High-pressure gas discharge lamp, has product with electrical conductivity and cross-sectional surface larger than in electrode-sided region and contact element-sided region and provided in overlapping region and middle region

摘要

The lamp has a connection unit (22a) comprising a product with electrical conductivity and cross-sectional surface smaller than in a contact element-sided region (42). A product with electrical conductivity and cross-sectional surface is larger than in an electrode-sided region (40) and the contact element-sided region and is provided in an overlapping region (32) and a middle region. The overlapping and middle regions are provided between the electrode-sided region and the contact element-sided region. The connection unit consists of two molybdenum films (26, 28).