JPS6463253A - Cold cathode type discharge lamp device - Google Patents
Cold cathode type discharge lamp deviceInfo
- Publication number
- JPS6463253A JPS6463253A JP22094587A JP22094587A JPS6463253A JP S6463253 A JPS6463253 A JP S6463253A JP 22094587 A JP22094587 A JP 22094587A JP 22094587 A JP22094587 A JP 22094587A JP S6463253 A JPS6463253 A JP S6463253A
- Authority
- JP
- Japan
- Prior art keywords
- discharge
- cathode
- tube body
- discharge lamp
- time
- 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.)
- Granted
Links
Landscapes
- Discharge Lamp (AREA)
Abstract
PURPOSE:To make a discharge part easily heatable at the time of glow discharge, letting thermionic emission come so easy and shorten the time of transition to arc discharge by constituting a device from a cathode which is attached to a tube body for a discharge lamp and has an electrode part formed by a semiconductor ceramic and the discharge part, and making resistivity in the discharge part of the said cathode higher than that in the electrode part. CONSTITUTION:A discharge lamp electrode consists of a cathode 2 using a semiconductor ceramic to be set up in a tube body for a discharge lamp and a lead wire 4 which is connected to a sealing support part 3 sealing and supporting this cathode 2 inside the tube body 1, and in and around an end 1a of the tube body 1 and the cathode 2, and extended to the outside via the sealing support part 3. In this cathode 2, resistivity in a discharge part 2b is set to be higher than that in an electrode part 2a. Thus, the resistivity of the discharge part 2b of the cathode 2 is made higher than that of the electrode part 2a whereby the discharge part 2b is easy to be heated at the time of glow discharge, thermionic emission comes so easy, and the time of transition to arc discharge is shortened. In addition, arc discharge starting voltage can be lowered.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22094587A JP2623094B2 (en) | 1987-09-02 | 1987-09-02 | Cold cathode discharge lamp device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22094587A JP2623094B2 (en) | 1987-09-02 | 1987-09-02 | Cold cathode discharge lamp device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6463253A true JPS6463253A (en) | 1989-03-09 |
JP2623094B2 JP2623094B2 (en) | 1997-06-25 |
Family
ID=16759013
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP22094587A Expired - Lifetime JP2623094B2 (en) | 1987-09-02 | 1987-09-02 | Cold cathode discharge lamp device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2623094B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5585694A (en) * | 1990-12-04 | 1996-12-17 | North American Philips Corporation | Low pressure discharge lamp having sintered "cold cathode" discharge electrodes |
US5847498A (en) * | 1994-12-23 | 1998-12-08 | Philips Electronics North America Corporation | Multiple layer composite electrodes for discharge lamps |
-
1987
- 1987-09-02 JP JP22094587A patent/JP2623094B2/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5585694A (en) * | 1990-12-04 | 1996-12-17 | North American Philips Corporation | Low pressure discharge lamp having sintered "cold cathode" discharge electrodes |
US5847498A (en) * | 1994-12-23 | 1998-12-08 | Philips Electronics North America Corporation | Multiple layer composite electrodes for discharge lamps |
Also Published As
Publication number | Publication date |
---|---|
JP2623094B2 (en) | 1997-06-25 |
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