在具有用于数字投影的氙气填充物的短弧高压放电灯（1）中，阴极（6）和阳极（8）的两个相互相对的端部（6a，8c）和阴极 ）当灯为热时，由0.8×P <= L <= 1×P + 1的关系给出，其中P是灯功率（kW）。 此外，阳极（8）的圆筒形中间部分（8a）的直径D以mm为单位，符合关系D> = 2.1×L + 10。

In a short-arc high-pressure discharge lamp (1) with a xenon filling for digital projection purposes, the distance L in mm of the two mutually facing end sections (6a, 8c) of the cathode (6) and the anode (8) in the hot condition of the lamp by the relation 0.8 x P ≤ L ≤ 1 x + P 1, where, where P is the lamp power in kW. Furthermore, the diameter D of the circular-cylindrical middle section (8a) followed by the anode (8) in mm of the relation D ≥ 2.1 x L + 10th