AN ELECTRIC INCANDESCENT LAMP WITH INFRARED REFLECTING LAYER

摘要

An electric incandescent lamp comprising a light-transmitting envelope (2) provided with an infrared-reflecting layer, the envelope (2) having a longitudinal axis (1). The lamp furthermore comprises a luminous member (5) having two substantial parallel portions (6) that are positioned substantially parallel to said longitudinal axis (1). In a sectional view perpendicular to said longitudinal axis (1), said envelope (2) has substantially an elliptical shape with said two portions (6) of the luminous member (5) in respective focal points of said elliptical shape.