Chamfered-edge laser cleaving of transparent materials

被引：3

作者：

Kaiser, Myriam ^{[1
]}

Dounassre, Hamza ^{[1
]}

Kahmann, Max ^{[1
]}

Hellstern, Julian ^{[2
]}

Kleiner, Jonas ^{[1
]}

Tillkorn, Christoph ^{[2
]}

Flamm, Daniel ^{[1
]}

机构：

[1] TRUMPF Laser & Syst Tech GmbH, Johann Maus Str 2, D-71254 Ditzingen, Germany

[2] TRUMPF Laser GmbH, Aichhalder Str 39, D-78713 Schramberg, Germany

来源：

FRONTIERS IN ULTRAFAST OPTICS: BIOMEDICAL, SCIENTIFIC, AND INDUSTRIAL APPLICATIONS XXII | 2022年 / 11991卷

关键词：

Beam shaping; ultrafast optics; laser materials processing; digital holography; structured light; GLASS; BEAMS;

D O I：

10.1117/12.2607604

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

We report on the separation of glass substrates with customized edge contours including C-shapes. To achieve single-pass laser modifications along the entire contour geometry a processing optics is presented where a multitude of foci are simultaneously distributed inside a specific volume using a large-working-volume focusing unit. Tangential angles of the focus trajectory to the surface can be almost arbitrarily chosen and amount to even less than 45-deg in case of aiming for chamfered edges. After having induced laser modifications along the desired edge geometry, separation is done chemically in the present case. The glass articles, thus fabricated, meet the demands of the display industry in terms of bending strength and surface quality.

引用

页数：10

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