Refractive-diffractive hybrid lens, in particular for beam shaping of high power diode lasers

US7345828B2 · kind B2 · utility

Assignee

• Schott AG · DE

Inventors

• Edgar Pawlowski · Stadecken-Elsheim, DE
• Matthias Brinkmann · Klein-Winternheim, DE
• Wolfram Beier · Essenheim, DE
• Jörg Luttmer · Tuttlingen, DE
• Bernd Wölfing · Mainz, DE
• Polina Ebeling · Mainz, DE

Key dates

• Filing date: Nov 18, 2004
• Grant date: Mar 18, 2008
• Expiry date: Nov 18, 2024

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01S5/4025
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A cylindrical lens having a refractive optical element and a diffractive optical element is provided. The cylindrical lens can be fabricated cost effectively and precisely, and optical aberrations and defects in semiconductor diode laser arrangements can be corrected. The diffractive optical element can include various segments.