JPH0480285A - Fluorescent high-pressure mercury lamp - Google Patents
Fluorescent high-pressure mercury lampInfo
- Publication number
- JPH0480285A JPH0480285A JP19529290A JP19529290A JPH0480285A JP H0480285 A JPH0480285 A JP H0480285A JP 19529290 A JP19529290 A JP 19529290A JP 19529290 A JP19529290 A JP 19529290A JP H0480285 A JPH0480285 A JP H0480285A
- Authority
- JP
- Japan
- Prior art keywords
- phosphor
- pressure mercury
- activated
- mercury lamp
- europium
- 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
Links
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 229910052753 mercury Inorganic materials 0.000 title claims abstract description 39
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 38
- 229910052693 Europium Inorganic materials 0.000 claims abstract description 16
- OGPBJKLSAFTDLK-UHFFFAOYSA-N europium atom Chemical compound [Eu] OGPBJKLSAFTDLK-UHFFFAOYSA-N 0.000 claims abstract description 16
- QWVYNEUUYROOSZ-UHFFFAOYSA-N trioxido(oxo)vanadium;yttrium(3+) Chemical compound [Y+3].[O-][V]([O-])([O-])=O QWVYNEUUYROOSZ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052684 Cerium Inorganic materials 0.000 claims abstract description 6
- 229910052771 Terbium Inorganic materials 0.000 claims abstract description 6
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000011248 coating agent Substances 0.000 claims abstract description 6
- 238000000576 coating method Methods 0.000 claims abstract description 6
- OTCUBYPHLVALCK-UHFFFAOYSA-N magnesium yttrium(3+) borate Chemical compound B([O-])([O-])[O-].[Mg+2].[Y+3] OTCUBYPHLVALCK-UHFFFAOYSA-N 0.000 claims abstract description 6
- GZCRRIHWUXGPOV-UHFFFAOYSA-N terbium atom Chemical compound [Tb] GZCRRIHWUXGPOV-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000005084 Strontium aluminate Substances 0.000 claims abstract description 5
- DXNVUKXMTZHOTP-UHFFFAOYSA-N dialuminum;dimagnesium;barium(2+);oxygen(2-) Chemical compound [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 claims abstract description 5
- FNWBQFMGIFLWII-UHFFFAOYSA-N strontium aluminate Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Al+3].[Sr+2].[Sr+2] FNWBQFMGIFLWII-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract description 3
- 239000010452 phosphate Substances 0.000 claims abstract description 3
- 230000005855 radiation Effects 0.000 claims abstract 3
- 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 claims 1
- 238000009877 rendering Methods 0.000 abstract description 18
- 230000004907 flux Effects 0.000 description 6
- 238000000295 emission spectrum Methods 0.000 description 5
- 230000003595 spectral effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 229910052748 manganese Inorganic materials 0.000 description 3
- 239000011572 manganese Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 229910019990 cerium-doped yttrium aluminum garnet Inorganic materials 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000000985 reflectance spectrum Methods 0.000 description 2
- 229910019655 synthetic inorganic crystalline material Inorganic materials 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- JNDMLEXHDPKVFC-UHFFFAOYSA-N aluminum;oxygen(2-);yttrium(3+) Chemical compound [O-2].[O-2].[O-2].[Al+3].[Y+3] JNDMLEXHDPKVFC-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Luminescent Compositions (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は演色性を改善した蛍光高圧水銀灯に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a fluorescent high-pressure mercury lamp with improved color rendering.
従来の技術
蛍光高圧水銀灯の演色性を改善するために、その発光管
から放出される短波長青色域の水銀輝線出力を吸収する
作用がある蛍光体を使用することが試みられており、３
価のセリウムで付活したイツトリウムアルミネート（Ｙ
３Ａｅ５０＋２：Ｃｅ”）を用い、赤色蛍光体く例えば
、３価のユーロピウムで付活したイットリウムバナデー
ト）と組み合わせる方法が米国特許第４０３４２５７号
明細書に開示されている。Conventional Technology In order to improve the color rendering properties of fluorescent high-pressure mercury lamps, attempts have been made to use phosphors that have the effect of absorbing the mercury emission line output in the short wavelength blue region emitted from the arc tubes.
