Patent · US Active

LED downlight retaining ring

US8602601B2 · kind B2 · utility

107Cited by

2References

20Claims

0Family size

Assignee

KONINIKLIJKE PHILIPS N.V. · NL

Inventors

Mohamed Aslam Khazi · Bloomfield Hills, US
Kenneth Czech · North Dartmouth, US
Peter Franck · Seekonk, US
Alejandro Mier-Langner · LaSalle, CA

Key dates

Filing date	Feb 10, 2010
Grant date	Dec 10, 2013
Priority date	—
Expiry date	Oct 10, 2031

Classification

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

Abstract

An LED downlight comprises a primary reflector having an upper end and an open lower end, an LED printed circuit board assembly disposed in the upper end of the reflector, an optical assembly positioned beneath the LED printed circuit board assembly, a secondary reflective ring positioned beneath the LED printed circuit board assembly and within the primary reflector housing, the secondary reflector ring supporting the optical assembly and improving light distribution.

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