JPH0619975B2 - Fluorescent lamp emitting light in three wavelength range - Google Patents
Fluorescent lamp emitting light in three wavelength rangeInfo
- Publication number
- JPH0619975B2 JPH0619975B2 JP59077832A JP7783284A JPH0619975B2 JP H0619975 B2 JPH0619975 B2 JP H0619975B2 JP 59077832 A JP59077832 A JP 59077832A JP 7783284 A JP7783284 A JP 7783284A JP H0619975 B2 JPH0619975 B2 JP H0619975B2
- Authority
- JP
- Japan
- Prior art keywords
- phosphor
- fluorescent lamp
- wavelength
- wavelength range
- rare earth
- 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.)
- Expired - Lifetime
Links
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 10
- 239000000126 substance Substances 0.000 claims description 7
- 229910052693 Europium Inorganic materials 0.000 claims description 6
- 238000000295 emission spectrum Methods 0.000 claims description 6
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 6
- 150000002910 rare earth metals Chemical class 0.000 claims description 6
- 150000004645 aluminates Chemical class 0.000 claims description 5
- OGPBJKLSAFTDLK-UHFFFAOYSA-N europium atom Chemical compound [Eu] OGPBJKLSAFTDLK-UHFFFAOYSA-N 0.000 claims description 5
- 229910052684 Cerium Inorganic materials 0.000 claims description 4
- 229910052771 Terbium Inorganic materials 0.000 claims description 4
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 4
- 150000001342 alkaline earth metals Chemical class 0.000 claims description 4
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- IBIRZFNPWYRWOG-UHFFFAOYSA-N phosphane;phosphoric acid Chemical compound P.OP(O)(O)=O IBIRZFNPWYRWOG-UHFFFAOYSA-N 0.000 claims description 4
- GZCRRIHWUXGPOV-UHFFFAOYSA-N terbium atom Chemical compound [Tb] GZCRRIHWUXGPOV-UHFFFAOYSA-N 0.000 claims description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 3
- 229910052749 magnesium Inorganic materials 0.000 claims description 3
- 239000011777 magnesium Substances 0.000 claims description 3
- 230000005855 radiation Effects 0.000 claims description 2
- 229910001404 rare earth metal oxide Inorganic materials 0.000 claims description 2
- 238000001228 spectrum Methods 0.000 claims description 2
- URRHWTYOQNLUKY-UHFFFAOYSA-N [AlH3].[P] Chemical compound [AlH3].[P] URRHWTYOQNLUKY-UHFFFAOYSA-N 0.000 claims 1
- 238000004020 luminiscence type Methods 0.000 claims 1
- 238000009877 rendering Methods 0.000 description 20
- 230000003595 spectral effect Effects 0.000 description 4
- 238000013329 compounding Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- NIAAUYARBNQFTM-UHFFFAOYSA-K [O-]P([O-])([O-])=O.OP(O)(O)=O.P.[La+3] Chemical compound [O-]P([O-])([O-])=O.OP(O)(O)=O.P.[La+3] NIAAUYARBNQFTM-UHFFFAOYSA-K 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- -1 europium-activated strontium aluminate Chemical class 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- FNWBQFMGIFLWII-UHFFFAOYSA-N strontium aluminate Chemical class [O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Al+3].[Sr+2].[Sr+2] FNWBQFMGIFLWII-UHFFFAOYSA-N 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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
- H01J61/44—Devices characterised by the luminescent material
Landscapes
- Luminescent Compositions (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は高効率，高演色の三波長域発光形螢光ランプに
関するものである。Description: TECHNICAL FIELD The present invention relates to a high-efficiency, high-rendering, three-wavelength band emission type fluorescent lamp.
