FR978747A - Further development in the manufacture of low pressure discharge lamps - Google Patents

Further development in the manufacture of low pressure discharge lamps

Info

Publication number
FR978747A
FR978747A FR978747DA FR978747A FR 978747 A FR978747 A FR 978747A FR 978747D A FR978747D A FR 978747DA FR 978747 A FR978747 A FR 978747A
Authority
FR
France
Prior art keywords
manufacture
low pressure
further development
pressure discharge
discharge lamps
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
Other languages
French (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.)
Compagnie des Lampes
Original Assignee
Compagnie des Lampes
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 Compagnie des Lampes filed Critical Compagnie des Lampes
Application granted granted Critical
Publication of FR978747A publication Critical patent/FR978747A/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
FR978747D 1948-01-09 1949-01-07 Further development in the manufacture of low pressure discharge lamps Expired FR978747A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1454A US2473642A (en) 1948-01-09 1948-01-09 Low-pressure electric discharge device

Publications (1)

Publication Number Publication Date
FR978747A true FR978747A (en) 1951-04-17

Family

ID=21696100

Family Applications (1)

Application Number Title Priority Date Filing Date
FR978747D Expired FR978747A (en) 1948-01-09 1949-01-07 Further development in the manufacture of low pressure discharge lamps

Country Status (3)

Country Link
US (1) US2473642A (en)
CH (1) CH271514A (en)
FR (1) FR978747A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2673942A (en) * 1948-10-26 1954-03-30 Gen Electric Starting circuit for electric lamps
BE496584A (en) * 1949-06-29
US2671184A (en) * 1949-12-01 1954-03-02 Gen Electric Flashing discharge device
US2714685A (en) * 1951-08-25 1955-08-02 Westinghouse Electric Corp Low pressure fluorescent and discharge lamps
US2714682A (en) * 1952-06-27 1955-08-02 Westinghouse Electric Corp Low pressure fluorescent and discharge lamps
US2802129A (en) * 1952-08-21 1957-08-06 Westinghouse Electric Corp Low pressure fluorescent and discharge lamps
DE957877C (en) * 1953-07-07 1957-01-17 Muralto Locarno Tessin Dr. med. Federico Wehrli (Schweiz) Device for treating blood, blood plasma or the like with oxygen and optionally with ultraviolet light
US2800600A (en) * 1953-09-14 1957-07-23 James E Drennan Glow discharge tube
US3778662A (en) * 1972-10-31 1973-12-11 Gen Electric High intensity fluorescent lamp radiating ionic radiation within the range of 1,600{14 2,300 a.u.
US4935664A (en) * 1988-09-20 1990-06-19 Gte Products Corporation Diffuse discharge lamp
US4994705A (en) * 1989-03-27 1991-02-19 Hughes Aircraft Company Water-cooled, low pressure gas discharge lamp
RU2497227C2 (en) * 2012-01-27 2013-10-27 Виктор Александрович Долгих Generation method of emission on resonant junctions of atoms of metals

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR743168A (en) * 1931-12-26 1933-03-25
US2195517A (en) * 1935-10-12 1940-04-02 Gen Electric Gaseous electric discharge device
US2177710A (en) * 1938-04-22 1939-10-31 Gen Electric Fluorescent sign lamp
US2255431A (en) * 1939-10-21 1941-09-09 Westinghouse Electric & Mfg Co Molded fluorescent lamp

Also Published As

Publication number Publication date
US2473642A (en) 1949-06-21
CH271514A (en) 1950-10-31

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