Variable optic ophthalmic device including liquid crystal elements
First Claim
Patent Images
1. An energized ophthalmic lens device comprising:
- a variable optic insert comprising at least a portion within the optical zone and comprising an insert front curve piece and an insert back curve piece, wherein a back surface of the front curve piece and a front surface of the back curve piece have differing surface topology at least in the portion within the optical zone, the variable optic insert further comprising a non-optical zone;
an energy source embedded in the variable optic insert in at least a region comprising the non-optical zone; and
a layer of liquid crystal material operatively associated with the variable optic insert.
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Abstract
Methods and apparatuses for providing a variable optic insert into an ophthalmic lens as set forth. An energy source is capable of powering the variable optic insert included within the ophthalmic lens. In some embodiments, an ophthalmic lens is cast-molded from a silicone hydrogel. The various ophthalmic lens entities may include electroactive liquid crystal layers to electrically control refractive characteristics.
52 Citations
21 Claims
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1. An energized ophthalmic lens device comprising:
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a variable optic insert comprising at least a portion within the optical zone and comprising an insert front curve piece and an insert back curve piece, wherein a back surface of the front curve piece and a front surface of the back curve piece have differing surface topology at least in the portion within the optical zone, the variable optic insert further comprising a non-optical zone; an energy source embedded in the variable optic insert in at least a region comprising the non-optical zone; and a layer of liquid crystal material operatively associated with the variable optic insert. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An energized ophthalmic lens device comprising:
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a variable optic insert comprising at least a portion within the optical zone, and comprising an insert front curve piece, an intermediate curve piece and an insert back curve piece, wherein a back surface of the front curve piece and a front surface of the intermediate curve piece have differing surface topology at least in the portion within the optical zone, the variable optic insert further comprising a non-optical zone; an energy source embedded in the variable optic insert in at least a region comprising the non-optical zone; and at least a first and second layer of liquid crystal material operatively associated with the variable optic insert. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. An energized ophthalmic lens device comprising:
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a variable optic insert comprising at least a portion within the optical zone and comprising an insert front curve piece and an insert back curve piece, wherein a back surface of the front curve piece and a front surface of the back curve piece have differing surface topology at least in the portion within the optical zone, the variable optic insert further comprising a non-optical zone; an energy source embedded in the variable optic insert in at least a region comprising the non-optical zone; a single layer of aligned liquid crystal material operatively associated with the variable optic insert, wherein the single layer of aligned liquid crystal material interacts strongly with a first polarization orientation of incident light and not with a second polarization orientation of incident light, wherein the first polarization orientation of incident light is orthogonal to the second polarization orientation of incident light; and
wherein the differential interaction of the single layer with the first polarization orientation of incident light forms a first focal characteristic different from a second focal characteristic determined by interaction of the single layer with the second polarization orientation of incident light.
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Specification