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:
Apr. 13, 2010
Filed:
Oct. 14, 2004
Peter Reimer, Ellwangen, DE;
Fritz Straehle, Heubach, DE;
Daniel Kolster, Oberkochen, DE;
Carl Zeiss AG, Oberkochen, DE;
Abstract
A lighting device () is described for an observation device (), in particular for an ophthalmologic operating microscope, as well as such an observation device (). The lighting device () has a light source () as well as a number of optical components, which are provided between light source () and an objective element (). The optical components are designed according to the invention in such a way that the imaging of the lighting pupil () and the observation pupils is produced on the fundus of the eye (). In this way, an exactly defined interaction of the lighting beam path () with an observation beam path is made possible, whereby practical requirements can be fulfilled relative to the homogeneity of the red reflex with simultaneous sufficiently good contrasting.