| Patent application number | Description | Published |
|---|
| 20080204891 | Method and Device For Controlling a Variable Focal Length Liquid Lens - The present invention concerns a method for controlling a variable focal length lens ( | 08-28-2008 |
| 20080316611 | DROP CENTERING DEVICE - A variable-focus lens that includes a wall made of an insulating material, a drop of an insulating liquid arranged on an area of a first surface of the wall, a conductive liquid covering the first surface and the drop, and an electrode arranged on a second surface of said wall. The insulating and conductive liquids are non-miscible, having different optical indexes and substantially the same density. The drop of the variable-focus lens is centered in a truncated cone centered on an axis perpendicular to the first surface, the bottom of which is pierced with a centered hole, and the insulating material wall is transparent and covers the hole. | 12-25-2008 |
| 20090021842 | METHOD OF MANUFACTURING AN ELECTROWETTING-BASED VARIABLE-FOCUS LENS - The present invention relates to a method of manufacturing an electrowetting-based variable-focus lens, comprising: (a) providing an enclosure having a cavity ( | 01-22-2009 |
| 20100020285 | OPTICAL LENS WITH VARIABLE FOCAL LENGTH - The invention concerns an optical lens comprising a cavity formed by two transparent windows and a peripheral frame positioned in between, said cavity containing first and second liquids, non miscible, forming an interface, said interface being movable by electrowetting on a wall of said peripheral frame by application of a voltage between first and second electrodes, wherein said wall has a non symmetrical revolution surface, the geometrical shape of which is calculated such that said interface is of a predetermined shape, for example substantially spherical, for at least one value of said voltage. | 01-28-2010 |
| 20100040355 | CALIBRATION METHODS FOR IMAGING SYSTEMS AND IMAGING SYSTEMS USING SUCH - A method for calibration in the field of imaging systems and imaging systems using the method for calibration. In particular, the method involves calibration in the field of open loop variable focus imaging systems and methods for calibration in the field of imaging system having a variable optical parameter. | 02-18-2010 |
| 20100149651 | VARIABLE-FOCUS LENS ASSEMBLY - The present invention relates to an electrowetting-based variable-focus lens comprising an enclosure with at least two components, an arrangement of first and second immiscible liquids ( | 06-17-2010 |
| 20100177386 | ELECTROWETTING DEVICE WITH POLYMER ELECTRODE - The invention concerns an electrowetting optical device comprising a chamber ( | 07-15-2010 |
| 20100295987 | IMAGE STABILIZATION CIRCUITRY FOR LIQUID LENS - A method of controlling a liquid lens in an imaging device, the liquid lens including a liquid-liquid interface between first and second immiscible liquids deformable by electrowetting; a chamber containing the first and second liquids, the first liquid being an insulating liquid and the second liquid being a conducting liquid; and a first electrode in contact with the second liquid and at least one second electrode insulated from the second liquid by an insulating layer, the first and second electrodes being arranged to allow a plurality of voltages levels to be applied between the first and second electrodes to control the curvature of the liquid-liquid interface, the method including: determining motion data representative of a movement of the imaging device; determining focusing data representative of a desired focus of the imaging device; determining the plurality of voltage levels to be applied between the first and second electrodes, wherein each of the voltage levels is a function of the motion data, the focusing data and at least one parameter relating to the liquid lens and preliminary determined in a calibration phase. | 11-25-2010 |
