| 摘要 |
<p>The invention relates to a circuit arrangement for operating a high-pressure discharge lamp provided with a ballast circuit VI for generating a current through the high-pressure discharge lamp from a supply voltage, means I for controlling a power consumed by the high-pressure discharge lamp, means II for influencing a run-up behaviour of the high-pressure discharge lamp. According to the invention, the means II comprise means III for controlling the luminous flux of the high-pressure discharge lamp, and means IV for the automatic activation of the means I after the run-up of the high-pressure discharge lamp. It is achieved by this that the luminous flux of a high-pressure discharge lamp operated on the circuit arrangement has the same, substantially constant value during substantially the entire time duration of the run-up of the high-pressure discharge lamp and during stationary lamp operation. <IMAGE></p> |
