JPS52146072A - Ring-shaped fluorescent lamp with non-circular cross section - Google Patents

Ring-shaped fluorescent lamp with non-circular cross section

Info

Publication number
JPS52146072A
JPS52146072A JP6115776A JP6115776A JPS52146072A JP S52146072 A JPS52146072 A JP S52146072A JP 6115776 A JP6115776 A JP 6115776A JP 6115776 A JP6115776 A JP 6115776A JP S52146072 A JPS52146072 A JP S52146072A
Authority
JP
Japan
Prior art keywords
ring
section
fluorescent lamp
shaped fluorescent
circular cross
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
JP6115776A
Other languages
Japanese (ja)
Inventor
Tadayoshi Kodama
Taisuke Hirota
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 JP6115776A priority Critical patent/JPS52146072A/en
Publication of JPS52146072A publication Critical patent/JPS52146072A/en
Pending legal-status Critical Current

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  • Discharge Lamp (AREA)

Abstract

PURPOSE: To improve luminous efficiency by sealing in inert gas with krypton as its core in a ring-shaped fluorescent lamp with non-circle cross section.
COPYRIGHT: (C)1977,JPO&Japio
JP6115776A 1976-05-28 1976-05-28 Ring-shaped fluorescent lamp with non-circular cross section Pending JPS52146072A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6115776A JPS52146072A (en) 1976-05-28 1976-05-28 Ring-shaped fluorescent lamp with non-circular cross section

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6115776A JPS52146072A (en) 1976-05-28 1976-05-28 Ring-shaped fluorescent lamp with non-circular cross section

Publications (1)

Publication Number Publication Date
JPS52146072A true JPS52146072A (en) 1977-12-05

Family

ID=13163010

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6115776A Pending JPS52146072A (en) 1976-05-28 1976-05-28 Ring-shaped fluorescent lamp with non-circular cross section

Country Status (1)

Country Link
JP (1) JPS52146072A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003162975A (en) * 2001-10-18 2003-06-06 General Electric Co <Ge> Low-wattage fluorescent lamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003162975A (en) * 2001-10-18 2003-06-06 General Electric Co <Ge> Low-wattage fluorescent lamp

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