JPH0186060U - - Google Patents
Info
- Publication number
- JPH0186060U JPH0186060U JP17969087U JP17969087U JPH0186060U JP H0186060 U JPH0186060 U JP H0186060U JP 17969087 U JP17969087 U JP 17969087U JP 17969087 U JP17969087 U JP 17969087U JP H0186060 U JPH0186060 U JP H0186060U
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- electrode shaft
- discharge lamp
- arc tube
- coil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
Description
第１図は本考案の一実施例である高圧ナトリウ
ムランプ発光管の一端部側の縦断面図、第２図は
同ランプ発光管の電極軸中間部の縦断面図、第３
図は他の実施例の発光管一端部側の縦断面図、第
４図および第５図はそれぞれ異なる従来ランプ発
光管の一端部側の縦断面図を示す。
１……発光管、２……封着剤、３……閉塞体（
金属製）、３Ａ……閉塞体（導電性セラミクス製
）、４……金属管、４ｂ，３ａ……ねじ溝、５…
…電極、６……電極軸、６ａ……電極軸先端部、
６ｂ……電極軸基端側、６ｃ……ねじ山、６ｄ…
…電極軸中間部、７……コイル、８……平坦部。
Fig. 1 is a longitudinal cross-sectional view of one end of a high-pressure sodium lamp arc tube that is an embodiment of the present invention, Fig. 2 is a longitudinal cross-sectional view of the middle part of the electrode axis of the lamp arc tube, and Fig.
The figure shows a longitudinal sectional view of one end of the arc tube of another embodiment, and FIGS. 4 and 5 show longitudinal sectional views of one end of the arc tube of a different conventional lamp. 1... Arc tube, 2... Sealing agent, 3... Closure body (
(made of metal), 3A...Closing body (made of conductive ceramics), 4...Metal tube, 4b, 3a...Thread groove, 5...
...electrode, 6...electrode shaft, 6a...electrode shaft tip,
6b...electrode shaft proximal end side, 6c...screw thread, 6d...
...Intermediate portion of electrode axis, 7...Coil, 8...Flat portion.
Claims (1)
イルを巻装した電極を、電極軸の基端部に設けた
ねじ部を螺合することにより、固着支持させてな
るセラミツク放電灯において、上記電極は、コイ
ルとねじ部との中間に位置する電極軸に少なくと
も一対の対向する平坦部を設けたことを特徴とす
るセラミツク放電灯。 In a ceramic discharge lamp in which an electrode having a coil wound around an electrode shaft is fixedly supported in a sealed portion of a translucent ceramic arc tube by screwing a screw portion provided at the base end of the electrode shaft, A ceramic discharge lamp characterized in that the electrode is provided with at least a pair of opposing flat parts on the electrode shaft located between the coil and the threaded part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17969087U JPH0186060U (en) | 1987-11-27 | 1987-11-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17969087U JPH0186060U (en) | 1987-11-27 | 1987-11-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0186060U true JPH0186060U (en) | 1989-06-07 |
Family
ID=31471236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17969087U Pending JPH0186060U (en) | 1987-11-27 | 1987-11-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0186060U (en) |
-
1987
- 1987-11-27 JP JP17969087U patent/JPH0186060U/ja active Pending