JPH02208389A - Phosphor and fluorescent lamp - Google Patents
Phosphor and fluorescent lampInfo
- Publication number
- JPH02208389A JPH02208389A JP2858089A JP2858089A JPH02208389A JP H02208389 A JPH02208389 A JP H02208389A JP 2858089 A JP2858089 A JP 2858089A JP 2858089 A JP2858089 A JP 2858089A JP H02208389 A JPH02208389 A JP H02208389A
- Authority
- JP
- Japan
- Prior art keywords
- phosphor
- fluorescent lamp
- divalent
- general formula
- blue
- 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
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 229910000420 cerium oxide Inorganic materials 0.000 claims abstract description 18
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims abstract description 18
- 150000004645 aluminates Chemical class 0.000 claims abstract description 8
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 4
- 229910052693 Europium Inorganic materials 0.000 abstract description 5
- 238000000576 coating method Methods 0.000 abstract description 4
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052753 mercury Inorganic materials 0.000 abstract description 4
- 239000011248 coating agent Substances 0.000 abstract description 3
- 229910052748 manganese Inorganic materials 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 abstract 1
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 230000005284 excitation Effects 0.000 description 4
- 239000011572 manganese Substances 0.000 description 4
- OGPBJKLSAFTDLK-UHFFFAOYSA-N europium atom Chemical compound [Eu] OGPBJKLSAFTDLK-UHFFFAOYSA-N 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 229910052684 Cerium Inorganic materials 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 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 2
- 239000000839 emulsion Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- UGZADUVQMDAIAO-UHFFFAOYSA-L zinc hydroxide Chemical compound [OH-].[OH-].[Zn+2] UGZADUVQMDAIAO-UHFFFAOYSA-L 0.000 description 1
- 229940007718 zinc hydroxide Drugs 0.000 description 1
- 229910021511 zinc hydroxide Inorganic materials 0.000 description 1
Landscapes
- Luminescent Compositions (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
本発明は２価のＥｕまたは２価のＥｕとＭｎとで付活さ
れた青色ないし青緑色発光蛍光体に係り、特に管壁負荷
の高い圧波長域発光形蛍光ランプ用に好適な青色ないし
、青緑色発光蛍光体および蛍光ランプに関する。[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to a blue to blue-green emitting phosphor activated with divalent Eu or divalent Eu and Mn, and particularly The present invention relates to a blue to blue-green emitting phosphor and a fluorescent lamp suitable for pressure wavelength range fluorescent lamps with high tube wall loads.
（従来の技術）
近年一般照明蛍光ランプとして、高演色性と高効率性と
を同時に満足する圧波長域発光形蛍光ランプの普及には
目ざましいものがある。この種の蛍光ランプには比較的
狭帯域の発光スペクトル分布を有する青色、緑色、赤色
発光蛍光体が用いられている。(Prior Art) In recent years, as general lighting fluorescent lamps, pressure wavelength range fluorescent lamps that simultaneously satisfy high color rendering properties and high efficiency have become widespread. This type of fluorescent lamp uses blue, green, and red emitting phosphors that have a relatively narrow emission spectral distribution.
従来２価のユーロピウム（Ｅｕ）で付活された青色発光
アルミン酸塩蛍光体としては、［ａ （Ｍ 、 Ｅｕ）
○・ｂＡＩ２２０３コ（特公昭５８−２２４９５号公報
及び特公昭５２−２２８３６号公報）があり、２価のユ
ーロピウム（Ｅｕ）並びにマンガン（Ｍｎ）とで付活さ
れたアルミン酸塩蛍光体としては、［ａ （Ｍ 、Ｅｕ
、 Ｍｎ） Ｏ−ｂ Ａｘ２ｏ３］（特公昭５６〜５２
０７２号公報及び特公昭５ｇ−２２４９６号公報）が知
られている。更には、２価のユーロピウム（Ｅｕ）で付
活されたハロ燐酸塩蛍光体としては、［（Ｍ’、１Ｅｕ
）ｉｏ（ＰＯ４）−・Ｘ２］ （特公昭４６−４０６０
４号公報及び特公昭４８−３３１５９号公報）が知られ
ている。Conventional blue-emitting aluminate phosphors activated with divalent europium (Eu) include [a (M, Eu)
○・bAI2203 (Japanese Patent Publication No. 58-22495 and Japanese Patent Publication No. 52-22836) is an aluminate phosphor activated with divalent europium (Eu) and manganese (Mn). [a (M, Eu
, Mn) O-b Ax2o3]
No. 072 and Japanese Patent Publication No. 5g-22496) are known. Furthermore, as a halophosphate phosphor activated with divalent europium (Eu), [(M', 1Eu
)io(PO4)-・X2]
4 and Japanese Patent Publication No. 48-33159) are known.
