Patent ID: 8853923

Claim:
A discharge tube comprising: a glass bulb in which noble gas is enclosed; a pair of electrodes protruding from both ends of the glass bulb in a longitudinal direction of the glass bulb; and a connector connected to each of the electrodes, wherein each of the electrodes includes at least an axis section and a large-diameter section having a step section and a circumferential face, the step section includes a first latching section for latching onto the connector, the circumferential face includes a contact section with which the connector comes in contact, the connector includes a connector body into which the electrode is inserted, a second latching section for latching onto the first latching section, and a connecting section connected to the contact section of the electrode, and the connecting section protrudes inward from the connector body so that the connecting section elastically deforms when the connecting section is in contact with the contact section of the electrode.