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. 01, 2005
Filed:
Jul. 18, 2003
Ellis I. Betensky, Halifax, CA;
James Brian Caldwell, Hallandale Beach, FL (US);
Iain A. Neil, Calabasas, CA (US);
Takanori Yamanashi, Woodland Hills, CA (US);
Ellis I. Betensky, Halifax, CA;
James Brian Caldwell, Hallandale Beach, FL (US);
Iain A. Neil, Calabasas, CA (US);
Takanori Yamanashi, Woodland Hills, CA (US);
Panavision Inc., Woodland Hills, CA (US);
Abstract
A zoom lens system is disclosed. The zoom lens system forms a final image of an object and a first intermediate real image between the object and the final image. The zoom lens system includes a first optical unit located between the object and the first intermediate real image. The first optical unit comprises at least one optical subunit which is moved to change the size (magnification) of the first intermediate real image. The zoom lens system also includes a second optical unit located between the first intermediate real image and the final image, at least a portion of which is moved to change the size (magnification) of the final image. The zoom lens system provides a wide zoom range of focal lengths with continuous zooming between the focal lengths and optional image stabilization.