GB2076218B - Discharge lamps - Google Patents

Discharge lamps

Info

Publication number
GB2076218B
GB2076218B GB8114587A GB8114587A GB2076218B GB 2076218 B GB2076218 B GB 2076218B GB 8114587 A GB8114587 A GB 8114587A GB 8114587 A GB8114587 A GB 8114587A GB 2076218 B GB2076218 B GB 2076218B
Authority
GB
United Kingdom
Prior art keywords
discharge lamps
lamps
discharge
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.)
Expired
Application number
GB8114587A
Other versions
GB2076218A (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.)
Ushio Denki KK
Original Assignee
Ushio Denki KK
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 Ushio Denki KK filed Critical Ushio Denki KK
Publication of GB2076218A publication Critical patent/GB2076218A/en
Application granted granted Critical
Publication of GB2076218B publication Critical patent/GB2076218B/en
Expired 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
    • H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
    • H01J61/72—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr having a main light-emitting filling of easily vaporisable metal vapour, e.g. mercury
    • 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
GB8114587A 1980-05-15 1981-05-13 Discharge lamps Expired GB2076218B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6342280A JPS56160755A (en) 1980-05-15 1980-05-15 Discharge lamp

Publications (2)

Publication Number Publication Date
GB2076218A GB2076218A (en) 1981-11-25
GB2076218B true GB2076218B (en) 1984-05-31

Family

ID=13228828

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8114587A Expired GB2076218B (en) 1980-05-15 1981-05-13 Discharge lamps

Country Status (5)

Country Link
JP (1) JPS56160755A (en)
CA (1) CA1162593A (en)
DE (1) DE3119223C2 (en)
FR (1) FR2482781A1 (en)
GB (1) GB2076218B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2169440B (en) * 1984-12-14 1989-08-16 Matsushita Electric Works Ltd High pressure discharge lamp
US4835442A (en) * 1987-01-29 1989-05-30 Kabushiki Kaisha Toshiba Lamp for generating ultraviolet radiation
US4952844A (en) * 1988-12-27 1990-08-28 Gte Products Corporation Electronic ballast circuit for discharge lamp
US5107183A (en) * 1989-10-16 1992-04-21 Minipilo Electric Co., Ltd. Discharging method and small fluorescent lamp using the discharging method
US6756745B1 (en) * 2003-03-27 2004-06-29 Tieng-Fu Lin Four-electrode fluorescent lamp and the circuit for arranging the same
US7358677B2 (en) * 2003-07-29 2008-04-15 Koninklijke Philips Electronics, N.V. Low-pressure mercury vapor discharge lamp having determined probability of failure
WO2005109468A1 (en) * 2004-05-11 2005-11-17 Koninklijke Philips Electronics N.V. Low-pressure mercury vapor discharge lamp and display device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL48627C (en) * 1936-11-24
DE676424C (en) * 1936-11-25 1939-06-03 Patra Patent Treuhand Electric high pressure metal vapor discharge lamp, in particular for projection purposes
US2264081A (en) * 1940-03-07 1941-11-25 Gen Electric Gaseous discharge lamp
FR1320547A (en) * 1962-04-25 1963-03-08 Thomson Houston Comp Francaise Ballast circuit for gas discharge lamps
DE1194053B (en) * 1962-07-16 1965-06-03 Berliner Gluehlampenwerk Veb High and high pressure gas discharge lamp high power for alternating current
NL7503824A (en) * 1975-04-01 1976-10-05 Philips Nv FURNISHINGS WITH A LAMP.
US4097777A (en) * 1976-11-10 1978-06-27 General Electric Company Arc discharge lamp including starting circuit

Also Published As

Publication number Publication date
GB2076218A (en) 1981-11-25
DE3119223C2 (en) 1984-03-15
CA1162593A (en) 1984-02-21
FR2482781A1 (en) 1981-11-20
JPS56160755A (en) 1981-12-10
DE3119223A1 (en) 1982-02-11

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930513