JPS5380782A - Annular fluorescent lamp - Google Patents

Annular fluorescent lamp

Info

Publication number
JPS5380782A
JPS5380782A JP15502276A JP15502276A JPS5380782A JP S5380782 A JPS5380782 A JP S5380782A JP 15502276 A JP15502276 A JP 15502276A JP 15502276 A JP15502276 A JP 15502276A JP S5380782 A JPS5380782 A JP S5380782A
Authority
JP
Japan
Prior art keywords
fluorescent lamp
annular fluorescent
outer diameter
annular
specified
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
JP15502276A
Other languages
Japanese (ja)
Inventor
Hiroyuki Ebara
Akitoshi Komiya
Sadata Ikeda
Fumitake Totani
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
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP15502276A priority Critical patent/JPS5380782A/en
Publication of JPS5380782A publication Critical patent/JPS5380782A/en
Pending legal-status Critical Current

Links

Landscapes

  • Discharge Lamp (AREA)

Abstract

PURPOSE: To provide comparable or more optical output with a less power than that of the conventional, wherein a rare gas mixture of krypton with argon in a specified proportion is contained at a specified pressure in an annular bulb having an outer diameter of 26W30 mm and annulus outer diameter of 215W235 mm.
COPYRIGHT: (C)1978,JPO&Japio
JP15502276A 1976-12-24 1976-12-24 Annular fluorescent lamp Pending JPS5380782A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15502276A JPS5380782A (en) 1976-12-24 1976-12-24 Annular fluorescent lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15502276A JPS5380782A (en) 1976-12-24 1976-12-24 Annular fluorescent lamp

Publications (1)

Publication Number Publication Date
JPS5380782A true JPS5380782A (en) 1978-07-17

Family

ID=15596950

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15502276A Pending JPS5380782A (en) 1976-12-24 1976-12-24 Annular fluorescent lamp

Country Status (1)

Country Link
JP (1) JPS5380782A (en)

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