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:
Dec. 05, 2017
Filed:
Aug. 16, 2012
Detlef Hein, Goettingen, DE;
Detlef Hein, Goettingen, DE;
CARL ZEISS MICROSCOPY GMBH, Jena, DE;
Abstract
An apparatus and method for transmitted light illumination for light microscopes having changing effective entrance pupil of an objective. The apparatus has a light source for emitting an illuminating light beam, wherein a beam path of the illuminating light between a diaphragm edge and a sample held by a holding device is free from adjustable beam focussing components. In order to adapt the beam path of the illuminating light to the effective entrance pupil of the objective, the diaphragm edge may be variably positioned in the direction of the optical axis, wherein a position of the diaphragm edge in the direction of the optical axis can be varied irrespectively of a position of the diaphragm edge transversely to the optical axis.