SE304558B - - Google Patents

Info

Publication number
SE304558B
SE304558B SE6489/67A SE648967A SE304558B SE 304558 B SE304558 B SE 304558B SE 6489/67 A SE6489/67 A SE 6489/67A SE 648967 A SE648967 A SE 648967A SE 304558 B SE304558 B SE 304558B
Authority
SE
Sweden
Prior art keywords
boron
mixture
electron emissive
tungsten
compound
Prior art date
Application number
SE6489/67A
Other languages
English (en)
Inventor
P Piree
Original Assignee
Philips 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
Priority claimed from NL6606479A external-priority patent/NL6606479A/xx
Priority claimed from NL6614550A external-priority patent/NL6614550A/xx
Application filed by Philips Nv filed Critical Philips Nv
Publication of SE304558B publication Critical patent/SE304558B/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
    • H01J61/04—Electrodes; Screens; Shields
    • H01J61/06—Main electrodes
    • H01J61/067—Main electrodes for low-pressure discharge lamps
    • H01J61/0675—Main electrodes for low-pressure discharge lamps characterised by the material of the electrode
    • H01J61/0677—Main electrodes for low-pressure discharge lamps characterised by the material of the electrode characterised by the electron emissive material

Landscapes

  • Discharge Lamp (AREA)
  • Solid Thermionic Cathode (AREA)
  • Luminescent Compositions (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
SE6489/67A 1966-05-12 1967-05-09 SE304558B (xx)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL6606479A NL6606479A (xx) 1966-05-12 1966-05-12
NL6614550A NL6614550A (xx) 1966-10-15 1966-10-15

Publications (1)

Publication Number Publication Date
SE304558B true SE304558B (xx) 1968-09-30

Family

ID=26644037

Family Applications (2)

Application Number Title Priority Date Filing Date
SE6489/67A SE304558B (xx) 1966-05-12 1967-05-09
SE6482/67A SE305031B (xx) 1966-05-12 1967-05-09

Family Applications After (1)

Application Number Title Priority Date Filing Date
SE6482/67A SE305031B (xx) 1966-05-12 1967-05-09

Country Status (10)

Country Link
US (1) US3505553A (xx)
AT (1) AT279735B (xx)
BE (2) BE698366A (xx)
CH (2) CH490732A (xx)
DE (2) DE1589247B2 (xx)
ES (2) ES340338A1 (xx)
FR (2) FR1522814A (xx)
GB (2) GB1191463A (xx)
NO (1) NO118120B (xx)
SE (2) SE304558B (xx)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4321503A (en) * 1978-11-06 1982-03-23 Westinghouse Electric Corp. HID Lamp electrode comprising barium-calcium niobate or tantalate
JPS63141252A (ja) * 1986-12-02 1988-06-13 Hitachi Ltd 低圧放電灯
US4910431A (en) * 1987-04-24 1990-03-20 W. C. Heraeus Gmbh Hydrogen discharge ultraviolet light source or lamp, and method of its manufacture
DE3715375C1 (de) * 1987-05-08 1988-10-13 Heraeus Gmbh W C Wasserstoff-Entladungslampe
DE3713704A1 (de) * 1987-04-24 1988-11-03 Heraeus Gmbh W C Wasserstoff-entladungslampe und verfahren zu ihrer herstellung
US5391523A (en) * 1993-10-27 1995-02-21 Marlor; Richard C. Electric lamp with lead free glass
US5675214A (en) * 1994-09-21 1997-10-07 U.S. Philips Corporation Low-pressure discharge lamp having hollow electrodes
WO1996014654A1 (en) * 1994-11-08 1996-05-17 Philips Electronics N.V. Low-pressure discharge lamp
US5686789A (en) * 1995-03-14 1997-11-11 Osram Sylvania Inc. Discharge device having cathode with micro hollow array
JPH103879A (ja) * 1996-06-12 1998-01-06 Tdk Corp セラミック陰極蛍光放電ランプ
US5856726A (en) * 1996-03-15 1999-01-05 Osram Sylvania Inc. Electric lamp with a threaded electrode
US6713950B2 (en) 2001-08-22 2004-03-30 General Electric Company Low volatility slurry for emission mix powder

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE502232A (xx) * 1950-03-31
US2878411A (en) * 1955-03-21 1959-03-17 Chromatic Television Lab Inc Color television display screen
US2959702A (en) * 1958-07-02 1960-11-08 Westinghouse Electric Corp Lamp and mount
US3027480A (en) * 1958-12-15 1962-03-27 Raytheon Co Electron discharge device cathodes
GB1015840A (en) * 1964-09-08 1966-01-05 Standard Telephones Cables Ltd Thermionic valves
GB1178052A (en) * 1966-04-20 1970-01-14 Matsushita Electronics Corp A Noiseless Discharge Tube
GB1178051A (en) * 1966-04-20 1970-01-14 Matsushita Electronics Corp Noiseless Discharge Tube

Also Published As

Publication number Publication date
US3505553A (en) 1970-04-07
CH490732A (de) 1970-05-15
ES340339A1 (es) 1968-06-01
FR1522815A (fr) 1968-04-26
ES340338A1 (es) 1968-06-01
DE1589248B2 (de) 1976-04-15
FR1522814A (fr) 1968-04-26
SE305031B (xx) 1968-10-14
GB1193864A (en) 1970-06-03
BE698451A (xx) 1967-11-13
NO118120B (xx) 1969-11-10
GB1191463A (en) 1970-05-13
CH464354A (de) 1968-10-31
DE1589247A1 (de) 1970-04-09
DE1589247B2 (de) 1976-04-15
DE1589248A1 (de) 1970-04-30
AT279735B (de) 1970-03-10
BE698366A (xx) 1967-11-13

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