Stereo-examination systems with image rotation

US8115993B2 · kind B2 · utility

Assignee

• Carl Zeiss Meditec AG · DE

Inventors

• Christoph Hauger · Aalen, DE
• Michael Haisch · Aalen, DE
• Andreas Obrebski · Mülheim an der Ruhr, DE

Key dates

• Filing date: May 28, 2010
• Grant date: Feb 14, 2012
• Expiry date: May 28, 2030

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B21/22
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A stereo-examination system including an objective arrangement configured to receive an object-side beam bundle emanating from the object plane and to convert the object-side beam bundle into an image-side beam bundle and a selection arrangement configured to select at least one pair of partial beam bundles from the image side beam bundle. The system also includes an image transmission apparatus configured to generate stereoscopic images of an object positionable in the object plane from the at least one pair of partial beam bundles and an illumination arrangement. The illumination arrangement includes a light source, a beam coupler to superpose a beam cross-section of the illumination beam with the image-side beam bundle, and a field of a plurality of state-changing elements. The elements are selectively switchable between a first state directed and a second state in which light of the illumination beam is and is not directed to the object plane.