Capacitively coupled electric field control device
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United States of America Patent
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Dec 1, 2015
Grant Date -
May 22, 2014
app pub date -
Nov 11, 2013
filing date -
Nov 11, 2012
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Abstract
An electrode structure is proposed for controlling a spatially non-uniform electric field driving a tunable liquid crystal lens or beam steering device. The spatially non-uniform electrode structure enables the generation of a predetermined spatially non-uniform electric field profile where complex capacitive coupling between multiple different electrically floating neighboring electrode segments is employed for the generation of the electrical field of desired form by supplying an initial electric potential to a limited number of electrodes.
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