Microscopy system for observing fluorescence in ophthalmology

US9538914B2 · kind B2 · utility

Assignee

• Carl Zeiss Meditec AG · DE

Inventors

• Christoph Hauger · Aalen, DE
• Holger Matz · Unterschneidheim, DE
• Anja Seiwert · Aalen, DE

Key dates

• Filing date: Jun 9, 2014
• Grant date: Jan 10, 2017
• Expiry date: Dec 4, 2034

Classification

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

Abstract

An ophthalmology microscopy system for observing fluorescence comprises an imaging system and an illumination system. The imaging system provides at least one optical imaging path producing a magnified multi-dimensional image of an object disposable in a focal plane of the imaging system, and comprises at least one optical observation filter. The illumination system provides an illumination beam path intersecting the focal plane of the imaging system at a variable angle of less than 90°. The microscopy system comprises first and second operating states. In the first operating state, radiation passing through the illumination beam path has at least in a section along the illumination beam path a spectrum free of a pass band of the observation filter. In the second operating state, radiation passing through the illumination beam path has a spectrum having a bandwidth of at least 200 nm in a range from 380 nm to 780 nm.