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:
Dec. 22, 2020
Filed:
Nov. 21, 2018
Osram Opto Semiconductors Gmbh, Regensburg, DE;
Zhengbo Yu, Shrewsbury, MA (US);
Hiroaki Miyagawa, Andover, MA (US);
OSRAM OPTO SEMICONDUCTORS GMBH, Regensburg, DE;
Abstract
A ceramic wavelength converter assembly has a layered structure. The ceramic wavelength converter assembly includes two first layers having an undoped host material, or a doped host material, two second layers having a barrier material and being disposed between the two first layers and a third layer having an undoped host material, or a doped host material and being disposed between the two second layers. The two first layers include the undoped host material and the third layer includes the doped host material, or the two first layers include the doped host material and the third layer includes the undoped host material.