JPS5697958A - Fluorescent lamp - Google Patents

Fluorescent lamp

Info

Publication number
JPS5697958A
JPS5697958A JP53180A JP53180A JPS5697958A JP S5697958 A JPS5697958 A JP S5697958A JP 53180 A JP53180 A JP 53180A JP 53180 A JP53180 A JP 53180A JP S5697958 A JPS5697958 A JP S5697958A
Authority
JP
Japan
Prior art keywords
silicon
dioxide film
dioxide
burning
visible
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
JP53180A
Other languages
Japanese (ja)
Inventor
Masao Asada
Yoshio Kimura
Toshio Nishimura
Tomohiko Kobutani
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 JP53180A priority Critical patent/JPS5697958A/en
Publication of JPS5697958A publication Critical patent/JPS5697958A/en
Pending 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

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

PURPOSE:To enhance the initial luminous efficacy as well as the life-performance characteristic after burning, by interposing a given thickness of silicon-dioxide film layer made of a given particle body, which provides a narrow of visible-rays transmittance-ratio. CONSTITUTION:The inner wall of a lamp glass 1 is coated with a silicon-dioxide film 2 and a fluorescent film 3, in that order. The silicon-dioxide film 2, which provides a visible-rays transmittance-ratio of 3-25%, is made of a silicon dioxide having a specific surface area of 30-270m<2>/g. The silicon-dioxide film 3 thus prepared enhances the initial luminous efficacy by 2%, and it also increases the life-performance characteristic after 3,000hr of burning by 3%.
JP53180A 1980-01-09 1980-01-09 Fluorescent lamp Pending JPS5697958A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53180A JPS5697958A (en) 1980-01-09 1980-01-09 Fluorescent lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53180A JPS5697958A (en) 1980-01-09 1980-01-09 Fluorescent lamp

Publications (1)

Publication Number Publication Date
JPS5697958A true JPS5697958A (en) 1981-08-07

Family

ID=11476348

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53180A Pending JPS5697958A (en) 1980-01-09 1980-01-09 Fluorescent lamp

Country Status (1)

Country Link
JP (1) JPS5697958A (en)

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