ADJUSTABLE CORRECTION FOR A VARIETY OF AMBIENT LIGHTING CONDITIONS
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United States of America Patent
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Issued Date -
Jan 15, 2009
app pub date -
Jun 9, 2008
filing date -
Jun 8, 2007
priority date (Note) -
Abandoned
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Abstract
A lens system is presented having a lens having an electro-active element, a sensor for sensing a change in ambient light, a controller in operative communication with the sensor, and a plurality of electrode rings electrically connected to the controller. The electrode rings may be concentric. The controller applies a voltage to the plurality of electrode rings when the sensor senses a change in ambient light. The application of voltage causes a change in the refractive index of the electro-active element for correcting a spherical aberration of the eye due to the sensed change in ambient light.
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