Koninklijke Philips Corporation N.v.

Philips Lighting Holding B.v.

Jan-Ivo Blankestijn

Michel Cornelis Josephus Marie Vissenberg

Bertrand Johan Edward Hontele

Peter Hubertus Franciscus Deurenberg

Robertus Leonardus Tousain

Merijn Keser

Huib Cooijmans

Bertrand Johan Edward HontelÉ

This invention relates to a method of controlling the light output of a solar-powered lighting device. The lighting device comprises a light source, a battery connected to the light source, a solar-power generator including a charger connected to the battery, and a control unit for performing the light output control. The method comprises: &#x2014;charging the battery while solar-power is generated; &#x2014;acquiring local day-light data; &#x2014;repeatedly: &#x2014;acquiring, at predetermined time intervals, local weather forecast data covering a predetermined time period, and determining a lighting output profile for the predetermined time period; and &#x2014;driving the lighting device according to the lighting output profile, wherein said determining a lighting output profile comprises: &#x2014;predicting a lighting demand for the predetermined time period on basis of first environment light data, which first environment light data comprises the local day-light data; &#x2014;predicting a battery capacity for the predetermined time period on basis of a present energy storage level and second environment light data, which second environment light data comprises the weather forecast data and the local day-light data; and &#x2014;determining the lighting output profile on basis of the lighting demand and the battery capacity under consideration of keeping the energy storage level above a predetermined minimum level during the predetermined time period.

Energy management control for solar-powered lighting devices

A connector () for connecting a component () to a heat sink (), wherein the connector () is formed as a female part of a bayonet coupling enclosing an opening () for receiving one of the component () and the heat sink (). Further, the connector () in use is arranged to ensure direct thermal contact between the component () and the heat sink () in the opening ().

Connector for connecting a component to a heat sink

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Best, Netherlands

Jan-Ivo Blankestijn