The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 07, 2010
Filed:
Jan. 31, 2007
Gaëtan Liogier D'ardhuy, Lyons, FR;
Mathieu Maillard, Lyons, FR;
Julien Legrand, Lyons, FR;
Bruno Berge, Lyons, FR;
Gaëtan Liogier D'ardhuy, Lyons, FR;
Mathieu Maillard, Lyons, FR;
Julien Legrand, Lyons, FR;
Bruno Berge, Lyons, FR;
Varioptic, Lyons, FR;
Abstract
The invention relates to 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 natural contact angle () of the non-conductive fluid () on the substrate () in presence of the conductive fluid () 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.