JPS5657247A - Fluorescent lamp - Google Patents

Fluorescent lamp

Info

Publication number
JPS5657247A
JPS5657247A JP13241879A JP13241879A JPS5657247A JP S5657247 A JPS5657247 A JP S5657247A JP 13241879 A JP13241879 A JP 13241879A JP 13241879 A JP13241879 A JP 13241879A JP S5657247 A JPS5657247 A JP S5657247A
Authority
JP
Japan
Prior art keywords
coated
silicon dioxide
particles
fluorescent
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
JP13241879A
Other languages
Japanese (ja)
Other versions
JPS6346955B2 (en
Inventor
Masayuki Nakamoto
Yoshio Kimura
Toshio Nishimura
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 JP13241879A priority Critical patent/JPS5657247A/en
Publication of JPS5657247A publication Critical patent/JPS5657247A/en
Publication of JPS6346955B2 publication Critical patent/JPS6346955B2/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

Landscapes

  • Luminescent Compositions (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

PURPOSE:To improve the optical output of a fluorescent lamp by coating the inner surface of its bulb with fluorescent particles having an average particle size which is in a specific relationship with that of silicon dioxide particles. CONSTITUTION:Silicon dioxide 2 is first coated on the inner surface of a glass bulb 1. This silicon dioxide 2 is coated in a state dispersed, for example, in butyl acetate or pure water and naturally dried up so that its thickness corresponds to the weight of 10wt% of the fluorescent substance to be coated on it. Subsequently, the fluorescent particles 3 with an average particle size which ranges from 1/8 to 1/30 of that of the silicon dioxide particles is coated on the surface coated with the silicon dioxide 2.
JP13241879A 1979-10-16 1979-10-16 Fluorescent lamp Granted JPS5657247A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13241879A JPS5657247A (en) 1979-10-16 1979-10-16 Fluorescent lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13241879A JPS5657247A (en) 1979-10-16 1979-10-16 Fluorescent lamp

Publications (2)

Publication Number Publication Date
JPS5657247A true JPS5657247A (en) 1981-05-19
JPS6346955B2 JPS6346955B2 (en) 1988-09-19

Family

ID=15080902

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13241879A Granted JPS5657247A (en) 1979-10-16 1979-10-16 Fluorescent lamp

Country Status (1)

Country Link
JP (1) JPS5657247A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4797594A (en) * 1985-04-03 1989-01-10 Gte Laboratories Incorporated Reprographic aperture lamps having improved maintenance
US4923425A (en) * 1987-06-12 1990-05-08 Gte Products Corporation Fluorescent lamp with a predetermined CRI and method for making
US5051653A (en) * 1987-06-12 1991-09-24 Gte Products Corporation Silicon dioxide selectively reflecting layer for mercury vapor discharge lamps

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4797594A (en) * 1985-04-03 1989-01-10 Gte Laboratories Incorporated Reprographic aperture lamps having improved maintenance
US4923425A (en) * 1987-06-12 1990-05-08 Gte Products Corporation Fluorescent lamp with a predetermined CRI and method for making
US5051653A (en) * 1987-06-12 1991-09-24 Gte Products Corporation Silicon dioxide selectively reflecting layer for mercury vapor discharge lamps

Also Published As

Publication number Publication date
JPS6346955B2 (en) 1988-09-19

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