ELECTRODE FOR HIGH-PRESSURE DISCHARGE LAMP, HIGH-PRESSURE DISCHARGE LAMP, AND METHOD FOR MANUFACTURING ELECTRODE FOR HIGH-PRESSURE DISCHARGE LAMP

摘要

Provided is an electrode for a high-pressure discharge lamp, which eliminates spring-back of an electrode coil, and has high productivity and high coil aligning accuracy.  The electrode for the high-pressure discharge lamp is composed of an electrode core bar (30) and a coil (35) mounted on the electrode core bar.  The electrode core bar (30) is composed of a small-diameter section (31) on the power supply side and a large-diameter section (32) on the leading end side.  The large-diameter section (32) has a large-diameter section (32a) on the small-diameter section side, a small-diameter section (32b) having an outer diameter smaller than that of the large-diameter section and forming a step (s) with the large-diameter section, and a leading end section (32c).  The coil (35) is covered between the step (s) and the leading end section.