Optical assembly for scanning excitation radiation and/or manipulation radiation in a laser scanning microscope, and laser scanning microscope

US11525989B2 · kind B2 · utility

Assignee

• Carl Zeiss Microscopy GmbH · DE

Inventors

• Tiemo Anhut · Jena, DE
• Matthias Wald · Jena, DE
• Daniel Schwedt · Weimar, DE
• Tobias Kaufhold · Jena, DE
• Beate Böhme · Kahla, DE

Key dates

• Filing date: Aug 23, 2018
• Grant date: Dec 13, 2022
• Expiry date: Jul 26, 2039

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B26/101
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

The invention relates to an optical assembly for scanning excitation radiation and/or manipulation radiation in a laser scanning microscope. The optical assembly according to the invention is characterized in that in addition to a first and a second focusing device, a third focusing device is provided in order to generate a third pupil plane which is optically conjugated to a first pupil plane, a third beam deflecting device is arranged on the third pupil plane in order to deflect the excitation radiation and/or manipulation radiation, a first beam deflecting means is provided between the second focusing device and the second pupil plane and the second pupil plane and the third focusing device in order to deflect the excitation radiation and/or manipulation radiation coming from the third focusing device while bypassing the second beam deflecting device in the direction of the second focusing device, a fourth focusing device is provided for generating a fourth pupil plane which is optically conjugated to the third pupil plane, and a variable second beam deflecting means is arranged on the fourth pupil plane in order to switch an optical beam path between a first beam path and a sec…