従来例の構成とその問題点 三波長域発光形蛍光ランプは、実用化されて以来、高効
率，高演色螢光ランプとして、現在、螢光ランプ分野で
重要な位置を占めるようになってきた。この螢光ランプは
近年の省エネルギーという産業上の要請を満たすばかり
でなく、従来の白色螢光ランプの課題であった演色性が
低いという欠点をも改善し、螢光ランプの質的向上をも
たらした。そして、この螢光ランプの普及に伴って、よ
り高効率，高演色な螢光ランプを指向する研究開発が活
発に行なわれるようになってきた。特に、演色性改善に
対しては平均演色評価数Ｒａのみならず特殊演色評価数
Ｒ9〜Ｒ15も向上させる必要がある。そのような観点か
ら三波長域発光形螢光ランプをみた場合、第１表に示し
たように、三波長域発光形螢光ランプは、従来の白色螢
光ランプに比べて、高い演色評価数を得ているが、
Ｒ9，Ｒ10，Ｒ12が他の演色評価数に比べて低く、高演
色な光源といえるためには、これらが高い値を持たなけ
ればならない。このような三波長域発光形螢光ランプの
演色性を改善する方法として、Ｒ9，Ｒ10，Ｒ12の試験
色が示す分光反射率を考慮して反射率の高い波長域に発
光を示す螢光体を三波長域発光形螢光ランプに使用され
ている３つの螢光体に加える方法が考えられる。例え
ば、「電気学会研究会資料（光源，関連装置研究会）」
ＬＳ−７９−７に見られるように三波長域発光形螢光ラ
ンプに、第４，第５の螢光成分を加えて演色性の改善を
図っているが、この螢光ランプにおいてもＲ9＝２０で
あり他の演色評価数が改善されているにもかかわらずＲ
９を改善するまでには至っていない。すなわち、充分な
ランプ効率と満足できるＲａをもつ三波長域発光形螢光
ランプにおいてこの優れた特徴を損うことなく、Ｒ9，
Ｒ10，Ｒ12を改善することは、従来より困難な課題とさ
れていた。Structure of Conventional Example and Its Problems Since the practical use of the three-wavelength band fluorescent lamp, it has come to occupy an important position in the fluorescent lamp field as a highly efficient and high color rendering fluorescent lamp. . This fluorescent lamp not only satisfies the industrial demand for energy saving in recent years, but also improves the drawback of low color rendering, which was a problem of conventional white fluorescent lamps, and brings about the improvement in quality of fluorescent lamps. It was With the spread of this fluorescent lamp, research and development aiming at a fluorescent lamp with higher efficiency and higher color rendering have been actively carried out. In particular, in order to improve the color rendering properties, it is necessary to improve not only the average color rendering index R a but also the special color rendering indices R 9 to R 15 . When we look at the three-wavelength band emission type fluorescent lamp from such a point of view, as shown in Table 1, the three-wavelength band emission type fluorescent lamp has a higher color rendering index than the conventional white fluorescent lamp. Is getting
R 9, R 10, R 12 is lower than other color rendering index, to say a high color rendering light source, they must have a high value. As a method of improving the color rendering properties of such a three-wavelength band emission type fluorescent lamp, light is emitted in a wavelength range having a high reflectance in consideration of the spectral reflectances of the test colors of R 9 , R 10 and R 12. A method is conceivable in which the phosphor is added to the three phosphors used in the three-wavelength band fluorescent lamp. For example, "The Institute of Electrical Engineers of Japan Material (Light Source, Related Equipment Study Group)"
As seen in LS-79-7, the third and fourth wavelength emission type fluorescent lamps are added with the fourth and fifth fluorescent components to improve the color rendering property. In this fluorescent lamp, R 9 is also used. = 20 and other color rendering index is improved, R
It has not reached the point of improving 9 . That is, without impairing the excellent features in the three-band fluorescent type fluorescent lamp having an R a satisfactory and sufficient lamp efficiency, R 9,
Improving R 10 and R 12 has been considered as a more difficult task than in the past.
発明の目的 本発明はこのような事情に基づいてなされたもので、満
足できる演色評価数と、高いランプ効率をもつ実用的な
三波長域発光形螢光ランプを提供するものである。 SUMMARY OF THE INVENTION The present invention has been made under such circumstances and provides a practical three-wavelength band emission type fluorescent lamp having a satisfactory color rendering index and a high lamp efficiency.
