GB539691A - Improvements in and relating to electric discharge devices - Google Patents

Improvements in and relating to electric discharge devices

Info

Publication number
GB539691A
GB539691A GB10668/40A GB1066840A GB539691A GB 539691 A GB539691 A GB 539691A GB 10668/40 A GB10668/40 A GB 10668/40A GB 1066840 A GB1066840 A GB 1066840A GB 539691 A GB539691 A GB 539691A
Authority
GB
United Kingdom
Prior art keywords
quartz
lamp
june
electrodes
plugs
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
GB10668/40A
Other languages
English (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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co Ltd
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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB539691A publication Critical patent/GB539691A/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
    • H01J61/82—Lamps with high-pressure unconstricted discharge having a cold pressure > 400 Torr

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Discharge Lamp (AREA)
GB10668/40A 1939-06-21 1940-06-21 Improvements in and relating to electric discharge devices Expired GB539691A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US280334A US2241968A (en) 1939-06-21 1939-06-21 Light source

Publications (1)

Publication Number Publication Date
GB539691A true GB539691A (en) 1941-09-19

Family

ID=23072641

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10668/40A Expired GB539691A (en) 1939-06-21 1940-06-21 Improvements in and relating to electric discharge devices

Country Status (3)

Country Link
US (1) US2241968A (fr)
FR (1) FR866729A (fr)
GB (1) GB539691A (fr)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2456854A (en) * 1943-06-19 1948-12-21 Westinghouse Electric Corp High-pressure modulator tube
US2432051A (en) * 1944-05-19 1947-12-02 Vang Alfred Mercury tube and circuit therefor
NL144070C (fr) * 1948-02-27
US2774013A (en) * 1949-04-07 1956-12-11 Gen Electric Electric discharge lamp
US2625671A (en) * 1949-07-19 1953-01-13 Krefft Hermann Eduard Electrical discharge lamp
US2675496A (en) * 1949-08-31 1954-04-13 Westinghouse Electric Corp High-pressure discharge lamp and seal therefor
GB676143A (en) * 1950-03-03 1952-07-23 British Thomson Houston Co Ltd Improvements in electric discharge lamps
US2728877A (en) * 1951-06-19 1955-12-27 Heinz F Fischer Apparatus for obtaining extremely high temperatures
US2900552A (en) * 1955-05-19 1959-08-18 Willis A Pennow Gaseous electric discharge lamp
US2974249A (en) * 1958-01-28 1961-03-07 Duro Test Corp Xenon short arc lamps
GB950475A (en) * 1958-11-19 1964-02-26 Ass Elect Ind Improvements in electric discharge lamps
NL269416A (fr) * 1960-09-21
US3304457A (en) * 1961-09-21 1967-02-14 Trw Inc High intensity light source
US3515935A (en) * 1967-05-31 1970-06-02 Us Navy Triggered spark transmitter device
US3581140A (en) * 1968-06-11 1971-05-25 Varo High intensity light source with integral radiant-energy-coupling apparatus
JPS4810585B1 (fr) * 1968-06-29 1973-04-04
NL150618C (fr) * 1970-04-03
US3780328A (en) * 1971-12-30 1973-12-18 Electronic Control & Surveilla Lighting unit for use underwater and in wet environment
WO1984005006A1 (fr) * 1983-06-03 1984-12-20 Gravure Res Inst Systeme de gravure a ecran pour machines a graver electromecaniqus
US4770310A (en) * 1983-07-05 1988-09-13 Futaba Denshi Kogyo K.K. Casing for display device
US4877991A (en) * 1987-12-21 1989-10-31 Colterjohn Jr Walter L Optical radiation source

Also Published As

Publication number Publication date
FR866729A (fr) 1941-08-30
US2241968A (en) 1941-05-13

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