SE7909213L - CATHODIC UNIT OF LIGHT - Google Patents

CATHODIC UNIT OF LIGHT

Info

Publication number
SE7909213L
SE7909213L SE7909213A SE7909213A SE7909213L SE 7909213 L SE7909213 L SE 7909213L SE 7909213 A SE7909213 A SE 7909213A SE 7909213 A SE7909213 A SE 7909213A SE 7909213 L SE7909213 L SE 7909213L
Authority
SE
Sweden
Prior art keywords
cathod
shield
ions
molecules
released
Prior art date
Application number
SE7909213A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE435332B (en
Inventor
K A G Bjorkman
Original Assignee
Lumalampan Ab
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 Lumalampan Ab filed Critical Lumalampan Ab
Priority to SE7909213A priority Critical patent/SE435332B/en
Priority to DE3041548A priority patent/DE3041548C2/en
Priority to IT25764/80A priority patent/IT1134172B/en
Priority to DE19808029380U priority patent/DE8029380U1/en
Priority to PT72017A priority patent/PT72017B/en
Priority to FR8023573A priority patent/FR2473785A1/en
Priority to BE0/202699A priority patent/BE886030A/en
Priority to GB8120702A priority patent/GB2077033B/en
Priority to PCT/SE1980/000279 priority patent/WO1981001344A1/en
Priority to HU801205A priority patent/HU181318B/en
Priority to JP55502594A priority patent/JPH0250582B2/ja
Priority to BR8008906A priority patent/BR8008906A/en
Priority to NLAANVRAGE8020421,A priority patent/NL189787C/en
Priority to CH8265/80A priority patent/CH649653A5/en
Priority to YU2839/80A priority patent/YU39696B/en
Priority to MX184636A priority patent/MX147322A/en
Priority to AU65704/80A priority patent/AU543221B2/en
Priority to CA000364156A priority patent/CA1150340A/en
Priority to ES1980263202U priority patent/ES263202Y/en
Priority to PL1980227738A priority patent/PL132221B1/en
Priority to CS807548A priority patent/CS250206B2/en
Priority to AT0547480A priority patent/AT377385B/en
Publication of SE7909213L publication Critical patent/SE7909213L/en
Priority to DK296081A priority patent/DK158177C/en
Priority to FI812128A priority patent/FI68928C/en
Priority to NO812294A priority patent/NO153946C/en
Priority to SU813315649A priority patent/SU1218936A3/en
Priority to RO104806A priority patent/RO81624B/en
Publication of SE435332B publication Critical patent/SE435332B/en
Priority to BA970178A priority patent/BA97178B1/en
Priority to HRP-2839/80A priority patent/HRP970320B1/en

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

Landscapes

  • Discharge Lamp (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
  • Physical Vapour Deposition (AREA)

Abstract

Cathode unit intended for use in a fluorescent tube and designed in such a way that the service life of the tube is increased markedly as a result of a reduction in the loss of emmission material from the cathod (3). These material losses are caused by, inter alia, ion bombardment and by vaporization of the emission material. In order to achieve a marked increase in the reflection of released ions and molecules back to cathod surface, both ions and molecules which have been released through ion bombardment a ions and molecules which have been released vaporized from the cathod surface, the cathode (3) is surrounded by an electrically conductive cathode shield (6) in the form of a box-shaped casing which is, however, electrically insulated from the cathod. A opening (8) is made in the bottom of the shield for inserting the cathod (3). The open end of the shield (6) is sealed by means of a disc (9), preferably made of mica and provided with a centrally located hole (19). The hole diameter of the mica disc (9) should be selected so that it is as small as possible while bearing in mind the fact that the starting voltage for the tube should not exceed a predetermined value. The opening (8) in the bottom of the shield (6) should be of at least the same area as the hole in the mica disc (9).
SE7909213A 1979-11-07 1979-11-07 CATHOD UNIT OF LIGHT SE435332B (en)

Priority Applications (29)

