Kao, Yung-Yuan A new low-voltage-driven GRIN liquid crystal lens with multiple ring electrodes in unequal widths. [electronic resource] - Optics express Aug 2010 - 18506-18 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 1094-4087 Standard No.: 10.1364/OE.18.018506 doi