Patent ID: 9671089
Date: 2017-06-06
CPC Classifications: F21S,F21V,F21Y,G02B,H01L

Claim:
1. A conversion element comprising: a scattering layer; a reflection layer; and a conversion layer arranged between the scattering layer and the reflection layer, wherein the scattering layer is designed to transmit a first portion of a primary radiation impinging on the scattering layer from a side facing away from the conversion layer into the conversion layer, and to scatter a second portion of the primary radiation impinging on the scattering layer toward that side of the scattering layer which faces away from the conversion layer, the conversion layer comprises at least one conversion means which is designed to convert at least part of the first portion of the primary radiation into a secondary radiation having a higher wavelength different from the primary radiation, the reflection layer has a reflective effect at least with regard to the secondary radiation, and the scattering layer comprises a wavelength-selective mirror layer, which has a partly reflective effect for the primary radiation and a transmissive effect for the secondary radiation, and the scattering layer comprises first and second partial layers, wherein the second partial layer itself is embodied as the wavelength-selective mirror layer and has a plurality of partial areas which are inclined with respect to a main extension plane of the wavelength-selective mirror layer and form a plurality of different angles therewith, and the wavelength-selective mirror layer is arranged between the first partial layer of the scattering layer and the conversion layer.