| abstract |
The invention provides a lighting device ( 100 ) comprising a first set of light emitting diodes ( 10 ) arranged to emit light ( 14 ) in a first wavelength range of 300 nm-490 nm, a second set of light emitting diodes ( 11 ) arranged to emit light ( 15 ) in a second wavelength range of 300 nm-490 nm, a first luminescent element ( 12 ) radiationally coupled to the first and second set of light emitting diodes and arranged to convert at least a part of the light of the first wavelength range and at least a part of the light of the second wavelength range into first luminescent element light, a second luminescent element ( 13 ) radiationally coupled to at least a subset of the second set of light emitting diodes and arranged to convert at least a part of the light ( 15 ) of the second wavelength range into second luminescent element light, wherein, during operation, the brightness level of the light ( 14 ) emitted by the first set of light emitting diodes ( 10 ) and the brightness level of the light ( 15 ) emitted by the second set of light emitting diodes ( 11 ), respectively, is controllable independently of each other and wherein the lighting device is arranged to generate white lighting device light ( 101 ). |