| 摘要 |
The invention relates to a high-pressure discharge lamp with an outer envelope ( 1 ) in which a discharge vessel ( 11 ) is arranged around a longitudinal axis ( 22 ). The discharge vessel encloses, in a gastight manner, a discharge space ( 13 ) provided with an ionizable filling. The discharge vessel has a first ( 2 ) and a second ( 3 ) mutually opposed neck-shaped portion through which a first ( 4 ) and a second ( 5 ) current-supply conductor, respectively, extend to a pair of electrodes ( 6, 7 ) arranged in the discharge space ( 13 ). The outer envelope ( 1 ) has a bulb-shaped portion ( 2 ) adjacent the discharge space with a wall thickness d<SUB>1</SUB>. The remainder of the outer envelope has a wall thickness d<SUB>2</SUB>. The ratio of d<SUB>1</SUB>and d<SUB>2 </SUB>is in the range: Formula (I). Preferably, Formula (II), the bulb-shaped portion is formed in a mold. A simplified and compact high-pressure discharge lamp is provided by the invention.
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