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:
Oct. 26, 2021
Filed:
Jul. 13, 2014
President and Fellows of Harvard College, Cambridge, MA (US);
Joanna Aizenberg, Boston, MA (US);
Nicolas Vogel, Erlangen, DE;
Ian Burgess, Toronto, CA;
Mathias Kolle, Somerville, MA (US);
Tanya Shirman, Arlington, MA (US);
Stefanie Utech, Erlangen, DE;
Katherine Phillips, Cambridge, MA (US);
David A. Weitz, Bolton, MA (US);
Natalie Koay, Somerville, MA (US);
President and Fellows of Harvard College, Cambridge, MA (US);
Abstract
A structurally colored pigment is described that contains a plurality of photonic crystal particles dispersed in a medium, where each photonic crystal particles contains a plurality of spectrally selective absorbing components dispersed within the photonic crystal particle. In certain embodiments, each photonic crystal particle has a predetermined minimum number of repeat units of the photonic crystal structure. The structurally colored material provides improved reflectance, long-term stability, and control of the desired optical effects. The fabrication techniques described herein also provide high throughput and high yield allowing use in wide ranging applications from cosmetics, paints, signs, sensors, to packaging material.