JPS5721059A - Electrode for discharge lamp - Google Patents

Electrode for discharge lamp

Info

Publication number
JPS5721059A
JPS5721059A JP9553980A JP9553980A JPS5721059A JP S5721059 A JPS5721059 A JP S5721059A JP 9553980 A JP9553980 A JP 9553980A JP 9553980 A JP9553980 A JP 9553980A JP S5721059 A JPS5721059 A JP S5721059A
Authority
JP
Japan
Prior art keywords
emitter
ring
electrode
stopper ring
discharge lamp
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
JP9553980A
Other languages
Japanese (ja)
Inventor
Hiroshi Sugiyama
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP9553980A priority Critical patent/JPS5721059A/en
Publication of JPS5721059A publication Critical patent/JPS5721059A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/04—Electrodes; Screens; Shields
    • H01J61/06—Main electrodes
    • H01J61/067—Main electrodes for low-pressure discharge lamps

Landscapes

  • Discharge Lamp (AREA)

Abstract

PURPOSE:To prevent the occurrence of crack in an emitter by depressing the surface of an emitter mounted in a metal pot then pressure contacting a stopper ring on its surface. CONSTITUTION:A stopper ring 4 equipped with a plurality of needle members 42 projecting toward the central portion at the inside of a ring section 41 is pressure contacted on the surface of an emitter 2 mounted in a metal pot 1. The surface of the emitter 2 is depressed except the circumference. The stopper ring 4 is pressure contacted such that the ring section 41 is place along the circumferential face of the emitter 2 while the needle section 42 is placed along the depressed face of the emitter 2.
JP9553980A 1980-07-12 1980-07-12 Electrode for discharge lamp Pending JPS5721059A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9553980A JPS5721059A (en) 1980-07-12 1980-07-12 Electrode for discharge lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9553980A JPS5721059A (en) 1980-07-12 1980-07-12 Electrode for discharge lamp

Publications (1)

Publication Number Publication Date
JPS5721059A true JPS5721059A (en) 1982-02-03

Family

ID=14140361

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9553980A Pending JPS5721059A (en) 1980-07-12 1980-07-12 Electrode for discharge lamp

Country Status (1)

Country Link
JP (1) JPS5721059A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999034402A1 (en) * 1997-12-26 1999-07-08 Toshiba Lighting & Technology Corporation Electrode structure for electron emission, discharge lamp, and discharge lamp apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999034402A1 (en) * 1997-12-26 1999-07-08 Toshiba Lighting & Technology Corporation Electrode structure for electron emission, discharge lamp, and discharge lamp apparatus
EP0964429A1 (en) * 1997-12-26 1999-12-15 Toshiba Lighting & Technology Corporation Electrode structure for electron emission, discharge lamp, and discharge lamp apparatus
EP0964429A4 (en) * 1997-12-26 2001-03-21 Toshiba Lighting & Technology Electrode structure for electron emission, discharge lamp, and discharge lamp apparatus

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