| 主权项 |
1. A short arc discharge lamp, comprising:
a body that includes a reflection surface and a front opening, the reflection surface is curved in a concave shape and includes a first reflection surface section and a second reflection surface section, the first reflection surface section has a shape along a first quadric surface of revolution, the second reflection surface section has a shape along a second quadric surface of revolution; a cathode and an anode that are opposed to each other in a discharge space of the body, the discharge space is defined by the reflection surface that surrounds the discharge space; and a window member that covers the front opening, the first reflection surface section has a first focal point at a first position between the cathode and the anode, and the second reflection surface section is continuous from the first reflection surface section, and has a second focal point at a second position displaced toward front from the first focal point. |
