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:
Jun. 30, 1998
Filed:
Oct. 25, 1996
Applicant:
Inventor:
Lavern Charles Clune, Huntsville, AL (US);
Assignee:
Lockheed Martin Corporation, Sunnyvale, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
359226 ; 359223 ; 359894 ;
Abstract
A wedge window changes the direction of radiation passing through the window to shorten the window required for unvignetted viewing. An orthogonal reflection pointing mirror reduces the window size that is required for unvignetted viewing through a window over a finite range of viewing angles. A wedge window is used in combination with an orthogonal reflection pointing mirror to reduce the window size that is required for unvignetted viewing over a finite range of viewing angles that includes large incidence angles.