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. 28, 2021
Filed:
Jan. 20, 2020
Michael Manuel Fitelson, Columbia, MD (US);
Yanhua Shih, Ellicott City, MD (US);
Jane Noble Sprigg, Cantonsville, MD (US);
Michael Manuel Fitelson, Columbia, MD (US);
Yanhua Shih, Ellicott City, MD (US);
Jane Noble Sprigg, Cantonsville, MD (US);
NORTHROP GRUMMAN SYSTEMS CORPORATION, Falls Church, VA (US);
Abstract
A system for projecting an image of an object on an image plane can include a beam splitter that outputs a first image beam and a second image beam in response to an input image beam, wherein the input image beam comprises an image of an object. The system can also include a Fourier transform lens to transform the second image beam into a Fourier image beam. The system can further include a bucket detector that is aligned in a light path of the Fourier image beam. The bucket detector asserts a control signal in response to detecting a threshold number of photons with an elevated probability of having a high spatial frequency within a timeframe and to de-assert the control signal in response to detecting less than the threshold number of photons with an elevated probability of having a high spatial frequency within the timeframe.