GB543791A - Improvements in hpmv electric discharge devices - Google Patents

Improvements in hpmv electric discharge devices

Info

Publication number
GB543791A
GB543791A GB1688240A GB1688240A GB543791A GB 543791 A GB543791 A GB 543791A GB 1688240 A GB1688240 A GB 1688240A GB 1688240 A GB1688240 A GB 1688240A GB 543791 A GB543791 A GB 543791A
Authority
GB
United Kingdom
Prior art keywords
hpmv
electric discharge
discharge devices
kettlewell
francis
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
GB1688240A
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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
Priority to BE463969D priority Critical patent/BE463969A/xx
Application filed by General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB1688240A priority patent/GB543791A/en
Publication of GB543791A publication Critical patent/GB543791A/en
Priority to FR922053D priority patent/FR922053A/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
    • H01J61/02—Details
    • H01J61/52—Cooling arrangements; Heating arrangements; Means for circulating gas or vapour within the discharge space
    • H01J61/523—Heating or cooling particular parts of the lamp
    • H01J61/526—Heating or cooling particular parts of the lamp heating or cooling of electrodes

Landscapes

  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Discharge Lamp (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

543,791. Discharge lamps. GENERAL ELECTRIC CO., Ltd., FRANCIS, V. J., and KETTLEWELL, E. Nov. 25, 1940, No. 16882. Drawings to Specification. [Class 39 (i)] In a high-pressure mercury-vapour lamp thermal radiation at the anode is increased by arranging a sleeve of graphitic carbon around the tungsten block forming the electrode.
GB1688240A 1940-11-25 1940-11-25 Improvements in hpmv electric discharge devices Expired GB543791A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE463969D BE463969A (en) 1940-11-25
GB1688240A GB543791A (en) 1940-11-25 1940-11-25 Improvements in hpmv electric discharge devices
FR922053D FR922053A (en) 1940-11-25 1946-02-13 improved electrode for discharge lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1688240A GB543791A (en) 1940-11-25 1940-11-25 Improvements in hpmv electric discharge devices

Publications (1)

Publication Number Publication Date
GB543791A true GB543791A (en) 1942-03-12

Family

ID=10085369

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1688240A Expired GB543791A (en) 1940-11-25 1940-11-25 Improvements in hpmv electric discharge devices

Country Status (3)

Country Link
BE (1) BE463969A (en)
FR (1) FR922053A (en)
GB (1) GB543791A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2562325A1 (en) * 1984-03-29 1985-10-04 Tungsram Reszvenytarsasag LAMP, IN PARTICULAR SODIUM VAPOR LAMP OR HIGH-PRESSURE METAL HALIDE LAMP, FOR USE WITH CONTINUOUS POWER SUPPLY
WO2010069677A1 (en) * 2008-12-17 2010-06-24 Osram Gesellschaft mit beschränkter Haftung Discharge lamp

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL272981A (en) * 1961-01-02

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2562325A1 (en) * 1984-03-29 1985-10-04 Tungsram Reszvenytarsasag LAMP, IN PARTICULAR SODIUM VAPOR LAMP OR HIGH-PRESSURE METAL HALIDE LAMP, FOR USE WITH CONTINUOUS POWER SUPPLY
GB2157882A (en) * 1984-03-29 1985-10-30 Tungsram Reszvenytarsasag High pressure sodium-vapour or metal halide lamp for direct current operation
WO2010069677A1 (en) * 2008-12-17 2010-06-24 Osram Gesellschaft mit beschränkter Haftung Discharge lamp

Also Published As

Publication number Publication date
BE463969A (en)
FR922053A (en) 1947-05-28

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