JPH04178492A - Aluminate fluorescent substance and fluorescent lamp using the same - Google Patents
Aluminate fluorescent substance and fluorescent lamp using the sameInfo
- Publication number
- JPH04178492A JPH04178492A JP30748090A JP30748090A JPH04178492A JP H04178492 A JPH04178492 A JP H04178492A JP 30748090 A JP30748090 A JP 30748090A JP 30748090 A JP30748090 A JP 30748090A JP H04178492 A JPH04178492 A JP H04178492A
- Authority
- JP
- Japan
- Prior art keywords
- phosphor
- fluorescent lamp
- brightness
- fluorescent
- present
- 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
Links
- 150000004645 aluminates Chemical class 0.000 title claims description 14
- 239000000126 substance Substances 0.000 title abstract 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 40
- 229910052748 manganese Inorganic materials 0.000 claims description 9
- 239000011521 glass Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 abstract description 8
- 239000002994 raw material Substances 0.000 abstract description 7
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 abstract description 2
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 abstract description 2
- 239000003795 chemical substances by application Substances 0.000 abstract description 2
- RSEIMSPAXMNYFJ-UHFFFAOYSA-N europium(III) oxide Inorganic materials O=[Eu]O[Eu]=O RSEIMSPAXMNYFJ-UHFFFAOYSA-N 0.000 abstract description 2
- 239000011656 manganese carbonate Substances 0.000 abstract description 2
- 235000006748 manganese carbonate Nutrition 0.000 abstract description 2
- 229910000016 manganese(II) carbonate Inorganic materials 0.000 abstract description 2
- 238000005406 washing Methods 0.000 abstract description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 abstract 1
- 235000012254 magnesium hydroxide Nutrition 0.000 abstract 1
- 239000000347 magnesium hydroxide Substances 0.000 abstract 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 description 11
- 229910052693 Europium Inorganic materials 0.000 description 10
- OGPBJKLSAFTDLK-UHFFFAOYSA-N europium atom Chemical compound [Eu] OGPBJKLSAFTDLK-UHFFFAOYSA-N 0.000 description 10
- 229910052684 Cerium Inorganic materials 0.000 description 7
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 7
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 7
- 239000011572 manganese Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 4
- 238000011282 treatment Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- DXNVUKXMTZHOTP-UHFFFAOYSA-N dialuminum;dimagnesium;barium(2+);oxygen(2-) Chemical group [O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Mg+2].[Mg+2].[Al+3].[Al+3].[Ba+2].[Ba+2] DXNVUKXMTZHOTP-UHFFFAOYSA-N 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 238000004020 luminiscence type Methods 0.000 description 3
- 239000011777 magnesium Substances 0.000 description 3
- 229910001635 magnesium fluoride Inorganic materials 0.000 description 3
- -1 terbium-activated cerium magnesium aluminate Chemical class 0.000 description 3
- 229910052771 Terbium Inorganic materials 0.000 description 2
- 239000004110 Zinc silicate Substances 0.000 description 2
- 239000012190 activator Substances 0.000 description 2
- 230000006690 co-activation Effects 0.000 description 2
- 238000000295 emission spectrum Methods 0.000 description 2
- ORUIBWPALBXDOA-UHFFFAOYSA-L magnesium fluoride Chemical compound [F-].[F-].[Mg+2] ORUIBWPALBXDOA-UHFFFAOYSA-L 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 230000001235 sensitizing effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- XSMMCTCMFDWXIX-UHFFFAOYSA-N zinc silicate Chemical compound [Zn+2].[O-][Si]([O-])=O XSMMCTCMFDWXIX-UHFFFAOYSA-N 0.000 description 2
- 235000019352 zinc silicate Nutrition 0.000 description 2
- IRPGOXJVTQTAAN-UHFFFAOYSA-N 2,2,3,3,3-pentafluoropropanal Chemical compound FC(F)(F)C(F)(F)C=O IRPGOXJVTQTAAN-UHFFFAOYSA-N 0.000 description 1
