An electric lamp which is provided with an electric light source in a
light-transmitting bulb provided with a coating comprising an inorganic
colored pigment selected from the group formed by oxide nitride pigments
of the general formula
A.sub.1-x A'.sub.x BO.sub.2-x N.sub.1+x, wherein A=Mg, Ca, Sr, Ba, Zn,
A'=Ln, Bi, Al, Fe, B=V, Nb, Ta, Mo, W and B'=Ti, Zr, Hf, Sn, Ge, Si, Nb,
Ta and 0
Uma lâmpada elétrica que fosse fornecida com uma fonte clara elétrica em um bulbo luz-transmissor forneceu com revestir compreendendo um pigment colorido inorgánico selecionado do grupo dado forma por pigments do nitride do óxido da fórmula geral A.sub.1-x A'.sub.x BO.sub.2-x N.sub.1+x, wherein A=Mg, CA, sr, ba, zn, A'=Ln, bi, al, Fe, B=V, Nb, Ta, Mo, W e B'=Ti, zr, Hf, sn, Ge, silicone, Nb, Ta e 0
