PL132523B1 - Fluorescent lamp - Google Patents

Fluorescent lamp Download PDF

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Publication number
PL132523B1
PL132523B1 PL1979218118A PL21811879A PL132523B1 PL 132523 B1 PL132523 B1 PL 132523B1 PL 1979218118 A PL1979218118 A PL 1979218118A PL 21811879 A PL21811879 A PL 21811879A PL 132523 B1 PL132523 B1 PL 132523B1
Authority
PL
Poland
Prior art keywords
activated
calcium
emitting phosphor
phosphor
divalent
Prior art date
Application number
PL1979218118A
Other languages
Polish (pl)
Other versions
PL218118A1 (en
Original Assignee
Tokyo Shibaura Electric Co
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 Tokyo Shibaura Electric Co filed Critical Tokyo Shibaura Electric Co
Publication of PL218118A1 publication Critical patent/PL218118A1/xx
Publication of PL132523B1 publication Critical patent/PL132523B1/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C09K11/77Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
    • C09K11/7728Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing europium
    • C09K11/7737Phosphates
    • C09K11/7738Phosphates with alkaline earth metals
    • C09K11/7739Phosphates with alkaline earth metals with halogens
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C09K11/77Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
    • C09K11/7766Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals
    • C09K11/77742Silicates
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C09K11/77Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
    • C09K11/7783Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals one of which being europium
    • C09K11/7784Chalcogenides
    • C09K11/7787Oxides
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00Gas-discharge or vapour-discharge lamps
    • H01J61/02Details
    • H01J61/38Devices for influencing the colour or wavelength of the light
    • H01J61/42Devices for influencing the colour or wavelength of the light by transforming the wavelength of the light by luminescence
    • H01J61/44Devices characterised by the luminescent material

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Luminescent Compositions (AREA)

