JPS6463258A - Cold cathode type discharge lamp device - Google Patents

Cold cathode type discharge lamp device

Info

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
Application number
JP22095087A
Other languages
Japanese (ja)
Inventor
Munemitsu Hamada
Hitoshi Masumura
Shoichi Iwatani
Haruo Taguchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TDK Corp
Original Assignee
TDK Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by TDK Corp filed Critical TDK Corp
Priority to JP22095087A priority Critical patent/JPS6463258A/en
Publication of JPS6463258A publication Critical patent/JPS6463258A/en
Pending legal-status Critical Current

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.
JP22095087A 1987-09-02 1987-09-02 Cold cathode type discharge lamp device Pending JPS6463258A (en)

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)

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