Yttrium aluminate (Y
3Ae50+2:Ce") in combination with a red phosphor (eg, yttrium vanadate activated with trivalent europium) is disclosed in US Pat. No. 4,034,257.
発明が解決しようとする課題
蛍光高圧水銀灯は、その優れた寿命特性により屋外照明
を中心にして広く一般照明に使用されている代表的な高
圧放電灯である。このランプの欠点は演色性が低いこと
にあり、Ｃ，１，Ｅの平均演色評価数Ｒａは４３程度で
ある。近年、蛍光高圧水銀灯の演色性改善が試みられ、
従来の赤色蛍光体に加えて青緑色蛍光体を付加すること
により、そのＲａは５２程度にまで改善された。しかし
ながら、この改善された演色性を有する蛍光高圧水銀灯
においても色の見え方を重視する屋内照明に用いるには
なお不充分であり、広く普及するには至っていない。Problems to be Solved by the Invention Fluorescent high-pressure mercury lamps are typical high-pressure discharge lamps that are widely used for general lighting, mainly outdoor lighting, due to their excellent longevity characteristics. The disadvantage of this lamp is that its color rendering properties are low, and the average color rendering index Ra of C, 1, and E is about 43. In recent years, attempts have been made to improve the color rendering properties of fluorescent high-pressure mercury lamps.
By adding a blue-green phosphor in addition to the conventional red phosphor, its Ra was improved to about 52. However, even this fluorescent high-pressure mercury lamp having improved color rendering properties is still insufficient for use in indoor lighting where color appearance is important, and it has not become widely used.
このように、従来方法において演色性改善が充分になさ
れない理由の一つは、発光管から放出されている４０５
ｎｍおよび４３６ｎｍの水銀輝線出力が強すぎるためで
あることが知られている。As described above, one of the reasons why the color rendering properties cannot be sufficiently improved in the conventional method is that the 405 emitted from the arc tube
It is known that this is due to the mercury emission line output at nm and 436 nm being too strong.
これらのうち、４０５ｎｍの水銀輝線出力については酸
化チタン被膜を利用するなどして抑制することが可能で
あるが、このように単に水銀輝線出力を抑制することは
ランプ効率の低下を伴うため不適当とされている。すな
わち、従来の演色性改善形高圧水銀灯では前記短波長青
色域の水銀輝線出力を抑制することなく演色性の改善を
はかっているため、その改善も充分ではなく屋内照明に
広く普及させていくためには、なお−層の改善が望まれ
ている。Among these, it is possible to suppress the mercury emission line output at 405 nm by using a titanium oxide film, but simply suppressing the mercury emission line output in this way is inappropriate because it involves a decrease in lamp efficiency. It is said that In other words, in conventional high-pressure mercury lamps with improved color rendering properties, the color rendering properties are improved without suppressing the output of mercury bright lines in the short wavelength blue region, so the improvement is not sufficient, and it is necessary to spread the lamps widely for indoor lighting. However, it is still desired to improve the layer.
このような事情に基づいて、近年短波長青色域に吸収を
有する蛍光体が開発され、上記短波長青色域の水銀輝線
出力を抑制することによって生じるランプ効率の低下を
防止する検討がなされている。例えば、上記短波長青色
域に吸収を有する蛍光体としてＹ３ＡＱ ｓ○１２：Ｃ
ｅ＋３（以下、−数式としてＹＡＧ・Ｃｅと略記する）
を用い、従来の赤色蛍光体とともに高圧水銀灯に適用し
て演色性の改善を試みた例が前記米国特許第４０３４２
５７号明細書に示されているが、それらのランプのＲａ
は５１程度であり満足できるものではなかった。Based on these circumstances, phosphors that absorb in the short wavelength blue region have been developed in recent years, and studies are being conducted to prevent the reduction in lamp efficiency caused by suppressing the mercury emission line output in the short wavelength blue region. . For example, as a phosphor having absorption in the short wavelength blue region, Y3AQ s○12:C
e+3 (hereinafter abbreviated as YAG/Ce as a - formula)
An example of an attempt to improve color rendering by applying this to a high-pressure mercury lamp together with a conventional red phosphor is disclosed in the above-mentioned US Pat. No. 40342.
