JPS6433844A - Fluorescent lamp - Google Patents

Fluorescent lamp

Info

Publication number
JPS6433844A
JPS6433844A JP18752687A JP18752687A JPS6433844A JP S6433844 A JPS6433844 A JP S6433844A JP 18752687 A JP18752687 A JP 18752687A JP 18752687 A JP18752687 A JP 18752687A JP S6433844 A JPS6433844 A JP S6433844A
Authority
JP
Japan
Prior art keywords
electrode
hollow
fluorescent lamp
lab6
sro
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.)
Pending
Application number
JP18752687A
Other languages
Japanese (ja)
Inventor
Hiromitsu Matsuno
Seiichi Murayama
Masayoshi Kodama
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP18752687A priority Critical patent/JPS6433844A/en
Publication of JPS6433844A publication Critical patent/JPS6433844A/en
Pending legal-status Critical Current

Links

Landscapes

  • Discharge Lamp (AREA)

Abstract

PURPOSE:To obtain a fluorescent lamp lit with the low power source voltage and having excellent luminous efficiency by providing an electrode having at least one kind of material selected BaO, SrO, CaO, MgO, LaB6 on the inner face of the hollow electrode. CONSTITUTION:An electrode 3 is formed into a hollow shape, and at least one kind of material selected out of BaO, SrO, CaO, MgO, LaB6 is provided on the inner face of the hollow. These materials are not reacted with mercury and operated stably. If the rare gas pressure is set in the range of 400/M-4000/M Torr, where M is the atomic weight, the cathode drop voltage is particularly decreased in this range. A lamp can be thereby lit with the low power source voltage, and a high efficiency is obtained.
JP18752687A 1987-07-29 1987-07-29 Fluorescent lamp Pending JPS6433844A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18752687A JPS6433844A (en) 1987-07-29 1987-07-29 Fluorescent lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18752687A JPS6433844A (en) 1987-07-29 1987-07-29 Fluorescent lamp

Publications (1)

Publication Number Publication Date
JPS6433844A true JPS6433844A (en) 1989-02-03

Family

ID=16207625

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18752687A Pending JPS6433844A (en) 1987-07-29 1987-07-29 Fluorescent lamp

Country Status (1)

Country Link
JP (1) JPS6433844A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004025687A3 (en) * 2002-09-12 2005-03-31 Philips Intellectual Property Low-pressure gas discharge lamp with an alkaline earth oxide mixture as the electron emitter substance

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5866232A (en) * 1981-10-16 1983-04-20 Erebamu:Kk Cold cathode fluorescent lamp and its production method
JPS6074256A (en) * 1983-09-30 1985-04-26 Toshiba Corp Fluorescent discharge tube for display element

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5866232A (en) * 1981-10-16 1983-04-20 Erebamu:Kk Cold cathode fluorescent lamp and its production method
JPS6074256A (en) * 1983-09-30 1985-04-26 Toshiba Corp Fluorescent discharge tube for display element

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004025687A3 (en) * 2002-09-12 2005-03-31 Philips Intellectual Property Low-pressure gas discharge lamp with an alkaline earth oxide mixture as the electron emitter substance
CN100346446C (en) * 2002-09-12 2007-10-31 皇家飞利浦电子股份有限公司 Low pressure discharge lamp with aikali earth oxides as electron emitter material

Similar Documents

Publication Publication Date Title
AU6258586A (en) High-pressure mercury vapour discharge lamp
CA2103695A1 (en) Low pressure discharge lamp having sintered "cold cathode" discharge electrodes
EP0270083A3 (en) Low-pressure discharge lamp
JPS6433844A (en) Fluorescent lamp
JPS6489242A (en) Electrode for discharge light source
EP0264709A3 (en) Hollow-anode ion-electron source
EP0152264A3 (en) Fluorescent lamp device
JPS553169A (en) Character display unit
JPS5699961A (en) Fluorescent lamp
JPS567343A (en) Fluorescent lamp
JPS57180069A (en) Discharge lamp with low pressure metallic vapor
JPS5713661A (en) Fluorescent lamp
JPS5588254A (en) Gas discharge type display device
JPS5650045A (en) Electrode for discharge lamp
JPS56156664A (en) Cold cathode interior- and outdoor-lighting fluorescent lamp without filament
JPS6463260A (en) Surface lighting type semiconductor ceramic discharge lamp device
JPS6467856A (en) Fluorescent lamp for equipment
JPS5648058A (en) Circular fluorescent lamp
JPS56134468A (en) Fluorescent lamp
JPS5676157A (en) Mercury rare gas discharge lamp
JPS57180068A (en) Discharge lamp with low pressure metallic vapor
JPS55161358A (en) High voltage metal vapour discharge lamp
JPS57136735A (en) Gas electric-discharge display panel
JPS55126957A (en) High pressure mercury lamp
JPS6484593A (en) Lighting method for rare gas luminescent lamp