ところで、圧波長域発光形蛍光ランプでは、その全光束
（発光出力）に対して青色発光蛍光体の寄与する割合は
非常に小さいが、圧波長域発光形蛍光ランプに用いられ
る青色発光蛍光体としては、出来るだけ粒度が小さく、
発光出力の高いことが必要である。By the way, in pressure wavelength range fluorescent lamps, the contribution of the blue-emitting phosphor to the total luminous flux (emission output) is very small. The particle size is as small as possible,
It is necessary to have high luminous output.
この様な青色発光蛍光体に関し、管壁負荷が０．０５Ｗ
／ａＪ以上の蛍光ランプに適用しその種々の特性を評価
したところ、点灯中の色度（ｘ、ｙ）の変動が赤色発光
蛍光体や緑色発光蛍光体に比し、大きいという結果が得
られた。それ故、管壁負荷が０．０５Ｗ／ｃＪ以上の圧
波長域発光形蛍光ランプにおける点灯中の色度（ｘ、ｙ
）の変動（即ち色温度の変動）にも大きく影響を及ぼし
、著しく商品価値を損ねていた。Regarding such a blue-emitting phosphor, the tube wall load is 0.05W.
When applied to fluorescent lamps of /aJ or more and evaluated their various characteristics, the results showed that the fluctuation in chromaticity (x, y) during lighting was larger than that of red-emitting phosphors and green-emitting phosphors. Ta. Therefore, the chromaticity (x, y
) (i.e., color temperature variations), which significantly impairs commercial value.
（発明が解決しようとする課題）
以上概説したように、三液長域発光形蛍光ランプ用青色
発光蛍光体としては、出来るだけ粒度が小さく、発光出
力が高く、かつ蛍光ランプ点灯中の色度（ｘ、ｙ）の変
動の小さいものの出現が望まれている。(Problems to be Solved by the Invention) As outlined above, as a blue-emitting phosphor for a three-component long-range fluorescent lamp, the particle size is as small as possible, the luminous output is high, and the chromaticity during lighting of the fluorescent lamp is as low as possible. It is desired that the variation of (x, y) be small.
そこで本発明は上記課題を解決するためになされたもの
で、２５４ｎｍ水銀輝線励起下で高い発光出力を示し、
かつ高負荷蛍光ランプ（０，０５Ｗ／ｄ以上）での点灯
中の色度（ｘ、ｙ）の変動の小さい青色発光蛍光体を提
供することを目的とする。Therefore, the present invention was made to solve the above problems, and exhibits high luminous output under 254 nm mercury emission line excitation,
Another object of the present invention is to provide a blue-emitting phosphor that exhibits small fluctuations in chromaticity (x, y) during lighting in a high-load fluorescent lamp (0.05 W/d or more).
（課題を解決するための手段）
本発明は青色発光蛍光体として、０．００３〜０．５重
量％の範囲の酸化セリウム（ＣｅＯ２）を表面に被覆し
たことを特徴とするものである。また、青色発光蛍光体
の母体としては、一般式ａ （Ｍ、 Ｅｕ）Ｏ−ｂＡＱ
２０３（但し、ＭはＺｎ、 Ｍｇ、 Ｃａ、 Ｓｒ、
Ｂａ、 Ｌｉ、 Ｒｂ。(Means for Solving the Problems) The present invention is characterized in that the surface of the blue-emitting phosphor is coated with 0.003 to 0.5% by weight of cerium oxide (CeO2). In addition, as a matrix for the blue-emitting phosphor, the general formula a (M, Eu)O-bAQ
203 (However, M is Zn, Mg, Ca, Sr,
Ba, Li, Rb.
