JPS6385861U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の第１の実施例を示す断面図、
第２図は本考案に係るランプを点灯させるための
回路例を示す図、第３図は本考案の第２の実施例
を示す断面図、第４図は本考案の第３の実施例を
示すもので、ａは平面図、ｂは断面図、第５図は
従来例の断面図である。 １０……ガラスバルブ、１１……ガラスステム
、１２……陰極、１３……補助陽極、１４……陽
極、１５……反射体、１６……放電孔、１７……
螢光体。 FIG. 1 is a sectional view showing a first embodiment of the present invention;
FIG. 2 is a diagram showing an example of a circuit for lighting a lamp according to the present invention, FIG. 3 is a sectional view showing a second embodiment of the present invention, and FIG. 4 is a diagram showing a third embodiment of the present invention. 5, a is a plan view, b is a sectional view, and FIG. 5 is a sectional view of a conventional example. 10...Glass bulb, 11...Glass stem, 12...Cathode, 13...Auxiliary anode, 14...Anode, 15...Reflector, 16...Discharge hole, 17...
Fluorescent material.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 先端部を発光面とする円筒状のガラスバルブの
内部に陰極、陽極および補助陽極を前記発光面と
反対側より配設すると共に、バルブ内に放電用ガ
スを封入し、前記陰極と補助陽極の間で常時微放
電させると共に、陰極と陽極の間で主放電させて
成る片口金型螢光ランプであつて、内面に螢光体
が被着され、底部に放電孔を有する凹型の反射体
を、前記陽極が反射体底部より前方に突出するよ
うに配置すると共に、前記陰極と補助陽極を反射
体の後方に設けたことを特徴とする片口金型螢光
ランプ。 A cathode, an anode, and an auxiliary anode are placed inside a cylindrical glass bulb whose tip is a light emitting surface, from the side opposite to the light emitting surface, and a discharge gas is sealed in the bulb, so that the cathode and the auxiliary anode are It is a single-capped fluorescent lamp, in which a slight discharge is constantly generated between the cathode and the anode, and a main discharge is generated between the cathode and the anode. 1. A single-end type fluorescent lamp, characterized in that the anode is arranged to protrude forward from the bottom of the reflector, and the cathode and auxiliary anode are provided behind the reflector.