METHOD AND APPARATUS FOR OPHTHALMIC DEVICES INCLUDING GRADIENT-INDEXED AND SHAPED LIQUID CRYSTAL LAYERS
摘要
This invention discloses methods and apparatus for providing a variable optic insert into an ophthalmic lens. The variable optic insert may have surfaces within that have differing radii of curvature. A liquid crystal layer may be used to provide a variable optic function and in some embodiments, an alignment layer for the liquid crystal layer may be patterned in a radially dependent maimer. The patterning may allow for the index of refraction of the optic device to vary in a gradient-indexed or GRIN manner. 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 optical characteristics.
申请公布号
CA2863696(A1)
申请公布日期
2015.03.17
申请号
CA20142863696
申请日期
2014.09.16
申请人
JOHNSON & JOHNSON VISION CARE, INC.
发明人
PUGH, RANDALL BRAXTON;FLITSCH, FREDERICK A.;RIALL, JAMES DANIEL;PANDOJIRAO-S, PRAVEEN;TONER, ADAM;TABIRIAN, NELSON V.;SERAK, SVETLANA;USKOVA, OLENA;DE SIO, LUCIANO