JPS56123661A - Curved fluorescent lamp - Google Patents

Curved fluorescent lamp

Info

Publication number
JPS56123661A
JPS56123661A JP2651980A JP2651980A JPS56123661A JP S56123661 A JPS56123661 A JP S56123661A JP 2651980 A JP2651980 A JP 2651980A JP 2651980 A JP2651980 A JP 2651980A JP S56123661 A JPS56123661 A JP S56123661A
Authority
JP
Japan
Prior art keywords
bulb
strength
coating
oxide
fluorescent lamp
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.)
Granted
Application number
JP2651980A
Other languages
Japanese (ja)
Other versions
JPS6351343B2 (en
Inventor
Atsushi Sato
Noriyoshi Kikuchi
Takashi Omori
Masatoshi Nakamura
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 JP2651980A priority Critical patent/JPS56123661A/en
Priority to AU67202/81A priority patent/AU530404B2/en
Priority to CA000370811A priority patent/CA1158704A/en
Priority to DE8181300626T priority patent/DE3161854D1/en
Priority to EP19810300626 priority patent/EP0034494B1/en
Publication of JPS56123661A publication Critical patent/JPS56123661A/en
Publication of JPS6351343B2 publication Critical patent/JPS6351343B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • H01J61/35—Vessels; Containers provided with coatings on the walls thereof; Selection of materials for the coatings

Abstract

PURPOSE:To improve initial light flux, performance characteristics, and strength of a bulb by coating the inner surface of a transparent airtight bulb in curved form with a specific amount of aluminium oxide and further coating with a phosphor film containing calcium borate. CONSTITUTION:A transparent airtight bulb in curved form is made from soad lime glass or low lead glass containing 12wt% or less lead oxide each of which has the softening temperature of 640-720 deg.C and the linear thermal expansion coefficient of 92-105X10<-7>cm/cm deg.C. The inner surface of the bulb described above is coated with the oxide of aluminium or magnesium etc. in the rate of 0.6-0.2mg/cm<2> of the inner surface area, and further coated with the phosphor film which contains 0.2-2.0wt% calcium borate per weight of phosphor. Accordingly, the coating strength of the phoshor is increased, and the strength of the airtight bulb can be improved, and further, the initial light flux and performance characteristic can be improved remarkably as a curved fluorescent lamp.
JP2651980A 1980-02-15 1980-03-05 Curved fluorescent lamp Granted JPS56123661A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2651980A JPS56123661A (en) 1980-03-05 1980-03-05 Curved fluorescent lamp
AU67202/81A AU530404B2 (en) 1980-02-15 1981-02-11 Discharge lamp vessel
CA000370811A CA1158704A (en) 1980-02-15 1981-02-13 Curvilinear type fluorescent lamp
DE8181300626T DE3161854D1 (en) 1980-02-15 1981-02-16 Curvilinear type fluorescent lamp
EP19810300626 EP0034494B1 (en) 1980-02-15 1981-02-16 Curvilinear type fluorescent lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2651980A JPS56123661A (en) 1980-03-05 1980-03-05 Curved fluorescent lamp

Publications (2)

Publication Number Publication Date
JPS56123661A true JPS56123661A (en) 1981-09-28
JPS6351343B2 JPS6351343B2 (en) 1988-10-13

Family

ID=12195718

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2651980A Granted JPS56123661A (en) 1980-02-15 1980-03-05 Curved fluorescent lamp

Country Status (1)

Country Link
JP (1) JPS56123661A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS646355A (en) * 1987-06-29 1989-01-10 Nichia Kagaku Kogyo Kk Luminous composite and fluorescent lamp

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5035969A (en) * 1973-08-02 1975-04-04
JPS52142880A (en) * 1976-05-25 1977-11-29 Toshiba Corp Fluorescent lamp

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5035969A (en) * 1973-08-02 1975-04-04
JPS52142880A (en) * 1976-05-25 1977-11-29 Toshiba Corp Fluorescent lamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS646355A (en) * 1987-06-29 1989-01-10 Nichia Kagaku Kogyo Kk Luminous composite and fluorescent lamp

Also Published As

Publication number Publication date
JPS6351343B2 (en) 1988-10-13

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