- KLZUFWVZNOTSEM-UHFFFAOYSA-K Aluminum fluoride Inorganic materials F[Al](F)F KLZUFWVZNOTSEM-UHFFFAOYSA-K 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 229910052810 boron oxide Inorganic materials 0.000 description 1
- 150000001785 cerium compounds Chemical class 0.000 description 1
- 229910000420 cerium oxide Inorganic materials 0.000 description 1
- HSJPMRKMPBAUAU-UHFFFAOYSA-N cerium(3+);trinitrate Chemical compound [Ce+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O HSJPMRKMPBAUAU-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 description 1
- 150000002178 europium compounds Chemical class 0.000 description 1
- 229910001940 europium oxide Inorganic materials 0.000 description 1
- AEBZCFFCDTZXHP-UHFFFAOYSA-N europium(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Eu+3].[Eu+3] AEBZCFFCDTZXHP-UHFFFAOYSA-N 0.000 description 1
- 150000002222 fluorine compounds Chemical class 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 150000002681 magnesium compounds Chemical class 0.000 description 1
- 229940093474 manganese carbonate Drugs 0.000 description 1
- 150000002697 manganese compounds Chemical class 0.000 description 1
- XMWCXZJXESXBBY-UHFFFAOYSA-L manganese(ii) carbonate Chemical compound [Mn+2].[O-]C([O-])=O XMWCXZJXESXBBY-UHFFFAOYSA-L 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 1
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical group O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- GZCRRIHWUXGPOV-UHFFFAOYSA-N terbium atom Chemical compound [Tb] GZCRRIHWUXGPOV-UHFFFAOYSA-N 0.000 description 1
- HPNURIVGONRLQI-UHFFFAOYSA-K trifluoroeuropium Chemical compound F[Eu](F)F HPNURIVGONRLQI-UHFFFAOYSA-K 0.000 description 1
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は低圧水銀放電の紫外線により緑色に発光するア
ルミン酸塩蛍光体およびこれを用いた蛍光ランプに関す
るものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an aluminate phosphor that emits green light when exposed to ultraviolet rays from a low-pressure mercury discharge, and a fluorescent lamp using the same.
従来の技術
近年、屋外でも使用できる大型カラー映像表示装置が開
発され、その普及が進んでいる。このような大型デイス
プレィの画素などに使用される平面発光形の可変色蛍光
ランプが特開昭６１−５５８５１号公報および特開平１
−１２９８４７号公報に示されている。これらの可変色
蛍光ランプは大型デイスプレィの画素とするために、Ｇ
（緑色）、Ｒ（赤色）、Ｂ（青色）に発光する蛍光体を
それぞれ単色発光させる一つまたは複数組の絵素で構成
されている。このような大型デイスプレィ用の平面発光
形質光灯ランプに用いられる蛍光体のうちでＧ成分蛍光
体としては、たとえばテルビウム付活セリウムマグネシ
ウムアルミネート（以下、ＣＡＴと略す）が使用されて
いる。2. Description of the Related Art In recent years, large color image display devices that can be used outdoors have been developed and are becoming more popular. A planar light-emitting type variable color fluorescent lamp used for pixels of such large displays is disclosed in Japanese Patent Laid-Open No. 61-55851 and Japanese Patent Laid-open No. 1
It is shown in the publication No.-129847. These variable color fluorescent lamps are used as pixels in large displays.
It is composed of one or more sets of picture elements that each emit monochromatic phosphors that emit light in green, R (red), and B (blue). Among the phosphors used in flat light emitting plasma lamps for large displays, for example, terbium-activated cerium magnesium aluminate (hereinafter abbreviated as CAT) is used as the G component phosphor.
発明が解決しようとする課頭
第３図に示すように、従来の大型デイスプレィ用の平面
発光形蛍光ランプに使用されるＧ成分蛍光体としては、
ＣＡＴで代表されるように３価のテルビウムによる発光
を利用しているため、緑色の色純度が満足なものでなく
、一般のカラーテレビに比べてデイスプレィ装置として
の色再現範囲が狭いという問題があり、その改善が望ま
れていた。同図において、Ｒ成分蛍光体は３価のユーロ
ピウムで付活されたイツトリウムオキサイド（以下、Ｙ
ＯＸと略す）、Ｂ成分蛍光体は２価のユーロピウムで付
活されたバリウムマグネシウムアルミネート（以下、Ｂ
ＡＭと略す）である。As shown in Figure 3 of the section to be solved by the invention, G component phosphors used in conventional flat-emitting fluorescent lamps for large displays include:
Since it uses light emitted from trivalent terbium, as typified by CAT, the color purity of the green color is not satisfactory, and there is a problem that the color reproduction range as a display device is narrower than that of a general color TV. There was a desire for improvement. In the figure, the R component phosphor is yttrium oxide (hereinafter referred to as Y) activated with trivalent europium.
