Patent ID: 7276736
Filing Date: 2007-10-02
Classification: C09K,H01L,Y02B

Abstract:
1. Light emitting semiconductor body for use in an LED housing, said semiconductor body being provided with a layer comprising a wavelength-converting casting composition; and said casting composition comprising luminous substance particles; said luminous substance particles comprising luminous substance pigments selected from the group consisting of garnets doped with rare earths; thiogallates doped with rare earths; aluminates doped with rare earths; and orthohsilicates doped with rare earths; and said luminous substance pigments having grain sizes ≦20 μm and a median diameter ≦5 μm, wherein 50% of the pigments have a grain diameter greater than said median diameter and 50% of the pigments have a grain diameter less than said median diameter.