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. 02, 2025
Filed:
Oct. 10, 2023
Lockheed Martin Corporation, Bethesda, MD (US);
Virgil R. Watson, Trumbull, CT (US);
Christian David Gerhardt, Palm Beach Gardens, FL (US);
David B. Tabak, Hamden, CT (US);
Andrew J. Burke, Bridgeport, CT (US);
Anthony Dicocco, Stratford, CT (US);
William Grayson Richmond, Glen Allen, VA (US);
Thomas Lee Merrill, Clinton, CT (US);
Lockheed Martin Corporation, Bethesda, MD (US);
Abstract
A lighting device for foreign object debris (FOD) detection is included. The lighting device includes a light source configured to emit light onto a surface, and a diffuser coupled to the light source and configured to cause the emitted light to impinge the surface in at least a partially planar pattern, so as to create a darkfield lighting effect with respect to the surface. The lighting device further includes a cylindrical rod including a first end portion and a second end portion, in which the first end portion is configured to couple to the light source and the diffuser and the second end portion is configured to be manually held by a user of the portable lighting device.