The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 02, 2010
Filed:
Mar. 21, 2008
Renhu Shi, Goettingen, DE;
Anke Vogelgsang, Goettingen, DE;
Thomas Bocher, Goettingen, DE;
Werner Kleinschmidt, Adelebsen, DE;
Renhu Shi, Goettingen, DE;
Anke Vogelgsang, Goettingen, DE;
Thomas Bocher, Goettingen, DE;
Werner Kleinschmidt, Adelebsen, DE;
Carl Zeiss MicroImaging GmbH, Jena, DE;
Abstract
A microscope objective having at least four lenses or groups of lenses and which can be used to improve image contrast. According to the invention, a phase plate, aligned concentrically to the optical axis, can be integrated into and taken out of the air space between the first lens and the second lens, as viewed from the object side. The defined arrangement of the phase plate and the associated shift of the real pupil into the air space between the first two lenses or groups of lenses, respectively, of the microscope objective allows a microscope objective, initially designed as a bright-field variant, to be redesigned as a phase contrast variant with relative ease.