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. 09, 2020
Filed:
Oct. 10, 2016
Applicant:
Christopher B. Svec, Palatine, IL (US);
Inventor:
Christopher B. Svec, Palatine, IL (US);
Assignee:
NORTHROP GRUMMAN SYSTEMS CORPORATION, Falls Church, VA (US);
Primary Examiner:
Int. Cl.
CPC ...
G02B 17/08 (2006.01); G02B 1/10 (2015.01);
U.S. Cl.
CPC ...
G02B 17/0896 (2013.01); G02B 17/086 (2013.01); G02B 17/0808 (2013.01); G02B 1/10 (2013.01);
Abstract
A compact, uniaxially-aligned series of lenses are shaped and coated to allow coaxial viewing of two different fields of view on the same focal-plane array by selecting a type of light. The selection can be, for example, by spectrum or polarization. Zonal coatings on the lens surfaces permit for a catadioptric narrow field-of-view light path. The lens assembly accomplishes simultaneous dual field-of-view in a durable package without respective motion of optical elements, without substantial gaps between the lenses, and at lower cost than other assemblies.