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. 31, 2026
Filed:
Oct. 12, 2021
Carl Zeiss Meditec Ag, Jena, DE;
Andreas Weyhausen, Jena, DE;
Mark Bischoff, Jena, DE;
Gregor Stobrawa, Jena, DE;
Marco Lehnort, Jena, DE;
Carl Zeiss Meditec AG, jena, DE;
Abstract
A method for centering a contact glass relative to a patient's eye includes a) providing a fixation light through a contact glass to align the patient's eye by fixating on the fixation light; b) detecting an image of light pattern that is imaged on the eye's surface; c) presenting the image over the eye with the contact glass with overlaying of virtual markings, wherein a first marking identifies the central axis of the contact glass and a second marking identifies a reference marking, which is derived from the image of the light pattern as lying on the central axis of the contact glass; d) laterally positioning the contact glass such that a distance between the markings is minimized; and e) establishing the position of the eye at which the second marking is located when the markings adopt the minimized distance and registering the position of the vertex.