Description

Przedmiotem wynalazku jest lampa fluorescecyj- na o zakresie temperatur barwy pomiedzy 2800 a 7000 K, zapewniajaca duza skutecznosc swietlna i zadowalajace wlasnosci oddawania barw.Przez dlugie lata lampa fluorescencyjna byla wy¬ korzystywana jako glówne zródlo oswietleniowe.Skutecznosc swietlna oraz jakosc oddawania barw przez tego rodzaju lampe polepszano poprzez mo¬ dyfikowanie konstrukcji lampy i opracowywanie nowych materialów luminoforowych. Obecnie w prawie wszystkich rodzajach lamp fluorescencyj¬ nych do celów oswietleniowych jest stosowany lu¬ minofor, który stanowi zwlaszcza halofosforan wap¬ niowy, aktywowany przez mangan i antymon, któ¬ ry to luminofor zapewnia nie tylko duza skutecz¬ nosc swietlna i dosc dobre wlasnosci oddawania barw, ale zalete jego stanowi równiez niski koszt wytwarzania. Z tego Wzgledu lampa fluorescencyj¬ na, pracujaca z wykorzystaniem wspomnianego po¬ wyzej halofosforanu wapniowego stanowiacego lu¬ minofor, jest bardzo efektywna.Jednakze, jak wspomniano powyzej, lampa flu¬ orescencyjna z halofosforanem wapniowym jako luminoforem, aktywowanym przez Mn i Sb, nie wykazuje w pelni zadowalajacej wlasnosci odda¬ wania barw. Dotychczas próbowano wprowadzac rozmaite ulepszenia dla wyeliminowania tej niedo¬ godnosci. Typowa próba ulepszenia moze byc re¬ prezentowana przez mieszanine luminoforowa. przedstawiona w japonskiej publikacji patentowej 10 15 nr 32759/1975. Proponowana tam mieszanina zmie¬ rza do poprawienia wlasciwosci oddawania barw zwyklej lampy fluorescencyjnej przez uzupelnianie niewystarczajacej energii promieniowania w za¬ kresie czerwieni wspomnianego powyzej luminofo¬ ru, stanowiacego halofosforan wapnia. Stwierdzono jednakze, ze polepszeniu wlasnosci oddawania barw towarzyszy w tym przypadku duza strata na sku¬ tecznosci swietlnej lampy fluorescencyjnej, stosu¬ jacej halofosforan wapniowy jako luminofor, akty¬ wowany przez Mn i Sb. Z tego wzgledu miesza¬ nina luminoforowa wedlug wspomnianej powyzej japonskiej publikacji patentowej ma ograniczone zastosowanie.Niedawno zostala zaproponowana lampa fluore¬ scencyjna pracujaca w ukladzie trzech pików wid¬ mowych iktóra to lampa wykorzystuje mieszanine luminoforowa, Wykazujaca rozklad widma emisyj¬ nego, posiadajacego piki o waskiej szerokosci po¬ lówkowej, znajdujace sie w trzech zakresach dlu¬ gosci fali, to znaczy zakres blekitu wokól 450 nm, zakres zieleni wokól 540 nm i zakres czerwieni wokól 610 nm.Tego rodzaju lampa zezwala na uzyskiwanie za¬ równo duzej skutecznosci swietlnej jak i dobre wlasnosci oddawania barw, a zatem budzi ona za¬ interesowanie fachowców z tej dziedziny. Zastoso¬ wana w tej lampie mieszanina luminoforowa za¬ wiera mieszanke nastepujacych luminoforów: chlo- roapatytu strontowego aktywowanego Euf+, krze- 132 5233 12£ 523 4 mianu cynkowego aktywowanego Mn!+, i tlenku itru aktywowanego Eu*+, jak opisano przykladowo w japonskim zgloszeniu patentowym nr 49-100877.Jednakze chloroapatyt strontowy aktywowany Eu*+, powoduje spadek skutecznosci swietlnej lam¬ py fluorescencyjnej. Jakkolwiek luminofor w postaci krzemianu cynku aktywówego Mn** polepsza skutecz¬ nosc swietlna, to jednak wykazuje on znaczne zmniejszenie skutecznosci swietlnej podczas stoso¬ wania lampy, a ponadto mala odpornosc w trak¬ cie stosowania tómpy. Z powyzszych wzgledów lampa fluorescencyjna, wykorzystujaca mieszani¬ ne wspomnianych powyzej tnzech luminoforów jako warstwe emitujaca swiatlo, w trakcie stosowania wykazuje zwiekszenie zmian barwy emitowanego swiatla, a takze zmniejszona skutecznosc swietlna.Zgodnie z powyzszym, celem Wynalazku jest o- pracowanie lampy fluorescencyjnej o duzej sku¬ tecznosci swietlnej i zadawalajacych wlasciwosciach oddawania "barw, Co uzyskuje "sie -prze^ zastosowa¬ nie luminoforów pozbawionych Wad zwiazanych z luminoforami znanymi.Wedlug wynalazku jest opracowana lampa fluore¬ scencyjna posiadajaca próznioszczelna banke z ele¬ ktrodami, pomiedzy którymi "zachodzi "wyladowanie W trakcie pracy lampy, przy czym banka ta jest pokryta od wewnatrz mieszanina luminoforowa, 'zawierajaca luminofor emittijaisy zielen, stanowia¬ cy zasadniczo krzemian itru, aktywowany przez cer i terb, luminofor emitujacy czerwien, stanowiacy zasadniczo tlenek itru aktywowany przez europ, i luminofor emitujacy blekit, posiadajacy widmo emi¬ syjne z pikiem usytuowanym w zakresie dlugosci fali pomiedzy 450 a 460 nm i o szerokosci polów¬ kowej mniejszej niz 50 nm.Przedmiot wyhalttzku zostanie przedstawiony na podstawie rystmku, na 'którym fig. 1 przedstawia 'wytoes rozkladu energii widma promieniowania Vsmpy fluorescencyjnej wedlug pierwszej postaci -wykonania wedlug PL PLThe subject of the invention is a fluorescent lamp with a color temperature range between 2800 and 7000 K, ensuring high luminous efficiency and satisfactory color rendering properties. For many years, a fluorescent lamp has been used as the main lighting source. the lamp has been improved by modifying the design of the lamp and developing new phosphor materials. Currently, in almost all types of fluorescent lamps, a phosphor is used for lighting purposes, which is especially calcium halophosphate, activated by manganese and antimony, which not only provides high luminous efficiency and quite good light emission properties. colors, but its advantage is also the low cost of production. For this reason, a fluorescent lamp using the above-mentioned calcium halophosphate phosphor is very efficient. with satisfactory color rendering properties. To date, various improvements have been attempted to overcome this disadvantage. A typical improvement attempt may be represented by a phosphor mixture. disclosed in Japanese Patent Publication No. 32759/1975. The mixture proposed therein aims to improve the color rendering properties of an ordinary fluorescent lamp by supplementing the insufficient energy of the red radiation of the above-mentioned calcium halophosphate phosphor. It has been found, however, that the improvement in color rendering properties is accompanied in this case by a large loss in the luminous efficiency of a fluorescent lamp using calcium halophosphate as the phosphor activated by Mn and Sb. Therefore, the phosphor mixture of the above-mentioned Japanese patent publication is of limited use. Recently, a three-peak fluorescent lamp has been proposed which uses a phosphor mixture having an emission spectrum distribution having peaks of narrow half-width, located in three wavelength ranges, i.e. the blue range around 450 nm, the green range around 540 nm and the red range around 610 nm. This type of lamp allows for both high luminous efficiency and good color rendering properties, and is therefore of interest to those skilled in the art. The phosphor mixture used in this lamp comprises a blend of the following phosphors: Euf+-activated strontium chloroapatite, Mn-+-activated zinc silicate, and Eu*+-activated yttrium oxide as described, for example, in the Japanese Patent Application No. 49-100877. However, Eu*+-activated strontium chloroapatite causes a decrease in the luminous efficiency of the fluorescent lamp. Although the Mn active zinc silicate phosphor improves luminous efficiency, it exhibits a significant reduction in luminous efficiency during lamp use, and also a low resistance during trompa use. For the above reasons, a fluorescent lamp using a mixture of the above-mentioned phosphors as the light-emitting layer exhibits an increase in the color change of the emitted light during use, as well as a reduced luminous efficiency. of luminous intensity and satisfactory color rendering properties, which is achieved by the use of phosphors free of the disadvantages associated with known phosphors. According to the invention, a fluorescent lamp has been developed having a vacuum-tight bank with electrodes During lamp operation, the bank being coated on the inside with a phosphor mixture comprising a green emitting phosphor consisting essentially of yttrium silicate activated by cerium terbium, a red emitting phosphor consisting essentially of yttrium oxide activated by europium, and a red emitting phosphor consisting essentially of yttrium oxide activated by europium, and a blue, has the emission spectrum with a peak located in the wavelength range between 450 and 460 nm and a half-width less than 50 nm. according to the first form - execution according to PL PL

