Microscope comprising an exchangeable intermediate tube

US6327080A · kind A · utility

Assignee

• Carl Zeiss Jena GmbH · DE

Inventors

• Hans Brinkmann · Troisdorf, DE
• Peter Dietrich · Oberkochen, DE
• Hans-Juergen Dobschal · Kleinromstedt, DE
• Heinz-Guenther Ozimek · Northeim, DE
• Georg Herbst · Oettingen, DE

Key dates

• Filing date: Feb 25, 2000
• Grant date: Dec 4, 2001
• Expiry date: Feb 25, 2020

Classification

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

Abstract

A microscope with an exchangeable intermediate tube that is inserted between the microscope objective and an ocular eyepiece instead of the tube lens and which is adjustable in a defined manner with respect to its height and has relay or transfer optics with an essentially constant intersection length, comprising, in the observation direction, a first lens group with a long focal length, preferably greater than 10 m, and a second lens group with a short focal length whose common focal length corresponds to the focal length of a standard tube lens, preferably approximately 164 mm, wherein the distance between the first and second lens group is adjustable.