JPS59188666U

JPS59188666U - fluorescent lamp

Info

Publication number: JPS59188666U
Application number: JP8454583U
Authority: JP
Inventors: 雅弘東川; 山田　景一
Original assignee: 松下電工株式会社
Priority date: 1983-05-31
Filing date: 1983-05-31
Publication date: 1984-12-14

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来のコンパクト螢光ランプの一例を示す一部
断面の正面図、第２図は本考案に係る螢光ランプの一実
施例の要部を示す断面図である。１・・・・・・外管、２・・・・・・ステム、３・・・
・・・螢光体、４・・・・・・内管、５・・・・・・ホ
ルダー、６・・・・・・開口、７・・・・・・電極、８
・・・・・・点灯装置部、９・・・・・・ねじ口金、１
０・・・・・・透明体。FIG. 1 is a partially sectional front view showing an example of a conventional compact fluorescent lamp, and FIG. 2 is a sectional view showing essential parts of an embodiment of the fluorescent lamp according to the present invention. 1...Outer tube, 2...Stem, 3...
... Fluorescent body, 4 ... Inner tube, 5 ... Holder, 6 ... Opening, 7 ... Electrode, 8
......Lighting device part, 9...Screw cap, 1
0...Transparent body.

Claims

[Scope of utility model registration request]

In the airtight space formed by the outer tube and the stem, a bent inner tube whose inner surface is coated with a phosphor is arranged through a holder fixed to the stem, and a communication path provided between the inner tube and the holder is arranged. In a fluorescent lamp, a series of discharge paths are formed by a fluorescent lamp, and a pair of electrodes are arranged at both ends of the discharge path, and the inner tube is made of glass having a sodium (Na) content of about 3 to 10%. A fluorescent lamp is further characterized in that a transparent cylindrical body having low thermal conductivity and low transmittance to ultraviolet rays is provided around the electrode.