Safety switch for an electric lamp having an inner bulb and an outer bulb

摘要

An electric lamp (1) comprising a gastight lamp vessel (2) for the transformation of electrical energy into light, which lamp vessel has two current conductors (3,6; 4,7) which extend to the outside. The lamp further comprises an outer envelope (9) in which the lamp vessel (2) is arranged with a space between the lamp vessel and the outer envelope. The outer envelope (9) has a lamp cap (11) to which the current conductors (6,7) are electrically connected. The lamp (1) further has means (17) for switching off the lamp by short-circuiting the current conductors (6,7) in the case of fracture of the outer envelope (9).