LAMP WITH A HOLDER ON ONE SIDE

摘要

An electric lamp with a holder on one side, particularly a high-pressure discharge lamp, comprising a vacuum-tight sealed inner vessel (2,3) which is surrounded by a surrounding part (24), wherein one holder with electrical connections bears the inner vessel and the surrounding part. The lamp is characterized by the following features: a) the holder is comprised of a holder stone (12) having a central opening (11) and a surrounding collar (13,63) in which the inner vessel is accommodated; b) the holder stone has a means for fixing the surrounding part, c) the surrounding part has a circular opening on the holder side, that has a given inner diameter ID, and has a radially outwardly protruding enlargement (27) with a given outer diameter UB, which is used as a holding means on the holder stone, wherein the ratio UB:ID = 1.25; d) the surrounding part is fixed to the holder stone by a cement-free mechanical holding mechanism.