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. 10, 2019
Filed:
Mar. 10, 2016
Signify Holding B.v., Eindhoven, NL;
Daiyu Hayashi, Eindhoven, NL;
Jianghong Yu, Eindhoven, NL;
Paul Dijkstra, Eindhoven, NL;
Michiel Van Der Meer, Eindhoven, NL;
Arie Jan Hovestad, Eindhoven, NL;
SIGNIFY HOLDING B.V., Eindhoven, NL;
Abstract
Methods and apparatus are provided for ultraviolet (UV) water purification, comprising UV-C LED modules having improved light extraction efficiency. UV-C LED dies () are solidly coupled to associated translucent output windows (), such that light is transmitted directly from light-emitting surface(s) of the dies () to output window(s) () of the LED package—without propagation across interstitial air gaps. Gas-to-solid (and solid-to-gas) light transition boundaries are thus eliminated, significantly reducing the amount of light lost through inter-medium boundary reflection, and thereby increasing efficiency of light extraction.