Patent ID: 6841937
Filing Date: 2005-01-11
Classification: C03C,H01J,H01K

Abstract:
1. An electric lamp which is provided with an electric light source in a light-transmitting bulb provided with a coating consisting essentially of an inorganic colored pigment selected from the group formed by oxide nitride pigments of the general formula or an oxide-nitride pigment of the general formula or an oxide-nitride pigment of the general formula  B=V, Nb, Ta, Mo, W and or an oxide-nitride pigment of the general formula or an oxide-nitride pigment of the general formula or an oxide-nitride pigment of the general formula or an oxide-nitride pigment of the general formula  A′ 2 CBO 5 N, wherein or an oxide-nitride pigment of the general formula or an oxide-nitride pigment of the general formula and with means for operating the electric light source.