As shown in the specification of No. 57, the Ra of those lamps is
was about 51, which was not satisfactory.
課題を解決するための手段
以上のように、高圧水銀灯の演色性を改善するためには
、その発光管から放出される短波長青色域の水銀輝線出
力を抑制するとともに従来の方法にみられるような赤色
域への発光の付加を行うだけでは満足できる結果が得ら
れない。発明者らはさらに青−黄緑色域にわたる広い波
長域に蛍光体による発光を付加する検討を行し爪種々の
ランプを試作して高圧水銀灯の演色性を大幅に改善でき
ることを見いだした。すなわち、ＹＡＧ：Ｃｅと赤色蛍
光体を組み合わせた場合はすでに述へたようにＲａは５
１程度であったが、発明者らは２価のユーロピウムで付
活されたストロンチウムアルミネート（以下、ＳＡＥと
称す）を高圧水銀灯の外管に被着させたとき、ＹＡＧ：
Ｃｅの場合と類似の吸収を示すとともに従来の赤色蛍光
体と組み合わせた試作ランプにおいてもそのＲａは５５
に改善され、ＹＡＧ ： Ｃｅと赤色蛍光体の組み合わ
せによるＲａの値５１よりもすぐれていることを見いだ
した。そこで、ＳＡＥと赤色蛍光体に加えて青緑色蛍光
体くここでは、２価のユーロピウムおよび２価のマンガ
ンで共付活されたバリウムマグネシウムアルミネート）
を追加した組み合わせにおいてはＲａは大幅に改善され
６０程度になった。また、ＳＡＥ、赤色蛍光体および青
緑色蛍光体に加えてさらに緑色蛍光体（ここでは、３価
のセリウムおよび３価のテルビウムで共付活したイツト
リウムマグネシウムボレート）を追加した組み合わせに
おいて、そのＲａは６２程度となることが見いだされた
。ここで、青緑・色蛍光体として２価のユーロピウムお
よび２価のマンガンで共付活したバリウムマグネシウム
アルミネートに限定したのはランプ効率の低下を伴わな
いという条件を課したためである。また、緑色蛍光体と
して３価のセリウムおよび３価のテルビウムで共付活し
たイツトリウムマグネシウムボレートに限定したのは他
の緑色蛍光体を用いた場合と比較してライフ中の光束維
持率の低下が少ないことがわかったからである。Means to Solve the Problems As described above, in order to improve the color rendering properties of high-pressure mercury lamps, it is necessary to suppress the output of mercury bright lines in the short wavelength blue region emitted from the arc tube, and to improve the color rendering properties of high-pressure mercury lamps. It is not possible to obtain satisfactory results by simply adding light emission to the red region. The inventors further investigated adding light emission by phosphors in a wide wavelength range from blue to yellowish green, produced various types of lamps, and found that the color rendering properties of high-pressure mercury lamps could be greatly improved. In other words, when YAG:Ce and red phosphor are combined, Ra is 5 as already mentioned.
However, when the inventors applied strontium aluminate (hereinafter referred to as SAE) activated with divalent europium to the outer bulb of a high-pressure mercury lamp, YAG:
It shows absorption similar to that of Ce, and even in a prototype lamp combined with a conventional red phosphor, its Ra is 55.
It was found that the Ra value was improved to 51 by the combination of YAG:Ce and red phosphor. Therefore, in addition to SAE and a red phosphor, a blue-green phosphor (barium magnesium aluminate coactivated with divalent europium and divalent manganese) is used.