OX), and the B component phosphor is barium magnesium aluminate (hereinafter referred to as B) activated with divalent europium.
(abbreviated as AM).
緑色発光の色純度が良好な蛍光体としては２価のマンガ
ンによる発光が適しており、蛍光ランプ用としては、２
価のマンガン付活ケイ酸亜鉛、２価のユーロピウムおよ
びマンガンで付活されたバリウムマグネシウムアルミネ
ートおよび２価のマンガンで付活されたセリウムマグネ
シウムアルミネート等が知られている。上記大型デイス
プレィ用の蛍光ランプは通常高負荷点灯されるため、２
価のマンガン付活ケイ酸亜鉛と２価のユーロピウムおよ
びマンガンで付活されたバリウムマグネシウムアルミネ
ートの場合は寿命中の輝度維持率が劣っており、また２
価のマンガンで付活されたセリウムマグネシウムアルミ
ネートの場合は寿命中の輝度維持率は良好であるが、輝
度そのものが低いという欠点があった。Divalent manganese is suitable as a phosphor that emits green light with good color purity, and divalent manganese is suitable for use in fluorescent lamps.
Known examples include zinc silicate activated with valent manganese, barium magnesium aluminate activated with divalent europium and manganese, and cerium magnesium aluminate activated with divalent manganese. The fluorescent lamps for large displays mentioned above are usually lit under high load, so
In the case of zinc silicate activated with divalent manganese and barium magnesium aluminate activated with divalent europium and manganese, the brightness maintenance rate during the life is inferior, and
In the case of cerium magnesium aluminate activated with valent manganese, the brightness maintenance rate during the life is good, but the brightness itself is low.
本発明は大型デイスプレィ用等の高負荷条件で点灯され
る蛍光ランプに用いられる蛍光体において、良好な色純
度と寿命中を通じて輝度低下の少ないアルミン酸塩蛍光
体およびこれを用いた蛍光ランプを提供するものである
。The present invention provides an aluminate phosphor with good color purity and little reduction in brightness throughout its life as a phosphor used in fluorescent lamps operated under high load conditions such as those for large displays, and a fluorescent lamp using the same. It is something to do.
課題を解決するための手段
このような問題を解決するために、本発明のアルミン酸
塩蛍光体は、
一般式：
％式％（
し、４．５≦Ｚ≦１５）で表されるものである。Means for Solving the Problems In order to solve these problems, the aluminate phosphor of the present invention is expressed by the general formula: % formula % (where 4.5≦Z≦15). be.
また、本発明の蛍光ランプは、
一般式：
％式％（
し、４．５≦２≦１５）で表されるアルミン酸塩蛍光体
からなる蛍光膜をガラス管内面に備えたものである。Further, the fluorescent lamp of the present invention is provided with a fluorescent film made of an aluminate phosphor expressed by the general formula: % (4.5≦2≦15) on the inner surface of the glass tube.
作用
本発明のアルミン酸塩蛍光体は２価のユーロピウムおよ
び３価のセリウムの２種類の共付活剤を用いているため
、その増感作用が顕著に認められ、従来の３価のセリウ
ムだけの共付活の場合に比べて明らかな輝度向上が得ら
れる。また、蛍光ランプに適用した場合にも・上記増感
作用が良好に働き、寿命中を通じて輝度低下の少ない特
性が得られる。Function Since the aluminate phosphor of the present invention uses two types of co-activators, divalent europium and trivalent cerium, its sensitizing effect is remarkable, and compared to the conventional trivalent cerium alone. A clear improvement in brightness can be obtained compared to the case of co-activation. Furthermore, when applied to a fluorescent lamp, the above-mentioned sensitizing effect works well, resulting in a property with little reduction in brightness throughout its life.
