Patent · US Active

Device and method for feeding an immersion medium

US11216017B2 · kind B2 · utility

2Cited by

4References

27Claims

0Family size

Assignee

LEICA MICROSYSTEMS CMS GMBH · DE

Inventors

Alexander W. Weiss · Linden, DE
Sebastian HITZLER · Großaltenstädten, DE
Christian Schumann · Gießen, DE

Key dates

Filing date	Mar 31, 2020
Grant date	Jan 4, 2022
Priority date	—
Expiry date	May 21, 2040

Classification

Technology area (CPC G)Physics
CPC primaryG02B21/24
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A feed device for an immersion medium for use with an objective enabling a specimen to be imaged microscopically includes a cap fitted releasably or fixedly to the objective and delimiting a receptacle space for the immersion medium. The cap has an exit opening aligned with an optical element of the objective facing the specimen. The immersion medium held in the receptacle space is feedable through the exit opening to a target space situated between the optical element of the objective and the specimen. A sensor is integrated in the cap and has an electrode structure configured to detect an amount of the immersion medium fed through the exit opening to the target space. The electrode structure at least partly encloses the exit opening and has a spatial detection region extending away from the exit opening in a radial direction.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.