US 12,478,249 B2
Method and device for measuring the vision of a person
Alexander Leube, Aalen (DE); Eric Nehrbass, Aalen (DE); and Simon Staudenmaier, Salach (DE)
Assigned to Carl Zeiss Vision International GmbH, Aalen (DE)
Filed by Carl Zeiss Vision International GmbH, Aalen (DE)
Filed on Mar. 5, 2024, as Appl. No. 18/595,704.
Application 18/595,704 is a continuation of application No. PCT/EP2022/079624, filed on Oct. 24, 2022.
Claims priority of application No. 21204486 (EP), filed on Oct. 25, 2021.
Prior Publication US 2024/0206724 A1, Jun. 27, 2024
Int. Cl. A61B 3/032 (2006.01); G01S 13/74 (2006.01)
CPC A61B 3/032 (2013.01) [G01S 13/74 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method for measuring the vision of a person, the method comprising:
determining a distance between a measurement device and the person,
wherein determining the distance includes determining the distance by communicating between a first wireless communication interface of the measurement device and a second wireless communication interface of a portable device on the person;
performing measuring the vision with a measurement component of the measurement device based on the distance;
determining an orientation between the measurement device and the portable device by communicating between the first wireless communication interface and the second wireless communication interface based on a signal strength of a signal communicated between the first wireless communication interface and the second wireless communication interface; and
displaying optotypes with an orientation based on the determined orientation,
wherein performing the measurement of the vision further comprises performing the measurement of the vision based on the determined orientation,
wherein the first wireless communication interface and the second wireless communication interface are Ultra-Wideband communication interfaces,
wherein determining the orientation includes determining an orientation of the head of the person with at least one of headphones worn by the person or with the portable device being held against the head of the person in a predetermined way.