This invention provides a phosphor material capable of absorbing primary light and converting that light into white light having a high color rendering index and illumination devices made from the phosphor material. The white light may have a color rendering index of 100 and may be produced with an efficiency...http://www.google.fr/patents/US7279832?utm_source=gb-gplus-shareBrevet US7279832 - Phosphor materials and illumination devices made therefrom
Phosphor materials and illumination devices made therefrom