Ｃｓからなる群から選定する一種以上で、かつａ〉０、
ｂ＞Ｏ）で表される２価のＥｕ付活アルミン酸塩蛍光体
、あるいは一般式ａ （Ｍ、 Ｅｕ、 Ｍｎ）Ｏ−ｂＡ
Ｑ２０３（但し、ＭはＺｎ、 Ｍｇ、 Ｃａ、 Ｓｒ、
Ｂａ、 Ｌｉ、 Ｒｂ。one or more selected from the group consisting of Cs, and a>0,
b > O) divalent Eu-activated aluminate phosphor, or general formula a (M, Eu, Mn)O-bA
Q203 (However, M is Zn, Mg, Ca, Sr,
Ba, Li, Rb.
Ｃｓからなる群から選定する一種以上で、かつａ〉０、
ｂ＞Ｏ）で表される２価のＥｕ、 Ｍｎ付活アルミン酸
塩蛍光体、あるいは一般式（Ｍ′、Ｅｕ）１ｏ（ＰＯ４
）ＧＸ、 （但し、Ｍ′はＭｇ、 Ｃａ、 Ｓｒ、 Ｂ
ａからなる群から選定する一種以上で、かつＸはＦ 、
ＣＱ、 Ｂｒからなる群から選定する一種以」二）で
表される２価のＥｕ付活ハロ燐酸塩蛍光体が適用される
。one or more selected from the group consisting of Cs, and a>0,
b>O), Mn-activated aluminate phosphor, or general formula (M', Eu)1o(PO4
)GX, (However, M' is Mg, Ca, Sr, B
one or more selected from the group consisting of a, and X is F,
A divalent Eu-activated halophosphate phosphor represented by one or more selected from the group consisting of CQ and Br is applied.
本発明の青色発光蛍光体は２５４ｎｍ水銀輝線励起下で
高い発光出力を示し、かつ高負荷蛍光ランプ（０，０５
Ｗ／ａＩＴ以上）での点灯中の色度（ｘ、ｙ）の変動の
小さい良好な特性を有するものである。The blue-emitting phosphor of the present invention exhibits high luminous output under 254 nm mercury emission line excitation, and has a high luminescence output under high-load fluorescent lamp (0.05
It has good characteristics with small fluctuations in chromaticity (x, y) during lighting at W/aIT or higher).
（作用）
上述した作用効果は、管壁負荷が０．０５Ｗ／ＣＩＩ？
以上の蛍光ランプにおいて顕著なものとなる。０．０５
Ｗ／ｃｄ以下の蛍光ランプにおいては、その作用効果は
ほとんど認められないか、またはその程度は小さい。(Function) The above-mentioned effect is that the tube wall load is 0.05W/CII?
This is noticeable in the above fluorescent lamps. 0.05
In a fluorescent lamp of W/cd or less, the effect is hardly recognized or its effect is small.
第１表及び第２表は、本発明の作用効果を説明するため
のものである。本発明の蛍光体と従来のものと比較した
場合、本発明のＣｅＯ２にて表面を被覆した蛍光体の方
が発光出力では従来のものとほぼ同等であるが、高負荷
蛍光ランプ（０，０５Ｗ／ａＩＴ以上）での点灯中の色
度（ｘ、ｙ）の変動の小さく、良好であることがわかる
。Tables 1 and 2 are for explaining the effects of the present invention. When comparing the phosphor of the present invention with the conventional one, the phosphor whose surface is coated with CeO2 of the present invention has almost the same luminous output as the conventional one, but the high-load fluorescent lamp (0.05W /aIT or higher), the variation in chromaticity (x, y) during lighting is small and good.
