Optical lens
AssigneeEssilor International
InventorsGuillaume Giraudet, Matthieu Guillot, Daniel Spiegel
Life of this patent
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Abstract
An optical lens intended to be worn in front of an eye of a wearer having at least one prescribed refractive power Px. The optical lens includes a refraction area having a refractive power based on the prescribed refractive power Px for the eye of the wearer and including at least the central zone of the optical lens, and a plurality of optical elements having an optical function of not focusing an image on the retina of the eye of the wearer. The optical elements are arranged based at least on the prescribed refractive power Px and the shape of the retina of the wearer.
Claims15
An optical lens intended to be worn in front of an eye of a wearer having at least one prescribed refractive power Px, the optical lens comprising:
- a refraction area having a refractive power based on the prescribed refractive power Px for the eye of the wearer and comprising at least the central zone of the optical lens;
- and
- a plurality of optical elements having an optical function of not focusing an image on a retina of the eye of the wearer,
- wherein the optical elements are arranged based at least on the prescribed refractive power Px and a shape of the retina of the wearer,
- wherein the optical function of each optical element and/or density of the optical elements are adapted to a degree of asymmetry shape between a nasal and temporal part of the retina of the wearer.
A method implemented by a computer device for determining an optical lens, the optical lens including:
- a refraction area having a refractive power based on prescribed refractive power Px for an eye of a wearer and comprising at least the central zone of the optical lens, and
- a plurality of optical elements having an optical function of not focusing an image on a retina of the eye of the wearer,
- the method comprising:
- providing wearer data comprising at least:
- prescription data indicative of the refractive power Px of the wearer, and retina data indicative of a shape of the retina of the wearer;
- and determining an arrangement of the optical elements based at least on the wearer data,
- wherein the optical function of each optical element and/or density of the optical elements are adapted to a degree of asymmetry shape between a nasal and temporal part of the retina of the wearer.
A method implemented by a computer device for determining an optical lens, the optical lens including:
- a refraction area having a refractive power based on prescribed refractive power Px for an eye of a wearer and comprising at least the central zone of the optical lens, and
- a plurality of optical elements having an optical function of not focusing an image on a retina of the eye of the wearer,
- the method comprising:
- providing wearer data comprising at least:
- prescription data indicative of the refractive power Px of the wearer, and retina data indicative of a shape of the retina of the wearer;
- and determining an arrangement of the optical elements based at least on the wearer data,
- wherein the retina data comprise the global shape of the retina of the wearer within a reference plane and over at least 5° of eccentricity.
Dependencies are inferred from the claim text.