Method of preparing a light-absorbing coating

摘要

An electric lamp is disclosed comprising a light-transmitting lamp vessel ( 1 ) which accommodates a light source ( 2 ). At least a part of the lamp vessel ( 1 ) is provided with a light-absorbing coating ( 3 ), the light-absorbing coating comprising stabilized pigments which are incorporated in a sol-gel matrix. In order to stabilize the pigments, an aminosilane is present. Moreover, a lamp vessel ( 1 ) fit for an electric lamp is disclosed, as well as a method of preparing a light-absorbing layer to be applied to the lamp vessel of an electric lamp.