Patent · US Active

LED-based luminaire having a mixing optic

US9249947B2 · kind B2 · utility

5Cited by

2References

22Claims

0Family size

Assignee

KONINIKLIJKE PHILIPS N.V. · NL

Inventors

Peter Goldstein · Medford, US
Eric Anthony Roth · Seoul, KR

Key dates

Filing date	Aug 27, 2012
Grant date	Feb 2, 2016
Priority date	—
Expiry date	Dec 27, 2032

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF21Y2115/10
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

Disclosed is an LED-based luminaire (10, 110, 210, 310, 410, 510, 610, 710) including an optic surrounding a plurality of LEDs (140, 240, 340, 440, 540, 640a/b, 740). The optic may include a plurality of interior reflective surfaces for mixing light output of the LEDs and also include a transmissive diffuser (30, 130, 230, 330, 430, 530, 630a/b, 730a/b) through which interiorly reflected light output of the LEDs exits the LED-based luminaire.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.