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:
Sep. 01, 2015
Filed:
Jun. 10, 2011
Joanna Aizenberg, Boston, MA (US);
Philseok Kim, Arlington, MA (US);
Jack Alvarenga, Quincy, MA (US);
Joanna Aizenberg, Boston, MA (US);
Philseok Kim, Arlington, MA (US);
Jack Alvarenga, Quincy, MA (US);
President and Fellows of Harvard College, Cambridge, MA (US);
Abstract
A substrate having a second material on a surface of the substrate or embedded as a layer within the substrate are described. The second material has a different index of refraction and/or stiffness than the substrate so that stretching and unstretching of the substrate and the second material can induce wrinkles in the second material that interacts with light thereby allowing reversible change from a transparent state to an opaque or iridescent state, and vice versa. The present disclosure is useful as a shading system and/or displays.