| 摘要 |
<p>The invention describes a method of driving a discharge lamp (1) in a projection system (10), wherein, in a feed-forward control process, system status data (SD<SUB>L</SUB>, SD<SUB>F</SUB>, SD<SUB>V</SUB>) comprising static information pertaining to the design of the projection system and/or dynamic information pertaining to the projection system and/or dynamic information pertaining to the lamp operation are obtained. Based on the system status data (SD<SUB>L</SUB>, SD<SUB>F</SUB>, SD<SUB>V</SUB>), a momentary target light waveshape (LW<SUB>T</SUB>, LW<SUB>T'</SUB>) required by the projection system (10) and a waveshape correcting function are determined. Subsequently, the actual current (I) of the discharge lamp (1) is controlled regulated according to a momentary required waveshape (RW) which is determined based on the target light waveshape (LW<SUB>T</SUB>, LW<SUB>T'</SUB>) and the waveshape correcting function. Moreover the invention describes an appropriate driving unit (11) for driving a discharge lamp (1) and a projection system (10), comprising such a driving unit (11).</p> |
