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:
Jul. 09, 2024
Filed:
Sep. 24, 2019
Carl Zeiss Meditec, Inc., Dublin, CA (US);
Carl Zeiss Meditec Ag, Jena, DE;
Jochen Straub, Pleasanton, CA (US);
Robert Sprowl, Livermore, CA (US);
Yuan Liu, Dublin, CA (US);
Matthew J. Everett, Livermore, CA (US);
CARL ZEISS MEDITEC, INC., Dublin, CA (US);
CARL ZEISS MEDITEC AG, Jena, DE;
Abstract
A low cost fundus camera uses LED light sources placed adjacent the camera's imaging stop, and thereby eliminates the need for optics for introducing the light source to the camera's optical path. Lens reflex in the pupil relay is avoided by using only reflective optics in the pupil relay. Reflex from the LED is mitigated by actuating each LED separately, one at a time, and capturing a separate image with each actuated LED. Reflex-free regions of each captured image are extracted and combined to create a composite reflex-free image.