High pressure discharge lamp, lamp with reflecting mirror and image projecting device

摘要

A high pressure discharge lamp includes a luminous tube enclosing a luminous material in which a pair of electrodes are opposed; and a pair of sealing portion for sealing metal foils electrically connected to the pair of electrodes, respectively. External leads are connected to the metal foils on the side opposite to the luminous tube side. At least one of the external leads extends outward from the end face of the sealing portion. A cap portion for covering the external lead is provided in a base portion of the external lead exposed from the end face of the sealing portion.