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:
Nov. 10, 2009
Filed:
Apr. 03, 2007
Rongguang Liang, Penfield, NY (US);
Xiang-dong MI, Rochester, NY (US);
David Kessler, Rochester, NY (US);
Rongguang Liang, Penfield, NY (US);
Xiang-Dong Mi, Rochester, NY (US);
David Kessler, Rochester, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A camera apparatus () has a zoom lens () having a zoom focus setting that is adjustable over a range of focus values and control circuitry for generating a variable voltage potential according to the zoom focus setting. A flash illumination apparatus () has a light source () and a variable focus liquid crystal lens (), the variable focus liquid crystal lens () having a first and a second solid optical element (), chamber (), the two electrodes () and liquid crystal material (). A variable voltage is applied to the liquid crystal material () for the lens power according to the zoom focus setting.