ALEXANDRIA, Va., June 12 -- United States Patent no. 12,295,660, issued on May 13, was assigned to ALCON INC. (Fribourg, Switzerland).
"Multi-view corneal topographer" was invented by Peter Zieger (Berlin), Martin Grundig (Rangsdorf, Germany), Daniil Nekrassov (Berlin) and Horia Grecu (Berlin).
According to the abstract* released by the U.S. Patent & Trademark Office: "An ophthalmic system for generating a topography of an anterior corneal surface of an eye comprises an illuminator, cameras, and a computer. The illuminator illuminates the anterior corneal surface of the eye with a Placido pattern, which reflects the Placido pattern. Each camera generates an image of the reflected Placido pattern to yield multiple images. At least one came...