High pressure discharge lamps with sealing members

摘要

A high pressure discharge lamp including: (1) a ceramic discharge tube having an interior space filled with an ionizable light-emitting material and a starting gas, the ceramic discharge tube including a main body and at least one end portion connected to an end of the main body, a corner being formed between an inner surface of the main body and an inner surface of the at least one end portion; (2) a sealing member at least partially fixed inside the at least one end portion, a through-hole being formed through the sealing member; and (3) a current conductor inserted through the through-hole of the sealing member, wherein a storing recess for storing said ionizable light-emitting material as a liquid phase therein is formed at a surface of the sealing member on a side of the interior space.