Back to results
US 2007/0177276 A1Published application
Optical electrowetting device
AssigneeVarioptic S.A.
InventorsGaetan Liogier D'ardhuy, Mathieu Maillard, Legrand Julien, Berge Bruno
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeVarioptic S.A.
InventorsGaetan Liogier D'ardhuy, Mathieu Maillard, Legrand Julien, Berge Bruno
Estimating the term…
The invention relates to an optical electrowetting device comprising a conductive fluid (5; 101) and a non-conductive fluid (4; 102), said fluids being non miscible, and an insulating substrate (2; 103) on which both fluids are in contact and form a triple interface, wherein the natural contact angle (105) of the non-conductive fluid (102) on the substrate (103) in presence of the conductive fluid (101) is comprised between 0° and about 20°. This device may be a variable focus liquid lens, an optical diaphragm, an optical zoom. The invention further relates to an apparatus such as a camera, a cell phone, an endoscope or a dental video camera, comprising said electrowetting device and a driver or electronic means for controlling the lens.
An optical electrowetting device comprising a conductive fluid (5;
An optical electrowetting device comprising a conductive fluid and a non-conductive fluid, said fluids being non miscible, and an insulating substrate on which both fluids are in contact and form a triple interface, wherein the insulating substrate comprises parylene F or AF-4 or parylene VT-4.
An optical electrowetting device comprising a conductive fluid and a non-conductive fluid, said fluids being non miscible, and an insulating substrate on which both fluids are in contact and form a triple interface, wherein the insulating substrate comprises an aromatic vinyl siloxane type polymer, preferably divinylsiloxane-benzocyclobutene (DVS-BCB) polymer.
An optical electrowetting device comprising a conductive fluid and a non-conductive fluid, said fluids being non miscible, and an insulating substrate on which both fluids are in contact and form a triple interface, wherein the insulating substrate comprises a perfluorinated polymer obtained by cyclopolymerisation of perfluoro(alkenyl vinyl ether).
Dependencies are inferred from the claim text.