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US 8,770,744 B2Granted
Laminated composite lens
AssigneeVicoh, LLC
InventorJerome A. Legerton
Life of this patent
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Abstract
The present invention is directed to a composite lens, comprising an anterior rigid gas permeable layer, and an annulus of soft material bonded to a posterior surface of the anterior rigid gas permeable layer, wherein a central zone of the composite lens is rigid and without a soft layer, wherein a peripheral zone of the composite lens is generally rigid in its anterior aspect and soft in its posterior aspect.
Claims16
A composite lens, comprising:
- a central zone and a peripheral zone;
- an anterior rigid layer;
- and
- an annulus of soft material bonded to a single posterior surface of the anterior rigid layer;
- wherein the central zone is rigid and without a posterior soft layer;
- wherein a peripheral aspect of the central zone is rigid in its anterior aspect and soft in its posterior aspect;
- and
- wherein the peripheral zone is soft and without an anterior rigid layer,
- wherein a radial width of the soft annulus is 250 microns to 5 mm, such that an edge of the composite lens is formed solely by the soft material transitioning anterior-ward to and extending substantially peripheral to the anterior rigid layer.
6 more elements
A composite lens, comprising:
- a central zone and a peripheral zone;
- an anterior rigid layer;
- and
- an annulus of soft material bonded to a posterior surface of the anterior rigid layer adapted to lift the anterior rigid layer above a cornea of a wearer of the composite lens;
- wherein the central zone is rigid and without a posterior soft layer;
- wherein a peripheral aspect of the central zone is rigid in its anterior aspect and soft in its posterior aspect;
- and
- wherein the peripheral zone is soft and without an anterior rigid layer.
5 more elements
Dependencies are inferred from the claim text.