| 摘要 |
<p>The invention describes a high intensity gas-discharge lamp (1) comprising a discharge vessel (5,5') enclosing a fill gas in a discharge chamber (2) and comprising a pair of electrodes (3,3',4,4') extending into the discharge chamber (2), and wherein the fill gas includes a halide composition comprising a halide of sodium and, optionally, scandium iodide to a total proportion of at least 30wt%,and a halide of terbium and/or gadolinium to a proportion of at least 5wt%.</p> |
