US 11,867,984 B2
Methods for determining the near point, for determining the near point distance, for determining a spherical refractive power, and for producing a spectacle lens, and corresponding mobile terminals and computer programs
Claudius Weimann, Böbingen (DE)
Assigned to Carl Zeiss Vision International GmbH, Aalen (DE)
Filed by Carl Zeiss Vision International GmbH, Aalen (DE)
Filed on Jan. 20, 2023, as Appl. No. 18/157,454.
Application 18/157,454 is a continuation of application No. PCT/EP2021/071167, filed on Jul. 28, 2021.
Claims priority of application No. 20188386 (EP), filed on Jul. 29, 2020.
Prior Publication US 2023/0152604 A1, May 18, 2023
Int. Cl. G02C 7/02 (2006.01); A61B 3/032 (2006.01); A61B 3/10 (2006.01); A61B 5/00 (2006.01)
CPC G02C 7/027 (2013.01) [A61B 3/032 (2013.01); A61B 3/10 (2013.01); A61B 5/6898 (2013.01)] 29 Claims
OG exemplary drawing
 
1. A method for a mobile terminal having a built-in camera, a built-in acceleration sensor, and a processor, for determining a near point of a person, the method comprising:
performing a movement of the mobile terminal in front of the person;
repeatedly recording surroundings of the mobile terminal by the built-in camera of the mobile terminal,
the repeated recordings including at least one object other than the person;
repeatedly measuring an acceleration of the mobile terminal by the built-in acceleration sensor of the mobile terminal during a movement of the mobile terminal to the near point of the person; and
determining a position of the mobile terminal at the near point of the person based on the repeated recordings and the repeated measurements.