Patent ID: 8071996
Filing Date: 2011-12-06
Classification: C09K,H01L,Y02B

Abstract:
1. Light emitting semiconductor component comprising: a semiconductor body configured to emit electromagnetic radiation in a first wavelength range comprising a blue spectral range, wherein the first wavelength range comprises an intensity maximum at a wavelength between 420 nm and 460 nm; a layer provided on the semiconductor body and comprising a wavelength-converting casting composition for converting at least some of the radiation in the first wavelength range to radiation in a second wavelength range, wherein the casting composition comprises 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 orthosilicates doped with rare earths, and wherein the luminous substance pigments having grain sizes ≦20 μm and a median diameter ≦5 μm, wherein 50% of the pigments have a gain diameter greater than said median diameter and 50% of the pigments have a grain diameter less than said median diameter.