Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Ophthalmic lenses or blanks
Patent
1984-08-10
1987-12-01
Arnold, Bruce Y.
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
Ophthalmic lenses or blanks
351160H, 604893, 604895, 623 6, G02B 106, G02C 704, A61F 216, A61K 922
Patent
active
047099968
ABSTRACT:
A device for forming a fluid lens when immersed in a liquid medium. The device includes a semipermeable transparent sheath defining a fully enclosed cavity and having a plurality of pores for permitting a liquid to flow into the cavity, and a hydrophilic polymer array disposed in the cavity, presenting a pressure differential across the sheath when the sheath is immersed in the liquid medium for causing liquid medium to flow into the cavity and to hydrate the array, causing the array to expand and to completely fill the cavity, thereby causing the sheath to expand and to assume a defined lenticular shape, wherein the hydrated array assumes a shape having an outer contour defined by the expanded sheath and constitutes a fluid lens.
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Arnold Bruce Y.
Sugarman Scott J.
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