Patent ID: 9333904
Filing Date: 2016-05-10
CPC Classification: B60Q,F21S

Claim Text:
1. An illumination device for providing controllable illumination, said illumination device comprising: a light-source unit comprising a plurality of individually controllable solid state light-sources; an optical element arranged to modulate light from said solid state light-sources through a modulation area of said optical element; an actuator connected to the light-source unit and controllable to move said light-source unit relative to said optical element in such a way that said solid state light-sources pass through said modulation area of the optical element in succession; and a control unit configured to drive each of said solid state light-sources with a sequence of drive parameter values corresponding to an illumination configuration from when said solid state light-source enters said modulation area of the optical element until said solid state light-source leaves said modulation area of the optical element so said solid state light-source emits light with a time-varying intensity, said sequence of drive parameter values including at least three different drive parameter values.