FR1572848A - - Google Patents

Info

Publication number
FR1572848A
FR1572848A FR1572848DA FR1572848A FR 1572848 A FR1572848 A FR 1572848A FR 1572848D A FR1572848D A FR 1572848DA FR 1572848 A FR1572848 A FR 1572848A
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
Other languages
French (fr)
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 filed Critical
Application granted granted Critical
Publication of FR1572848A publication Critical patent/FR1572848A/fr
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
    • H01J61/02—Details
    • H01J61/24—Means for obtaining or maintaining the desired pressure within the vessel
    • 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
    • H01J61/74—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr having a main light-emitting filling of difficult vaporisable metal vapour, e.g. sodium
FR1572848D 1967-07-10 1968-07-10 Expired FR1572848A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6709573A NL6709573A (xx) 1967-07-10 1967-07-10

Publications (1)

Publication Number Publication Date
FR1572848A true FR1572848A (xx) 1969-06-27

Family

ID=19800674

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1572848D Expired FR1572848A (xx) 1967-07-10 1968-07-10

Country Status (8)

Country Link
US (1) US3548240A (xx)
AT (1) AT280419B (xx)
BE (1) BE717798A (xx)
CH (1) CH485319A (xx)
ES (1) ES355868A1 (xx)
FR (1) FR1572848A (xx)
GB (1) GB1199535A (xx)
NL (1) NL6709573A (xx)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3784863A (en) * 1973-01-11 1974-01-08 Thorn Electrical Ind Ltd Vapour discharge lamps
NL7906203A (nl) * 1979-08-15 1981-02-17 Philips Nv Lagedrukkwikdampontladingslamp.
US4835442A (en) * 1987-01-29 1989-05-30 Kabushiki Kaisha Toshiba Lamp for generating ultraviolet radiation
EP3262343B1 (en) 2015-02-26 2018-09-05 Philips Lighting Holding B.V. Lighting device with dispenser for a reactive substance

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2103039A (en) * 1929-07-10 1937-12-21 Gen Electric Gaseous electric discharge device
DE684934C (de) * 1936-12-05 1939-12-08 Quarzlampen Gmbh Elektrische Metalldampfbogenlampe mit festen, zu hoher Elektronenemission aktivierten Elektroden und einem Vorratsbehaelter fuer das zu verdampfende Metall
US3331977A (en) * 1965-03-15 1967-07-18 Westinghouse Electric Corp High output discharge lamp with vapor pressure control means

Also Published As

Publication number Publication date
DE1764615A1 (de) 1971-09-09
BE717798A (xx) 1969-01-08
GB1199535A (en) 1970-07-22
US3548240A (en) 1970-12-15
DE1764615B2 (de) 1976-07-29
AT280419B (de) 1970-04-10
CH485319A (de) 1970-01-31
ES355868A1 (es) 1970-03-16
NL6709573A (xx) 1969-01-14

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Legal Events

Date Code Title Description
ST Notification of lapse