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:
May. 12, 2009
Filed:
Aug. 23, 2007
Mark a Lundgren, Fullerton, CA (US);
Mark A Lundgren, Fullerton, CA (US);
The Boeing Company, Chicago, IL (US);
Abstract
A dual field of view lens system comprising a first lens group aligned along an optical axis and a third lens group aligned along the optical axis and positioned a predetermined distanced from the first lens group. A second lens group, having an optical stop attached thereto, is aligned along the optical axis and disposed between the first and third lens groups such that the second lens group and the optical stop are moveable along the optical axis between a first position and a second position. Positioning the second lens group and the optical stop in the first position provides a wide field of view and moving the second lens group and the optical stop to a second position provides a narrow field of view.