Patent ID: 11867984
Assignee: CARL ZEISS VISION INTERNATIONAL GMBH
Field: Medical technology (Instruments)
Classification: CPC G  A | IPC A  G

Claim 25:
26. The mobile terminal as claimed in claim 19, the mobile device being further configured for determining a spherical power for a spectacle lens, wherein the processor is configured so that the mobile terminal determines the position of the mobile terminal at the near point in a stationary coordinate system, and
wherein the mobile terminal furthermore is configured to carry out the following steps:
determining the position of at least one eye of the person in the stationary coordinate system, and
determining the near-point distance based on the position of the mobile terminal at the near point and the position of the at least one eye; and
determining the spherical power on the basis of the near-point distance and a reading distance of the person,
wherein the processor is configured so that the mobile terminal carries out the following steps:
determining the position of the mobile terminal in the reading position in the stationary coordinate system on the basis of repeatedly recording the surroundings of the mobile terminal using the built-in camera of the mobile terminal and repeatedly measuring the acceleration of the mobile terminal using the built-in acceleration sensor of the mobile terminal during a movement of the mobile terminal into the reading position; and
determining the reading distance on the basis of the position of the mobile terminal in the reading position and the position of the eyes.