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:
Dec. 08, 2015
Filed:
Feb. 25, 2015
Bae Systems Information & Electronic Systems Integration Inc., Nashua, NH (US);
Philip R. Staver, Wilton, NH (US);
BAE Systems Information and Electronic Systems Integration Inc., Nashua, NH (US);
Abstract
An optical lens system for focusing light on a focal plane for detection by a detector device. The optical lens system comprises a series of optical materials including first and last optical materials with a plurality of other optical materials located therebetween. A housing accommodates the series of optical materials, and each of the optical materials is spaced a desired distance from one another. An external entrance pupil supplies infrared light to the series of optical materials of the optical lens system, and the entrance pupil is located in front of the first optical material. A Dewar window and a filter are located between the last optical material and the focal plane. The optical materials are selected and arranged to focus simultaneously both mid-wave infrared light and long-wave infrared light on the focal plane over a wide temperature range.