LUMINOUS DEVICE COMPRISING A GLASS-METAL DUCT, AND GLASS-METAL DUCT

摘要

The invention relates to a glass/glass-ceramics/metal duct for a luminous device comprising at least one body, especially a plate, consisting of a glass or glass-ceramics composition, said plate comprising at least one region through which a metallic part is guided. The inventive duct is characterised in that the body fully or partially consists of glass-ceramics, and the material of the body in the region through which the metallic part is guided has a thermal expansion coefficient corresponding essentially to the thermal expansion coefficient of the metallic part.