Title:
LIGHTING DEVICE, AND LIGHTING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2013/032326
Kind Code:
A3
Abstract:
A lighting device (100) has a support structure having lighting elements (422) arranged thereon. The support structure has an internal cooling duct having a duct wall. At least a part of duct wall is in thermal contact with the lighting elements. The cooling duct is configured to allow a natural air flow absorbing heat generated by the lighting elements from the duct wall. The cooling duct extends through the support structure from a first opening having a first cross-sectional area to a second opening having a second cross-sectional area. The cooling duct contains a filler body (412) having a substantially bi-conical shape. The filler body and the duct wall form a cooling duct portion with a third cross-sectional area greater than the first cross-sectional area and/or the second cross-sectional area. The lighting device is part of a lighting system. The system comprises a control unit (700) coupled to the lighting device. The control unit is configured to receive control data and to cause the lighting device to operate based on the control data. The system further comprises a user device (710) configured to generate input to an application program configured to generate the control data based on the input, and to transmit the control data to the control unit.
Inventors:
PAS KOBBE OLAF (NL)
Application Number:
PCT/NL2012/050590
Publication Date:
April 25, 2013
Filing Date:
August 29, 2012
Export Citation:
Assignee:
NOBEL GROEP B V (NL)
PAS KOBBE OLAF (NL)
PAS KOBBE OLAF (NL)
International Classes:
F21V29/00; F21Y101/02
Foreign References:
| US20090073688A1 | 2009-03-19 | |||
| EP2236917A1 | 2010-10-06 |
Attorney, Agent or Firm:
MERTENS, H.V. (GE Rijswijk, NL)
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