Device for generating a quadrangular illuminating field and use of such device in an optical device comprising a surface to be illuminated having a predetermined shape

US6578999B2 · kind B2 · utility

Assignee

• Carl Zeiss Jena GmbH · DE

Inventors

• Dietrich Schmidt · Camp Hill, US
• Christfried Symanowski · Jena, DE
• Gudrun Schroeter · Jena, DE

Key dates

• Filing date: Jan 7, 2002
• Grant date: Jun 17, 2003
• Expiry date: Jan 7, 2022

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B27/0911
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

In a device for generating a quadrangular illuminating field, having a light mixing rod, which has a quadrangular cross-section as well as a quadrangular inlet area and a quadrangular outlet area and guides light coupled in via the inlet area to the outlet area, in order to generate therein the quadrangular illuminating field, the outlet area is limited by four rectilinear sides, of which two each meet in one of the corners of the outlet area, and, in one or two corners, the sides meeting therein converge at right angles while, in the other corners, the sides meeting therein converge at an angle, which is not equal to 90°.