JPS6463258A - Cold cathode type discharge lamp device - Google Patents
Cold cathode type discharge lamp deviceInfo
- Publication number
- JPS6463258A JPS6463258A JP22095087A JP22095087A JPS6463258A JP S6463258 A JPS6463258 A JP S6463258A JP 22095087 A JP22095087 A JP 22095087A JP 22095087 A JP22095087 A JP 22095087A JP S6463258 A JPS6463258 A JP S6463258A
- Authority
- JP
- Japan
- Prior art keywords
- discharge
- discharge lamp
- electrode
- cathode
- tube body
- 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)
Abstract
PURPOSE:To prevent the backening 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 and a cathode which is attached to this tube body and has a cylindrical discharge part formed by a semiconductor ceramic. CONSTITUTION:A discharge lamp electrode consists of a tube body 1 for a discharge lamp drawing an end 1a, in which a discharge part 2b is set up, a cathode 2 using a semiconductor ceramic, where an electrode part 2a formed into disk form, an outer connecting electrode 6 consisting of a conductive cap fitted in a projection end 2d of the electrode part 2a of the cathode 2 and a lead wire 4 connected to this outer connecting electrode 6. Using the semiconductor ceramic, the form of the discharge part 2b is formed into cylindrical form, whereby field concentration is easily produced, and the time of transition from glow discharge to arc discharge can be shortened and, what is more, a surface area of the discharge part 2b is enlarged, taking a discharge area so wide, thus a stable discharge state is securable.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22095087A JPS6463258A (en) | 1987-09-02 | 1987-09-02 | Cold cathode type discharge lamp device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22095087A JPS6463258A (en) | 1987-09-02 | 1987-09-02 | Cold cathode type discharge lamp device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6463258A true JPS6463258A (en) | 1989-03-09 |
Family
ID=16759089
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP22095087A Pending JPS6463258A (en) | 1987-09-02 | 1987-09-02 | Cold cathode type discharge lamp device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6463258A (en) |
-
1987
- 1987-09-02 JP JP22095087A patent/JPS6463258A/en active Pending
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