In the combination with the addition of , Ra was significantly improved to about 60. In addition, in a combination in which a green phosphor (here, yttrium magnesium borate coactivated with trivalent cerium and trivalent terbium) is added to SAE, a red phosphor, and a blue-green phosphor, its Ra was found to be about 62. Here, the reason why the blue-green color phosphor was limited to barium magnesium aluminate co-activated with divalent europium and divalent manganese was imposed on the condition that the lamp efficiency would not be reduced. In addition, the use of yttrium magnesium borate co-activated with trivalent cerium and trivalent terbium as the green phosphor has a lower luminous flux maintenance rate during its lifetime than when using other green phosphors. This is because it was found that there were few
作用
かかる構成によると、高圧水銀灯の発光管が放出する４
０５ｎｍおよび４３６ｎｍの水銀輝線出力を吸収する作
用と、紫外線によって励起され青緑色域に発光を生じる
作用を併せ持つＳＡＥを用いることによる演色性改善の
効果と、高圧水銀灯の発光スペクトルにおいて欠如して
いる４４０ｎｍ〜５４０ｎｍおよび５９０ｎｍ 〜７０
０ｎｍ付近の波長域の光出力を蛍光体を用いて補うこと
による演色性改善の効果が相乗的に作用することによっ
て、演色性を大幅に向上させることができる。According to this configuration, the arc tube of a high-pressure mercury lamp emits 4
The effect of improving color rendering by using SAE, which has the effect of absorbing mercury emission line output of 05 nm and 436 nm and the effect of generating light in the blue-green region when excited by ultraviolet rays, and the 440 nm emission spectrum that is missing in the emission spectrum of high-pressure mercury lamps. ~540nm and 590nm ~70
The color rendering properties can be significantly improved by the synergistic effect of improving the color rendering properties by supplementing the light output in the wavelength range around 0 nm using the phosphor.
実施例
以下、本発明の一実施例について図面を用いて説明する
。EXAMPLE Hereinafter, an example of the present invention will be described with reference to the drawings.
実施例Ｉ
Ｙｏ、９ＳＶＯ４：ＥｕＯ，０５７ＯＷｔ零Ｂａｏ、ａ
Ｍｇ＋、５３Ａｆ！ ＋４０２４°Ｅｕｏ２．Ｍｎｏ、
ｏ７１３ｗｔ＊Ｙｏ、ｑＭｇｏ７ＢｓＯ＋ｏ：Ｃｅｏｌ
、Ｔｂｏ３１０ｗｔ：Ｓｒ３．５ｓＡｅ ＋＋０２４：
Ｅｕｏ、＋２７ｗｔ零上記混合物を用い、それに５ ｗ
ｔ％の５ｉ０２粉末を加えて充分に混合した後、１０
０Ｗ高圧水銀灯の外管の内面に３．５■／’ ｃｎｆの
塗布量となるように塗布した。得られたランプの１００
時間光束は４７００ルーメン、色温度は４２５０Ｋ、Ｒ
ａは６０であり、従来の蛍光高圧水銀灯のＲａ（５０〜
５５程度）に比べて明らかな改善がみられた。Example I Yo,9SVO4:EuO,057OWt0Bao,a
Mg+, 53Af! +4024°Euo2. Mno,
o713wt*Yo, qMgo7BsO+o:Ceol
, Tbo310wt:Sr3.5sAe ++024:
Euo, +27 wt zero using the above mixture and adding 5 w
After adding t% of 5i02 powder and mixing thoroughly, 10
It was applied to the inner surface of the outer bulb of a 0W high-pressure mercury lamp in an amount of 3.5 cm/' cnf. 100 of the obtained lamps
Hourly luminous flux is 4700 lumens, color temperature is 4250K, R
a is 60, which is higher than the Ra (50~
A clear improvement was seen compared to the previous version (approximately 55).
第１図は本実施例による１００Ｗ蛍光高圧水銀灯の分光
分布を示す。第２図（Ａ） 、 （Ｂ）はＳＡＥの分光
反射率および発光スペクトルを示す。第３図は各蛍光体
の発光スペクトルを示す。第３図の曲線１はＢ ａｏ、
ｓＭ ｇ＋９３Ａｅ ＋４０２４°ＥｕＯ，２゜Ｍｎｏ
、ｏ７、曲線２はＹｏ、ｑＭ ｇｏ７Ｂｓｏ＋。FIG. 1 shows the spectral distribution of the 100W fluorescent high-pressure mercury lamp according to this example. FIGS. 2(A) and 2(B) show the spectral reflectance and emission spectrum of SAE. FIG. 3 shows the emission spectra of each phosphor. Curve 1 in Figure 3 is B ao,
sM g+93Ae +4024°EuO, 2°Mno
, o7, curve 2 is Yo, qM go7Bso+.
Ｃｅｏ、＋＋ Ｔ ｂｏ、３、曲線３はＹＱ、９５ｖｏ
４Ｅｕｏ、ｏｓのものである。CEO, ++ T bo, 3, curve 3 is YQ, 95vo
4Euo, os.
