GB1444023A - Electric discharge lamps - Google Patents

Electric discharge lamps

Info

Publication number
GB1444023A
GB1444023A GB346973A GB346973A GB1444023A GB 1444023 A GB1444023 A GB 1444023A GB 346973 A GB346973 A GB 346973A GB 346973 A GB346973 A GB 346973A GB 1444023 A GB1444023 A GB 1444023A
Authority
GB
United Kingdom
Prior art keywords
halide
lamps
metal
jan
sodium
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
GB346973A
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.)
Thorn Electrical Industries Ltd
Original Assignee
Thorn Electrical Industries 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 Thorn Electrical Industries Ltd filed Critical Thorn Electrical Industries Ltd
Priority to GB346973A priority Critical patent/GB1444023A/en
Priority to CA190,463A priority patent/CA988988A/en
Priority to IE115/74A priority patent/IE38771B1/xx
Priority to ZA740411A priority patent/ZA74411B/xx
Priority to LU69211A priority patent/LU69211A1/xx
Priority to US434927A priority patent/US3867664A/en
Priority to DE2402760A priority patent/DE2402760C3/de
Priority to SE7400810A priority patent/SE383228B/xx
Priority to BE140068A priority patent/BE810033A/xx
Priority to JP49009062A priority patent/JPS5837662B2/ja
Priority to FR7402283A priority patent/FR2214968B1/fr
Priority to NLAANVRAGE7400944,A priority patent/NL182925C/xx
Priority to DK36374AA priority patent/DK138969B/da
Priority to AU64819/74A priority patent/AU484337B2/en
Priority to IT19697/74A priority patent/IT1003493B/it
Publication of GB1444023A publication Critical patent/GB1444023A/en
Priority to US05/965,278 priority patent/USRE30831E/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
    • H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
    • H01J61/18—Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent

Landscapes

  • Discharge Lamp (AREA)
GB346973A 1973-01-23 1973-01-23 Electric discharge lamps Expired GB1444023A (en)

Priority Applications (16)

Application Number Priority Date Filing Date Title
GB346973A GB1444023A (en) 1973-01-23 1973-01-23 Electric discharge lamps
CA190,463A CA988988A (en) 1973-01-23 1974-01-18 Electric discharge devices
IE115/74A IE38771B1 (en) 1973-01-23 1974-01-18 Improvements in electric discharge devices
ZA740411A ZA74411B (en) 1973-01-23 1974-01-21 Improvements in electric discharge devices
LU69211A LU69211A1 (de) 1973-01-23 1974-01-21
US434927A US3867664A (en) 1973-01-23 1974-01-21 Electric discharge devices
SE7400810A SE383228B (sv) 1973-01-23 1974-01-22 Elektrisk hogtrycksurladdningslampa.
DE2402760A DE2402760C3 (de) 1973-01-23 1974-01-22 Hochdruck-Entladungslampe
BE140068A BE810033A (fr) 1973-01-23 1974-01-22 Perfectionnements relatifs a des dispositifs electriques a decharge
JP49009062A JPS5837662B2 (ja) 1973-01-23 1974-01-22 コウアツホウデントウ
FR7402283A FR2214968B1 (de) 1973-01-23 1974-01-23
NLAANVRAGE7400944,A NL182925C (nl) 1973-01-23 1974-01-23 Hogedruk metaaldamp-ontladingslamp.
DK36374AA DK138969B (da) 1973-01-23 1974-01-23 Elektrisk højtryksudladningslampe.
AU64819/74A AU484337B2 (en) 1973-01-23 1974-01-23 Improvements in electric discharge devices
IT19697/74A IT1003493B (it) 1973-01-23 1974-01-23 Dispositivo elettrico a scarica
US05/965,278 USRE30831E (en) 1973-01-23 1978-12-01 Electric discharge devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB346973A GB1444023A (en) 1973-01-23 1973-01-23 Electric discharge lamps

Publications (1)

Publication Number Publication Date
GB1444023A true GB1444023A (en) 1976-07-28

Family

ID=9758912

Family Applications (1)

Application Number Title Priority Date Filing Date
GB346973A Expired GB1444023A (en) 1973-01-23 1973-01-23 Electric discharge lamps

Country Status (14)

Country Link
US (1) US3867664A (de)
JP (1) JPS5837662B2 (de)
BE (1) BE810033A (de)
CA (1) CA988988A (de)
DE (1) DE2402760C3 (de)
DK (1) DK138969B (de)
FR (1) FR2214968B1 (de)
GB (1) GB1444023A (de)
IE (1) IE38771B1 (de)
IT (1) IT1003493B (de)
LU (1) LU69211A1 (de)
NL (1) NL182925C (de)
SE (1) SE383228B (de)
ZA (1) ZA74411B (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133925A (en) * 1982-12-29 1984-08-01 Gen Electric Control of radial distributions in high intensity discharge lamps
US4591759A (en) * 1984-09-10 1986-05-27 General Electric Company Ingredients for solenoidal metal halide arc lamps
US4705987A (en) * 1985-10-03 1987-11-10 The United States Of America As Represented By The United States Department Of Energy Very high efficacy electrodeless high intensity discharge lamps

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2422411A1 (de) * 1974-05-09 1975-12-11 Philips Patentverwaltung Hochdruckquecksilberdampfentladungslampe
US4135110A (en) * 1975-02-13 1979-01-16 Thorn Electrical Industries Limited Electrical discharge lamp
DE2826733C2 (de) * 1977-07-05 1982-07-29 General Electric Co., Schenectady, N.Y. Hochdruck-Metalldampf-Entladungslampe
US6157141A (en) * 1998-05-05 2000-12-05 Osram Sylvania Inc. Blue light electrodeless high intensity discharge lamp system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2102866A5 (de) * 1970-08-27 1972-04-07 Eclairage Lab
US3771009A (en) * 1971-12-27 1973-11-06 Gte Laboratories Inc Electrode discharge device with electrode-activating fill

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133925A (en) * 1982-12-29 1984-08-01 Gen Electric Control of radial distributions in high intensity discharge lamps
US4591759A (en) * 1984-09-10 1986-05-27 General Electric Company Ingredients for solenoidal metal halide arc lamps
US4705987A (en) * 1985-10-03 1987-11-10 The United States Of America As Represented By The United States Department Of Energy Very high efficacy electrodeless high intensity discharge lamps

Also Published As

Publication number Publication date
IE38771L (en) 1974-07-23
SE383228B (sv) 1976-03-01
DE2402760C3 (de) 1980-01-31
IE38771B1 (en) 1978-05-24
AU6481974A (en) 1975-07-24
JPS5837662B2 (ja) 1983-08-17
JPS49104479A (de) 1974-10-03
BE810033A (fr) 1974-05-16
US3867664A (en) 1975-02-18
DE2402760B2 (de) 1979-05-31
DK138969B (da) 1978-11-20
DK138969C (de) 1979-05-28
FR2214968B1 (de) 1978-10-27
NL7400944A (de) 1974-07-25
ZA74411B (en) 1974-11-27
LU69211A1 (de) 1974-04-08
CA988988A (en) 1976-05-11
DE2402760A1 (de) 1974-07-25
NL182925C (nl) 1988-06-01
FR2214968A1 (de) 1974-08-19
IT1003493B (it) 1976-06-10

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee