Patent · US Active

Method for detecting and controlling supply of an immersion medium

US9753266B2 · kind B2 · utility

0Cited by

3References

10Claims

0Family size

Assignee

Carl Zeiss Microscopy GmbH · DE

Inventors

Ralf Steinmeyer · Hannover, DE
Reiner Mitzkus · Oettingen, DE
Timo Rojahn · Uslar, DE

Key dates

Filing date	Jun 30, 2014
Grant date	Sep 5, 2017
Priority date	—
Expiry date	Jul 15, 2034

Classification

Technology area (CPC G)Physics
CPC primaryG02B21/244
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A method for detecting and controlling supply of an immersion medium into an immersion film region between the front lens of a microscope objective and a preparation, particularly in automated microscopes, using a light source which is reflected into the microscope beam path by means of a beam splitter. The state of the immersion film region is recorded and evaluated in a detection unit of the microscope or a detection unit of the autofocus device through an autofocus signal of the light source and/or a reflection of a modulation object arranged in the intermediate image plane of an incident light illumination, and is transmitted to a control unit for the purpose of a change or an error treatment of the immersion process.

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