第４図の曲線４は本実施例による１００Ｗ蛍光高圧水銀
灯の寿命中の光束維持率の推移を示すもので、比較とし
てＹｏ、ｓＭｇｏ７Ｂｓｏ＋ｏ：Ｃｅ。Curve 4 in FIG. 4 shows the change in luminous flux maintenance rate during the life of the 100W fluorescent high-pressure mercury lamp according to this example, and for comparison, Yo, sMgo7Bso+o:Ce.
Ｔｂｏ３の代わりにＹ＋、ｓＳ ｉ ０５ ： Ｃｅ６
Ｔｂｏ３を緑色蛍光体として用いた場合のデータを曲線
５に示す。第４図から３価のセリウムおよび３価のテル
ビウムで共付活したイツトリウムマグネシウムボレート
が寿命中を通して安全な特性を示すことがわかる。Y+ instead of Tbo3, sS i 05: Ce6
Curve 5 shows data when Tbo3 is used as a green phosphor. It can be seen from FIG. 4 that yttrium magnesium borate co-activated with trivalent cerium and trivalent terbium exhibits safe characteristics throughout its life.
実施例２
実施例１と同じ蛍光体混合物を同様にして４００Ｗ用外
管の内面に塗布し、４００Ｗ蛍光高圧水銀灯を作製した
。Example 2 The same phosphor mixture as in Example 1 was similarly applied to the inner surface of a 400W outer bulb to produce a 400W fluorescent high-pressure mercury lamp.
得られたランプの１００時間光束値は２５０００ルーメ
ン、色温度は４１５０に、Ｒａは５８であり、従来の蛍
光高圧水銀灯のＲａ （５０〜５５程度）に比べて明ら
かな改善がみられた。The obtained lamp had a 100-hour luminous flux value of 25,000 lumens, a color temperature of 4,150, and an Ra of 58, which was a clear improvement over the Ra (about 50 to 55) of a conventional fluorescent high-pressure mercury lamp.
実施例３
Ｙｏ、９ＳＶＯ，５５Ｐ０．４５０４：ＥＬＩｏ、０５
８０ｗｔ’、／Ｂａｏ９Ｍｇ＋、５ｓＡｆ
！ ＋＋０２４：Ｅｕｏ、＋、Ｍｎｏ、ｎｓ ５
ｗｔ＊Ｙｏ、ｓＭｇｏ、ｅＢｓＯ＋ｏ：Ｃｅｏ、＋、Ｔ
ｂｏ４１０ｗｔ＄Ｓｒ３．５ｓＡｉ！ ＋４０２４°Ｅ
ｕｏ、＋ｓ ７ｗｔ：上記混合物を用
い、それに３ｗｔ％の５ｉ０２粉末を加えて充分に混合
した後、１００Ｗ高圧水銀灯の外管に４■／ ｃｒｊの
割合になるよう塗布し、通常の方法により１００Ｗ蛍光
高圧水銀灯を作製した。得られたランプの１００時間光
束値は４５００ルーメン、色温度は３９５０ Ｋ 、
Ｒａは６２であり、明らかに改善された演色性を示した
。Example 3 Yo, 9SVO, 55P0.4504: ELIo, 05
80wt', /Bao9Mg+, 5sAf
! ++024: Euo, +, Mno, ns 5
wt*Yo,sMgo,eBsO+o:Ceo,+,T
bo410wt$Sr3.5sAi! +4024°E
uo, +s 7wt: Using the above mixture, add 3wt% of 5i02 powder to it, mix well, apply to the outer bulb of a 100W high-pressure mercury lamp at a ratio of 4■/crj, and turn it into a 100W fluorescent lamp using the usual method. A high-pressure mercury lamp was created. The resulting lamp had a 100-hour luminous flux value of 4500 lumens, a color temperature of 3950 K,
Ra was 62, indicating clearly improved color rendering.
