FIELD: physics.
SUBSTANCE: ophthalmic lens with a variable focal length comprises a front and a rear curved optical portions, a cavity formed by the curved lower surface of the front portion and the curved upper surface of the rear portion; the first and the second immiscible fluids; electrodes adapted to generate an electric field; a dielectric film contacting with the first and/or the second fluid and covering the electrodes; and a container for holding the fluid volume equal to or almost equal to the first fluid volume connected to the cavity by the channels. When the first fluid fills the cavity, the second fluid fills the container.
EFFECT: providing the vision modification or improving the user's eye physiology.
19 cl, 15 dwg
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