JPH02119342U

JPH02119342U -

Info

Publication number: JPH02119342U
Application number: JP2886589U
Authority: JP
Priority date: 1989-03-14
Filing date: 1989-03-14
Publication date: 1990-09-26

Description

[Brief explanation of drawings]

第１図は本考案の一実施例である冷陰極放電灯
の部分分解斜視図、第２図は本考案の他の実施例
である熱陰極放電灯の部分分解斜視図、第３図は
第２図に示される熱陰極放電灯における導電性キ
ヤツプ電極の断面図、第４図は第１図に示される
冷陰極放電灯を配線基板にマウントした状態で示
す斜視図、第５図はキヤツプ電極を有する従来の
放電灯を示す部分斜視図、第６図はキヤツプ電極
を有する従来の放電灯において外部リードと補助
始動導体との電気的接続状態を示す斜視図である
。１０……冷陰極放電灯、１１……バルブ、１２
，１３……外部リード、１４……補助始動導体、
１５，１６……導電性キヤツプ電極、２０……熱
陰極放電灯、２１，２２……外部リード、２３…
…導電性キヤツプ電極、２３Ａ……絶縁部、２３
Ｂ，２３Ｃ……導電部。 FIG. 1 is a partially exploded perspective view of a cold cathode discharge lamp which is an embodiment of the present invention, FIG. 2 is a partially exploded perspective view of a hot cathode discharge lamp which is another embodiment of the invention, and FIG. Figure 2 is a cross-sectional view of the conductive cap electrode in the hot cathode discharge lamp, Figure 4 is a perspective view of the cold cathode discharge lamp shown in Figure 1 mounted on a wiring board, and Figure 5 is the cap electrode. FIG. 6 is a partial perspective view showing a conventional discharge lamp having a cap electrode, and FIG. 6 is a perspective view showing an electrical connection state between an external lead and an auxiliary starting conductor in a conventional discharge lamp having a cap electrode. 10...cold cathode discharge lamp, 11...bulb, 12
, 13...external lead, 14...auxiliary starting conductor,
15, 16... Conductive cap electrode, 20... Hot cathode discharge lamp, 21, 22... External lead, 23...
...Conductive cap electrode, 23A...Insulating part, 23
B, 23C... Conductive part.

Claims

[Claims for Utility Model Registration] 1. In a discharge lamp in which an external lead conductive to the discharge electrode is exposed from the end of a bulb containing a built-in discharge electrode, the outer circumferential surface of the bulb end is provided with a wire that extends from the outer diameter of the bulb. A cylindrical conductive cap electrode with a small inner diameter and flexibility is elastically fitted,
A discharge lamp comprising the above-mentioned external lead and a conductive cap electrode in contact with each other. 2. In a discharge lamp in which multiple external leads are exposed from one end of a bulb containing a built-in discharge electrode, the outer peripheral surface of the bulb end has an inner diameter smaller than the outer diameter of the bulb and is flexible. and a cylindrical conductive cap electrode having a plurality of mutually insulated conductive parts is elastically fitted, and the plurality of external leads are brought into individual contact with the conductive parts.