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. 10, 2019
Filed:
Jan. 31, 2018
President and Fellows of Harvard College, Cambridge, MA (US);
Mohammadreza Khorasaninejad, Belmont, MA (US);
Zhujun Shi, Cambridge, MA (US);
Alexander Y. Zhu, Cambridge, MA (US);
Wei Ting Chen, Medford, MA (US);
Vyshakh Sanjeev, Whitby, CA;
Federico Capasso, Cambridge, MA (US);
PRESIDENT AND FELLOWS OF HARVARD COLLEGE, Cambridge, MA (US);
Abstract
An optical device includes a substrate, a reflective layer disposed over the substrate, and a metalens disposed over the reflective layer. The metalens includes a plurality of nanopillars, the plurality of nanopillars together specifying a phase profile such that the metalens has a focal length that is substantially constant over a wavelength range of an incident light of about 490 nm to about 550 nm.