Led-based white-emitting illumination unit

Details Led-based white-emitting illumination unit Led-based white-emitting illumination unit

H - Electricity

01

L

H01L 33/00 (2006.01)

Patent

CA 2410668

The inventive white-light emitting luminescent conversion LED uses a chlorosilicate luminous substance which is doped with europium in addition to containing Ca and Mg and a garnet rare-earth substance, especially Y and/or Tb. This results in high quality colour reproduction and highly constant lighting properties at various temperatures.

L'invention concerne une diode électroluminescente à conversion, émettant une lumière blanche, qui utilise une substance luminescente de chlorosilicate contenant, outre du Ca et du Mg, un dopage à l'europium, ainsi qu'une substance luminescente à grenat, constituée de terres rares, notamment de Y et/ou Tb. On obtient ainsi un bon rendu des couleurs et une constance élevée des propriétés d'éclairage dans différentes conditions de température.

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