Application Number Priority Date Filing Date Title
SE7909213A SE435332B (en) 1979-11-07 1979-11-07 CATHOD UNIT OF LIGHT
DE3041548A DE3041548C2 (en) 1979-11-07 1980-11-04 Fluorescent lamp with heated cathode
IT25764/80A IT1134172B (en) 1979-11-07 1980-11-04 CATHODIC ELEMENT FOR FLUORESCENT TUBES
DE19808029380U DE8029380U1 (en) 1979-11-07 1980-11-04 FLUORESCENT TUBES WITH CATHODES SURROUNDED BY A CATHODE SHIELD
PT72017A PT72017B (en) 1979-11-07 1980-11-04 Cathod unit for fluorescent tube
FR8023573A FR2473785A1 (en) 1979-11-07 1980-11-05 CATHODE DEVICE FOR FLUORESCENT TUBES
BE0/202699A BE886030A (en) 1979-11-07 1980-11-05 CATHODIC UNIT FOR A FLUORESCENT TUBE
MX184636A MX147322A (en) 1979-11-07 1980-11-06 CATODE UNIT FOR FLUORESCENT TUBE
ES1980263202U ES263202Y (en) 1979-11-07 1980-11-06 PERFECTED CATODE UNITS FOR FLUORESCENT TUBES.
HU801205A HU181318B (en) 1979-11-07 1980-11-06 Cathode unit for fluorescent tubes
JP55502594A JPH0250582B2 (en) 1979-11-07 1980-11-06
BR8008906A BR8008906A (en) 1979-11-07 1980-11-06 CATHODE UNIT FOR FLUORESCENT PIPES
NLAANVRAGE8020421,A NL189787C (en) 1979-11-07 1980-11-06 FLUORESCENT LAMP.
CH8265/80A CH649653A5 (en) 1979-11-07 1980-11-06 FLUORESCENT TUBE WITH CATHODES SURROUNDED BY A CATHODE SHIELD.
YU2839/80A YU39696B (en) 1979-11-07 1980-11-06 Cathode unit of a fluorescent lamp
GB8120702A GB2077033B (en) 1979-11-07 1980-11-06 Cathode unit for fluorescent tube
AU65704/80A AU543221B2 (en) 1979-11-07 1980-11-06 Cathode unit for fluorescent tube
CA000364156A CA1150340A (en) 1979-11-07 1980-11-06 Cathode unit for fluorescent tube
PCT/SE1980/000279 WO1981001344A1 (en) 1979-11-07 1980-11-06 Cathode unit for fluorescent tube
PL1980227738A PL132221B1 (en) 1979-11-07 1980-11-07 Fluorescent lamp cathode assembly
CS807548A CS250206B2 (en) 1979-11-07 1980-11-07 Cathode unit for fluorescent lamps
AT0547480A AT377385B (en) 1979-11-07 1980-11-07 FLUORESCENT TUBES WITH CATHODES SURROUNDED BY A CATHODE SHIELD
DK296081A DK158177C (en) 1979-11-07 1981-07-03 CATHETIC UNIT FOR LIGHT SEEDS
FI812128A FI68928C (en) 1979-11-07 1981-07-06 CATHODIC FOER LYSROER
NO812294A NO153946C (en) 1979-11-07 1981-07-06 Cathode unit for light beetles.
SU813315649A SU1218936A3 (en) 1979-11-07 1981-07-06 Cathode unit for luminiscent lamps
RO104806A RO81624B (en) 1979-11-07 1981-07-07 Cathode for luminous lamp
BA970178A BA97178B1 (en) 1979-11-07 1997-06-06 Cathodic unit for fluorescent tube
HRP-2839/80A HRP970320B1 (en) 1979-11-07 1997-06-09 Cathode unit for a fluorescent tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7909213A SE435332B (en) 1979-11-07 1979-11-07 CATHOD UNIT OF LIGHT

Publications (2)

Publication Number Publication Date
SE7909213L true SE7909213L (en) 1981-05-08
SE435332B SE435332B (en) 1984-09-17

Family

ID=20339270

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7909213A SE435332B (en) 1979-11-07 1979-11-07 CATHOD UNIT OF LIGHT

Country Status (25)

Country Link
JP (1) JPH0250582B2 (en)
AT (1) AT377385B (en)
AU (1) AU543221B2 (en)
BE (1) BE886030A (en)
BR (1) BR8008906A (en)
CA (1) CA1150340A (en)
CH (1) CH649653A5 (en)
CS (1) CS250206B2 (en)
DE (2) DE8029380U1 (en)
DK (1) DK158177C (en)
ES (1) ES263202Y (en)
FI (1) FI68928C (en)
FR (1) FR2473785A1 (en)
GB (1) GB2077033B (en)
HU (1) HU181318B (en)
IT (1) IT1134172B (en)
MX (1) MX147322A (en)
NO (1) NO153946C (en)
PL (1) PL132221B1 (en)
PT (1) PT72017B (en)
RO (1) RO81624B (en)
SE (1) SE435332B (en)
SU (1) SU1218936A3 (en)
WO (1) WO1981001344A1 (en)
YU (1) YU39696B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0555619B1 (en) * 1992-02-13 1996-05-22 Luminova Aktiebolag Cathode screen for gas discharge lamps
US6384534B1 (en) 1999-12-17 2002-05-07 General Electric Company Electrode material for fluorescent lamps
SE515637C2 (en) 2000-01-24 2001-09-17 Auralight Ab Security structure for fluorescent lamps
US6741023B2 (en) 2001-07-10 2004-05-25 Light Sources, Inc. Fluorescent tanning lamp with improved service life
SE524397C2 (en) 2002-04-11 2004-08-03 Auralight Int Ab Cathode unit for fluorescent lamps and method for manufacturing fluorescent lamps
US6812639B2 (en) * 2002-09-13 2004-11-02 Light Sources, Inc. Germicidal lamp with end of life arc quenching device
US6809468B1 (en) 2002-12-11 2004-10-26 Light Sources, Inc. Cathode with disintegration shield in a gas discharge lamp
DE10334175B4 (en) * 2003-07-26 2006-09-21 Dei-Anang, Kwesi, Priv.-Doz. Dr.med. Respirator
JP2008204856A (en) * 2007-02-21 2008-09-04 Nec Lighting Ltd Thermoionic cathode fluorescent lamp
RU2505744C2 (en) * 2012-03-06 2014-01-27 Государственное научное учреждение Всероссийский научно-исследовательский институт электрификации сельского хозяйства Российской академии сельскохозяйственных наук (ГНУ ВИЭСХ Россельхозакадемии) Electric lighting system (versions)
JP6691317B2 (en) * 2015-10-06 2020-04-28 ウシオ電機株式会社 Short arc type discharge lamp

