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:
Sep. 04, 2007
Filed:
Aug. 22, 2005
William T. Goosey, Jr., Fairport, NY (US);
John N. Border, Walworth, NY (US);
David W. Sandford, Rochester, NY (US);
William T. Goosey, Jr., Fairport, NY (US);
John N. Border, Walworth, NY (US);
David W. Sandford, Rochester, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A multiple group variable focal length lens is provided. The lens has a first lens group including a variable power lens element and is positioned in a stationary manner along an optical axis. The lens also has a second lens group moveably positioned along the optical axis. The variable power lens element can be an electrically controllable liquid lens having a surface with a variable radius of curvature created by two liquids having distinct indices of refraction with one of the liquids having an index of refraction greater than 1.60. Alternatively or additionally, at least one of the liquids used in the liquid lens can include nanoscale particles.