Matsushita Electric Industrial Co., Ltd.

Tsuyoshi Nagakura

Makoto Horiuchi

Yoshitaka Kurimoto

Kazuhisa Tanaka

Ryo Minamihata

A discharge lampcomprises a luminous bulbin which a luminous materialis encapsulated and a pair of electrodesare arranged to be opposed to each other, and sealing parts () that are formed at both ends of the luminous bulband in which metal foil structureselectrically connected to the pair of electrodes, respectively, are sealed. At least one of the metal foil structuresis composed of a first metal foil, a second metal foiland a metal barcoupling both of them. At least one sealing partof the sealing parts includes a cavityaround the position where in the sealing part the metal baris located, and at least a rare gas is encapsulated in the cavity

Growing community of inventors

Osaka, Japan

Tsuyoshi Nagakura