Dynamic multifocal contact lens dual layer with core

A dynamic multiple focus contact lens, comprising:

• two layers of soft contact lens material suitable for application upon a human cornea, each layer having a generally round shape with a perimeter, a front surface, an opposite rear surface, an outer edge spanning from said front surface to said rear surface upon said perimeter, a pupil, said layers being transparent, and said layers having a tapering upon said front surface outwardly from said pupil, said layers including a first layer and a coaxial second layer;
• a first annular electromagnet embedded within said first layer proximate said front surface and a power receiver in communication with said first electromagnet;
• a second annular electromagnet embedded within said second layer proximate said rear surface and a power receiver in communication with said second electromagnet;
• a liquid core between said first layer and said second layer;
• a radio transmitter capable of signaling said power receivers;
• said rear surface of said second layer being adapted to fit upon a portion of a human cornea for vision improvement and said front surface of said first layer being adapted to locate outwardly from a human cornea;
• wherein said layers provide a first shape to said lens having a first optical characteristic for distance vision correction and a gap spaces apart said first annular electromagnet from said second annular electromagnet in a disengaged position of said lens and wherein each of said power receivers supply maintenance current to said electromagnets;
• wherein upon activation of said transmitter, each of said power receivers energizes and polarizes each of said electromagnets providing a second shape to said front surface of said first layer having a second optical characteristic for near vision correction from about +0 diopter to about +3.0 diopters and said first annular electromagnet attracts to said second annular electromagnet wherein a portion of said front surface of said front layer and said liquid core swells outwardly from said rear surface of said second layer in an engaged position of said lens;
• wherein following activation of said transmitter and mutual attraction of said annular electromagnets, each of said power receivers delivers a maintenance current of lesser magnitude than an initial current to each of said annular electromagnets and maintaining said annular electromagnets in apposition;
• wherein upon inactivation of said transmitter, said first annular electromagnet separates from said annular second electromagnet and said first layer and said liquid core return said lens to the disengaged position;
• said front surface and said rear surface of said first layer and said front surface and said rear surface of said second layer having a generally tapered shape proximate said perimeter of said lens adapted to fit comfortably upon a human cornea;
• and,
• said first layer being either hydrogel or silicone-hydrogel and said second layer being either hydrogel or silicone-hydrogel.

A dynamic multiple focus contact lens, comprising:

• two layers of contact lens material suitable for application upon a human cornea, each layer having a generally round shape with a perimeter, a front surface, an opposite rear surface, an outer edge spanning from said front surface to said rear surface upon said perimeter, and a pupil, said layers being transparent and coaxial, said layers in combination having a tapering upon said front surface outwardly from said pupil, and said layers including a first layer and a second layer;
• an annular electromagnet embedded within said first layer proximate said front surface and a power receiver in communication with said first electromagnet;
• an annular ring of ferrous material embedded within said second layer proximate said rear surface;
• a liquid core positioned between said first layer and said second layer;
• a radio transmitter capable of signaling said power receiver;
• said rear surface of said second layer being adapted to fit upon a portion of a human cornea for vision improvement and said front surface of said first layer being adapted to locate outwardly from a human cornea;
• wherein said layers provide a first shape to said lens having a first optical characteristic for distance vision correction and a gap separates said electromagnet from said ferrous ring in a disengaged position of said lens;
• wherein upon activation of said transmitter, said power receiver energizes and polarizes said electromagnet providing a second shape to said front surface of said first layer having a second optical characteristic for near vision correction from about +0 diopter to about +3.0 diopters and said electromagnet attracts to said ferrous ring wherein a portion of said front surface of said first layer and said liquid core swells outwardly from said rear surface of said second layer in an engaged position of said lens;
• wherein following activation of said transmitter and mutual attraction of said electromagnet and said ferrous ring, said power receiver delivers a maintenance current of lesser magnitude than the initial current to said electromagnet thus maintaining said electromagnet in apposition to said ferrous ring;
• wherein upon inactivation of said transmitter, said electromagnet separates from said ferrous ring and said layers return said lens to the disengaged position;
• said front surface of said first layer and said rear surface of said second layer having a generally tapered shape proximate said perimeter of said lens adapted to fit comfortably upon a human cornea;
• said first layer being either hydrogel or silicone-hydrogel and said second layer being either hydrogel or silicone-hydrogel;
• and,
• said power receiver including one of a loop antenna for resonant inductive coupling, a loop antenna for resonant transfer, and a photovoltaic cell upon said layer in communication with said electromagnets.