FR2298882A1 - Three-phase gas discharge lamp - has four main electrodes forming three subsequent axial discharge paths - Google Patents

Three-phase gas discharge lamp - has four main electrodes forming three subsequent axial discharge paths

Info

Publication number
FR2298882A1
FR2298882A1 FR7531180A FR7531180A FR2298882A1 FR 2298882 A1 FR2298882 A1 FR 2298882A1 FR 7531180 A FR7531180 A FR 7531180A FR 7531180 A FR7531180 A FR 7531180A FR 2298882 A1 FR2298882 A1 FR 2298882A1
Authority
FR
France
Prior art keywords
main electrodes
discharge paths
phase gas
electrodes forming
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.)
Granted
Application number
FR7531180A
Other languages
French (fr)
Other versions
FR2298882B1 (en
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of FR2298882A1 publication Critical patent/FR2298882A1/en
Application granted granted Critical
Publication of FR2298882B1 publication Critical patent/FR2298882B1/fr
Granted 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
    • H01J61/92—Lamps with more than one main discharge path

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

The three-phase gas discharge lamp has a bulb filled with a rare gas, or such gas combined with metal vapours or metal halides, and containing main electrodes forming three discharge paths and provided with appropriate current leads. The four main electrodes (2) form three discharge paths, arranged sequentially along the axis of the bulb. The sequentially arranged discharge paths are of identical length. An ignition electrode (4) may be fitted in close proximity of one of the four main electrodes. The current leads (3) of the four main electrodes are arranged in pairs. The current leads of distant electrodes are connected to the same via busbars with an insulating sleeve.
FR7531180A 1975-01-21 1975-10-10 Three-phase gas discharge lamp - has four main electrodes forming three subsequent axial discharge paths Granted FR2298882A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU7502099803A SU577588A2 (en) 1975-01-21 1975-01-21 Three-phase gas-discharge lamp

Publications (2)

Publication Number Publication Date
FR2298882A1 true FR2298882A1 (en) 1976-08-20
FR2298882B1 FR2298882B1 (en) 1978-04-07

Family

ID=20608377

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7531180A Granted FR2298882A1 (en) 1975-01-21 1975-10-10 Three-phase gas discharge lamp - has four main electrodes forming three subsequent axial discharge paths

Country Status (6)

Country Link
JP (1) JPS5252489A (en)
DE (1) DE2542133C2 (en)
FI (1) FI63132C (en)
FR (1) FR2298882A1 (en)
NL (1) NL163940C (en)
SU (1) SU577588A2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0913856A1 (en) * 1997-10-31 1999-05-06 Nec Corporation Cold cathode fluorescent lamp and back-light emitting device and note-type personal computer with said lamp
WO2001049076A2 (en) * 1999-12-28 2001-07-05 Honeywell Inc. Partitioned flat fluorescent lamp

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR959659A (en) * 1950-03-31
US1958239A (en) * 1931-04-13 1934-05-08 Gen Electric Positive column discharge device
DE564235C (en) * 1931-05-16 1932-11-17 Patra Patent Treuhand Electric light tubes with glowing main electrodes
FR978563A (en) * 1948-11-19 1951-04-16 Improvements to fluorescent tubes
DE906243C (en) * 1949-07-19 1954-03-11 Dr Hermann E Krefft Electric metal vapor and noble gas high pressure discharge lamps equipped with fixed glow electrodes and procedures for their operation

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0913856A1 (en) * 1997-10-31 1999-05-06 Nec Corporation Cold cathode fluorescent lamp and back-light emitting device and note-type personal computer with said lamp
US6268694B1 (en) 1997-10-31 2001-07-31 Nec Corporation Cold cathode fluorescent lamp, back-light emitting device with the cold cathode fluorescent lamp and note-type personal computer with the back-light emitting device
US6538373B2 (en) 1997-10-31 2003-03-25 Nec Corporation Cold cathode fluorescent lamp, back-light emitting device with the cold cathode fluorescent lamp, and note-type personal computer with the back-light emitting device
WO2001049076A2 (en) * 1999-12-28 2001-07-05 Honeywell Inc. Partitioned flat fluorescent lamp
WO2001049076A3 (en) * 1999-12-28 2001-12-06 Honeywell Inc Partitioned flat fluorescent lamp
US6876139B1 (en) 1999-12-28 2005-04-05 Honeywell International Inc. Partitioned flat fluorescent lamp

Also Published As

Publication number Publication date
NL163940C (en) 1980-10-15
FI63132B (en) 1982-12-31
JPS5252489A (en) 1977-04-27
NL163940B (en) 1980-05-16
DE2542133A1 (en) 1976-07-22
NL7511326A (en) 1976-07-23
SU577588A2 (en) 1977-10-25
JPS5633822B2 (en) 1981-08-06
FR2298882B1 (en) 1978-04-07
FI752584A (en) 1976-07-22
FI63132C (en) 1983-04-11
DE2542133C2 (en) 1983-09-15

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Legal Events

Date Code Title Description
ST Notification of lapse