EP 4263113 A1 20231025 - APPARATUS AND METHOD FOR CUTTING A MATERIAL
Title (en)
APPARATUS AND METHOD FOR CUTTING A MATERIAL
Title (de)
VORRICHTUNG UND VERFAHREN ZUM TRENNEN EINES MATERIALS
Title (fr)
APPAREIL ET PROCÉDÉ DE COUPE D'UN MATÉRIAU
Publication
Application
Priority
- DE 102020134195 A 20201218
- EP 2021079552 W 20211025
Abstract (en)
[origin: WO2022128214A1] The invention relates to a method and an apparatus for cutting a workpiece (1) containing a transparent material, wherein material modifications (5) are introduced into the transparent material of the workpiece (1) along a cutting line (4) by means of ultrashort laser pulses of an ultrashort pulse laser, whereupon the material of the workpiece (1) is cut, in a cutting step, along the material modification area (50) formed thereby, the laser pulses being applied to the workpiece (1) at an angle of attack (α), the optical aberration of the laser pulses during the transition into the material of the workpiece (1) being reduced by an aberration correction device (7), the laser beam (20) having a radially asymmetrical transverse intensity distribution (220), said transverse intensity distribution (220) being elongate along a first axis (A) compared to a second axis (B), the second axis (B) running perpendicularly to the first axis (A).
IPC 8 full level
B23K 26/0622 (2014.01); B23K 26/064 (2014.01); B23K 26/073 (2006.01); B23K 26/53 (2014.01); G02B 27/09 (2006.01)
CPC (source: EP KR US)
B23K 26/0624 (2015.10 - EP KR US); B23K 26/0643 (2013.01 - US); B23K 26/0648 (2013.01 - EP KR US); B23K 26/0736 (2013.01 - EP KR); B23K 26/0823 (2013.01 - US); B23K 26/083 (2013.01 - EP KR); B23K 26/0861 (2013.01 - US); B23K 26/0876 (2013.01 - EP KR); B23K 26/38 (2013.01 - KR); B23K 26/53 (2015.10 - EP KR US); B23K 37/0235 (2013.01 - EP KR); G02B 5/001 (2013.01 - KR); G02B 27/0025 (2013.01 - EP KR); G02B 27/095 (2013.01 - EP KR); G02B 27/0972 (2013.01 - KR); B23K 2103/54 (2018.07 - EP KR); G02B 5/001 (2013.01 - EP); G02B 27/0972 (2013.01 - EP)
Citation (search report)
See references of WO 2022128214A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2022128214 A1 20220623; CN 116783025 A 20230919; DE 102020134195 A1 20220623; EP 4263113 A1 20231025; KR 20230117753 A 20230809; US 2023364705 A1 20231116
DOCDB simple family (application)
EP 2021079552 W 20211025; CN 202180085696 A 20211025; DE 102020134195 A 20201218; EP 21801071 A 20211025; KR 20237024163 A 20211025; US 202318335152 A 20230615