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US 2026/0227648 A1Published application
Prismatic optical elements for presbyopia correction
AssigneeEssilor International
InventorsOlivier ROUSSEL, Bruno FERMIGIER, Eric GACOIN, Matthieu GUILLOT, Gildas MARIN
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Abstract
A spectacle lens which provides comfortable vision over an entire range from a long distance to a short distance including intermediate distances therebetween, and to provide spectacles having the same. A lens disclosed herein is configured such that its power is highest in a predetermined portion near the center thereof and is smoothly and gradually reduced outward therefrom.
Claims20
A lens element intended to be worn in front of an eye of a wearer, the lens element comprising:
- a holder having at least one first refractive power;
- and
- a plurality of sets of optical elements superimposed on the holder, each set being formed by a plurality of optical elements having a common focal point Fi associated with at least an optical power,
- wherein for each set of optical elements, a prism angle of each optical element of this set varies according to a distance between the optical element and the common focal point of said set of optical elements.
1 more element
Dependencies are inferred from the claim text.