| 摘要 |
<p>The high-pressure discharge lamp (1) comprises a lamp vessel (2) having a wall (3) which is exposed to a wall load of at least 30W/ cm2 during operation of the lamp, and a discharge space (4) in which a pair of electrodes (5a, 5b) are disposed. The discharge space (4) has a filling that comprises a rare qh and halides (not fluoride) of tin and indium, to which filling an alkali halide is added, the alkali being potassium, rubidium or cesium, and halide being chlorine, bromine, or iodine. The high-pressure discharge lamp (1) according to the invention has an improved resistance to corrsion and to crystallization of the quartz glass wall (3) because of shielding or spacer menas (8) by which a direct contact between electrode rods (30) and the wall (3) of the lalmp vessel (2) is counteracted.</p> |
