The use of molybdenum foil in discharge lamp
The foil electrode is a banded foil electrode that is embedded in the inside of the wall of the discharge capacitor and is symmetrically positioned above and below the capacitor. The foil electrode is formed by molybdenum foil. One end of the molybdenum foil is removed to the outside of the discharge capacitor, and the other end is completely buried into the inside of the discharge capacitor wall and terminated. In order to realize the electrical connection between the foil electrode and the outside, the end is extended to the outside, but the extraction part is the opposite side. Molybdenum rods can also be isoelectrically connected and removed to the outside. The foil electrode can also be a foil electrode of the same material in addition to molybdenum foil. A reflective component is a component that reflects light. Depending on the purpose of the discharge lamp, there can also be no reflective components. An exit window is a window that takes out light along the axis.
To make a discharge capacitor, prepare two quartz tubes of different diameters. Insert the thin quartz tube into the thick quartz tube so that the two are stacked together, and insert the molybdenum foil between the two quartz tubes. The gap between the thick quartz tube and the thin quartz tube is reduced pressure and heated from the outside. The thick quartz tube is deformed and closely bonded to the fine quartz tube. During continued heating, parts other than molybdenum foil are completely fused. The two quartz tubes become one, forming a discharge capacitor. Molybdenum foil is buried into the wall of the capacitor, which can prevent surface discharge outside the discharge space.
