Koninklijke Philips Corporation N.v.

Philips Lighting Holding B.v.

Franciscus Laurentius Van Boekhout

Marek Zbigniew Szczerba

According to an aspect of the invention, a method of controlling a lighting device is provided. The method comprises receiving an input from a dimmer, the input being representative of a desired light output level for the lighting device. A control voltage for operating a driver unit comprised in the lighting device is computed based on the input and a calibrated relationship between power consumption and control voltage for the lighting device.

Method of controlling a lighting device

A lighting control system () comprises: a communication bus (); at least one extension movement detector () issuing detection pulses (DOS) over said communication bus in response to detecting a movement, at first time intervals (T) determined by a sensor timer (); one master luminaire () comprising a lamp () and a master controller () issuing master command signals (MCS) over said bus in response to detection pulses (DOS) received over said bus; and at least one slave luminaire () comprising a lamp () and a slave controller () being responsive to the master control signals (MCS) received over said bus to switch the corresponding lamp ON and OFF. Whenever the master controller receives a detection pulse, it starts a master timer () and switches the lamps ON. If the master timer times out (T) without the master controller receiving any detection pulses, the master controller switches the lamps OFF.

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Eindhoven, Netherlands

Franciscus Laurentius Van Boekhout