発明の詳細
な説明したように、本発明の蛍光高圧水銀灯は、その蛍
光体被膜を２価のユーロピウムで付活したストロンチウ
ムアルミネートである第１の蛍光体と、２価のユーロピ
ウムおよび２価のマンガンで共付活されたバリウムマグ
ネシウムアルミネートである第２の蛍光体と、３価のセ
リウムおよび３価のテルビウムで共付活されたイツトリ
ウムマグネシウムボレートである第３の蛍光体と、３価
のユーロピウムで付活されたイットリウムバナデートお
よび３価のユーロピウムで付活されたイットリウムバナ
デートフォスフエートの少なくとも一種である第４の蛍
光体とからなるように構成することにより、その演色性
を従来の蛍光高圧水銀灯に比べて大幅に改善することが
でき、その用途を屋内照明の分野にも拡大できるもので
ある。As described in detail, the fluorescent high-pressure mercury lamp of the present invention includes a first phosphor that is strontium aluminate whose phosphor coating is activated with divalent europium, and a first phosphor that is strontium aluminate activated with divalent europium. a second phosphor that is barium magnesium aluminate coactivated with manganese; a third phosphor that is yttrium magnesium borate coactivated with trivalent cerium and trivalent terbium; and a fourth phosphor that is at least one of yttrium vanadate activated with europium and yttrium vanadate phosphate activated with trivalent europium. This is a significant improvement over conventional fluorescent high-pressure mercury lamps, and its use can be extended to the field of indoor lighting.
第１図は本発明の実施例１の蛍光高圧水銀灯の分光分布
を示す図、第２図（Ａ） 、 （Ｂ）はＳＡＥの分光反
射率および発光スペクトルを示す図、第３図は本発明に
かかる蛍光体の発光スペクトルを示す図、第４図は本発
明の実施例１の１００Ｗ蛍光高圧水銀灯の寿命中におけ
る光束維持率の推移を示す図である。Fig. 1 is a diagram showing the spectral distribution of the fluorescent high-pressure mercury lamp of Example 1 of the present invention, Fig. 2 (A) and (B) are diagrams showing the spectral reflectance and emission spectrum of SAE, and Fig. 3 is a diagram showing the spectral distribution of the fluorescent high-pressure mercury lamp of Example 1 of the present invention. FIG. 4 is a diagram showing the luminous flux maintenance rate over the life of the 100 W fluorescent high-pressure mercury lamp of Example 1 of the present invention.
Claims (1)
光管を囲む外管と、この外管内面に形成された蛍光体被
膜とを備えた蛍光高圧水銀灯において、前記蛍光体被膜
が２価のユーロピウムで付活されたストロンチウムアル
ミネートである第１の蛍光体と、２価のユーロピウムお
よび２価のマンガンで共付活されたバリウムマグネシウ
ムアルミネートである第２の蛍光体と、３価のセリウム
および３価のテルビウムで共付活されたイットリウムマ
グネシウムボレートである第３の蛍光体と、３価のユー
ロピウムで付活されたイットリウムバナデートおよび３
価のユーロピウムで付活されたイットリウムバナデート
フォスフェートの少なくとも一種である第４の蛍光体と
からなることを特徴とする蛍光高圧水銀灯。In a fluorescent high-pressure mercury lamp comprising an arc tube that emits visible radiation and ultraviolet radiation, an outer tube surrounding the arc tube, and a phosphor coating formed on the inner surface of the outer tube, the phosphor coating is a divalent mercury lamp. a first phosphor that is strontium aluminate activated with europium, a second phosphor that is barium magnesium aluminate co-activated with divalent europium and divalent manganese, and trivalent cerium. and a third phosphor which is yttrium magnesium borate coactivated with trivalent terbium, and yttrium vanadate and yttrium vanadate coactivated with trivalent europium.
and a fourth phosphor which is at least one type of yttrium vanadate phosphate activated with valent europium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19529290A JPH0480285A (en) | 1990-07-23 | 1990-07-23 | Fluorescent high-pressure mercury lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19529290A JPH0480285A (en) | 1990-07-23 | 1990-07-23 | Fluorescent high-pressure mercury lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0480285A true JPH0480285A (en) | 1992-03-13 |
Family
ID=16338731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19529290A Pending JPH0480285A (en) | 1990-07-23 | 1990-07-23 | Fluorescent high-pressure mercury lamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0480285A (en) |
-
1990
- 1990-07-23 JP JP19529290A patent/JPH0480285A/en active Pending
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