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US 10,702,148 B2Granted
Component, computer program, system, and kit for corrective lens determination
AssigneesCarl Zeiss Vision International GmbH, Carl Zeiss AG
InventorsTobias Breuninger, Frank Schäffel, Siegfried Wahl, Karsten Lindig, Arne Ohlendorf, Jesús-Miguel Cabeza-Guillén
Life of this patent
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Abstract
A component for a mobile computer device, such as a smartphone, can be secured to the housing of the mobile computer device. The component can deflect the light of a built-in light source of the mobile computer device with an optical element and optionally filter the same, or can provide its own light source to improve the option of measuring eccentric photorefraction using the mobile computer device.
Claims6
A method for corrective lens determination, the method comprising:
- determining a distance between a mobile computer apparatus and a head of a user;
- recording an image of an eye of the user;
- and
- carrying out an eccentric photorefraction determination based on the image and the distance,
- wherein the determination of the distance is based on performing at least two of:
- 1) inputting an estimated length of an arm of the user into the mobile computer apparatus,
- 2) inputting a length of a selfie stick into the mobile computer apparatus, or
- 3) utilizing an autofocus setting of a camera of the mobile computer apparatus.
5 more elements
Dependencies are inferred from the claim text.