Apochromatically corrected microscope objective

US7268953B2 · kind B2 · utility

Assignee

• Carl Zeiss Micromanaging GmbH · DE

Inventors

• Manfred Matthae · Jena, DE
• Werner Kleinschmidt · Dransfeld, DE
• Georg Herbst · Oettingen, DE

Key dates

• Filing date: Jun 7, 2006
• Grant date: Sep 11, 2007
• Expiry date: Jun 7, 2026

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B21/02
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A microscope objective with high aperture, large object field and apochromatic correction in the wavelength range from ultraviolet to infrared. The microscope objective includes, starting from the object level: a first group of lenses with overall positive refraction power, including a cemented group with positive-negative refraction power effect, made out of one of two lenses, and of a further lens with positive refraction power, a second group of lenses with positive refraction power, including three cemented lenses, a third group of lenses with negative refraction power, including three cemented lenses, in which the side that faces the image plane is convex, a fourth group of lenses, consisting of a lens with positive refraction power and a cemented group of two lenses with positive-negative refraction power, and a fifth group of lenses, including two lenses in a cemented group with negative-positive refraction power.