Title:
蛍光ランプ
Document Type and Number:
Japanese Patent JP4148797
Kind Code:
B2
Abstract:
A compact self-ballasted fluorescent lamp has an arc tube in a double-spiral configuration, the arc tube being formed by bending a glass tube around an axis of spiral up to both ends of the glass tube, and a holder that is made of resin and holds this arc tube. Electrodes, each being equipped with a filament coil, are sealed at respective ends of the glass tube. The holder is made up of a holding resin member with a cylindrical shape having a closed bottom and a resin cover in a cone shape, the holder including a circumferential wall and an end wall that is at the edge of the circumferential wall. A heat-dissipating plate is provided inside the holding resin member, at a position corresponding to where the filament coils within the glass tube are.
Inventors:
Yuji Tsuneto
Hiroki Nakagawa
Nakanishi Akiko
Kenji Itaya
Kenji Nakano
Iwase Kohei
Hiroki Kitagawa
Fumiyoshi
Shiro Iida
Hiroki Nakagawa
Nakanishi Akiko
Kenji Itaya
Kenji Nakano
Iwase Kohei
Hiroki Kitagawa
Fumiyoshi
Shiro Iida
Application Number:
JP2003055004A
Publication Date:
September 10, 2008
Filing Date:
February 28, 2003
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
H01J61/30; H01J61/52; H01J5/50; H01J7/24; H01J61/00; H01J61/32
Domestic Patent References:
| JP61230202A | ||||
| JP3152802A | ||||
| JP9017378A | ||||
| JP11185709A |
Attorney, Agent or Firm:
Shiro Nakajima