Patent · US Active

Heat sink and lighting device comprising a heat sink

US8322892B2 · kind B2 · utility

65Cited by

8References

15Claims

0Family size

Assignee

OSRAM GmbH · DE

Inventors

Alessandro Scordino · Dolo, IT
Nicole Breidenassel · Bad Abbach, DE
Giovanni Scilla · Regensburg, DE

Key dates

Filing date	Dec 7, 2007
Grant date	Dec 4, 2012
Priority date	—
Expiry date	Dec 3, 2028

Classification

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

Abstract

A heat sink is provided. The heat sink may include an open cavity formed by a cavity wall, a cavity bottom wall thereof including a light source region adapted to have a light source mounted thereon and a lateral cavity wall thereof including a reflection region adapted to reflect light emitted from the light source; a heat spreading and dissipation structure covering at least part of an exterior of the heat sink including a bottom region and a lateral region, the heat spreading and dissipation structure including a plurality of vertically aligned fins; an air guidance structure adapted to separate the heat sink from an air flow generator; and at least one mounting column for attaching the heat sink to a lighting device.

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