Toshiba Lighting & Technology Corporation

Tetsuya Oono

Yuichiro Takahara

Takeo Yasuda

Masahiro Izumi

Kunihiko Ikada

Nobuhiro Tamura

Toshiyuki Ikeda

A bulb-shaped fluorescent lamp with an emission bulb having a bent tube and a lighting device having a circuit board and electronic parts mounted on the circuit board. The lighting device has a cover member with a cap and a holder for holding the emission bulb and the circuit board has a great part of its electronic parts disposed on the cap side. The lighting device has a fine tube that extends from the end of a portion of the bent tube toward the cap side within the cover member, and protrudes so that the surface temperature of a portion of said fine tube is kept in the range between 40&#x2013;70&#xb0;C. at the time of normal lighting and/or the fine tube extending from the end of the bent tube toward the cap side within the cover member protrudes from the end of said bent tube by 25&#x2013;70 mm.

Growing community of inventors

Kanazawa-Ku, Japan

Tetsuya Oono