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:
Aug. 24, 2021
Filed:
Dec. 10, 2014
Facebook Technologies, Llc, Menlo Park, CA (US);
Christopher Percival, Cork, IE;
Vincent Brennan, Cork, IE;
Facebook Technologies, LLC, Menlo Park, CA (US);
Abstract
Methods and apparatus () for profiling a beam of a light emitting semiconductor device. The apparatus comprises a light emitting semiconductor device () comprising an active region () formed on a substrate () and configured to generate light when a suitable electrical current is applied to contacts on an upper surface of the device and a light emitting surface () defined by a lower surface of the substrate opposite the contacts. The apparatus further comprises a transmission medium () comprising a first surface () in contact with at least part of the light emitting surface of the semiconductor device and a diffusion surface (), opposite the first surface, and configured to diffuse light emitted from the micro-LED and transmitted through the transmission medium.