GB549727A - Improvements in or relating to electric high-pressure metal-vapour discharge tubes - Google Patents

Improvements in or relating to electric high-pressure metal-vapour discharge tubes

Info

Publication number
GB549727A
GB549727A GB14891/41A GB1489141A GB549727A GB 549727 A GB549727 A GB 549727A GB 14891/41 A GB14891/41 A GB 14891/41A GB 1489141 A GB1489141 A GB 1489141A GB 549727 A GB549727 A GB 549727A
Authority
GB
United Kingdom
Prior art keywords
relating
discharge tubes
pressure metal
electric high
vapour 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
GB14891/41A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB549727A publication Critical patent/GB549727A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/02—Details
    • H01J17/22—Means for obtaining or maintaining the desired pressure within the tube
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/04—Electrodes; Screens; Shields
    • H01J61/06—Main electrodes
    • H01J61/073—Main electrodes for high-pressure discharge lamps
    • H01J61/0732—Main electrodes for high-pressure discharge lamps characterised by the construction of the electrode

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Discharge Lamp (AREA)

Abstract

549,727. Metal-vapour lamps. PHILIPS LAMPS, Ltd (Naamlooze Vennootschap Philips'- Gloeilampenfabrieken): Nov. 19, 1941; No. 14891. Drawings to Specification. [Class 39 (i)] The subject-matter of this Specification is identical with that of Specification 616,808, [Group XL(a)].
GB14891/41A 1940-08-10 1941-11-19 Improvements in or relating to electric high-pressure metal-vapour discharge tubes Expired GB549727A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL616808X 1940-08-10

Publications (1)

Publication Number Publication Date
GB549727A true GB549727A (en) 1942-12-03

Family

ID=19788294

Family Applications (2)

Application Number Title Priority Date Filing Date
GB14891/41A Expired GB549727A (en) 1940-08-10 1941-11-19 Improvements in or relating to electric high-pressure metal-vapour discharge tubes
GB31761/45A Expired GB616808A (en) 1940-08-10 1945-11-24 Improvements in or relating to electric high-pressure metal-vapour discharge tubes

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB31761/45A Expired GB616808A (en) 1940-08-10 1945-11-24 Improvements in or relating to electric high-pressure metal-vapour discharge tubes

Country Status (5)

Country Link
BE (1) BE442425A (en)
DE (1) DE848673C (en)
FR (1) FR875403A (en)
GB (2) GB549727A (en)
NL (1) NL58863C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010069677A1 (en) * 2008-12-17 2010-06-24 Osram Gesellschaft mit beschränkter Haftung Discharge lamp

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1018164B (en) * 1952-12-04 1957-10-24 Siemens Ag Gas discharge tubes
DE102008062677A1 (en) * 2008-12-17 2010-06-24 Osram Gesellschaft mit beschränkter Haftung discharge lamp
DE102011006282A1 (en) * 2011-03-29 2012-10-04 Zf Friedrichshafen Ag An electric machine having a rotor shaft supporting a rotor for a vehicle driveline

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT139320B (en) * 1931-12-18 1934-11-10 Siemens Ag Glow discharge tube with gas or vapor filling.
US2056665A (en) * 1934-08-18 1936-10-06 Gen Electric Vapor electric discharge device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010069677A1 (en) * 2008-12-17 2010-06-24 Osram Gesellschaft mit beschränkter Haftung Discharge lamp
CN102257595A (en) * 2008-12-17 2011-11-23 奥斯兰姆有限公司 Discharge lamp
CN102257595B (en) * 2008-12-17 2015-09-09 奥斯兰姆有限公司 Discharge lamp

Also Published As

Publication number Publication date
FR875403A (en) 1942-09-21
DE848673C (en) 1952-09-08
NL58863C (en)
BE442425A (en)
GB616808A (en) 1949-01-27

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