以下、本発明の実施例について説明する。Examples of the present invention will be described below.
実施例
第１図は本発明にかかるアルミン酸塩蛍光体Ｃｅ Ｍ
ｇｏ、７ｓＥ ｕｏ、ｏ＋Ｍ ｎｏ、２Ａｅ＋＋Ｏ＋ｓ
の２５４ｎｍ紫外線励起による発光スペクトル（曲線１
）を従来のＥｕを含まない
ＣｅＭｇｏ、ｓ Ｍｎｏ、２Ａｅ＋＋Ｏ＋ｓのもの（曲
線２）と比較して示したものである。第１図から明らか
なように、本発明にかかる蛍光体では３６０ｎｍ付近に
存在する３価のセリウムによる発光が低下し、４５０ｎ
ｍ付近に２価のユーロピウムによる発光が新たに得られ
ることが見いだされた。すなわち、従来の３価のセリウ
ムに２価のユーロピウムを加えた２種類の共付活剤とし
たことにより、２価のマンガンの発光が高められるとと
もに、２価のユーロピウムの発光も得られることになま
り、本発明の効果が発揮されるものである。Example FIG. 1 shows an aluminate phosphor CeM according to the present invention.
go, 7sE uo, o+M no, 2Ae++O+s
Emission spectrum (curve 1) by 254 nm ultraviolet excitation of
) is shown in comparison with that of conventional Eu-free CeMgo, s Mno, 2Ae++O+s (curve 2). As is clear from FIG. 1, in the phosphor according to the present invention, the luminescence due to trivalent cerium present in the vicinity of 360 nm decreases, and at 450 nm.
It was discovered that light emission due to divalent europium was newly obtained near m. In other words, by adding divalent europium to the conventional trivalent cerium to create two types of co-activators, the luminescence of divalent manganese can be enhanced, and the luminescence of divalent europium can also be obtained. This is where the effects of the present invention can be achieved.
また、第２図は一般式： Ｃｅ Ｍ ｇＯ，８−ｘＥ
ｕｘＭｎｏ、２Ａｅ１５０２５で表される本発明にかか
る一連の蛍光体の２５４ｎｍ紫外線励起による発光の色
度点を従来の大型デイスプレィ用の平面発光形蛍光ラン
プに用いられているＣＡＴ、ＹＯＸ。In addition, Figure 2 shows the general formula: Ce M gO, 8-xE
uxMno, 2Ae15025, the chromaticity point of the light emitted by excitation with 254 nm ultraviolet rays of the series of phosphors according to the present invention is CAT, YOX, which is used in conventional flat-emitting fluorescent lamps for large displays.
ＢＡＭのものとともにｘ、ｙ座標上に示したものである
。第２図において、Ｇ、Ｒ，Ｂは一般のカラーテレビに
用いられているＮＴＳＣ方式の色度座標である。第２図
から、本発明による蛍光体の色純度は良好であり、従来
の例えばＹＯＸおよびＢＡＭと組み合わせることにより
一般のカラーテレビと同等の色再現を実現していること
がわかる。It is shown on the x and y coordinates along with those of BAM. In FIG. 2, G, R, and B are the chromaticity coordinates of the NTSC system used in general color televisions. From FIG. 2, it can be seen that the color purity of the phosphor according to the present invention is good, and when combined with conventional phosphors such as YOX and BAM, it achieves color reproduction equivalent to that of a general color television.
本発明にかかるアルミン酸塩蛍光体は、以下の製造方法
により得ることができる。The aluminate phosphor according to the present invention can be obtained by the following manufacturing method.
