JPS56112064A - Fluorescent lamp - Google Patents

Fluorescent lamp

Info

Publication number
JPS56112064A
JPS56112064A JP1242280A JP1242280A JPS56112064A JP S56112064 A JPS56112064 A JP S56112064A JP 1242280 A JP1242280 A JP 1242280A JP 1242280 A JP1242280 A JP 1242280A JP S56112064 A JPS56112064 A JP S56112064A
Authority
JP
Japan
Prior art keywords
phosphor material
layer
discharge side
bulb
glass
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
JP1242280A
Other languages
Japanese (ja)
Inventor
Hiroyuki Ebara
Kotaro Kawamoto
Hisami Shinra
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 JP1242280A priority Critical patent/JPS56112064A/en
Publication of JPS56112064A publication Critical patent/JPS56112064A/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
    • H01J61/38—Devices for influencing the colour or wavelength of the light
    • H01J61/42—Devices for influencing the colour or wavelength of the light by transforming the wavelength of the light by luminescence
    • H01J61/48—Separate coatings of different luminous materials

Abstract

PURPOSE:To encomize the phosphor material coated on the discharge side without sacrificing lamp characteristics, by appropriately determining the average grain- diameters of both a phosphor material coated on the glass side, and a phosphor material coated on the discharge side. CONSTITUTION:A phosphor material 2 made of phosphor material with grains of a large-diameter is formed on the glass-bulb surface of a fluorescent-lamp glass bulb 1. A phosphor material layer 3 made of phosphor material with grains of a small-diameter is formed on the layer 2, on the discharge side. Filaments 4 and 4 are fused to the ends of the bulb 1. The layer 2 is made of, for example, a calcium- halophosphate phosphor or 4,200 deg.K. The layer 3 is made of a 4,200 deg.K mixture- phoshoric which consists of, for example, 14wt% of strontium-calcium phosphoric chloride activated with europium, 66wt% of yttrium silicate activated with cerium- terbium, and 20wt% of yttrium oxide activated with europium.
JP1242280A 1980-02-06 1980-02-06 Fluorescent lamp Pending JPS56112064A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1242280A JPS56112064A (en) 1980-02-06 1980-02-06 Fluorescent lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1242280A JPS56112064A (en) 1980-02-06 1980-02-06 Fluorescent lamp

Publications (1)

Publication Number Publication Date
JPS56112064A true JPS56112064A (en) 1981-09-04

Family

ID=11804822

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1242280A Pending JPS56112064A (en) 1980-02-06 1980-02-06 Fluorescent lamp

Country Status (1)

Country Link
JP (1) JPS56112064A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4607191A (en) * 1984-11-13 1986-08-19 Gte Products Corporation Protection film for improved phosphor maintenance and increased time-integrated light output
US4633133A (en) * 1984-11-13 1986-12-30 Gte Products Corporation Fluorescent lamps having improved lamp spectral output and maintenance and method of making same
JPH03227572A (en) * 1989-07-04 1991-10-08 Fuji Electric Co Ltd Mos semiconductor device
US6683406B2 (en) 2002-06-24 2004-01-27 Koninklijke Philips Electronics N.V. Low pressure mercury vapor fluorescent lamps

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4607191A (en) * 1984-11-13 1986-08-19 Gte Products Corporation Protection film for improved phosphor maintenance and increased time-integrated light output
US4633133A (en) * 1984-11-13 1986-12-30 Gte Products Corporation Fluorescent lamps having improved lamp spectral output and maintenance and method of making same
JPH03227572A (en) * 1989-07-04 1991-10-08 Fuji Electric Co Ltd Mos semiconductor device
US6683406B2 (en) 2002-06-24 2004-01-27 Koninklijke Philips Electronics N.V. Low pressure mercury vapor fluorescent lamps

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