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:
Aug. 05, 2008
Filed:
Apr. 22, 2005
Christina A. Renders, Eindhoven, NL;
Stein Kuiper, Vught, NL;
Bernardus H. W. Hendriks, Eindhoven, NL;
Ivon F. Helwegen, St. Odilienberg, NL;
Marco A. J. Van As, Waalre, NL;
Christina A. Renders, Eindhoven, NL;
Stein Kuiper, Vught, NL;
Bernardus H. W. Hendriks, Eindhoven, NL;
Ivon F. Helwegen, St. Odilienberg, NL;
Marco A. J. Van As, Waalre, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
The present invention discloses an optical device comprising a container enclosing an insulating liquid (A) and an electrically susceptible liquid (B), the insulating liquid (A) and the electrically susceptible liquid (B) being immiscible and being in contact with each other via an interface (), at least one of the liquids (A; B) being at least partially placed in a light path through the container. The optical device further comprises heating means () that preferably are responsive to a temperature sensor () for heating the insulating liquid (A) and the electrically susceptible liquid (B). Consequently, an optical device is obtained in which the influence of the temperature dependence of the physical properties of the insulating liquid (A) and the electrically susceptible liquid (B) on the behavior of the optical device is reduced, thus yielding an optical device with improved optical characteristics at low temperatures.