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, 2020
Filed:
May. 14, 2019
Facebook Technologies, Llc, Menlo Park, CA (US);
Matthew Christopher Appleby, Palo Alto, CA (US);
Dong Yang, Milpitas, CA (US);
Fei Liu, San Jose, CA (US);
Facebook Technologies, LLC, Menlo Park, CA (US);
Abstract
An optical device includes an optical element. The optical element includes a first surface configured to receive light in a first direction and a second surface that is non-parallel to the first surface. The second surface is configured to transmit a first portion of the light in a second direction that is different from the first direction and internally reflect a second portion of the light that is distinct from the first portion of the light. The optical element further includes a third surface configured to receive the second portion of the light from the second surface and reduce internal reflection of the second portion of the light by the third surface. Also disclosed is a method of steering light by the optical device.