発明の構成 本発明の三波長域発光形螢光ランプは、４９０ｎｍ付近
に最大発光波長を有する放射スペクトルを示し、一般式
が４（Ｓｒ1-x,Ｅｕx）Ｏ・ｙＡｌ2Ｏ３（但し、０．０
０５≦ｘ≦０．２，6≦ｙ≦8）で表わされるアルミネイ
ト螢光体からなる第１材料と、４４０〜４６０ｎｍの波
長範囲に最大発光波長を有する放射スペクトルを示し、
２価のユーロピウムで付活したアルカリ土類金属アルミ
ネイト螢光体およびアルカリ土類金属ハロホスフェイト
螢光体の中から選ばれる少なくとも一種からなる第２材
料と、５２０〜５６０ｎｍの波長範囲に最大発光波長を
有する放射スペクトルを示し、３価のテルビウムおよび
／または３価のセリウムで付活した希土類マグネシウム
アルミネイト螢光体および希土類ホスフェイト螢光体の
中から選ばれる少なくとも一種からなる第３材料と、６
００〜６２０ｎｍの波長範囲に最大発光波長を有する放
射スペクトルを示し、３価のユーロピウムで付活した希
土類酸化物螢光体からなる第４材料とを有する螢光体混
合物を管内壁に被着してなり、前記螢光体混合物におい
て前記希土類ホスフェイト螢光体の調合比が２４重量％
以上４２重量％以下である構成を有する。Configuration of the Invention The three-wavelength band emission type fluorescent lamp of the present invention exhibits an emission spectrum having a maximum emission wavelength near 490 nm, and has a general formula of 4 (Sr 1-x , Eu x ) O · yAl 2 O 3 (however, , 0.0
05 ≤ x ≤ 0.2, 6 ≤ y ≤ 8), the first material consisting of an alumina phosphor, and the emission spectrum having the maximum emission wavelength in the wavelength range of 440 to 460 nm,
A second material consisting of at least one selected from an alkaline earth metal aluminate phosphor and an alkaline earth metal halophosphate phosphor activated with divalent europium, and a maximum in a wavelength range of 520 to 560 nm. A third material showing a radiation spectrum having an emission wavelength and comprising at least one selected from a trivalent terbium and / or trivalent cerium-activated rare earth magnesium aluminate phosphor and a rare earth phosphate phosphor; , 6
A fluorescent substance mixture having a maximum emission wavelength in the wavelength range of 0 to 620 nm and having a fourth material consisting of a trivalent europium-activated rare earth oxide fluorescent substance was applied to the inner wall of the tube. And the compounding ratio of the rare earth phosphate phosphor in the phosphor mixture is 24% by weight.
It has a composition of not less than 42% by weight.
実施例の説明 三波長域発光形螢光ランプのＲ9，Ｒ10，Ｒ12を向上さ
せるために、４９０ｎｍ付近に最大発光波長を有する放
射スペクトルを示す２価のユーロピウム付活ストロンチ
ウムアルミネイト螢光体を取りあげ、これを三波長域発
光形螢光ランプの３つの螢光体混合物に添加して、
Ｒ9，Ｒ10，Ｒ12の改善をはかった、２価のユーロピウ
ム付活ストロンチウムアルミネイト螢光体は、一般色が 4(Sr1-x,Eux)O・yAl2O3で表わされ、 ０．００５≦ｘ≦０．２，６≦ｙ≦８の範囲で実用的な
青緑色螢光体を得ることができる。Description of Examples In order to improve R 9 , R 10 and R 12 of a three-wavelength band emission type fluorescent lamp, a divalent europium-activated strontium aluminate fluorescent material showing an emission spectrum having a maximum emission wavelength near 490 nm. Take the body and add it to the mixture of the three phosphors of the three-wavelength emitting fluorescent lamp,
A divalent europium-activated strontium aluminate phosphor with improved R 9 , R 10 and R 12 is represented by a general color of 4 (Sr 1-x , Eu x ) O ・ yAl 2 O 3. Thus, a practical blue-green phosphor can be obtained in the range of 0.005 ≦ x ≦ 0.2 and 6 ≦ y ≦ 8.