なお、ＣｅＯ２濃度が０．５以上では、発光出力の低下
が大きく、かつ点灯中の色度（ｘ、ｙ）の変動も大きく
なる。また、０．００３％以下では、点灯中の色度（ｘ
、ｙ）の変動が大きくなる。以上のことから、青色発光
蛍光体表面に０．００３％以上０．５％以下の範囲のＣ
ｅＯ２を被覆することにより、２５４ｎｍ水銀輝線励起
下で高い発光輝度を有し、かつ高負荷蛍光ランプ（０，
０５Ｗ／ｃｉ以上）での点灯中の色度（ｘ、ｙ）の変動
の小さい蛍光体を製造しうるものであり、実用化の寄与
は大なるものがある。Note that when the CeO2 concentration is 0.5 or more, the light emission output decreases significantly, and the variation in chromaticity (x, y) during lighting also increases. In addition, if the chromaticity (x
, y) becomes larger. From the above, it is found that C in the range of 0.003% to 0.5% on the surface of the blue-emitting phosphor.
By coating eO2, it has high emission brightness under 254 nm mercury emission line excitation, and is suitable for high-load fluorescent lamps (0,
This makes it possible to produce a phosphor with small fluctuations in chromaticity (x, y) during lighting at a power of 0.05 W/ci or higher), and it will greatly contribute to its practical application.
（実施例）
本発明の蛍光体は以下のようにして合成することができ
る。(Example) The phosphor of the present invention can be synthesized as follows.
実施例−１
３（Ｂａｏ、３ｎＥｕ−ｎ、ｏａＭｇｏ、ｃ７）Ｏ’
８ＡＲ２０ａで表される青色発光蛍光体２００ ｇ
を秤量する。まず、青色発光蛍光体に対して０．０５重
量％の酸化セリウム（ＣｅＯ２）微粉末を０．１０ ｇ
採取し、そのＣｅＯ２をアクリルエマルジョン溶液中に
懸濁させる。その後青色発光蛍光体を投入し、十分に撹
拌した後、懸濁液を濾過、乾燥する。その結果、０．０
５重量％の酸化セリウムを表面に被覆した青色発光蛍光
体が得られる。この蛍光体を通常の方法で４ワツト蛍光
ランプＦ Ｌ −４（１５，５＋ｎｍ ＄ ）（管壁負
荷ｏ、ｔ１ｗ／ａ＃）を製作し、蛍光ランプの初期（製
作直後）発光出力と色度（ｘ＋ｙ）及び５００時間経過
後の蛍光ランプの色度（ｘ、ｙ）を測定した。Example-1 3(Bao, 3nEun, oaMgo, c7)O'
200 g of blue-emitting phosphor represented by 8AR20a
Weigh. First, 0.10 g of 0.05% by weight cerium oxide (CeO2) fine powder was added to the blue-emitting phosphor.
The CeO2 is suspended in an acrylic emulsion solution. Thereafter, a blue-emitting phosphor is added, and after thorough stirring, the suspension is filtered and dried. As a result, 0.0
A blue-emitting phosphor whose surface is coated with 5% by weight of cerium oxide is obtained. A 4-watt fluorescent lamp FL-4 (15,5+nm $) (tube wall load o, t1w/a#) was manufactured using this phosphor in the usual manner, and the initial (immediately after manufacturing) luminous output and chromaticity of the fluorescent lamp were measured. (x+y) and the chromaticity (x, y) of the fluorescent lamp after 500 hours were measured.
この蛍光体からなる蛍光膜を備えた蛍光ランプの例を第
１図に示す。蛍光ランプは図に示すように、バルブ■内
面に被着された蛍光膜を備え、さらにバルブ（ト）内に
所定圧の放電用ガスを封入してなり、バルブ■の両端部
に取付けられた電極■に所定電圧を印加し、励起源によ
って蛍光膜■が発光するものである。An example of a fluorescent lamp equipped with a fluorescent film made of this phosphor is shown in FIG. As shown in the figure, a fluorescent lamp is equipped with a fluorescent film coated on the inner surface of the bulb, and a discharge gas of a predetermined pressure is sealed inside the bulb, which is attached to both ends of the bulb. A predetermined voltage is applied to the electrode (2), and the fluorescent film (2) emits light due to the excitation source.
