JPS5870667U

JPS5870667U - high pressure metal vapor discharge lamp

Info

Publication number: JPS5870667U
Application number: JP16438881U
Authority: JP
Inventors: 稲田　暁勇
Original assignee: 株式会社日立製作所
Priority date: 1981-11-05
Filing date: 1981-11-05
Publication date: 1983-05-13

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 drawings]

°　第１図は、従来の一例における高圧ナトリウムラン
プ発光管の管端封着部の構成を示す管端部縦断面図にし
て、第２図は、従来の他の例における第１図と同様の管
端部縦断面図で弗る。第３図は、本考案の一実施例にお
ける第１図と同様の管端部縦断面図にして、第４図は第
３図の線Ａ−Ａによる断面図である。第５図は、本考案
の他の実施例における第１図と同様の管端部の縦断面図
にして、−第６図は第５図の線Ｂ−Ｂによる断面図であ
り、第７図は第５図の線Ｃ−Ｃによる断面図である。１・・・アルミナチューブ、２，４・・・アルミナディ
スク（閉塞部材）、３・・・電力導入体、５・・・アル
ミナチューブの管端面、６・・・アルミナディスクの封
着面、７・・・案内孔、８・・・案内スリット、１１゜
１２．１３．１４・・・封着ガラス。° Figure 1 is a longitudinal sectional view of the tube end showing the configuration of the tube end sealing part of a high-pressure sodium lamp arc tube in one conventional example, and Figure 2 is the same as Figure 1 in another conventional example. A vertical cross-sectional view of the tube end. FIG. 3 is a longitudinal sectional view of a tube end similar to FIG. 1 in an embodiment of the present invention, and FIG. 4 is a sectional view taken along line A--A in FIG. 3. 5 is a longitudinal sectional view of the tube end similar to FIG. 1 in another embodiment of the present invention; - FIG. 6 is a sectional view taken along line B--B in FIG. 5; The figure is a sectional view taken along line CC in FIG. 5. DESCRIPTION OF SYMBOLS 1... Alumina tube, 2, 4... Alumina disk (closure member), 3... Power introduction body, 5... Tube end surface of alumina tube, 6... Sealing surface of alumina disk, 7 ...Guide hole, 8...Guide slit, 11°12.13.14...Sealing glass.

Claims

[Scope of utility model registration request]

(1) As a closing member for the end of the translucent ceramic tube of the arc tube, the inner part that fits into the ceramic tube and the end face of the ceramic tube are sealed with a sealing glass protruding from the opposite end. an outer portion having a surface, and an insertion hole for inserting the power introduction body is provided in the center portion, a guide hole in the inner portion for allowing the molten glass of the sealing glass to flow into the insertion hole; Alternatively, a guide slit is provided, and in the sealing step, the sealing glass is melted to seal the end face of the ceramic tube and the sealing surface of the outer portion of the closing member, and the guide hole or A high-pressure metal vapor discharge lamp characterized in that the lamp is configured to flow through the guide slit in the direction of the insertion hole and seal the power introduction body and the closing member on the wall surface of the insertion hole.

(2) The high-pressure metal vapor discharge lamp according to claim 1, wherein the guide hole or guide slit is filled with molten glass of the sealing glass after the sealing process. .