JPS5744941A - Production of fluorescent lamp - Google Patents

Production of fluorescent lamp

Info

Publication number
JPS5744941A
JPS5744941A JP11993380A JP11993380A JPS5744941A JP S5744941 A JPS5744941 A JP S5744941A JP 11993380 A JP11993380 A JP 11993380A JP 11993380 A JP11993380 A JP 11993380A JP S5744941 A JPS5744941 A JP S5744941A
Authority
JP
Japan
Prior art keywords
bulb
fluorescent lamp
bulbs
coated
divided
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
JP11993380A
Other languages
Japanese (ja)
Inventor
Hajime Nakamura
Hiroshi Imamura
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP11993380A priority Critical patent/JPS5744941A/en
Publication of JPS5744941A publication Critical patent/JPS5744941A/en
Pending legal-status Critical Current

Links

Landscapes

  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

PURPOSE:To obtain a fluorescent lamp having different phosphor layers on a semi- circumference basis per fluorescent lamp by a method wherein each of bulbs coated with different phosphor substances baked on each of them are divided into two portions in the longitudinal direction and two of the portions coated with different phosphor substances are combined into one body. CONSTITUTION:Each of glass bulbs, 1, 1' is coated with a daylight phosphor substance 2 and a warm white phosphor substance 3, respectively. The bulb is divided into halves in the longitudinal direction and separated. The divided halves of the bulbs 1, 1' are combined with each other and inserted into an external glass bulb 4 which is long and has a diameter slightly greater than that of the above combined bulb, of which both ends are fixed by means of binding metals. Next, mounts 7 provided with electrodes 6 each are attached to and sealed at both ends of the external glass bulb 4. By so doing, one fluorescent lamp is allowed to have different phosphor layers on a semi-circumference basis, so that illumination effects in either daylight or warm white color are made available by only turning the bulb by 180 deg..
JP11993380A 1980-08-29 1980-08-29 Production of fluorescent lamp Pending JPS5744941A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11993380A JPS5744941A (en) 1980-08-29 1980-08-29 Production of fluorescent lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11993380A JPS5744941A (en) 1980-08-29 1980-08-29 Production of fluorescent lamp

Publications (1)

Publication Number Publication Date
JPS5744941A true JPS5744941A (en) 1982-03-13

Family

ID=14773753

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11993380A Pending JPS5744941A (en) 1980-08-29 1980-08-29 Production of fluorescent lamp

Country Status (1)

Country Link
JP (1) JPS5744941A (en)

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