Global patent index - EP 1000383 A1

EP 1000383 A1 2000-05-17 - SOLID STATE UV LASER

Title (en)

SOLID STATE UV LASER

Title (de)

UV-FESTKÖRPERLASER

Title (fr)

LASER UV SOLIDE

Publication

EP 1000383 A1 (EN)

Application

EP 98933356 A

Priority

  • AU 9800554 W
  • AU PO796897 A

Abstract (en)

[origin: WO9904317A1] The present invention provides a method and apparatus (10) for ablating material, the method including (a) directing a laser beam (14) through a frequency doubling compound (16); (b) then directing the beam through plurality of frequency converting compounds (20, 24); (c) then directing the beam through a beam separating system (30); and (d) directing the beam or a portion of the beam onto an area of the material to ablate the material, wherein the frequency converting compounds include a CLBO crystal. The apparatus includes a laser source (12) for providing a laser beam (14) of infra-red light, first frequency doubling means (20) for doubling the frequency of the infra-red beam, beam conversion means (24) for converting the infra-red beam into an ultra-violet beam (including a second frequency doubling means for redoubling the frequency to produce a twice doubled frequency beam and a fifth harmonic frequency mixing means for mixing the twice frequency doubled beam with the infra-red beam to produce an ultra-violet fifth harmonic of the infra-red beam to produce an ultra-violet fifth harmonic of the infra-red beam), a beam separating system (30) for separating the ultra-violet harmonic, and a laser delivery system (32) for delivering the ultra-violet harmonic to the material, wherein the apparatus is arranged to direct the infra-red beam (14) through the first frequency doubling means (20) and the beam conversion means (24), and to direct light from the beam conversion means (24) to the beam separating system (30) and then to laser delivery system (32) and the fifth harmonic frequency mixing means or the second frequency doubling means (24) includes a CLBO crystal.

IPC 1-7 (main, further and additional classification)

G02F 1/35; G02F 2/02

IPC 8 full level (invention and additional information)

G02F 1/37 (2006.01); G02F 1/355 (2006.01); H01S 3/00 (2006.01); H01S 3/10 (2006.01); A61B 18/20 (2006.01); A61C 1/00 (2006.01); A61F 9/01 (2006.01); G02F 1/35 (2006.01)

CPC (invention and additional information)

A61F 9/00821 (2013.01); A61F 9/00804 (2013.01); G02F 1/3551 (2013.01); A61B 18/20 (2013.01); A61C 1/0046 (2013.01); A61F 9/00814 (2013.01); A61F 2009/00863 (2013.01); A61F 2009/00872 (2013.01); A61F 2009/00897 (2013.01); G02F 1/3534 (2013.01); G02F 1/37 (2013.01); G02F 2001/3505 (2013.01); G02F 2001/3507 (2013.01)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 9904317 A1 19990128; AU PO796897 D0 19970807; BR 9811010 A 20000822; CA 2294885 A1 19990128; EP 1000383 A1 20000517; EP 1000383 A4 20030709; IL 134005 D0 20010430; JP 2001510908 A 20010807

INPADOC legal status

2007-02-23 [REG HK WD] APPLICATIONS WITHDRAWN, DEEMED TO BE WITHDRAWN, OR REFUSED AFTER PUBLICATION IN HONG KONG

- Ref Legal Event Code: WD

- Ref Document Number: 1027871

- Country of Ref Document: HK

2004-11-10 [18W] WITHDRAWN

- Ref Legal Event Code: 18W

- Effective date: 20040914

2003-07-09 [A4] SUPPLEMENTARY SEARCH REPORT

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- Effective date: 20030527

2000-07-05 [RAX] REQUESTED EXTENSION STATES OF THE EUROPEAN PATENT HAVE CHANGED

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- Free Format Text: LT PAYMENT 20000214;RO PAYMENT 20000214

2000-05-17 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000214

2000-05-17 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2000-05-17 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

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- Free Format Text: RO PAYMENT 20000214