| abstract |
The invention relates to a conversion element (100) comprising a wavelength - converting conversion material (4), a matrix material (3) in which the conversion material (4) is introduced, a substrate (2) on which the matrix material (3) and the conversion material (4 ), wherein the matrix material (3) comprises at least one condensed sol-gel material selected from the group consisting of: water glass, metal phosphate, aluminum phosphate, monoaluminum phosphate, modified monoaluminum phosphate, alkoxytetramethoxysilane, tetraethylorthosilicate, methyltrimethoxysilane, methyltriethoxysilane, titanium alkoxide, silica sol, Metal alkoxide, metal oxane or metal alkoxan, wherein the conversion element (100) in the beam path of a laser source (1) is arranged, wherein the conversion element (100) with respect to the laser source (1) is mechanically immovably mounted. |