Contact element for laser machining

US9265658B2 · kind B2 · utility

Assignee

• Carl Zeiss Meditec AG · DE

Inventors

• Hans-Jürgen Dobschal · Kleinromstedt, DE
• Marco Hanft · Jena, DE
• Mario Gerlach · Hohen Neuendorf, DE

Key dates

• Filing date: Jan 25, 2005
• Grant date: Feb 23, 2016
• Expiry date: Aug 2, 2030

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61F2009/00872
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An optical contact element for coupling a laser processing device to an object to be processed is described, wherein the laser processing device focuses a scanned laser beam through a surface of the object into a certain region of the object and the contact element comprises an entrance side for receiving the scanned laser radiation and an exit side imparting a defined surface curvature to the surface of the object upon contact therewith, wherein a diffractive optical element is provided on the entrance side, which element reduces the angle of incidence of the laser radiation on the surface of the object.