23) (Fig. 2, not shown), or five focal points are produced by using four prisms (32-35) (Fig. 3, not shown) or nine focal points are produced by using four prisms (42-45) (Fig. 4, not shown) arranged in two pairs which are perpendicular to each other one below the other. One or more converging members 11 may be used to deviate the radiation away from the incident beam or to produce focal points which do not lie in the same plane. The workpiece may be metal or silica and may be bored, cut or welded by the laser radiation.
GB4449472A 1972-09-26 1972-09-26 Apparatus for treating workpieces with laser radiation Expired GB1405487A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4449472A GB1405487A (en) 1972-09-26 1972-09-26 Apparatus for treating workpieces with laser radiation

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB4449472A GB1405487A (en) 1972-09-26 1972-09-26 Apparatus for treating workpieces with laser radiation
CA 181251 CA985077A (en) 1972-09-26 1973-09-17 Methods and apparatus for treating workpieces with laser radiation
DE19732348025 DE2348025A1 (en) 1972-09-26 1973-09-24 A method and apparatus for treating workpieces by means of laser radiation
NL7313289A NL7313289A (en) 1972-09-26 1973-09-26

Publications (1)

Publication Number Publication Date
GB1405487A true true GB1405487A (en) 1975-09-10

Family

ID=10433580

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4449472A Expired GB1405487A (en) 1972-09-26 1972-09-26 Apparatus for treating workpieces with laser radiation

Country Status (4)

Country Link
CA (1) CA985077A (en)
DE (1) DE2348025A1 (en)
GB (1) GB1405487A (en)
NL (1) NL7313289A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4083629A (en) * 1976-11-29 1978-04-11 Gte Laboratories Incorporated Beam splitting system for a welding laser
US4401876A (en) 1980-05-20 1983-08-30 Martin Cooper Working gemstones
GB2151978A (en) * 1983-12-29 1985-07-31 Toshiba Ceramics Co Method of and apparatus for machining a ceramic member
GB2162122A (en) * 1984-05-18 1986-01-29 Maschf Augsburg Nuernberg Ag A method of enhancing an ice-breaking operation
US4824691A (en) * 1986-03-27 1989-04-25 The Wiggins Teape Group Limited Imaged microcapsule-coated paper
US4874919A (en) * 1987-01-14 1989-10-17 The Wiggins Teape Group Limited Laser apparatus for repetitively marking a moving sheet
US4961080A (en) * 1988-02-16 1990-10-02 The Wiggins Teape Group Limited Laser marker with mask scanning
US5352495A (en) * 1989-02-16 1994-10-04 The Wiggins Teape Group Limited Treatment of a surface by laser energy
US5932119A (en) 1996-01-05 1999-08-03 Lazare Kaplan International, Inc. Laser marking system
WO2004020141A1 (en) * 2002-08-28 2004-03-11 Jenoptik Automatisierungstechnik Gmbh Beam formation unit comprising two axicon lenses, and device comprising one such beam formation unit for introducing radiation energy into a workpiece consisting of a weakly-absorbent material

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2437008B1 (en) * 1978-09-20 1985-06-28 Philip Morris Inc An apparatus for producing pulses of light beams
EP0062517A1 (en) * 1981-04-03 1982-10-13 The Welding Institute Heat treatment of workpiece by laser
DE3620744C2 (en) * 1986-06-20 1989-08-24 G. Rodenstock Instrumente Gmbh, 8000 Muenchen, De
US4714815A (en) * 1986-11-04 1987-12-22 United Technologies Corporation Dual laser beam brazing of fine wires
DE10141731A1 (en) * 2001-08-25 2003-03-13 Bosch Gmbh Robert Device for making holes in workpieces with at least one laser beam has arrangement for dividing laser beam into several sub-laser beams, each for making hole in workpiece

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4083629A (en) * 1976-11-29 1978-04-11 Gte Laboratories Incorporated Beam splitting system for a welding laser
US4401876A (en) 1980-05-20 1983-08-30 Martin Cooper Working gemstones
GB2151978A (en) * 1983-12-29 1985-07-31 Toshiba Ceramics Co Method of and apparatus for machining a ceramic member
GB2162122A (en) * 1984-05-18 1986-01-29 Maschf Augsburg Nuernberg Ag A method of enhancing an ice-breaking operation
US4824691A (en) * 1986-03-27 1989-04-25 The Wiggins Teape Group Limited Imaged microcapsule-coated paper
US4874919A (en) * 1987-01-14 1989-10-17 The Wiggins Teape Group Limited Laser apparatus for repetitively marking a moving sheet
US4961080A (en) * 1988-02-16 1990-10-02 The Wiggins Teape Group Limited Laser marker with mask scanning
US5352495A (en) * 1989-02-16 1994-10-04 The Wiggins Teape Group Limited Treatment of a surface by laser energy
US5932119A (en) 1996-01-05 1999-08-03 Lazare Kaplan International, Inc. Laser marking system
US6211484B1 (en) 1996-01-05 2001-04-03 Lazare Kaplan International, Inc. Laser making system and certificate for a gemstone
US6476351B1 (en) 1996-01-05 2002-11-05 Lazare Kaplan International, Inc. Laser marking system
EP2216126A2 (en) 1996-01-05 2010-08-11 Lazare Kaplan International Inc. Laser marking system for gemstones and method of authenticating marking
WO2004020141A1 (en) * 2002-08-28 2004-03-11 Jenoptik Automatisierungstechnik Gmbh Beam formation unit comprising two axicon lenses, and device comprising one such beam formation unit for introducing radiation energy into a workpiece consisting of a weakly-absorbent material
US7102118B2 (en) 2002-08-28 2006-09-05 Jenoptik Automatisierungstechnik Gmbh Beam formation unit comprising two axicon lenses, and device comprising one such beam formation unit for introducing radiation energy into a workpiece consisting of a weakly-absorbent material

Also Published As

Publication number Publication date Type
NL7313289A (en) 1974-03-28 application
CA985077A (en) 1976-03-09 grant
DE2348025A1 (en) 1974-04-11 application
CA985077A1 (en) grant

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Legal Events

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