Patent · US Active

Method and optical assembly for analysing a sample

US8350230B2 · kind B2 · utility

4Cited by

1References

11Claims

0Family size

Assignee

Carl Zeiss Microscopy GmbH · DE

Inventors

Christopher Power · Jena, DE
Helmut Lippert · Jena, DE
Dietrich Christian · Jena, DE
Benno Radt · Jena, DE

Key dates

Filing date	Sep 18, 2008
Grant date	Jan 8, 2013
Priority date	—
Expiry date	Jan 27, 2029

Classification

Technology area (CPC G)Physics
CPC primaryG02B21/06
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A method and an arrangement for analyzing a specimen, wherein the specimen is supported so as to be rotatable around an axis of rotation and displaceable in all three spatial directions and is illuminated by a first illumination device. Light radiated from the specimen is imaged on a detection device. A plurality of sectional images of the specimen are recorded at different settings of the rotational angle, and the specimen is rotated. The recorded sectional images are fused to form a data set of spatial image data of the specimen. The specimen is then illuminated by a second illumination device perpendicular to the axis of rotation, wherein a plurality of shadow images of the specimen are recorded and the specimen is rotated. A second data set of spatial image data of the specimen is constructed from the recorded shadow images by means of a back projection algorithm.

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