Patent ID: 8922901
Filing Date: 2014-12-30
Classification: G02B

Abstract:
1. A method of fabricating a liquid lens array, the method comprising: first, creating an array of through holes of axisymmetric cross-section through the thickness of a central plate having top and bottom surfaces; second, forming conductive traces on the side walls of each of the through holes in the central plate and on the top and bottom surfaces of the central plate, including a portion of the top surface contiguous with each of the through holes; third, bonding at least a portion of the bottom surface of the central plate surrounding each of the through holes to the top surface of a transparent base plate, to form an array of cavities of axisymmetric cross section corresponding to the array of through holes; fourth, forming a layer of an insulating material to coat the side walls of each of the axisymmetric cavities, the portions of the top surface of the base plate lying within each of the axisymmetric cavities, and portions of the top surface of the central plate surrounding each of the axisymmetric cavities; fifth, introducing a polar liquid and a non-polar liquid into each of the coated cavities; and sixth, bonding at least a portion of the top surface of the central plate around each of the liquid-containing cavities to the bottom surface of a transparent top plate.