Intraocular lens
AssigneePhysiol
InventorsYvette Appoline Joséphine Houbrechts, Christophe Robert Marie Armand Pagnoulle, Damien Gatinel
Life of this patent
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Abstract
An intraocular lens (1) including an anterior surface (4) and a posterior surface (5) and having a substantially antero-posterior optical axis (6). In this lens, one of these anterior and posterior surfaces includes a first diffractive profile (9) forming at least one first diffractive focal point (11) of order +1 on said optical axis, and a second diffractive profile (10) forming a second diffractive focal point (12) of order +1 on said optical axis which is distinct from the first diffractive focal point of order +1. At least one portion of said second diffractive profile is superposed to at least one portion of the first diffractive profile.
Claims20
An intraocular lens comprising:
- an anterior surface and a posterior surface and having a substantially antero-posterior optical axis wherein one of these anterior and posterior surfaces includes a first diffractive profile forming at least one first diffractive focal point of order +1 on said optical axis, and a second diffractive profile forming a second diffractive focal point of order +1 on said optical axis which is distinct from said first diffractive focal point of order +1, at least one portion of said second diffractive profile being superposed on at least one portion of said first diffractive profile so that an order +2 of said second diffractive profile is added to said order +1 of said first diffractive profile.
Dependencies are inferred from the claim text.