METHOD OF CONTROLLING THE COLOUR OF THE LIGHT OUTPUT OF A LAMP
The invention describes a method of controlling the colour of the light output of a lamp (1), which method comprises electronically collecting colour data pertaining to a first colour (C<SUB>1</SUB>) to obtain a first colour description (D<SUB>1</SUB>), electronically collecting colour data pertaining to a second colour (C<SUB>2</SUB>) to obtain a second colour description (D<SUB>2</SUB>), and combining the first colour description (D<SUB>1</SUB>) with the second colour description (D<SUB>2</SUB>) to obtain a target colour description (D<SUB>t</SUB>). The target colour description (D<SUB>T</SUB>) is transferred to a control unit (4) of the lamp (1), and the lamp (1) is driven according to the target colour description (D<SUB>t</SUB>) to give a target colour light output. The invention also relates to a system (3) for controlling the colour of the light output of a lamp. Furthermore, the invention relates to a colour data collection device (2) for use in a system (3) for controlling the colour of the light output of a lamp (1), which colour data collection device (2) comprises a colour detector (20) for electronically converting captured light (L<SUB>r</SUB>, L<SUB>sp</SUB>) into colour data pertaining to a colour (C<SUB>1</SUB>, C<SUB>2</SUB>), a conversion unit (21) for translating the colour data pertaining to a colour (C<SUB>1</SUB>, C<SUB>2</SUB>) into a corresponding colour description (D<SUB>1</SUB>, D<SUB>2</SUB>), a combining unit (22) for combining a first colour description (D<SUB>1</SUB>) with a second colour description (D<SUB>2</SUB>) to obtain a target colour description (D<SUB>t</SUB>), and a transfer interface (23) for transferring the target colour description (D<SUB>t</SUB>) to a control unit (4) of the lamp (1).