FR2274139B1 - - Google Patents

Info

Publication number
FR2274139B1
FR2274139B1 FR7517960A FR7517960A FR2274139B1 FR 2274139 B1 FR2274139 B1 FR 2274139B1 FR 7517960 A FR7517960 A FR 7517960A FR 7517960 A FR7517960 A FR 7517960A FR 2274139 B1 FR2274139 B1 FR 2274139B1
Authority
FR
France
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
FR7517960A
Other languages
French (fr)
Other versions
FR2274139A1 (fr
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.)
EMI Group Ltd
Original Assignee
Thorn Electrical Industries 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 Thorn Electrical Industries Ltd filed Critical Thorn Electrical Industries Ltd
Publication of FR2274139A1 publication Critical patent/FR2274139A1/fr
Application granted granted Critical
Publication of FR2274139B1 publication Critical patent/FR2274139B1/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
    • H01J61/02—Details
    • H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/82—Lamps with high-pressure unconstricted discharge having a cold pressure > 400 Torr
    • H01J61/827—Metal halide arc lamps
FR7517960A 1974-06-07 1975-06-09 Lampe a decharge contenant un gaz inerte et un halogenure metallique Granted FR2274139A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB25471/74A GB1502612A (en) 1974-06-07 1974-06-07 Discharge lamps containing an inert gas and a metal halid

Publications (2)

Publication Number Publication Date
FR2274139A1 FR2274139A1 (fr) 1976-01-02
FR2274139B1 true FR2274139B1 (it) 1979-06-22

Family

ID=10228252

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7517960A Granted FR2274139A1 (fr) 1974-06-07 1975-06-09 Lampe a decharge contenant un gaz inerte et un halogenure metallique

Country Status (9)

Country Link
JP (1) JPS5110682A (it)
AU (1) AU501780B2 (it)
CA (1) CA1037097A (it)
DE (1) DE2525408C3 (it)
FR (1) FR2274139A1 (it)
GB (1) GB1502612A (it)
IT (1) IT1038753B (it)
NL (1) NL7506708A (it)
ZA (1) ZA753665B (it)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6653801B1 (en) 1979-11-06 2003-11-25 Matsushita Electric Industrial Co., Ltd. Mercury-free metal-halide lamp
JPS5691368A (en) * 1979-12-24 1981-07-24 Toshiba Corp Metal halide lamp
US4783615A (en) * 1985-06-26 1988-11-08 General Electric Company Electrodeless high pressure sodium iodide arc lamp
KR100382698B1 (ko) * 1997-08-05 2003-05-09 파텐트-트로이한트-게젤샤프트 퓌어 엘렉트리쉐 글뤼람펜 엠베하 직류 전류 금속 할로겐 아크 램프를 동작시키기 위한 방법및 이에 대한 회로
KR20010024584A (ko) * 1998-09-16 2001-03-26 모리시타 요이찌 무수은 메탈할라이드램프
US7825598B2 (en) 2004-12-20 2010-11-02 General Electric Company Mercury-free discharge compositions and lamps incorporating Titanium, Zirconium, and Hafnium
US7847484B2 (en) 2004-12-20 2010-12-07 General Electric Company Mercury-free and sodium-free compositions and radiation source incorporating same
US7928669B2 (en) 2008-02-08 2011-04-19 General Electric Company Color control of a discharge lamp during dimming

Also Published As

Publication number Publication date
ZA753665B (en) 1976-05-26
NL7506708A (nl) 1975-12-09
DE2525408B2 (de) 1979-06-21
FR2274139A1 (fr) 1976-01-02
CA1037097A (en) 1978-08-22
DE2525408C3 (de) 1980-02-28
AU501780B2 (en) 1979-06-28
IT1038753B (it) 1979-11-30
AU8185375A (en) 1976-12-09
GB1502612A (en) 1978-03-01
JPS5110682A (it) 1976-01-28
DE2525408A1 (de) 1975-12-18

Similar Documents

Publication Publication Date Title
DK104475A (it)
FR2265909A1 (it)
FR2287466B1 (it)
FR2274139B1 (it)
FR2263025A1 (it)
FR2262526A1 (it)
FR2288335B1 (it)
FR2288565B1 (it)
FR2270228B2 (it)
AU495920B2 (it)
AU7138274A (it)
AU7099174A (it)
CS174474B1 (it)
AU482332A (it)
BG22484A1 (it)
AU482019A (it)
AU482110A (it)
BG20159A1 (it)
BG19828A1 (it)
BG19873A1 (it)
AU481457A (it)
BG19954A1 (it)
BG19982A1 (it)
BG21285A1 (it)
CH601620A5 (it)

Legal Events

Date Code Title Description
ST Notification of lapse