第１表，ランプＩで示した三波長域発光形螢光ランプの
螢光体混合物に、 4(Sr0.97,Eu0.03)0.7Al2O3で表わされる螢光体を加え
て、色温度５０００Ｋ，ＤＵＶ＝＋３．２（ＤＵＶはＵ
−Ｖで座標上で黒体軌跡上の任意の色温度の点から、軌
跡に対して法線方向にどれだけ変位しているかを示すも
ので、 緑側のとき＋，その反対側で−をとるもの。）の４０Ｗ
螢光ランプ（管径３２mm）を製作した。The fluorescent substance represented by 4 (Sr 0.97 , Eu 0.03 ) 0.7Al 2 O 3 was added to the fluorescent substance mixture of the three-wavelength band fluorescent lamp shown in Table 1, Lamp I, and the color temperature was set to 5000 K. , DUV = + 3.2 (DUV is U
-V indicates how much is displaced in the direction normal to the locus from the point of arbitrary color temperature on the blackbody locus on the coordinate, + On the green side and-on the opposite side. ) 40W
Fluorescent lamp (tube diameter 32mm) was manufactured.
以下、本発明の具体的な実施例について説明する。Hereinafter, specific examples of the present invention will be described.
実施例に用いた螢光体を第３表に、実施例３の分光分布
を第５図にそれぞれ示す。４種類の実施例を公知例１，
２とともに第２表に示す。ここで、実施例１〜４は本発
明実施例の三波長域発光形螢光ランプである。また、公
知例１は従来から知られている代表的な三波長域発光形
螢光ランプ、公知例２は公知例１の青色螢光体（Ｂａ
0.9，Ｅｕ0.1）Ｏ・２ＭｇＯ・８Ａｌ2Ｏ3の代わりに、
本発明実施例のランプに用いられる第１材料の螢光体で
ある４ （Ｓｒ0.97，Ｅｕ0.03）Ｏ・７Ａｌ2Ｏ3を用い
た三波長域発光形蛍光ランプである。The fluorescent substances used in the examples are shown in Table 3, and the spectral distribution of Example 3 is shown in FIG. Known Examples 1 of 4 Examples
It is shown in Table 2 together with 2. Here, Examples 1 to 4 are three-wavelength band emission type fluorescent lamps of Examples of the present invention. Known example 1 is a typical three-wavelength band emission type fluorescent lamp known in the related art, and known example 2 is the blue fluorescent material (Ba) of known example 1.
0.9 , Eu 0.1 ) O · 2MgO · 8Al 2 O 3
It is a three-wavelength band emission type fluorescent lamp using 4 (Sr 0.97 , Eu 0.03 ) O.7Al 2 O 3 , which is a fluorescent material of the first material used in the lamp of the embodiment of the present invention.
第２表から明らかなように、従来知られている三波長域
発光形螢光ランプの青色，緑色，赤色発光螢光体に対し
て、さらに４（Ｓｒ0.97，Ｅｕ0.03）Ｏ・７Ａｌ2Ｏ3を
加えることによって、平均演色評価数Ｒａを低下させる
ことなく、特殊演色評価数Ｒ9，Ｒ10，Ｒ12を大幅に改
善することができることがわかる。すなわち、第２表に
示す。As is clear from Table 2, in addition to the blue, green, and red light emitting phosphors of the conventionally known three-wavelength band emission type fluorescent lamp, 4 (Sr 0.97 , Eu 0.03 ) O.7Al 2 O It is understood that by adding 3 , the special color rendering indexes R 9 , R 10 and R 12 can be significantly improved without lowering the average color rendering index Ra. That is, it is shown in Table 2.
