Objective for evanescent illumination and microscope

US7554726B2 · kind B2 · utility

Assignee

• LEICA MICROSYSTEMS CMS GMBH · DE

Inventors

• Heinrich Ulrich · Heidelberg, DE
• Werner Knebel · Kronau, DE
• Kyra Moellmann · Trippstadt, DE
• Peter Euteneuer · Biebertal, DE

Key dates

• Filing date: May 1, 2006
• Grant date: Jun 30, 2009
• Expiry date: May 1, 2026

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B21/08
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A microscope comprises an objective and a light source that produces an illumination light beam—in particular for evanescent illumination of a sample, which exhibits a focus in the plane of the objective pupil. To adjust the penetration depth, an adjustment mechanism is provided with which the spatial position of the focus within the plane of the objective pupil may be changed.