| abstract |
(57) [Summary]nPROBLEM TO BE SOLVED: To show high constancy even when operating temperature changes. Lighting units with high color reproducibility and high efficiency To providenSOLUTION: At least one LED is provided as a light source. This LED has a primary emission in the range of 300 to 485 nm. Phosphor that emits radiation and is exposed to the primary radiation of this LED This radiation can be partially or completely For lighting units that are converted to Both have a peak emission wavelength of 540 to 620 nm Eu-activated sialo emitting yellow-orange This is performed using a phosphor derived from the type of Iaron has the formula M p / 2 Si 12 - p - q Al p + q O q N 16 - q : Eu 2+ In the above formula, M is Ca alone Or Ca in combination with Sr or Mg, and q is 0 to 2.5, wherein p is 0-3, lighting unit |