Laserverarbeitungsvorrichtung mit einem optischen System

Details

Veröffentlichungs-Nr.

EP2716398

Aktenzeichen

EP13179383

Anmeldetag

6. August 2013

Veröffentlichung

25. Oktober 2017

Erteilung

25. Oktober 2017

Rechtsraum

EP

IPC

B23K26/06B23K26/20B23K26/38G02B3/10

Abstract

Provided are an optical system (7) and a laser processing apparatus with which spattering can be suppressed by reducing an evaporation reactive force at a workpiece by forming two focal points (F1, F2) on the optical axis, using a simple configuration. An optical system (7) is provided with a convex lens (8) that focuses laser light, and a concave lens (9) that is disposed on the same optical axis as the laser light that passes through the convex lens (8), wherein the concave lens (9) has a first region that has a through-hole (11), that is positioned on the optical axis, and that does not have lens properties, as well as a second region that surrounds the first region and that diverges the laser light.

Anmelder

Firma

MITSUBISHI HEAVY INDUSTRIES, LTD.

Land

🇯🇵 Japan

Fachgebiete