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:
Apr. 05, 2022
Filed:
Nov. 05, 2018
Osram Opto Semiconductors Gmbh, Regensburg, DE;
Trustees of Boston University, Boston, MA (US);
Luca Dal Negro, Brookline, MA (US);
Alan Lenef, Belmont, MA (US);
Madis Raukas, Lexington, MA (US);
Sean Gorsky, Waltham, MA (US);
Ran Zhang, Allston, MA (US);
OSRAM Opto Semiconductors GmbH, Regensburg, DE;
Trustees of Boston University, Boston, MA (US);
Abstract
Disclosed herein are a number of dielectric pillars, arranged to form a close-packed aperiodic array, such as a Vogel spiral, where the geometries of the aperiodic array produce azimuthally isotropic scattering of luminescence within a restricted angular cone of extraction. The aperiodic array can be formed, attached or placed on a converting material, such as, phosphor, to restrict emission to within the angular cone of extraction. The phosphor could be part of a converting illumination device, such as a phosphor coated light emitting diode, or a laser activated remote phosphor converting device.