Method of representing a video image by means of a projector

The invention relates to a method of representing a video image based on a video signal by means of a projector which comprises an image display device and a high-pressure gas discharge lamp, which lamp is supplied with a square-wave alternating current (I, I) on which a current pulse (P, P, P, P) is superimposed before each phase reversal. According to the invention, the alternating current (I, I) is superimposed with a second current pulse (P, P, P, P, P, P) of the same polarity. A simple attunement of the alternating current frequency to the image frequency without image artifacts is made possible by the second pulses (P, P, P, P, P, P).