蛍光体原料にはセリウム源として酸化セリウム、硝酸第
１セリウム等のセリウム化合物の中より選ばれる混合物
の少なくとも１種、マグネシウム泥上しては塩基性炭酸
マグネシウム、フッ化マグネシウム等のマグネシウム化
合物の中より選ばれる化合物の少な（とも１種、ユーロ
ピウム源として酸化ユーロピウム、フッ化ユーロピウム
等のユーロピウム化合物の中より選ばれる化合物の少な
くとも１種、マンガン源として炭酸マンガン等のマンガ
ン化合物な中から選ばれる化合物の少なくとも１種、ア
ルミニウム源として酸化アルミニウム、水酸化アルミニ
ウム等のアルミニウム化合物の中から選ばれる化合物の
少なくとも１種を用いる。これらの原料を所定量秤量し
、十分に混合する。この混合物をるつぼに入れて空気中
、１２００〜１６００℃で２〜４時間焼成する。The phosphor raw material contains at least one mixture selected from cerium compounds such as cerium oxide and cerous nitrate as a cerium source, and a magnesium compound such as basic magnesium carbonate and magnesium fluoride as a magnesium slurry. At least one compound selected from europium compounds such as europium oxide and europium fluoride as a europium source, and a compound selected from manganese compounds such as manganese carbonate as a manganese source At least one compound selected from aluminum compounds such as aluminum oxide and aluminum hydroxide is used as an aluminum source.A predetermined amount of these raw materials is weighed and mixed thoroughly.This mixture is placed in a crucible. Then, bake in air at 1,200 to 1,600°C for 2 to 4 hours.
得られた焼成物を粉砕後、るつぼに再び入れ、還元雰囲
気において１４００〜１６００℃で２〜４時間焼成する
。焼成物を粉砕、水洗等の処理を行い本発明の緑色発光
アルミン酸塩蛍光体を得た。After pulverizing the obtained fired product, it is put back into the crucible and fired at 1400 to 1600°C for 2 to 4 hours in a reducing atmosphere. The fired product was subjected to treatments such as pulverization and washing with water to obtain a green light-emitting aluminate phosphor of the present invention.
上記した本発明にかかる蛍光体の製造方法において、ア
ルミン酸塩蛍光体に用いられるフラックス材料としてよ
く知られているフッ化アルミニウムやフッ化マグネシウ
ム等のフッ化物またはホウ酸や酸化ホウ素の添加は適当
量であれば輝度向上に効果的である結果を得た。In the method for producing the phosphor according to the present invention described above, it is appropriate to add fluorides such as aluminum fluoride and magnesium fluoride, which are well-known as flux materials used in aluminate phosphors, or boric acid and boron oxide. The results showed that the amount of light was effective in improving brightness.
次に、本発明の実施例を述べる。Next, examples of the present invention will be described.
実施例ｌ
ＣｅＯ２１，００モル
Ｍｇ （ＯＨ）２ ０．７９モルＥｕ２Ｏ３
０，００５モル
ＭｎＣＯ３０，２０モル
Ａｅ２０３ ’ ５．５０モル上記原料
を十分に混合し、空気中において１４００℃で３時間焼
成する。得られた焼成物を粉砕混合後、還元性雰囲気に
おいて１６００℃で４時間焼成し粉砕、水洗、混合して
蛍光体を得た。Example l CeO2 1.00 mol Mg (OH)2 0.79 mol Eu2O3
0,005 mol MnCO30, 20 mol Ae203' 5.50 mol The above raw materials are thoroughly mixed and calcined in air at 1400° C. for 3 hours. The obtained fired product was pulverized and mixed, then fired at 1600° C. for 4 hours in a reducing atmosphere, pulverized, washed with water, and mixed to obtain a phosphor.
