Invention Grant
- Patent Title: Multi-curvature edge for ophthalmic lenses
-
Application No.: US16376064Application Date: 2019-04-05
-
Publication No.: US11607308B2Publication Date: 2023-03-21
- Inventor: Kamal K. Das , Jian Liu
- Applicant: ALCON INC.
- Applicant Address: CH Fribourg
- Assignee: ALCON INC.
- Current Assignee: ALCON INC.
- Current Assignee Address: CH Fribourg
- Main IPC: A61F2/16
- IPC: A61F2/16

Abstract:
An exemplary ophthalmic lens includes an optic comprising an anterior optic surface and a posterior optic, and a multi-curvature optical edge surrounding the optic and connecting the anterior optic surface to the posterior optic surface, the multi-curvature optical edge comprising a plurality of tangentially-connected curved surfaces configured to mitigate positive dysphotopsia by directing or diffusing from light incident on the multi-curvature optical edge away from a fovea of a patient.
Information query
IPC分类: