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:
Apr. 07, 2009
Filed:
Apr. 20, 2006
Christoph Dobrusskin, Eindhoven, NL;
Johannus W. Weekamp, Eindhoven, NL;
Bernardus H. W. Hendriks, Eindhoven, NL;
Christoph Dobrusskin, Eindhoven, NL;
Johannus W. Weekamp, Eindhoven, NL;
Bernardus H. W. Hendriks, Eindhoven, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
Optical apparatus for modifying a radiation beam, the apparatus including a variable focus lens () comprising a first fluid (A) and a second fluid (B) wherein the fluids are immiscible and are separated from each other by a fluid meniscus () which is configurable into a configuration which is arranged to modify a predetermined vergence of an input radiation beam () and a focus control system. The optical apparatus is characterised in that the apparatus comprises a first redirector arranged to redirect the radiation beam, after having passed once through the fluid meniscus, back towards the fluid meniscus, and a second redirector arranged to further redirect the radiation beam, after having passed twice through the meniscus, back towards the fluid meniscus, wherein the configuration is arranged to further modify the vergence of the radiation beam following each of the redirections, the further modifications being arranged to provide the variable focus lens with an amplified focal power.