HK1019538A1 - Method and arrangement for determining remaining operating life of fluorescent lamp - Google Patents

Method and arrangement for determining remaining operating life of fluorescent lamp

Info

Publication number
HK1019538A1
HK1019538A1 HK99104532A HK99104532A HK1019538A1 HK 1019538 A1 HK1019538 A1 HK 1019538A1 HK 99104532 A HK99104532 A HK 99104532A HK 99104532 A HK99104532 A HK 99104532A HK 1019538 A1 HK1019538 A1 HK 1019538A1
Authority
HK
Hong Kong
Prior art keywords
fluorescent lamp
operating life
arrangement
remaining operating
determining remaining
Prior art date
Application number
HK99104532A
Other languages
English (en)
Inventor
Jouko Kuisma
Original Assignee
Teknoware Oy
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 Teknoware Oy filed Critical Teknoware Oy
Publication of HK1019538A1 publication Critical patent/HK1019538A1/xx

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
    • H05B41/295—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices and specially adapted for lamps with preheating electrodes, e.g. for fluorescent lamps
    • H05B41/298—Arrangements for protecting lamps or circuits against abnormal operating conditions
    • H05B41/2988—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the lamp against abnormal operating conditions
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/20—Responsive to malfunctions or to light source life; for protection

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Peptides Or Proteins (AREA)
HK99104532A 1998-02-12 1999-10-14 Method and arrangement for determining remaining operating life of fluorescent lamp HK1019538A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI980322A FI104035B1 (fi) 1998-02-12 1998-02-12 Menetelmä ja järjestely loisteputken jäljellä olevan käyttöiän määrittämiseksi

Publications (1)

Publication Number Publication Date
HK1019538A1 true HK1019538A1 (en) 2000-02-11

Family

ID=8550825

Family Applications (1)

Application Number Title Priority Date Filing Date
HK99104532A HK1019538A1 (en) 1998-02-12 1999-10-14 Method and arrangement for determining remaining operating life of fluorescent lamp

Country Status (7)

Country Link
US (1) US6243017B1 (xx)
EP (1) EP0936846B1 (xx)
AT (1) ATE207284T1 (xx)
DE (2) DE69900349T4 (xx)
ES (1) ES2166214T3 (xx)
FI (1) FI104035B1 (xx)
HK (1) HK1019538A1 (xx)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI107111B (fi) * 1999-09-27 2001-05-31 Teknoware Oy Loisteputken jäljellä olevan käyttöajan määrittäminen
JP4000897B2 (ja) * 2002-04-30 2007-10-31 ウシオ電機株式会社 希ガス放電ランプの寿命予測方法、及び、希ガス放電ランプの寿命予測システム
US6750619B2 (en) * 2002-10-04 2004-06-15 Bruce Industries, Inc. Electronic ballast with filament detection
US7116055B2 (en) * 2003-10-15 2006-10-03 Lutron Electronics Co., Inc. Apparatus and methods for making spectroscopic measurements of cathode fall in fluorescent lamps
CN101023712A (zh) * 2004-09-15 2007-08-22 皇家飞利浦电子股份有限公司 用于给热阴极荧光灯供电的方法和电路
DE102005021297A1 (de) * 2005-05-09 2006-11-16 Tridonicatco Gmbh & Co. Kg Beurteilung des Zustands einer Heizwendel
KR101176086B1 (ko) * 2006-05-30 2012-08-22 페어차일드코리아반도체 주식회사 형광램프의 수명말기 검출회로
US7560867B2 (en) * 2006-10-17 2009-07-14 Access Business Group International, Llc Starter for a gas discharge light source
GB0823473D0 (en) * 2008-12-23 2009-01-28 Signplay Limtied Lamp end of life prediction
US7911210B2 (en) * 2009-02-25 2011-03-22 Fairchild Korea Semiconductor Ltd Diagnosis device, diagnosis method, and lamp ballast circuit using the same

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB731437A (en) * 1952-06-10 1955-06-08 Elliot Equipment Ltd Improvements in or relating to protective clothing
EP0348943A1 (en) * 1988-06-30 1990-01-03 Toshiba Lighting & Technology Corporation Fluorescent lamp
JPH02162696A (ja) 1988-12-15 1990-06-22 Matsushita Electric Works Ltd 放電灯点灯装置
JPH02273497A (ja) 1989-04-14 1990-11-07 Matsushita Electric Works Ltd 放電灯点灯装置
FI92819C (fi) 1993-09-09 1997-06-03 Auramatrix Ifo Oy Savikiekko
JPH0799090A (ja) 1993-09-29 1995-04-11 Toshiba Lighting & Technol Corp 放電灯点灯装置および照明装置
US5574335A (en) * 1994-08-02 1996-11-12 Osram Sylvania Inc. Ballast containing protection circuit for detecting rectification of arc discharge lamp
US5808597A (en) 1995-03-08 1998-09-15 Canon Kabushiki Kaisha Illumination device for liquid crystal display apparatus
US5606224A (en) 1995-11-22 1997-02-25 Osram Sylvania Inc. Protection circuit for fluorescent lamps operating at failure mode
US5925986A (en) * 1996-05-09 1999-07-20 Pacific Scientific Company Method and apparatus for controlling power delivered to a fluorescent lamp

Also Published As

Publication number Publication date
EP0936846A1 (en) 1999-08-18
ES2166214T3 (es) 2002-04-01
FI104035B (fi) 1999-10-29
US6243017B1 (en) 2001-06-05
DE69900349D1 (de) 2001-11-22
FI980322A (fi) 1999-08-13
EP0936846B1 (en) 2001-10-17
ATE207284T1 (de) 2001-11-15
DE69900349T4 (de) 2003-10-30
DE69900349T2 (de) 2002-06-27
FI980322A0 (fi) 1998-02-12
FI104035B1 (fi) 1999-10-29

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Legal Events

Date Code Title Description
PF Patent in force
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20090210