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US 12,420,502 B2Granted
Methods of manufacturing an ophthalmic lens including asymmetric gradient index optical elements
AssigneeCooperVision International Limited
InventorsPaul Chamberlain, Sourav Saha, Arthur Bradley
Life of this patent
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Abstract
A method (100) of manufacturing an ophthalmic lens is described. The method comprises providing a lens substrate (103) and providing a photocurable film (105). The method comprises using a digital light projection system to photocure at least one region of the film, thereby producing at least one photocured gradient index optical element having an asymmetric refractive index profile (107). The method comprises applying the film to a surface of the lens substrate (109).
Claims24
A method of manufacturing an ophthalmic lens comprising:
- providing a lens substrate;
- providing a photocurable film;
- using a digital light projection system to photocure a plurality of regions of the film, thereby producing a plurality of photocured gradient index optical elements, each of the plurality of photocured gradient index optical elements having an asymmetric refractive index profile that varies in a radial direction and a transverse direction, wherein the photocured film has a uniform thickness;
- and
- applying the film to a surface of the lens substrate,
- wherein the ophthalmic lens is a spectacle lens or a contact lens.
3 more elements
Dependencies are inferred from the claim text.