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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.:

US 11719926 B1

PDFFull Text
Date of Patent:
Aug. 08, 2023

Filed:

Jul. 01, 2021

Modulating retroreflective piezoelectric multilayer film

Applicant:

Andrew Simon Filo, Cupertino, CA (US);

Inventor:

Andrew Simon Filo, Cupertino, CA (US);

Assignee:

Other;

Attorney:

Cozen O'Connor

Primary Examiner:

James C Jones

Int. Cl.
CPC ...
G02B 26/02 (2006.01); G01S 17/74 (2006.01); H10N 30/20 (2023.01); H10N 30/857 (2023.01); H10N 30/87 (2023.01); H10N 39/00 (2023.01); H01L 31/053 (2014.01); G09F 3/02 (2006.01); G09F 3/10 (2006.01); B64G 1/10 (2006.01); B64G 1/66 (2006.01);
U.S. Cl.
CPC ...
G02B 26/02 (2013.01); G01S 17/74 (2013.01); G09F 3/02 (2013.01); G09F 3/10 (2013.01); H01L 31/053 (2014.12); H10N 30/204 (2023.02); H10N 30/857 (2023.02); H10N 30/878 (2023.02); H10N 39/00 (2023.02); B64G 1/1085 (2013.01); B64G 1/66 (2013.01); G09F 2003/0257 (2013.01);
Abstract

Provided herein is a modulating retroreflective multilayer film comprising retroreflective elements, a piezoelectric layer, a photovoltaic layer, and an energy storage device. The stacked and transparent layered configuration of the film allows the retroreflective elements and the photovoltaic layer to be simultaneously illuminated by a narrow beam. The low power piezoelectric layer and the energy harvesting of the photovoltaic layer allow the retroreflector to be energetically self-sufficient and suitable for remote deployment. The flexible properties of the component layers allow the retroreflector to be adhered to nonplanar or irregular surfaces for the purpose of labeling and tagging.

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