この特殊演色評価数Ｒ9，Ｒ10，Ｒ12を改善する効果
は、実施例１からもわかるように、第１材料の螢光体の
混合比が４．５重量％という少量の場合にも得られるも
のである。すなわち、４（Ｓｒ0.97，Ｅｕ0.03）Ｏ・Ａ
ｌ2Ｏ3を使用することによって、ランプ効率をあまり低
下させることなく、充分なＲａと満足できるＲ9，
Ｒ10，Ｒ12をもつ螢光ランプを得ることができる。 As can be seen from Example 1, the effect of improving the special color rendering indexes R 9 , R 10 and R 12 is obtained even when the mixing ratio of the phosphor of the first material is as small as 4.5% by weight. Is what you get. That is, 4 (Sr 0.97 , Eu 0.03 ) O · A
By using l 2 O 3 , sufficient Ra and satisfactory R 9 can be obtained without significantly lowering the lamp efficiency.
It is possible to obtain a fluorescent lamp having R 10 and R 12 .
上記螢光体を組み合わせて色温度５０００Ｋ，ＤＵＶ＝
３．２の螢光ランプを製作した。その結果を第４表に示
す。同表に示す実験により、螢光体混合物の調合比を検
討したところ、比較例１，２に示すように、第３材料と
して３価のテルビウムおよび３価のセリウムで付活した
リン酸ランタン螢光体（III−２）を用いた場合に限
り、その調合比が４２重量％を越えると、特集演色評価
数Ｒ9の改善効果が得られないことがわかった。 Color temperature of 5000K, DUV =
A fluorescent lamp of 3.2 was manufactured. The results are shown in Table 4. When the blending ratio of the phosphor mixture was examined by the experiment shown in the same table, as shown in Comparative Examples 1 and 2, lanthanum phosphate phosphor activated with trivalent terbium and trivalent cerium as the third material was used. Only in the case of using the photoconductor (III-2), it was found that the effect of improving the special color rendering index R 9 cannot be obtained when the compounding ratio exceeds 42% by weight.
一方、この螢光体調合比の限定は、本発明の目的を達成
するためには、第３材料として３価のテルビウムおよび
３価のセリウムで付活したマグネシウムアルミネイト螢
光体（III−１）の場合は必要ではなかった。On the other hand, in order to achieve the object of the present invention, the limitation of the compounding ratio of the phosphor is to use a magnesium aluminate phosphor (III-1 which is activated by trivalent terbium and trivalent cerium as the third material (III-1 ), It was not necessary.
さらに、実験によれば、これら螢光体混合物を構成する
第１，第２および第４材料についても、本発明の目的を
達成するためには、その調合比を限定する必要は認めら
れなかった。Further, according to the experiment, it was not found that the first, second and fourth materials constituting the phosphor mixture were required to have a limited mixing ratio in order to achieve the object of the present invention. .
第４表より4(Sr0.97,Eu0.03)O・7Al2O3螢光体を使用する
ことによって、三波長域発光形螢光ランプの効率をあま
り低下させることなく、Ｒ9，Ｒ10，Ｒ12を向上させる
ことができることが明らかである。また同時に、Ｒａの
改善を図ることもできる。 From Table 4, by using 4 (Sr 0.97 , Eu 0.03 ) O ・ 7Al 2 O 3 phosphors, R 9 , R 10 , It is clear that R 12 can be improved. At the same time, R a can be improved.
次に、第５表に、色温度を変えたとき（ＤＵＶ＝３．
２）の実施例を示した。Next, in Table 5, when the color temperature was changed (DUV = 3.
The example of 2) was shown.
第５表の相対効率は公知例１の螢光ランプの効率に対す
る比である。色温度を上げると、Ｒａ，Ｒ９，Ｒ10，Ｒ
12は高い値を得ることができるが効率の低いものとな
る。しかし、同じ色温度６５００Ｋをもつ三波長域発光
形螢光ランプと実施例１２とを比較した場合、２１％の
第１材料の添加は、４％の効率低下にしかならず、効率
をあまり低下させることなくＲ９，Ｒ10，Ｒ12を大幅に
改善することが可能である。そして同時にＲａの改善も
図ることができる。 The relative efficiency in Table 5 is a ratio to the efficiency of the fluorescent lamp of the known example 1. Increasing the color temperature, R a, R 9, R 10, R
12 can get a high value, but is inefficient. However, when comparing the three-wavelength band emission type fluorescent lamp having the same color temperature of 6500K and Example 12, the addition of 21% of the first material results in only a 4% reduction in efficiency, which causes a significant reduction in efficiency. It is possible to significantly improve R 9 , R 10 , and R 12 without any problem. At the same time, R a can be improved.
