ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,478,249, issued on Nov. 25, was assigned to Carl Zeiss Vision International GmbH (Aalen, Germany).
"Method and device for measuring the vision of a person" was invented by Alexander Leube (Aalen, Germany), Eric Nehrbass (Aalen, Germany) and Simon Staudenmaier (Salach, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "Methods and devices for measuring the vision of a person are provided The method includes determining a distance between a measurement device and the person. The distance is determined by communicating between a first wireless communication interface of the measurement device and a second wireless communication interface of a portable ...