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:
Feb. 10, 1981
Filed:
Mar. 07, 1979
David P Helm, Burke, VA (US);
William S Flogaus, Alexandria, VA (US);
The United States of America as represented by the Secreatry of the Army, Washington, DC (US);
Abstract
An objective with two lens elements has a first fully-reflective plane mir between the lens elements, and a second such mirror between the objective and a detector. The outermost lens element and the first mirror are carried in a housing rotatable with respect to another housing carrying the other lens elements and the second mirror. The other housing is rotatable about an axis between the second mirror and the detector. The system may thus do elevation scanning by rotating the first housing, and azimuth scanning by rotating the two housings about the mentioned axis. Image stabilization is accomplished by appropriately stabilizing one or both mirrors.