JPH0328649U

JPH0328649U -

Info

Publication number: JPH0328649U
Application number: JP8904389U
Authority: JP
Priority date: 1989-07-31
Filing date: 1989-07-31
Publication date: 1991-03-22
Anticipated expiration: 2003-08-03
Also published as: JPH0530282Y2

Description

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

第１図は実施例に係る箔シール型放電灯の概略
断面図、第２図は従来の箔シール型放電灯の概略
断面図である。１０……発光管、１１……膨出部、１２……枝
管部、１３……電極、２０……ガラス製芯部材、
２１……角部、３０……金属デイスク、４０……
電極リード棒、５０…金属カツプ、５１……金属
カツプの底壁、５２……金属カツプの周壁、６０
……外部リード棒、７０……ガラス製保持部材、
７１……挿入孔、８０……金属箔、２５……ガラ
スカツプ、２６……ガラス製芯部材の底壁、２７
……ガラス製芯部材の空所、２８……空所を取り
囲むガラス部分、２９……ガラス製筒片。 FIG. 1 is a schematic cross-sectional view of a foil-sealed discharge lamp according to an embodiment, and FIG. 2 is a schematic cross-sectional view of a conventional foil-sealed discharge lamp. 10... Arc tube, 11... Swelling part, 12... Branch pipe part, 13... Electrode, 20... Glass core member,
21... Corner, 30... Metal disk, 40...
Electrode lead rod, 50...Metal cup, 51...Bottom wall of metal cup, 52...Peripheral wall of metal cup, 60
...External lead rod, 70...Glass holding member,
71...Insertion hole, 80...Metal foil, 25...Glass cup, 26...Bottom wall of glass core member, 27
...Vacancy of glass core member, 28...Glass portion surrounding the void, 29...Glass cylinder piece.

Claims

【実用新案登録請求の範囲】発光空間を形成する膨出部１１およびこれより
両端に伸びる枝管部１２を備えたガラス製の発光
管１０と、前記枝管部１２の内周に密着するよう配置され
た、前記膨出部１１に向かうに従つて外径が小さ
くなる円錐台型の柱状体よりなるガラス製芯部材
２０と、このガラス製芯部材２０における発光空間側端
面に当接するように配置された円形のリード用の
金属デイスク３０と、その一端が前記金属デイスク３０に接続され、
その他端が前記膨出部１１内に突出するよう配置
された電極リード棒４０と、その底壁が前記ガラス製芯部材２０における発
光空間側端面とは反対側の端面に当接し、その周
壁が前記枝管部１２の端部側に向かつて伸びるよ
う配置されたリード用の金属カツプ５０と、その一端が金属カツプ５０の底壁に接続され、
その他端が前記枝管部１２から突出して伸びるよ
う配置された外部リード溝６０と、その一端側が前記金属カツプ５０の底壁内部お
よび周壁内部に当接し、その他端側が前記枝管部
１２の端部内周に溶着された、前記外部リード棒
６０の一端側が挿入されてこれを保持する挿入孔
を有するガラス製保持部材７０と、前記ガラス製芯部材２０の外周面と前記枝管部
１２の内周面との間に密着挟持されて、その一端
が前記金属デイスク３０に接続され、その他端が
前記金属カツプ５０に接続された給電用の金属箔
８０とを備えてなることを特徴とする箔シール型
放電灯。[Claims for Utility Model Registration] A glass arc tube 10 having a bulging portion 11 forming a light emitting space and branch tube portions 12 extending from the bulge portion 11 to both ends thereof, and a light emitting tube 10 that is in close contact with the inner periphery of the branch tube portion 12. A glass core member 20 made of a truncated cone-shaped columnar body whose outer diameter decreases toward the bulged portion 11 is arranged, and a glass core member 20 is arranged so as to come into contact with the end surface of the glass core member 20 on the light emitting space side. a circular lead metal disk 30 arranged, one end of which is connected to the metal disk 30;
An electrode lead rod 40 is arranged such that its other end protrudes into the bulged portion 11, its bottom wall abuts the end surface of the glass core member 20 on the side opposite to the end surface on the light emitting space side, and its peripheral wall a metal cup 50 for a lead disposed so as to extend toward the end side of the branch pipe portion 12; one end thereof is connected to the bottom wall of the metal cup 50;
an external lead groove 60 whose other end is arranged to protrude and extend from the branch pipe section 12 ; A glass holding member 70 having an insertion hole into which one end of the external lead rod 60 is inserted and held therein is welded to the inner periphery of the outer lead rod 60; A metal foil 80 for power supply, which is tightly sandwiched between the foil and the peripheral surface, one end of which is connected to the metal disk 30, and the other end of which is connected to the metal cup 50. Seal type discharge lamp.