| abstract |
Illumination unit with at least one LED as a light source, the LED emitting primary radiation in the range from 300 to 570 nm, this radiation being partially or completely converted into longer-wave radiation, by phosphors which are exposed to the primary radiation of the LED, the conversion being at least with the aid of a nitride-containing phosphor which emits with a wavelength of the peak emission at 430 to 670 nm and which comes from the class of Ce or Eu-activated nitrides, oxynitrides or sialones. |