LENS WITH CONTINUOUS POWER GRADATION
First Claim
1. An ophthalmic lens providing a desired prescription, comprising:
- a first lens surface having a useable optical area and a second lens surface on the opposite side of the lens from the first lens surface,wherein the first lens surface comprises a continuous, gradual change in optical power over substantially the entire useable optical area, wherein the continuous, gradual change in optical power comprises a change in spherical power and increases without inflection points or discontinuities from one edge of the useable optical area to substantially the opposite edge of the useable optical area; and
wherein the second lens surface is configured to cooperate with the first lens surface such that the lens provides the desired prescription, including at least a first effective area of stabilized optical power.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention is embodied in ophthalmic lenses having a first lens surface that is described by a continuous, gradual increase in optical power that proceeds without inflection points of discontinuities across substantially the entire useable optical area of this lens surface, and an opposite surface of the lens configured to cooperate with the power gradation of the first surface to provide a desired prescription, including at least one stabilized area of optical power. The power gradation of the first surface increases from one edge of the useable area to substantially the opposite edge, and may increase according to linear or non-linear relationships. In another preferred embodiment, the two lens surfaces cooperate to create two stabilized areas of optical power, for a prescription with near-viewing and distance-viewing values.
39 Citations
23 Claims
-
1. An ophthalmic lens providing a desired prescription, comprising:
-
a first lens surface having a useable optical area and a second lens surface on the opposite side of the lens from the first lens surface, wherein the first lens surface comprises a continuous, gradual change in optical power over substantially the entire useable optical area, wherein the continuous, gradual change in optical power comprises a change in spherical power and increases without inflection points or discontinuities from one edge of the useable optical area to substantially the opposite edge of the useable optical area; and wherein the second lens surface is configured to cooperate with the first lens surface such that the lens provides the desired prescription, including at least a first effective area of stabilized optical power. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14)
-
-
9. (canceled)
-
15. An ophthalmic lens for providing a desired prescription having both distance-viewing and near-viewing values, comprising:
-
a first lens surface having a useable optical area and a second lens surface on the opposite side of the lens from the first lens surface, wherein the first lens surface comprises a continuous, gradual change in optical power over substantially the entire useable optical area, wherein the continuous, gradual change in optical power comprises a linear increase in power and increases without inflection points or discontinuities from one edge of the useable optical area to substantially the opposite edge of the useable optical area; and wherein the second lens surface is configured to cooperate with the first lens surface such that the lens provides the desired prescription, including at least a first effective area of stabilized optical power for distance-viewing and at least a second effective area of stabilized optical power for near-viewing. - View Dependent Claims (16, 19, 20)
-
-
17-18. -18. (canceled)
-
21. An ophthalmic lens for providing a desired prescription having both distance-viewing and near-viewing values, comprising:
-
a first lens surface having a useable optical area and a second lens surface on the opposite side of the lens from the first lens surface, wherein the first lens surface comprises a continuous, gradual change in optical power over substantially the entire useable optical area, wherein the continuous, gradual change in optical power comprises a non-linear increase in power and increases without inflection points or discontinuities from one edge of the useable optical area to substantially the opposite edge of the useable optical area; and wherein the second lens surface is configured to cooperate with the first lens surface such that the lens provides the desired prescription, including at least a first effective area of stabilized optical power for distance-viewing and at least a second effective area of stabilized optical power for near-viewing. - View Dependent Claims (22, 23)
-
Specification