Patent · US Active

High-aperture immersion objective

US8724227B2 · kind B2 · utility

3Cited by

10References

7Claims

0Family size

Assignee

Carl Zeiss Microscopy GmbH · DE

Inventor

Rolf Wartmann · Bösinghausen, DE

Key dates

Filing date	Feb 25, 2011
Grant date	May 13, 2014
Priority date	—
Expiry date	Apr 4, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG02B21/02
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A high-aperture immersion objective, in particular for confocal applications in fluorescence microscopy and for TIRF applications, having three subsystems of lenses and/or lens groups. The design of the subsystems has made it possible for a relatively large object field of 0.25 mm to be present in the case of a high-resolution numerical aperture of 1.49. Furthermore, improved transparency is possible up to a wavelength of 340 nm.

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