Abstract: Backlighting device for a screen for a television, mobile phone or the like, which includes a first light source adapted to emit light having a peak wavelength between 600 and 630 nm; a second light source adapted to emit light having a peak wavelength between 510 and 530 nm; a third light source adapted to emit light having a peak wavelength between 440 and 460 nm; and the light emitted by one of the light sources has a bandwidth of less than 15 nm, preferably less than 10 nm, more preferably less than 5 nm.

Abstract: Backlighting device for a screen for a television, mobile phone or the like, wherein the backlighting device comprises: a first light source adapted to emit light having a peak wavelength between 600 and 630 nm; a second light source adapted to emit light having a peak wavelength between 510 and 530 nm; a third light source adapted to emit light having a peak wavelength between 440 and 460 nm; wherein the light emitted by one of the light sources has a bandwidth of less than 15 nm, preferably less than 10 nm, more preferably less than 5 nm.

Abstract: A lighting configuration for providing improved vision acuity includes a first light source emitting light having a first wavelength peak in the range from 500 to 530 nm; a second light source emitting light having a second wavelength peak in the range from 600 to 640 nm; and a third light source emitting light having a third wavelength peak in the range from 440 to 460 nm. The radiated power at 555 nm is less than 15% of the radiated power at the wavelength of the second wavelength peak. The light configurations are characterized by an S/P ratio between 2 and 5. Optionally the radiated power at 480 nm is at least 20% of the second wavelength peak. The light sources used in the lighting configuration can be LEDs, preferably LEDs that are substantially free of a color conversion layer.

Abstract: A lighting configuration for providing improved vision acuity includes a first light source emitting light having a first wavelength peak in the range from 500 to 530 nm; a second light source emitting light having a second wavelength peak in the range from 600 to 640 nm; and a third light source emitting light having a third wavelength peak in the range from 440 to 460 nm. The radiated power at 555 nm is less than 15% of the radiated power at the wavelength of the second wavelength peak. The light configurations are characterized by an S/P ratio between 2 and 5. Optionally the radiated power at 480 nm is at least 20% of the second wavelength peak. The light sources used in the lighting configuration can be LEDs, preferably LEDs that are substantially free of a color conversion layer.