FR2233707B1 - - Google Patents

Info

Publication number
FR2233707B1
FR2233707B1 FR7420149A FR7420149A FR2233707B1 FR 2233707 B1 FR2233707 B1 FR 2233707B1 FR 7420149 A FR7420149 A FR 7420149A FR 7420149 A FR7420149 A FR 7420149A FR 2233707 B1 FR2233707 B1 FR 2233707B1
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
FR7420149A
Other languages
French (fr)
Other versions
FR2233707A1 (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.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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 Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of FR2233707A1 publication Critical patent/FR2233707A1/fr
Application granted granted Critical
Publication of FR2233707B1 publication Critical patent/FR2233707B1/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
    • H01J61/70—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
FR7420149A 1973-06-14 1974-06-11 Expired FR2233707B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2330391A DE2330391A1 (en) 1973-06-14 1973-06-14 LOW PRESSURE MERCURY VAPOR DISCHARGE LAMP WITH AMALGAM

Publications (2)

Publication Number Publication Date
FR2233707A1 FR2233707A1 (en) 1975-01-10
FR2233707B1 true FR2233707B1 (en) 1977-10-07

Family

ID=5884024

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7420149A Expired FR2233707B1 (en) 1973-06-14 1974-06-11

Country Status (4)

Country Link
US (1) US3890531A (en)
DE (1) DE2330391A1 (en)
FR (1) FR2233707B1 (en)
GB (1) GB1455470A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL168367C (en) * 1975-06-20 1982-03-16 Philips Nv LOW-PRESSURE MERCURY DISCHARGE LAMP AND METHOD FOR THE PRODUCTION THEREOF.
DE3485382D1 (en) * 1983-09-30 1992-02-06 Toshiba Kawasaki Kk METHOD FOR PRODUCING A LOW-MELTING ALLOY FOR SEALING FLUORESCENT LAMPS.
NL8702123A (en) * 1987-09-08 1989-04-03 Philips Nv LOW-PRESSURE MERCURY DISCHARGE LAMP.
US5237240A (en) * 1991-12-04 1993-08-17 Gte Products Corporation Mercury vapor discharge lamp containing device for heating amalgam-forming material
US5412289A (en) * 1993-12-15 1995-05-02 General Electric Company Using a magnetic field to locate an amalgam in an electrodeless fluorescent lamp
US6310437B1 (en) 2000-06-01 2001-10-30 General Electric Company Fluorescent lamp extension tube amalgam holder
US7977858B2 (en) * 2006-07-27 2011-07-12 Koninklijke Philips Electronics N.V. Low-pressure mercury vapor discharge lamp
HUE046633T2 (en) * 2016-07-08 2020-03-30 Xylem Europe Gmbh Uv mercury low-pressure lamp with amalgam deposit

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3007071A (en) * 1958-04-29 1961-10-31 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Low-pressure mercury vapor discharge lamp
NL252546A (en) * 1959-06-12
NL6702109A (en) * 1967-02-11 1968-08-12
DE1937938C3 (en) * 1969-07-25 1980-10-09 Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh, 8000 Muenchen Mercury vapor low pressure discharge lamp with major and minor amalgam

Also Published As

Publication number Publication date
DE2330391A1 (en) 1975-01-09
GB1455470A (en) 1976-11-10
FR2233707A1 (en) 1975-01-10
US3890531A (en) 1975-06-17

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Legal Events

Date Code Title Description
ST Notification of lapse