Tube for a surgical microscope

US8514488B2 · kind B2 · utility

Assignee

• Carl Zeiss Meditec AG · DE

Inventors

• Christian Lucke · Oberkochen, DE
• Hartmut Gartner · Oberkochen, DE
• Andre Muller · Wuppertal, DE
• Martin Schneider · Erlangen, DE
• Alfons Abele · Trochtelfingen, DE
• Nadine Kolster · Oberkochen, DE
• Dirk Holzmann · Pforzheim, DE
• Wolfgang Robra · Bad Wildbad, DE
• Bernd Rudisile · Keltern, DE
• Michael Czerwinski · Pforzheim, DE

Key dates

• Filing date: Aug 12, 2010
• Grant date: Aug 20, 2013
• Expiry date: Jul 24, 2031

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B21/24
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A tube of a surgical microscope has a base part, intermediate part pivotable about a rotational axis on the base part, and an ocular part pivotable about a rotational axis on the intermediate part. The imaging beam path is guided through the base part, intermediate part and pivotable ocular part. The tube has a tube lens system which transfers a parallel imaging beam path into an intermediate image. The parallel imaging beam path enters via an opening in a connecting piece of the base part. The tube has a first displaceable mirror element movable about the rotational axis on the base part. The tube has a further displaceable mirror element movable on the intermediate part about the rotational axis. The first mirror element directs the imaging beam path to the further mirror element. The first mirror element and further mirror element are mounted in the imaging beam path between a lens unit having positive refractive power and a lens unit having negative refractive power.