JPS59138165U

JPS59138165U - Low pressure mercury vapor discharge lamp for display elements

Info

Publication number: JPS59138165U
Application number: JP3125783U
Authority: JP
Inventors: 今村　人士; 昭浩井上; 亀井　武人
Original assignee: 株式会社東芝
Priority date: 1983-03-04
Filing date: 1983-03-04
Publication date: 1984-09-14
Also published as: JPS6336930Y2

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図ないし第５図は本考案の第１実施例を示し、第１
図は表示スクリーンの概略構成図、第２図は第１図中■
部の拡大図、第３図は表示素子の□斜視図、第４図は断
面図、第５図は第４図中Ｖ−■線に沿う断面図、第６図
は本考案の第、２実施例を示す一部断面した゛側面図、
第７図は本考案め第３実施例を示す断面図である。３・・・発光管、４・・・電極、６・・・曲成部、８・
・・外筒、１０・・・開口部、１３・・・光反射面。第６図− 第７図　　　−−1 to 5 show a first embodiment of the present invention.
The figure is a schematic configuration diagram of the display screen, and Figure 2 is in Figure 1.
3 is a □ perspective view of the display element, FIG. 4 is a sectional view, FIG. 5 is a sectional view taken along the line V-■ in FIG. 4, and FIG. A partially sectional side view showing an example;
FIG. 7 is a sectional view showing a third embodiment of the present invention. 3... Arc tube, 4... Electrode, 6... Bent part, 8...
... Outer tube, 10... Opening, 13... Light reflecting surface. Figure 6 - Figure 7 --

Claims

[Claims for Utility Model Registration] (1) A roughly U-shaped arc tube with electrodes sealed at both ends,
It is housed in an outer tube that is open at one end and has a good isotropic shape, and the bent part of the arc tube is positioned in the opening of this outer tube, and the inner peripheral surface of the outer tube is exposed to light. A low-pressure mercury vapor discharge lamp for a display element, characterized by having a reflective surface. , (2) The low-pressure mercury vapor discharge lamp for display devices according to claim 1, wherein the opening of the outer cylinder is approximately circular, approximately square, or approximately regular hexagonal. . - (3) A portion of the light reflecting surface facing the opening is formed into a substantially parabolic shape, and the light is emitted from the arc tube. A low-pressure mercury vapor discharge lamp for a display element according to claim (1) of the registered utility model, characterized in that the light is focused on the side of the opening.