ZA74411B - Improvements in electric discharge devices - Google Patents

Improvements in electric discharge devices

Info

Publication number
ZA74411B
ZA74411B ZA740411A ZA74411A ZA74411B ZA 74411 B ZA74411 B ZA 74411B ZA 740411 A ZA740411 A ZA 740411A ZA 74411 A ZA74411 A ZA 74411A ZA 74411 B ZA74411 B ZA 74411B
Authority
ZA
South Africa
Prior art keywords
electric discharge
discharge devices
devices
electric
discharge
Prior art date
Application number
ZA740411A
Other languages
English (en)
Inventor
A Chalmers
D Wharmby
Original Assignee
Thorn Electrical Ind 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 Ind Ltd filed Critical Thorn Electrical Ind Ltd
Publication of ZA74411B publication Critical patent/ZA74411B/xx

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
ZA740411A 1973-01-23 1974-01-21 Improvements in electric discharge devices ZA74411B (en)

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
ZA74411B true ZA74411B (en) 1974-11-27

Family

ID=9758912

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA740411A ZA74411B (en) 1973-01-23 1974-01-21 Improvements in electric discharge devices

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)

Families Citing this family (7)

* 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
GB2133925B (en) * 1982-12-29 1987-02-18 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
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

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
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
GB1444023A (en) 1976-07-28
IT1003493B (it) 1976-06-10

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