Patent · US Active

LED lamp module

US7686486B2 · kind B2 · utility

19Cited by

13References

3Claims

0Family size

Assignee

OSRAM SYLVANIA Inc. · US

Inventors

Thomas Tessnow · Weare, US
Mike Tucker · Concord, US
Vipin Madhani · Burlington, US
Peter Frey · Heidenheim, DE

Key dates

Filing date	Jan 30, 2008
Grant date	Mar 30, 2010
Priority date	—
Expiry date	Jan 30, 2028

Classification

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

Abstract

An LED lamp (10) has a housing (12) with an interior wall (14) defining a cavity (16). An LED light source (26) is positioned in the cavity (16) and project light in a forward direction. A reflector (28) having a reflective surface (30), a forward opening (32) and a rear opening (34) surrounds the light source (26) and a complex lens (38) closes the forward opening. The lens (38) comprises a first optical refractive element (40) arranged around a peripheral edge (42) and a second optical refractive element (44) centrally located on the lens (38); the first optical refractive element (40) including a plurality of flute lenses (40a) and the second optical refractive element (44) comprising a concavo-convex lens (44a).

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