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:
Mar. 24, 2009
Filed:
Sep. 12, 2003
Bokke Johannes Feenstra, Eindhoven, NL;
Robert Andrew Hayes, Eindhoven, NL;
Rudolph Maria Snoeren, Eindhoven, NL;
Stein Kuiper, Eindhoven, NL;
Bernardus Hendrikus Wilhelmus Hendriks, Eindhoven, NL;
Anton Petrus Maria Van Arendonk, Eindhoven, NL;
Bokke Johannes Feenstra, Eindhoven, NL;
Robert Andrew Hayes, Eindhoven, NL;
Rudolph Maria Snoeren, Eindhoven, NL;
Stein Kuiper, Eindhoven, NL;
Bernardus Hendrikus Wilhelmus Hendriks, Eindhoven, NL;
Anton Petrus Maria Van Arendonk, Eindhoven, NL;
Abstract
A switchable optical element has a fluid chamber including immiscible first and second bodies of fluid disposed relative to one another along an optical axis of the element. The second body of fluid is movable in a direction away from the optical axis (A) by electro-wetting action, giving the switchable optical element a changeable transmissivity along the optical axis.