Claims (6)

1. Zastrzezenia patentowe 1. Lampa fluorescencyjna, zbudowana z próznio- szczelnej banki z elektrodami, pomiedzy którymi za¬ chodzi wyladowanie podczas pracy lampy,przy czym ' wnetrze tej banki jest pokryte mieszanina lumino- forowa, znamienna tym, ze na mieszanine lumino- forowa sklada sie luminofor emitujacy zielen, sta¬ nowiacy zasadniczo krzemian itru aktywowany przez cer i terb, luminofor emitujacy czerwien, sta- 9 nowiacy zasadniczo tlenek itru aktywowany przez europ, i luminofor emitujacy blekit, posiadajacy widmo emisyjne z pikiem usytuowanym w zakre¬ sie dlugosci fali pomiedzy 450 a 460 nm i o szero¬ kosci polówkowej mniejszej niz 50 nm. 2. '1. Claims 1. Fluorescent lamp, consisting of a vacuum-tight bank with electrodes between which a discharge takes place during lamp operation, the inside of the bank being covered with a phosphor mixture, characterized in that the phosphor mixture consists of a green-emitting phosphor essentially yttrium silicate activated by cerium terbium, a red-emitting phosphor essentially yttrium oxide activated by europium, and a blue-emitting phosphor having an emission spectrum with a peak located in the wavelength range between 450 and 460 nm and a half width less than 50 nm. 2.' 2. Lampa wedlug zastrz. 1, znamienna tym, ze krzemian itru aktywowany przez cer i terb jest zastapiony czesciowo przez przynajmniej jeden wy¬ pelniacz wybrany z grupy, na która sklada sie krzemian cynku aktywowany przez mangan i ha- 1 lofosforan wapniowy aktywowany przez antymon i mangan.2. A lamp according to claim The process according to claim 1, wherein the cerium-terbium-activated yttrium silicate is partially replaced by at least one filler selected from the group consisting of manganese-activated zinc silicate and antimony-manganese activated calcium halophosphate. 3. Lampa wedlug zastrz. 2, znamienna tym, ze ilosc wypelniacza jest nie wieksza niz 40% wago¬ wo w stosunku do ilosci krzemianu itru aktywo- 15 Wanego przez cer i terb.3. A lamp according to claim 2, characterized in that the amount of filler is not more than 40% by weight relative to the amount of yttrium silicate activated by cerium and terbium. 4. Lampa wedlug zastrz. 1 albo 2, znamienna tym, ze luminofor emitujacy blekit jest wybrany z grupy, na która sklada sie chloroapatyt stronto- wo-wapniowy aktywowany przez europ dwuwar- 1 tosciowy, chloroapatyt strontowo-barowy aktywo¬ wany przez europ dwuwartosciowy oraz chloroapa¬ tyt strontowo-wapniowo-barowy aktywowany przez europ dwuwartosciowy.4. A lamp according to claim The method of claim 1 or 2, wherein the blue-emitting phosphor is selected from the group consisting of divalent euro-activated strontium-calcium chloroapatite, divalent europium-activated strontium-calcium chloroapatite, and divalent strontium-calcium chloroapatite. calcium-barium activated by divalent europium. 5. Lampa wedlug zastrz. 4, znamienna tym, ze * luminofor emitujacy blekit stanowi chloroapatyt strontowo-wapniowy aktywowany przez europ dwu¬ wartosciowy.132 523 F IG. i 100 50 F I G. 2 100 50 \132 523 F I G. 3 0.400 [ 6500K 0.350 0.300 0.300 5000K 4500K 4000K /3500K 0350 0400 0.450 F I 6. 4 100 400 500 600 700 (nm)132 523 100 F I G.5. A lamp according to claim 4, wherein the blue-emitting phosphor is divalent europium activated strontium-calcium chloroapatite. I 100 50 F and G. 2 100 50 \ 132 523 F and G. 3 0.400 [6500K 0.350 0.300 0.300 5000K 4500K 4000K /3500K 0350 0400 0.450 F and 6. 4 100 400 500 600 700 (Nm) 132 523 100 F and G. 6. .n m V PL PL6. n m V PL PL
PL1979218118A 1978-09-05 1979-09-04 Fluorescent lamp PL132523B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53108081A JPS5821380B2 (en) 1978-09-05 1978-09-05 fluorescent lamp

