Search International and National Patent Collections

1. (WO2011157836) LUMINAIRE, HEAT DISSIPATION STRUCTURE AND STREET LIGHTING DEVICE

Pub. No.:    WO/2011/157836    International Application No.:    PCT/EP2011/060161
Publication Date: Dec 22, 2011 International Filing Date: Jun 17, 2011
IPC: F21V 29/00
F21S 8/08
F21S 8/00
F21V 15/01
F21W 131/103
F21Y 101/02
F21W 111/02
Applicants: LEMNIS LIGHTING PATENT HOLDING B.V.
DE VISSER, Alexander Paul Johannus
Inventors: DE VISSER, Alexander Paul Johannus
Title: LUMINAIRE, HEAT DISSIPATION STRUCTURE AND STREET LIGHTING DEVICE
Abstract:
The invention relates to a luminaire including a housing and a light source. The light source includes one or more LEDs (6). The housing includes a heat conductive body (2) for accommodating the one or more LEDs, an upper surface having a plurality of first holes (12), a lower surface having a plurality of second holes (22), and a plurality of convection cooling ducts (14) connecting corresponding ones of the first and second holes. The convection cooling ducts are connected to the heat conductive body to form a heat conduction path from the one or more LEDs to the convection cooling ducts. Additionally, the convection cooling ducts are aligned substantially vertically when the luminaire is mounted for use, to form a cooling convection path through the ducts.