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.
Claims22
1-30. (canceled)
A system for corrective lens determination with eccentric photorefraction, the system comprising:
- a mobile computer apparatus including:
- a housing;
- a camera installed in the housing;
- and
- an integrated light source;
- and
- a component including:
- an optical element configured to adapt an eccentricity of the integrated light source of the mobile computer apparatus for eccentric photorefraction;
- and
- a fastening element configured to fasten the component to the housing releasably in a reversible manner.
A system comprising:
- a mobile computer apparatus including:
- a housing;
- a camera installed in the housing;
- and
- an integrated light source;
- a component including:
- an optical element configured to adapt an eccentricity of the integrated light source of the mobile computer apparatus;
- and
- a fastening element configured to fasten the component to the housing releasably in a reversible manner;
- wherein the optical element is configured to receive light which is emitted by the integrated light source of the mobile computer apparatus and is incident on the optical element in a direction of incidence and to output the light in an emergence direction offset with respect to the direction of incidence,
- wherein the optical element has a light entrance surface configured to receive light from the integrated light source of the mobile computer apparatus and a light exit surface configured to output the received light, and
- wherein the optical element is configured to always output the received light at a same location of the light exit surface within a tolerance range irrespective of a location of the light entrance surface at which the light is received.
A system for corrective lens determination by eccentric photorefraction, the system comprising:
- a mobile computer apparatus including:
- a housing;
- a camera installed in the housing;
- a processor;
- and
- an associated non-transitory storage memory storing a computer program having a program code which, when executed on the processor, carries out corrective lens determination of an eye of a person to be examined by eccentric photorefraction;
- and
- an enclosure element configured to completely or partially enclose the mobile computer apparatus and having at least one light source,
- wherein the at least one light source is arranged on an outer side of the enclosure element, and
- wherein the at least one light source is configured to illuminate an eye with an eccentricity during an eccentric photorefraction measurement.
A method for corrective lens determination, comprising:
- illuminating a person's eye with light from an integrated light source of a mobile computer apparatus,
- recording an image of the person's eye with a camera of the mobile computer apparatus;
- carrying out an eccentric photorefraction determination based on the recorded image;
- and
- adapting an eccentricity of the light to an eccentricity for the eccentric photorefraction determination.
A method for corrective lens determination, comprising:
- measuring a distance between a mobile computer apparatus and a user's head by:
- recording an image of an object having known dimensions;
- and
- determining the distance between the mobile computer apparatus and the user's head from the known dimensions in the recorded image of the object;
- recording an image of an eye of the user's head;
- and
- carrying out an eccentric photorefraction determination based on the recorded image and the distance.
A method for corrective lens determination, comprising:
- illuminating a person's eye with light;
- recording an image of the person's eye with a camera of a mobile computer apparatus;
- and
- carrying out an eccentric photorefraction determination based on the recorded image of the person's eye;
- wherein the light from at least one light source of an enclosure element, which is configured to completely or partially enclose the mobile computer apparatus, is emitted with an eccentricity for the eccentric photorefraction, and
- wherein the at least one light source is arranged on an outer side of the enclosure element.
Dependencies are inferred from the claim text.