Optical system with polarization compensator

US6252712A · kind A · utility

Assignee

• Carl Zeiss Stiftung · DE

Inventors

• Gerhard Furter · Ellwangen, DE
• Winfried Kaiser · Cologne, DE
• Christian Wagner · Rosenheim, DE
• Michael Gerhard · Aalen, DE
• Karl-Heinz Schuster · Oberkochen, DE

Key dates

• Filing date: Feb 19, 1999
• Grant date: Jun 26, 2001
• Expiry date: Feb 19, 2019

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S359/90
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

An optical system with at least one optical element that causes a disturbance of the distribution of polarization over the cross section of a light beam wherein at least one birefringent optical element is provided, with a thickness which varies irregularly over the cross section, such that the disturbance of the distribution of polarization is at least partially compensated.