得られた蛍光体の組成はＣｅ （Ｍｇｏ、７ｓＥｕｏ、
ｏ＋Ｍｎｏ、２）Ａ＋！ ＋＋Ｏ＋ｓであった。この蛍
光体をガラスバルブ内面に塗布し、ＦＣＬ３０／２８蛍
光ランプを作製した。この蛍光ランプの輝度は、比較と
して焼成した従来知られている蛍光体であるＣｅ （Ｍ
ｇｏ、ｅ Ｍｎｏ２）ＡＱ ＋＋Ｏ＋ｓをを用いて同様
に作製した蛍光ランプの輝度に対して１３０％であった
。また、定格電圧での２０００時間点灯後の輝度維持率
に関しても本実施例の蛍光ランプでは９０．５％であり
、比較おして作製した蛍光ランプでは８７．０％であっ
た。すなわち、本発明による蛍光体を用いた蛍光ランプ
では輝度および輝度維持率の両者で明らかに改善された
特性が得られた。The composition of the obtained phosphor was Ce (Mgo, 7sEuo,
o+Mno, 2) A+! It was ++O+s. This phosphor was applied to the inner surface of a glass bulb to produce an FCL30/28 fluorescent lamp. The brightness of this fluorescent lamp was compared with Ce (M
The brightness was 130% of that of a fluorescent lamp similarly produced using Mno2)AQ++O+s. Furthermore, the luminance maintenance rate after 2000 hours of lighting at the rated voltage was 90.5% for the fluorescent lamp of this example, and 87.0% for the fluorescent lamp produced in comparison. That is, the fluorescent lamp using the phosphor according to the present invention had clearly improved characteristics in both brightness and brightness maintenance rate.
実施例２
Ｃｅ２（Ｎ０３）３・６Ｈ２００，５０モルＭｇＯ０，
８８モル
Ｅ ｕ ２０３ ０ 、００２５モ
ルＭｎＣＯ３０，１０モル
Ａ３２０３ ７．５０モルＭｇＦ２
０．０１５モル上記原料を用い実施例
１と同様の処理により蛍光体を得た。得られた蛍光体の
組成は
Ｃｅ （Ｍｇｏ、５ｓｓＥ ｕｏ、ｏｏｓＭｎｏ、＋ｏ
） Ａｅ １５０２５であった。Example 2 Ce2(N03)3.6H200, 50 mol MgO0,
88 mol E u 203 0 , 0025 mol MnCO30, 10 mol A3203 7.50 mol MgF2
A phosphor was obtained by the same treatment as in Example 1 using 0.015 mol of the above raw material. The composition of the obtained phosphor was Ce (Mgo, 5ssE uo, oosMno, +o
) Ae 15025.
この蛍光体をガラスバルブ内面に塗布し、ＦＣＬ３０／
２８蛍光ランプを作製した。この蛍光ランプの輝度は、
比較として焼成したＣｅ（Ｍｇｏ、ｓＭｎｏ、＋ ）
Ａ（１＋５Ｏ２ｓを用いて同様に作製した蛍光ランプの
輝度に対して１２０％であった。また、定格電圧での２
０００時間点灯後の輝度維持率に関しても本実施例の蛍
光ランプでは９２．０％であり、比較として作製したラ
ンプでは８９．０％であった。This phosphor is applied to the inner surface of the glass bulb, and FCL30/
28 fluorescent lamps were fabricated. The brightness of this fluorescent lamp is
Calcined Ce (Mgo, sMno, +) for comparison
The brightness was 120% of that of a fluorescent lamp made in the same way using A(1+5O2s.
The luminance maintenance rate after lighting for 000 hours was 92.0% for the fluorescent lamp of this example, and 89.0% for the lamp prepared as a comparison.
すなわち、本発明による蛍光体を用いたランプでは輝度
および輝度維持率の両者で明らかに改善された特性が得
られ本発明の効果が認められた。That is, the lamp using the phosphor according to the present invention had clearly improved characteristics in both brightness and brightness maintenance rate, and the effects of the present invention were recognized.
実施例３
Ｃｅｎ２ １．００モルＭｇ （ＯＨ
）２ ０．８０モルＥｕ２Ｏ３０，０２５
モル
ＭｎＣＯ３０，１５モル
ＡＱ、２０３ ６．００モル８３ＢＯ
３０，００３モル
上記原料を用い実施例１と同様の処理により蛍光体を得
た。得られた蛍光体の組成は
Ｃｅ（八４ｇｏ、ｓ Ｅ ｕｏ、ｏｓＭｎｏ、＋ｓ）
ＡＱ １２０２０．５であった。この蛍光体をガラスバ
ルブ内面に塗布し、Ｆ ＣＬ ３０／２８蛍光ランプを
作製した。Example 3 Cen2 1.00 mol Mg (OH
)2 0.80 mol Eu2O30,025
mol MnCO30, 15 mol AQ, 203 6.00 mol 83 BO
A phosphor was obtained by the same treatment as in Example 1 using 30,003 mol of the above raw materials. The composition of the obtained phosphor is Ce (84go, s E uo, osMno, +s)
AQ was 12020.5. This phosphor was applied to the inner surface of a glass bulb to produce an F CL 30/28 fluorescent lamp.
