AN ELECTRIC LAMP

摘要

The present invention relates to an electric lamp (1) for vehicle headlights with low-beam function comprising a light source (2) emitting visible light (4), a transparent envelope (3) having an exterior surface (3 ') and an interior surface (3'') enclosing said light source (2), at least one multilayer structure (7) provided on the exterior surface (3') of the envelope (3), wherein a first light (5) substantially with a bluish- white color transmits the multilayer structure (7) directly and a second light (6) substantially with a yellowish color transmits the multilayer structure (7) after being reflected at the multilayer structure (7), wherein the multilayer structure (7) being of none light absorbing materials is provided in such a way, that the color of light of a standard light source A being reflected at the multilayer structure (7) lies within a triangle in the CIE 1931 Yxy color space defined by the x, y coordinates (0.58; 0.42), (0.58; 0.30) and (0.70; 0.30) wherein the lightness Y is in the range of 2.5 = Y = 17.5, wherein none of the emitted visible light (4) is absorbed by the multilayer structure (7).