ELECTRIC LAMP

摘要

A lamp includes a tube which forms part of a sealed vessel, extending between a lamp cap and a pinch at an end of the tube inside the vessel. A current supply conductor extending between a cap contact and a light source inside the vessel includes a fuse wire portion which is embedded in an electrically insulated mass within the tube, part of the fuse wire portion being free of the insulating mass, between the mass and the lamp cap.