Geometrically defined shapes and/or contour optical elements for ophthalmic lenses and methods for creating such geometrically defined shapes and/or contour optical elements
AssigneeBrien Holden Vision Institute Limited
InventorsHassan Esfandiarijahromi, Arthur Back
Life of this patent
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Abstract
An ophthalmic lens comprising a front surface; a back surface; and one or more geometrically defined shapes and/or contour optical elements formed by changing the curvature of at least one of the front surface of the ophthalmic lens and/or a back surface of the ophthalmic lens; wherein the one or more geometrically defined shapes and/or contour optical elements on the surface of the ophthalmic lens are formed by applying a function to one or more parameters of the ophthalmic lens in a predefined region of the ophthalmic lens and in a predefined direction.
Claims29
1-79. (canceled)
An ophthalmic lens comprising:
- a base lens comprising:
- a front surface;
- a back surface;
- and
- a power profile for correcting refractive error;
- and
- one or more geometrically defined shapes and/or contour optical elements formed on one or more surfaces of the ophthalmic lens;
- wherein the one or more geometrically defined shapes and/or contour optical elements on the one or more surfaces of the ophthalmic lens are formed by applying one or more modulating functions to one or more parameters of the ophthalmic lens;
- wherein the one or more geometrically defined shapes and/or contour optical elements is formed in one or more predefined regions of the ophthalmic lens and in a predefined direction and the ophthalmic lens comprises at least one other region with an unmodulated base surface forming the base power profile;
- and
- wherein the one or more geometrically defined shapes and/or contour optical elements are configured to create a combination of positive defocus and negative defocus.
Dependencies are inferred from the claim text.