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:
Feb. 04, 2025
Filed:
Jan. 20, 2023
Applicant:
U.s. Army Devcom, Army Research Laboratory, Adelphi, MD (US);
Inventors:
Sang-Yen Cho, Columbia, MD (US);
Weimin Zhou, Rockville, MD (US);
Assignee:
The United States of America as represented by the Secretary of the Army, Washington, DC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/19 (2019.01); H04B 10/11 (2013.01);
U.S. Cl.
CPC ...
G02F 1/19 (2013.01); H04B 10/11 (2013.01); G02F 2202/30 (2013.01); G02F 2203/15 (2013.01);
Abstract
An optoelectronic device apparatus using active, frequency-selective metasurfaces to achieve retroreflection at a pre-determined single frequency and optionally provide signal modulation on the reflected light beam. The apparatus may use several active, frequency-selective metasurfaces to replace traditional optical lens and mirrors.