Rare gas discharge lamp

Abstract

Abstract PURPOSE:To obtain an uniform illuminance with a sufficient quantity of light by sealing a rare gas mainly containing xenon gas in a tubular glass bulb having a phosphor film adhered on the inner surface, providing a pair of band electrodes on the outer wall, and applying a high frequency voltage. CONSTITUTION:A phosphor film 4 is adhered onto the inner circumferential surface of a tubular glass bulb 2, both the end surfaces of which are sealed by a low melting point glass 5, and a rare gas mainly containing xenon gas is sealed in the inner part. On the outer circumferential surface of the bulb 2, band electrodes 6a, 6b having determined widths are sealed over the whole length, and the outside thereof is covered with a transparent insulating film 7. When a high frequency voltage is applied between the electrodes 6a, 6b, xenon gas discharge is caused in the internal space of the bulb 2, whereby the film 4 is excited to emit a visual light to the outside. Hence, a rare gas discharge lamp having a sufficient quantity of light and an axially uniform illuminance distribution can be obtained.

Inventors

• 👤 Seiichiro Fujioka
• 👤 誠一郎 藤岡
• 👤 Satoshi Tamura
• 👤 敏 田村
• 👤 Tsutomu Chikada
• 👤 近田　勉
• 👤 Osamu Matsubara
• 👤 松原　修
• 👤 Masataka Yoshida
• 👤 吉田　聖孝

Bibliographic Details