WO2008003052A3 - Gemstone laser marking system and method - Google Patents

Gemstone laser marking system and method Download PDF

Info

Publication number
WO2008003052A3
WO2008003052A3 PCT/US2007/072382 US2007072382W WO2008003052A3 WO 2008003052 A3 WO2008003052 A3 WO 2008003052A3 US 2007072382 W US2007072382 W US 2007072382W WO 2008003052 A3 WO2008003052 A3 WO 2008003052A3
Authority
WO
WIPO (PCT)
Prior art keywords
gemstone
laser
marking system
ultra
mark
Prior art date
Application number
PCT/US2007/072382
Other languages
French (fr)
Other versions
WO2008003052A2 (en
Inventor
John Bishop
Michael Wheeler
Luisa Zini
Original Assignee
John Bishop
Michael Wheeler
Luisa Zini
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 John Bishop, Michael Wheeler, Luisa Zini filed Critical John Bishop
Publication of WO2008003052A2 publication Critical patent/WO2008003052A2/en
Publication of WO2008003052A3 publication Critical patent/WO2008003052A3/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/0036—Laser treatment
    • 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
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/062—Shaping the laser beam, e.g. by masks or multi-focusing by direct control of the laser beam
    • B23K26/0622—Shaping the laser beam, e.g. by masks or multi-focusing by direct control of the laser beam by shaping pulses
    • B23K26/0624—Shaping the laser beam, e.g. by masks or multi-focusing by direct control of the laser beam by shaping pulses using ultrashort pulses, i.e. pulses of 1ns or less
    • 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
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • B23K26/083—Devices involving movement of the workpiece in at least one axial direction
    • B23K26/0853—Devices involving movement of the workpiece in at least in two axial directions, e.g. in a plane
    • 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
    • B23K26/36—Removing material
    • B23K26/40—Removing material taking account of the properties of the material involved
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/262—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used recording or marking of inorganic surfaces or materials, e.g. glass, metal, or ceramics
    • 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
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/50—Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/24—Ablative recording, e.g. by burning marks; Spark recording

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Laser Beam Processing (AREA)

Abstract

A gemstone laser marking system (1) and method (100) in which a rough or polished diamond (24, 224) or other gemstone is marked with one or more laser pulses (12) which have an ultra-short duration of less than 10 picoseconds. The laser pulses are generated by a pulsed laser (2) which may be a mode lock laser (2). The ultra-short laser pulses (12 are focused on the gemstone surface or bulk using a focusing device (16) to mark the gemstone (24, 224). The relative displacement between the gemstone mount (17) and the path of the laser pulse(s) can be varied in order to mark a pattern or feature (30), which may be for example a data matrix, a bar code, a glyphic text, a photograph, or other digital data and analogue data, on the surface of the polished or rough gemstone.
PCT/US2007/072382 2006-06-29 2007-06-28 Gemstone laser marking system and method WO2008003052A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US80625706P 2006-06-29 2006-06-29
US60/806,257 2006-06-29

Publications (2)

Publication Number Publication Date
WO2008003052A2 WO2008003052A2 (en) 2008-01-03
WO2008003052A3 true WO2008003052A3 (en) 2008-02-28

Family

ID=38846554

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/072382 WO2008003052A2 (en) 2006-06-29 2007-06-28 Gemstone laser marking system and method

Country Status (1)

Country Link
WO (1) WO2008003052A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012007956A1 (en) * 2010-07-14 2012-01-19 Arvindbhai Lavjibhai Patel Laser fire protection system (lfps)
FR3061052B1 (en) 2016-12-28 2019-05-31 Commissariat A L'energie Atomique Et Aux Energies Alternatives METHOD FOR LASER MACHINING A DIAMOND FOR OBTAINING A SMOOTH AND TRANSPARENT SURFACE
US11986905B2 (en) 2018-08-01 2024-05-21 Kyushu University, National University Corporation Diamond smoothing method
FR3085854B1 (en) * 2018-09-13 2021-07-30 Irisiome PULSE LASER SYSTEM INTENDED FOR DERMATOLOGICAL TREATMENTS
CN110900197B (en) * 2019-11-27 2021-05-25 安徽天兵电子科技股份有限公司 Laser marking device for circuit board

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6187213B1 (en) * 1995-07-17 2001-02-13 Gersan Establishment Marking diamond
US6716210B2 (en) * 1992-12-03 2004-04-06 Lasersight Technologies, Inc. Refractive surgical laser apparatus and method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6716210B2 (en) * 1992-12-03 2004-04-06 Lasersight Technologies, Inc. Refractive surgical laser apparatus and method
US6187213B1 (en) * 1995-07-17 2001-02-13 Gersan Establishment Marking diamond

Also Published As

Publication number Publication date
WO2008003052A2 (en) 2008-01-03

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