比較品として、同じ青色発光蛍光体で、酸化セリウムを
被着しないもので、同様の蛍光ランプを製作し、比較し
た結果を以下の第１表に示す。As a comparative product, a similar fluorescent lamp was manufactured using the same blue-emitting phosphor but without cerium oxide coating, and the comparison results are shown in Table 1 below.
（以下余白）
第１表
本発光出力はｎ＝１００本の相対発光出力の平均値＊色
度（ｘ、ｙ）の変動はｎ ＝ １００本のときの５００
時間後のＸ値−０時間のＸ値の平均値及び５００時間後
のｙ値−０時間のｙ値の平均値
第１表に示す通り、本発明による青色発光蛍光体を用い
た蛍光ランプは初期発光出力は従来のものに比し、はぼ
同等であるが、点灯中の色度（ｘ＋ｙ）の変動が極めて
小さく、著しく特性が向上していることがわかる。(Leaving space below) Table 1: The actual light output is the average value of the relative light output of n = 100 lights *The variation in chromaticity (x, y) is 500 when n = 100 lights.
X value after hours - average value of X value at 0 hours and y value after 500 hours - average value of y values at 0 hours As shown in Table 1, the fluorescent lamp using the blue-emitting phosphor according to the present invention Although the initial light emission output is almost the same as that of the conventional one, the variation in chromaticity (x+y) during lighting is extremely small, indicating that the characteristics are significantly improved.
次に、実施例−１と同様な方法で蛍光体の種類及び酸化
セリウムの濃度を変えて評価した結果を第２表に示し、
これを実施例２〜１３とした。Next, Table 2 shows the results of evaluation by changing the type of phosphor and the concentration of cerium oxide in the same manner as in Example-1.
This was designated as Examples 2 to 13.
（以下余白）
なお、青色発光蛍光体表面に酸化セリウム（Ｃ；ｅｏ２
）を被覆する方法としては、実施例−１において、アク
リルエマルジョンを用いる例を記述したが、その他に酸
化セリウム微粉末と水酸化アルミニウムや酸化セリウム
微粉末と水酸化亜鉛、更にはセリウムを含有する溶液、
例えば硝酸セリウムやセリウム・アセチルアヤトン錯体
を用いることができる。(Left below) Note that cerium oxide (C; eo2
) was described in Example 1 using an acrylic emulsion, but other coating methods include cerium oxide fine powder and aluminum hydroxide, cerium oxide fine powder and zinc hydroxide, and further cerium. solution,
For example, cerium nitrate or a cerium acetyl ayatone complex can be used.
以上説明したように、本発明により発光出力の高い、か
つ高負荷蛍光ランプ（０，０５Ｗ／ｃＪ以上）での点灯
中の色度（ｘ、ｙ）の変動の小さい青色発光蛍光体を実
現することができる。As explained above, the present invention realizes a blue-emitting phosphor that has high light emission output and has small fluctuations in chromaticity (x, y) during lighting in a high-load fluorescent lamp (0.05 W/cJ or more). be able to.
第１図は本発明の蛍光体からなる蛍光膜を被着形成した
蛍光ランプを一部断面して示す正面図である。
代理人 弁理士 則 近 憲 佑
同 竹花喜久男
］］FIG. 1 is a front view, partially in section, of a fluorescent lamp on which a fluorescent film made of the phosphor of the present invention is deposited. Agent: Patent Attorney: Nori Chika, Yudo, Kikuo Takehana]]
Claims (4)
ンプ用蛍光体であって、酸化セリウムを０．００３〜０
．５重量％蛍光体表面に被覆したことを特徴とする一般
式ａ（Ｍ，Ｅｕ）Ｏ・ｂＡｌ＿２Ｏ＿３で表される２価
のＥｕ付活アルミン酸塩蛍光体。（但し、ＭはＺｎ、Ｍ
ｇ、Ｃａ、Ｓｒ、Ｂａ、Ｌｉ、Ｒｂ、Ｃｓの中から選ば
れた少なくとも一種、ａ＞０、ｂ＞０）(1) A phosphor for a fluorescent lamp with a tube wall load of 0.05 W/cm^2 or more, containing 0.003 to 0 cerium oxide.