Publications (2)

Publication Number Publication Date
PL218118A1 PL218118A1 (en) 1980-07-28
PL132523B1 true PL132523B1 (en) 1985-03-30

Family

ID=14475381

Family Applications (1)

Application Number Title Priority Date Filing Date
PL1979218118A PL132523B1 (en) 1978-09-05 1979-09-04 Fluorescent lamp

Country Status (5)

Country Link
JP (1) JPS5821380B2 (en)
DE (1) DE2935711C2 (en)
FR (1) FR2435813A1 (en)
GB (1) GB2031454B (en)
PL (1) PL132523B1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5743350A (en) * 1980-08-29 1982-03-11 Mitsubishi Electric Corp Fluorescent lamp
JPS57207678A (en) * 1981-06-18 1982-12-20 Toshiba Corp Fluorescent lamp
JPS5920378A (en) * 1982-07-26 1984-02-02 Mitsubishi Electric Corp Fluophor and its use in low-pressure mercury vapor luminescent lamp
JP3124920B2 (en) * 1996-02-09 2001-01-15 スタンレー電気株式会社 Method for blending three-wavelength phosphor and three-wavelength fluorescent lamp using phosphor of the blending method
JP3601775B2 (en) * 1999-12-27 2004-12-15 ハリソン東芝ライティング株式会社 Backlight device and liquid crystal display device
US6472812B2 (en) * 2000-12-18 2002-10-29 Koninklijke Philips Electronics N.V. Fluorescent colortone lamp with reduced mercury
CN104560008B (en) * 2014-12-16 2016-09-28 江门市赛宁灯饰有限公司 A kind of electrodeless lamp powder batching compositions

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6811326A (en) * 1968-08-09 1970-02-11
NL164697C (en) * 1973-10-05 1981-01-15 Philips Nv LOW-PRESSURE MERCURY DISCHARGE LAMP.
NZ180650A (en) 1975-06-20 1978-11-13 Gulf Oil Corp Blasting cartidge
JPS52108674A (en) * 1976-03-10 1977-09-12 Toshiba Corp Fluorescent lamp
JPS5314983A (en) * 1976-07-28 1978-02-10 Toshiba Corp High coloring fluorescent lamp
JPS5323175A (en) * 1976-08-16 1978-03-03 Toshiba Corp Fluorescent lamp
JPS5347178A (en) * 1976-10-13 1978-04-27 Toshiba Corp Fluorescent lamp
JPS5348380A (en) * 1976-10-14 1978-05-01 Toshiba Corp Fluorescent lamp
JPH05310087A (en) * 1992-05-08 1993-11-22 Pioneer Electron Corp On-vehicle control system

Also Published As

Publication number Publication date
GB2031454B (en) 1982-08-25
PL218118A1 (en) 1980-07-28
DE2935711C2 (en) 1983-12-15
DE2935711A1 (en) 1980-03-06
GB2031454A (en) 1980-04-23
FR2435813B1 (en) 1983-01-21
JPS5535422A (en) 1980-03-12
JPS5821380B2 (en) 1983-04-28
FR2435813A1 (en) 1980-04-04

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