| 摘要 |
The invention relates to a discharge lamp (1) comprising an electrically conductive shielding (12, 13) which at least partly encloses the discharge chamber (2). The electrodes (3-5) are separated from the inside of the discharge chamber (2) by a dielectric barrier (6-8). In addition, the shielding (12, 13) is galvanically separated from the electrodes (3-5) by a dielectric (2). To prevent to a large extent the capacitive coupling of the electrical energy, which during operation of the lamp is fed to the lamp electrodes (3-5), to the electrically conductive shielding (12, 13), the thickness d D and dielectric constant epsilon D of the dielectric (2) and the thickness d B and dielectric constant epsilon B of the barrier (6-8) which separates the electrodes (3-5) from the filling gas, are adjusted to each other in such a way that the relation: d D /epsilon D >=1,5.d B /epsilon B is met. |