この蛍光ランプの輝度は、比較として焼成したＣ ｅ
（Ｍｇｏ、ｓｓＭｎｏ、＋ｓ） Ａｅ １２０２０．５
を用いて同様に作製した蛍光ランプの輝度に対して１１
７％であった。また、定格電圧での２０００時間点灯後
の輝度維持率に関しても本実施例の蛍光ランプでは９１
．０％であり、比較として作製した蛍光ランプでは８９
．０％であった。The brightness of this fluorescent lamp is the same as that of the fired C e
(Mgo, ssMno, +s) Ae 12020.5
11 for the brightness of a fluorescent lamp made in the same way using
It was 7%. In addition, the luminance maintenance rate after 2000 hours of lighting at the rated voltage was 91 for the fluorescent lamp of this example.
．． 0%, and in the fluorescent lamp made as a comparison, it was 89%.
．． It was 0%.
すなわち、本発明による蛍光体を用いたランプでは輝度
および輝度維持率の両者で明らかに改善された特性が得
られ本発明の効果が認められた。That is, the lamp using the phosphor according to the present invention had clearly improved characteristics in both brightness and brightness maintenance rate, and the effects of the present invention were recognized.
実施例４
Ｃｅ２ （ＣＯ３）３ ・６８２０ ０．５０モルＭ
ｇ（ＯＨ）２ ０．４０モルＥｕ２Ｏ３０
，１０モル
ＭｎＣＯ３０，４０モル
Ａｅ （ＯＨ）３ ２０．００−Ｅル
上記原料を用い実施例１と同様の処理により蛍光体を得
た。得られた蛍光体の組成は
Ｃｅ （Ｍｇｏ４Ｅｕａ、２Ｍｎｏ４＞ ＡＱ ２００
３２．５であった。この蛍光体をガラスバルブ内面に塗
布し、ＦＣＬ３０／２８蛍光ランプを作製した。Example 4 Ce2 (CO3)3 ・6820 0.50 mol M
g(OH)2 0.40 mol Eu2O30
, 10 mol MnCO30, 40 mol Ae(OH)3 20.00-El A phosphor was obtained by the same treatment as in Example 1 using the above raw materials. The composition of the obtained phosphor was Ce (Mgo4Eua, 2Mno4>AQ 200
It was 32.5. This phosphor was applied to the inner surface of a glass bulb to produce an FCL30/28 fluorescent lamp.
この蛍光ランプの輝度は、比較として焼成したＣ ｅ
（Ｍｇｏ、＋Ｍ−ｎｏ４） Ａｅ ２００３２．５を用
いて同様に作製したランプの輝度に対して１１０％であ
った。また、定格電圧での２０００時間点灯後の輝度維
持率に関しても本実施例の蛍光ランプでは８９．０％で
あり、比較として作製した蛍光ランプでは８５．０％で
あった。The brightness of this fluorescent lamp is the same as that of the fired C e
(Mgo, +M-no4) The brightness was 110% of the brightness of a lamp similarly produced using Ae 20032.5. Furthermore, the luminance maintenance rate after 2000 hours of lighting at the rated voltage was 89.0% for the fluorescent lamp of this example, and 85.0% for the fluorescent lamp prepared as a comparison.
すなわち、本発明による蛍光体を用いた蛍光ランプでは
輝度および輝度維持率の両者で明らかに改善された特性
が得られ本発明の効果が認められる。That is, the fluorescent lamp using the phosphor according to the present invention has clearly improved characteristics in both brightness and brightness maintenance rate, and the effects of the present invention are recognized.
なお、本発明にかかるアルミン酸塩蛍光体は前記大型デ
イスプレィ用の平面発光形蛍光ランプや高負荷で点灯さ
れる一般照明用の蛍光ランプにおいてのみならず、真空
紫外域の励起を利用する蛍光ランプ分野においてもその
効果が認められるものである。The aluminate phosphor according to the present invention is used not only in flat-emitting fluorescent lamps for large displays and fluorescent lamps for general lighting that are lit under high loads, but also in fluorescent lamps that utilize excitation in the vacuum ultraviolet region. Its effects are recognized in the field as well.
