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:
Jun. 12, 2007
Filed:
Oct. 17, 2003
Stein Kuiper, Eindhoven, NL;
Bernardus Hendrikus Wilhelmus Hendriks, Eindhoven, NL;
Rudolph Maria Snoeren, Eindhoven, NL;
Willem Gerard Ophey, Eindhoven, NL;
Stein Kuiper, Eindhoven, NL;
Bernardus Hendrikus Wilhelmus Hendriks, Eindhoven, NL;
Rudolph Maria Snoeren, Eindhoven, NL;
Willem Gerard Ophey, Eindhoven, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
A zoom lens comprising, from the object side to the image side, a front lens group (), a controllable lens group, and a rear lens group (), the controllable lens group comprising a voltage-controlled electrowetting device, which device contains a first fluid (A) and a second fluid (B) having different refractive indices, with at least two first fluid-second fluid interfaces (). The curvatures, and thus the lens power, of these interfaces can be changed independently by supplying a voltage (V, V) to electrodes () of the device, so that no mechanical movement of lens elements is needed.