．． A divalent Eu-activated aluminate phosphor represented by the general formula a(M,Eu)O.bAl_2O_3, characterized in that the surface of the phosphor is coated with 5% by weight. (However, M is Zn, M
at least one selected from g, Ca, Sr, Ba, Li, Rb, Cs, a>0, b>0)
ンプ用蛍光体であって、酸化セリウムを０．００３〜０
．５重量％蛍光体表面に被覆したことを特徴とする一般
式ａ（Ｍ，Ｅｕ，Ｍｎ）Ｏ・ｂＡｌ＿２Ｏ＿３で表され
る２価のＥｕ、Ｍｎ付活アルミン酸塩蛍光体。（但し、
ＭはＺｎ、Ｍｇ、Ｃａ、Ｓｒ、Ｂａ、Ｌｉ、Ｒｂ、Ｃｓ
の中から選ばれた少なくとも一種、ａ＞０、ｂ＞０）(2) A phosphor for a fluorescent lamp with a tube wall load of 0.05 W/cm^2 or more, containing 0.003 to 0 cerium oxide.
．． A divalent Eu, Mn activated aluminate phosphor represented by the general formula a(M,Eu,Mn)O.bAl_2O_3, characterized in that the surface of the phosphor is coated with 5% by weight. (however,
M is Zn, Mg, Ca, Sr, Ba, Li, Rb, Cs
At least one selected from the following, a>0, b>0)
ンプ用蛍光体であって、酸化セリウムを０．００３〜０
．５重量％蛍光体表面に被覆したことを特徴とする一般
式（Ｍ′，Ｅｕ）＿１＿０（ＰＯ＿４）＿６・Ｘ＿２で
表される２価のＥｕ付活ハロ燐酸塩蛍光体。（但し、Ｍ
′はＭｇ、Ｃａ、Ｓｒ、Ｂａの中から選ばれた少なくと
も一種、ＸはＦ、Ｃｌ、Ｂｒの中から選ばれた少なくと
も一種）(3) A phosphor for a fluorescent lamp with a tube wall load of 0.05 W/cm^2 or more, containing 0.003 to 0 cerium oxide.
．． A divalent Eu-activated halophosphate phosphor represented by the general formula (M',Eu)_1_0(PO_4)_6·X_2, characterized in that the surface of the phosphor is coated with 5% by weight. (However, M
' is at least one selected from Mg, Ca, Sr, and Ba; X is at least one selected from F, Cl, and Br)
被着形成したことを特徴とする管壁負荷が０．０５Ｗ／
ｃｍ＾２以上の蛍光ランプ。(4) A tube wall load of 0.05 W/L, characterized in that a fluorescent film made of the phosphor according to claims 1 to 3 is deposited and formed.
Fluorescent lamp of cm^2 or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2858089A JP2703312B2 (en) | 1989-02-09 | 1989-02-09 | Phosphors and fluorescent lamps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2858089A JP2703312B2 (en) | 1989-02-09 | 1989-02-09 | Phosphors and fluorescent lamps |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02208389A true JPH02208389A (en) | 1990-08-17 |
| JP2703312B2 JP2703312B2 (en) | 1998-01-26 |
Family
ID=12252539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2858089A Expired - Lifetime JP2703312B2 (en) | 1989-02-09 | 1989-02-09 | Phosphors and fluorescent lamps |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2703312B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04236294A (en) * | 1991-01-14 | 1992-08-25 | Nichia Chem Ind Ltd | Treatment of surface of fluorescent substance |
-
1989
- 1989-02-09 JP JP2858089A patent/JP2703312B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04236294A (en) * | 1991-01-14 | 1992-08-25 | Nichia Chem Ind Ltd | Treatment of surface of fluorescent substance |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2703312B2 (en) | 1998-01-26 |
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