JPS6467856A - Fluorescent lamp for equipment - Google Patents

Fluorescent lamp for equipment

Info

Publication number
JPS6467856A
JPS6467856A JP22403587A JP22403587A JPS6467856A JP S6467856 A JPS6467856 A JP S6467856A JP 22403587 A JP22403587 A JP 22403587A JP 22403587 A JP22403587 A JP 22403587A JP S6467856 A JPS6467856 A JP S6467856A
Authority
JP
Japan
Prior art keywords
gas
fluorescent lamp
molecular weight
average molecular
section area
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.)
Granted
Application number
JP22403587A
Other languages
Japanese (ja)
Other versions
JPH0687412B2 (en
Inventor
Masasane Takagi
Shinichi Tsunekawa
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP22403587A priority Critical patent/JPH0687412B2/en
Publication of JPS6467856A publication Critical patent/JPS6467856A/en
Publication of JPH0687412B2 publication Critical patent/JPH0687412B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Discharge Lamps And Accessories Thereof (AREA)
  • Discharge Lamp (AREA)

Abstract

PURPOSE:To prevent a blackening defect during the life and accelerate the rising at a start by sealing argon and the gas lighter than it in a lamp with a small tube cross section area and a large tube wall load under specific conditions. CONSTITUTION:In a bulb with the tube cross section area of 5.2cm<2> or less and the tube wall load of 500W/m<2> or more and sealed with the starting gas and mercury, argon and the rare gas lighter than it, i.e., at least one kind of neon and helium, are combined as the starting gas, the average molecular weight is 37 or less, and the relationship between the gas pressure P Torr and the average molecular weight M is set to 0.5<=P<=2.5 when 34<M<=37 and to 0.5<=P<=5.0 when M<=34. A fluorescent lamp with good rising and little blackening during the required life is thereby obtained.
JP22403587A 1987-09-09 1987-09-09 Fluorescent lamp for equipment Expired - Lifetime JPH0687412B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22403587A JPH0687412B2 (en) 1987-09-09 1987-09-09 Fluorescent lamp for equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22403587A JPH0687412B2 (en) 1987-09-09 1987-09-09 Fluorescent lamp for equipment

Publications (2)

Publication Number Publication Date
JPS6467856A true JPS6467856A (en) 1989-03-14
JPH0687412B2 JPH0687412B2 (en) 1994-11-02

Family

ID=16807573

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22403587A Expired - Lifetime JPH0687412B2 (en) 1987-09-09 1987-09-09 Fluorescent lamp for equipment

Country Status (1)

Country Link
JP (1) JPH0687412B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01236569A (en) * 1988-03-17 1989-09-21 Matsushita Electron Corp Fluorescent lamp
JPH04101346A (en) * 1990-08-17 1992-04-02 Stanley Electric Co Ltd Cold cathode-type discharge lamp
JP2003109542A (en) * 2001-09-28 2003-04-11 Toshiba Lighting & Technology Corp Fluorescent lamp, bulb shape fluorescent lamp and illumination apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01236569A (en) * 1988-03-17 1989-09-21 Matsushita Electron Corp Fluorescent lamp
JPH04101346A (en) * 1990-08-17 1992-04-02 Stanley Electric Co Ltd Cold cathode-type discharge lamp
JP2003109542A (en) * 2001-09-28 2003-04-11 Toshiba Lighting & Technology Corp Fluorescent lamp, bulb shape fluorescent lamp and illumination apparatus

Also Published As

Publication number Publication date
JPH0687412B2 (en) 1994-11-02

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