JPS6463257A - Discharge lamp device - Google Patents
Discharge lamp deviceInfo
- Publication number
- JPS6463257A JPS6463257A JP22094987A JP22094987A JPS6463257A JP S6463257 A JPS6463257 A JP S6463257A JP 22094987 A JP22094987 A JP 22094987A JP 22094987 A JP22094987 A JP 22094987A JP S6463257 A JPS6463257 A JP S6463257A
- Authority
- JP
- Japan
- Prior art keywords
- tube body
- semiconductor ceramic
- discharge lamp
- electrode
- cathode electrode
- 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
- Discharge Lamp (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
PURPOSE:To prevent the blackening phenomenon of a light emitting tube from occurring without entailing any chemical change due to heating as well as to aim at the promotion of long service life in a discharge lamp device by constituting it from a discharge lamp tube body, an electrode formed by a semiconductor ceramic to be set up in this discharge lamp tube body and a base part formed by an insulator ceramic sealing and supporting this electrode inside the said tube body. CONSTITUTION:An electrode part consists of a tube body 1 for a discharge lamp, a cathode electrode 2 using a semiconductor ceramic to be set up in this tube body 1 and a base part 3 formed by an insulator ceramic sealing and supporting this cathode electrode 2 in the inner part of the tube body 1, while the cathode electrode 2 consists of a discharge part 2a projected to the inside of the tube body 1 and an outer end 2b projected to the outside of the tube body 1, and current-energization is carried out by connecting a lead wire 4 connected to this outer end 2b to a power source (unillustrated herein). As for this semiconductor ceramic, a valence compensation type semiconductor ceramic is enumerable, by way of example. A typical example of this valence compensation type semiconductor ceramic is such one that used a barium titanate system. Since the cathode electrode 2 is formed with the semiconductor ceramic as above-mentioned, any chemical change due to heating is in no case produced there and a light emitting tube is prevented from blackening, thus the promotion of long service life can be realized.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22094987A JPS6463257A (en) | 1987-09-02 | 1987-09-02 | Discharge lamp device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22094987A JPS6463257A (en) | 1987-09-02 | 1987-09-02 | Discharge lamp device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6463257A true JPS6463257A (en) | 1989-03-09 |
Family
ID=16759077
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP22094987A Pending JPS6463257A (en) | 1987-09-02 | 1987-09-02 | Discharge lamp device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6463257A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0425150U (en) * | 1990-06-22 | 1992-02-28 | ||
FR2783092A1 (en) * | 1998-09-07 | 2000-03-10 | Aupem Sefli | Terminal element, for a luminescent or fluorescent tube used especially in illuminated signs, comprises an external metal electrode with an end portion inserted in a glass tip |
-
1987
- 1987-09-02 JP JP22094987A patent/JPS6463257A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0425150U (en) * | 1990-06-22 | 1992-02-28 | ||
FR2783092A1 (en) * | 1998-09-07 | 2000-03-10 | Aupem Sefli | Terminal element, for a luminescent or fluorescent tube used especially in illuminated signs, comprises an external metal electrode with an end portion inserted in a glass tip |
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