Illumination apparatus for a microscope, method for operating it, and microscope having an illumination apparatus

US11314068B2 · kind B2 · utility

Assignee

• Carl Zeiss Microscopy GmbH · DE

Inventors

• Thomas Kalkbrenner · Jena, DE
• Jakob Haarstrich · Jena, DE
• Jörg Siebenmorgen · Jena, DE
• Andreas Möbius · Kaarst, DE

Key dates

• Filing date: Sep 18, 2019
• Grant date: Apr 26, 2022
• Expiry date: Nov 30, 2040

Classification

• Technology area (CPC G): Physics
• CPC primary: G02F2203/05
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

The invention relates to an illumination apparatus for a microscope, a microscope and a method for operating the illumination apparatus. The illumination apparatus has a sample space for holding a sample that is to be illuminated, and at least one laser light source. An objective for the directional emission of laser radiation of a first wavelength along a first optical axis that is directed into the sample space, and with a cover of the sample space by which the sample space is delimited at least on one of its sides. The cover further has a layer that is either impenetrable for the laser radiation over a blocking angle range of the illumination angle and is transmissive for radiation of a second wavelength over a transmitted light angle range, or has a controllable layer that, in a first control state, is transparent for radiation of the second wavelength and, in a second control state, is impenetrable for the laser radiation of the first wavelength.