発明の詳細
な説明したように、本発明によれば、２価のユーロピウ
ムおよび３価のセリウムの２種類の共付活剤を同時に使
用することにより、従来の３価のセリウムだけの共付活
では得られなかった高輝度でかつ寿命中を通じて輝度維
持率の良好な２価のマンガンによる緑色発光蛍光体が得
られるものである。また、本発明にかかる蛍光体を大型
デイスプレィ用の平面発光形蛍光ランプや高負荷で点灯
される蛍光ランプに適用することにより、その色純度の
良好な緑色発光を利用できるものである。As described in detail, according to the present invention, by simultaneously using two types of coactivators, divalent europium and trivalent cerium, the conventional coactivation of only trivalent cerium can be achieved. It is possible to obtain a green-emitting phosphor made of divalent manganese that has high brightness and has a good brightness maintenance rate throughout its life, which could not be obtained with other methods. Further, by applying the phosphor according to the present invention to a flat-emitting type fluorescent lamp for a large display or a fluorescent lamp that is lit under high load, the green light emission with good color purity can be utilized.
第１図は本発明にかかるアルミン酸塩蛍光体の発光スペ
クトルを従来のものと比較して示す図、第２図は本発明
の実施例１の蛍光体の色度をＸ。
ｙ色度図上に示す図、第３図は従来の大型デイスプレィ
用に用いられている平面発光形蛍光ランプのＢ、Ｇ、Ｒ
の色度をｘ、ｙ色度図上に示す図である。
代理人の氏名 弁理士小蝦治明 ほか２名区
爬 投 軒 髪 Ｒ
憾
第２図１FIG. 1 is a diagram showing the emission spectrum of the aluminate phosphor according to the present invention in comparison with that of a conventional one, and FIG. 2 shows the chromaticity of the phosphor of Example 1 of the present invention. The diagram shown on the y-chromaticity diagram, Figure 3, shows B, G, and R of a flat-emitting fluorescent lamp used for conventional large displays.
It is a diagram showing the chromaticity of on an x,y chromaticity diagram. Name of agent: Patent attorney Haruaki Koebi and 2 others
Rage Throw Eaves Hair R Sorry Figure 2 1
Claims (2)
＿＋＿３＿ｚ（ただし、４．５≦ｚ≦１５）で表される
ことを特徴とするアルミン酸塩蛍光体。(1) General formula: Ce(Mg, Eu, Mn)Al_2_zO_2_. ＿５
An aluminate phosphor represented by ___+_3_z (4.5≦z≦15).
＿＋＿３＿ｚ（ただし、４．５≦ｚ≦１５）で表される
アルミン酸塩蛍光体からなる蛍光膜をガラス管内面に備
えたことを特徴とする蛍光ランプ。(2) General formula: Ce(Mg, Eu, Mn)Al_2_zO_2_. ＿５
A fluorescent lamp characterized in that a fluorescent film made of an aluminate phosphor represented by ___+_3_z (4.5≦z≦15) is provided on the inner surface of a glass tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30748090A JP2753138B2 (en) | 1990-11-13 | 1990-11-13 | Aluminate phosphor and fluorescent lamp using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30748090A JP2753138B2 (en) | 1990-11-13 | 1990-11-13 | Aluminate phosphor and fluorescent lamp using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04178492A true JPH04178492A (en) | 1992-06-25 |
| JP2753138B2 JP2753138B2 (en) | 1998-05-18 |
Family
ID=17969591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30748090A Expired - Fee Related JP2753138B2 (en) | 1990-11-13 | 1990-11-13 | Aluminate phosphor and fluorescent lamp using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2753138B2 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4415578B2 (en) | 2003-06-30 | 2010-02-17 | パナソニック株式会社 | Plasma display device |
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1990
- 1990-11-13 JP JP30748090A patent/JP2753138B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2753138B2 (en) | 1998-05-18 |
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