JPS5481687A - Electrodeless fluorescent lamp - Google Patents

Electrodeless fluorescent lamp

Info

Publication number
JPS5481687A
JPS5481687A JP14913877A JP14913877A JPS5481687A JP S5481687 A JPS5481687 A JP S5481687A JP 14913877 A JP14913877 A JP 14913877A JP 14913877 A JP14913877 A JP 14913877A JP S5481687 A JPS5481687 A JP S5481687A
Authority
JP
Japan
Prior art keywords
bulb
light emitting
fluorescent lamp
coil
electrodeless fluorescent
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
JP14913877A
Other languages
Japanese (ja)
Inventor
Norihiko Tanaka
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP14913877A priority Critical patent/JPS5481687A/en
Publication of JPS5481687A publication Critical patent/JPS5481687A/en
Pending legal-status Critical Current

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  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

PURPOSE: To improve the light emitting efficiency and to prevent luminous flux of an electrodeless fluorescent lamp from varying by so protruding part of container into induction coil as to dispose a light emitting medium at the inside and outside of the coil.
CONSTITUTION: This electrodeless fluorescent lamp 21 incorporated fluorescent layer 3 coated on the inside surface of glass bulb 2 and argon gas of 1 to several Torr. and small amount of mercury as firing gas in the bulb 2. Coaxial double glass cylinders formed by first and second glass cylinders 9 and 10 are inserted from the bottom of the bulb 2 into the interior of the bulb 2. A fluorescent layer 3a is also formed on the inside surface of the bulb 2 of the cylinders 9, 10 with induction coil 4 loosely engaged with the enclosure of the cylinder 10 as connected to a high frequency oscillator 6. Accordingly, since there exists light emitting medium within the cylinder 10 at the bottom of the inner periphery of the coil 4, it can effectively illuminate light.
COPYRIGHT: (C)1979,JPO&Japio
JP14913877A 1977-12-12 1977-12-12 Electrodeless fluorescent lamp Pending JPS5481687A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14913877A JPS5481687A (en) 1977-12-12 1977-12-12 Electrodeless fluorescent lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14913877A JPS5481687A (en) 1977-12-12 1977-12-12 Electrodeless fluorescent lamp

Publications (1)

Publication Number Publication Date
JPS5481687A true JPS5481687A (en) 1979-06-29

Family

ID=15468573

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14913877A Pending JPS5481687A (en) 1977-12-12 1977-12-12 Electrodeless fluorescent lamp

Country Status (1)

Country Link
JP (1) JPS5481687A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01292743A (en) * 1988-05-18 1989-11-27 Matsushita Electric Works Ltd Electrodeless discharge lamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01292743A (en) * 1988-05-18 1989-11-27 Matsushita Electric Works Ltd Electrodeless discharge lamp

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