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2008066A (en) * 1933-02-17 1935-07-16 Quarzlampen Gmbh Gas or vapor discharge tube
US2238277A (en) * 1940-02-09 1941-04-15 Miller Maurice Combination tube closure and electrode for neon tubes
US2725497A (en) * 1951-04-25 1955-11-29 Westinghouse Electric Corp Floating grids for fluorescent lamps
DE955341C (en) * 1952-01-13 1957-01-03 Physikalisch Tech Werkstaetten Gas discharge tubes with a screen enclosing the cathode in a pot-shaped manner
FR1110434A (en) * 1954-08-31 1956-02-13 Hyperion Sa Improvements to the electrodes of the discharge tubes
US2917650A (en) * 1955-06-29 1959-12-15 Hyperion Sa Electrode for discharge tubes
GB841343A (en) * 1957-10-09 1960-07-13 Philips Electrical Ind Ltd Improvements in or relating to low-pressure mercury vapour discharge tubes
FR1271505A (en) * 1959-05-11 1961-09-15 Lampes Sa Low pressure discharge device
US3121184A (en) * 1960-12-30 1964-02-11 Gen Electric Discharge lamp with cathode shields
NL6514352A (en) * 1965-11-05 1967-05-08
US3390297A (en) * 1966-07-01 1968-06-25 Perkin Elmer Corp Shield for hollow cathode lamps
US3430359A (en) * 1967-02-09 1969-03-04 Roll O Sheets Apparatus with heat conductive belt
US3623136A (en) * 1968-05-10 1971-11-23 Hitachi Ltd Light-source lamp for atomic light-absorption analysis

Also Published As

Publication number Publication date
AU6570480A (en) 1981-05-22
NO153946B (en) 1986-03-10
SU1218936A3 (en) 1986-03-15
FR2473785A1 (en) 1981-07-17
CS250206B2 (en) 1987-04-16
NO153946C (en) 1986-06-18
CA1150340A (en) 1983-07-19
PT72017B (en) 1981-12-17
DK296081A (en) 1981-07-03
AU543221B2 (en) 1985-04-04
SE435332B (en) 1984-09-17
DE8029380U1 (en) 1982-07-15
WO1981001344A1 (en) 1981-05-14
RO81624B (en) 1984-08-25
DK158177B (en) 1990-04-02
PL132221B1 (en) 1985-02-28
DK158177C (en) 1990-09-03
FI812128L (en) 1981-07-06
MX147322A (en) 1982-11-10
HU181318B (en) 1983-07-28
IT8025764A0 (en) 1980-11-04
GB2077033A (en) 1981-12-09
JPS56501507A (en) 1981-10-15
ES263202U (en) 1982-12-01
ES263202Y (en) 1985-12-16
JPH0250582B2 (en) 1990-11-02
DE3041548C2 (en) 1986-07-24
IT1134172B (en) 1986-07-31
PT72017A (en) 1980-12-01
FI68928B (en) 1985-07-31
YU39696B (en) 1985-03-20
BE886030A (en) 1981-03-02
GB2077033B (en) 1984-07-04
NO812294L (en) 1981-07-06
PL227738A1 (en) 1981-08-21
ATA547480A (en) 1984-07-15
RO81624A (en) 1984-05-12
AT377385B (en) 1985-03-11
FR2473785B1 (en) 1985-03-08
FI68928C (en) 1985-11-11
CH649653A5 (en) 1985-05-31
DE3041548A1 (en) 1981-05-21
YU283980A (en) 1983-06-30
BR8008906A (en) 1981-08-25

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