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EP0361357A3 - Discharge lamp - Google Patents

Discharge lamp Download PDF

Info

Publication number
EP0361357A3
EP0361357A3 EP19890117658 EP89117658A EP0361357A3 EP 0361357 A3 EP0361357 A3 EP 0361357A3 EP 19890117658 EP19890117658 EP 19890117658 EP 89117658 A EP89117658 A EP 89117658A EP 0361357 A3 EP0361357 A3 EP 0361357A3
Authority
EP
European Patent Office
Prior art keywords
electrodes
discharge
side electrode
voltage
pair
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
Application number
EP19890117658
Other languages
German (de)
French (fr)
Other versions
EP0361357B1 (en
EP0361357A2 (en
Inventor
Hajime Minamigata
Kiyoshi Yagi
Seiichi Wakabayashi
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.)
Yazaki Corp
Original Assignee
Yazaki 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
Priority claimed from JP19047889A external-priority patent/JPH02168588A/en
Application filed by Yazaki Corp filed Critical Yazaki Corp
Publication of EP0361357A2 publication Critical patent/EP0361357A2/en
Publication of EP0361357A3 publication Critical patent/EP0361357A3/en
Application granted granted Critical
Publication of EP0361357B1 publication Critical patent/EP0361357B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/02—Details
    • H01J17/04—Electrodes; Screens
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/38—Cold-cathode tubes
    • H01J17/40—Cold-cathode tubes with one cathode and one anode, e.g. glow tubes, tuning-indicator glow tubes, voltage-stabiliser tubes, voltage-indicator tubes

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Gas-Filled Discharge Tubes (AREA)
  • Lasers (AREA)

Abstract

A discharge tube of the type wherein a voltage is applied across a pair of electrodes to cause a discharge between the anode side electrode and the cathode side electrode. In the new discharge tube, opposing end portions of said pair of electrodes are formed into a non-acute configuration, and a large number of concave or convex portions are formed on a surface at least of said cathode side electrode. A stabilized high discharge voltage can be obtained from an initial stage of discharging with a comparatively small distance between the electrodes. Further, since the surface area of the electrodes is great, exhaustion of the electrodes are dispersed, and the electrodes are superior in durability. Further, since the distance between the electrodes is small, the discharge maintaining voltage is low and the energy loss is decreased.
EP89117658A 1988-09-27 1989-09-25 Discharge lamp Expired - Lifetime EP0361357B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP23963988 1988-09-27
JP239639/88 1988-09-27
JP19048/89 1989-07-25
JP19047889A JPH02168588A (en) 1988-09-27 1989-07-25 discharge tube

Publications (3)

Publication Number Publication Date
EP0361357A2 EP0361357A2 (en) 1990-04-04
EP0361357A3 true EP0361357A3 (en) 1990-10-03
EP0361357B1 EP0361357B1 (en) 1996-12-18

Family

ID=26506113

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89117658A Expired - Lifetime EP0361357B1 (en) 1988-09-27 1989-09-25 Discharge lamp

Country Status (2)

Country Link
EP (1) EP0361357B1 (en)
DE (1) DE68927568T2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0322388U (en) * 1989-07-14 1991-03-07
JPH0431292U (en) * 1990-07-11 1992-03-13
US8963409B2 (en) 2011-02-02 2015-02-24 Kondo Electric Co., Ltd. Discharge element and method of manufacturing the same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2720474A (en) * 1952-09-13 1955-10-11 Raytheon Mfg Co Coated electrodes for electron discharge devices
US3270232A (en) * 1961-07-10 1966-08-30 Gen Electric Gaseous discharge device with shield for directly heated cathode
EP0048407A1 (en) * 1980-09-22 1982-03-31 Kraftwerk Union Aktiengesellschaft High-energy TEA laser with ionizing rods arranged parallel to the laser axis
US4493003A (en) * 1983-01-28 1985-01-08 Gte Products Corporation Surge arrester assembly

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2720474A (en) * 1952-09-13 1955-10-11 Raytheon Mfg Co Coated electrodes for electron discharge devices
US3270232A (en) * 1961-07-10 1966-08-30 Gen Electric Gaseous discharge device with shield for directly heated cathode
EP0048407A1 (en) * 1980-09-22 1982-03-31 Kraftwerk Union Aktiengesellschaft High-energy TEA laser with ionizing rods arranged parallel to the laser axis
US4493003A (en) * 1983-01-28 1985-01-08 Gte Products Corporation Surge arrester assembly

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
INSTRUMENTS AND EXPERIMENTAL TECHNIQUES. vol. 30, no. 2, April 1987, NEW YORK US pages 346 - 349; V S Bosamykin et al.: "Reliable, precisely synchronised 100-keV discharger" *
JOURNAL OF APPLIED PHYSICS. vol. 37, 1966, NEW YORK US pages 1935 - 1937; H M Musal Jr.: "An inverse brush cathode for the negative-glow plasma source" *

Also Published As

Publication number Publication date
DE68927568T2 (en) 1997-04-17
EP0361357B1 (en) 1996-12-18
DE68927568D1 (en) 1997-01-30
EP0361357A2 (en) 1990-04-04

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