以上説明したように、従来の三波長域発光形螢光ランプ
の蛍光成分に、４９０ｎｍ付近の発光をもつ螢光成分を
加えることによって、三波長域発光形螢光ランプの効率
をあまり低下させることなく、Ｒ９，Ｒ10，Ｒ12を大幅
に改善した螢光ランプを得ることができる。As described above, the efficiency of a three-wavelength band emission type fluorescent lamp is reduced by adding a fluorescent component having an emission near 490 nm to the fluorescence component of the conventional three-wavelength band emission type fluorescent lamp. It is possible to obtain a fluorescent lamp in which R 9 , R 10 and R 12 are significantly improved.
発明の効果 以上説明したように、本発明は充分なランプ効率と平均
演色評価数Ｒａのみならず、特殊演色評価数Ｒ９，
Ｒ10，Ｒ12をも向上することのできる三波長域発光蛍光
ランプを提供することができるものである。EFFECTS OF THE INVENTION As described above, according to the present invention, not only the sufficient lamp efficiency and the average color rendering index Ra but also the special color rendering index R 9 ,
It is possible to provide a three-wavelength band emission fluorescent lamp capable of improving R 10 and R 12 .
第１図は本発明にかかる螢光ランプに用いる４(S
r0.97，Eu0.03)Ｏ・７Al2O3螢光体の分光分布を示す
図、第２図は同じく青色螢光体の分光分布を示す図、第
３図は同じく緑色螢光体を示す図、第４図は同じく赤色
螢光体を示す図、第５図は本発明にかかる螢光ランプの
分光分布を示す図である。FIG. 1 shows 4 (S) used in the fluorescent lamp according to the present invention.
r 0.97 , Eu 0.03 ) O · 7Al 2 O 3 The spectral distribution of the phosphor, FIG. 2 is the same as that of the blue phosphor, and FIG. 3 is the same of the green phosphor. FIG. 4 is a view showing a red fluorescent body, and FIG. 5 is a view showing a spectral distribution of a fluorescent lamp according to the present invention.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 柴田 治男 大阪府門真市大字門真1006番地 松下電子 工業株式会社内 (72)発明者 大高 良憲 大阪府門真市大字門真1006番地 松下電子 工業株式会社内 (72)発明者 高野 治 大阪府門真市大字門真1006番地 松下電子 工業株式会社内 (72)発明者 猪飼 泰博 大阪府門真市大字門真1006番地 松下電子 工業株式会社内 (56)参考文献 特開 昭58−213080（ＪＰ，Ａ) 特開 昭54−37391（ＪＰ，Ａ) 特開 昭56−136875（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Haruo Shibata 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electronics Co., Ltd. (72) Yoshinori Otaka, 1006 Kadoma, Kadoma City, Osaka Matsushita Electronics Co., Ltd. (72) Inventor Osamu Takano 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electronics Industrial Co., Ltd. (72) Inhiro Yasuhiro Inaki, 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electronics Industrial Co., Ltd. (56) References 58-213080 (JP, A) JP-A-54-37391 (JP, A) JP-A-56-136875 (JP, A)
Claims (1)
射スペクトルを示し、一般式が４（Ｓｒ1-x,Ｅｕｘ）Ｏ
・ｙＡｌ2Ｏ3（但し、0.005≦ｘ≦０．２，6≦ｙ≦8）
で表わされるアルミネイト螢光体からなる第１材料と、
４４０〜４６０ｎｍの波長範囲に最大発光波長を有する
放射スペクトルを示し、２価のユーロピウムで付活した
アルカリ土類金属アルミネイト螢光体およびアルカリ土
類金属ハロホスフェイト螢光体の中から選ばれる少なく
とも一種からなる第２材料と、５２０〜５６０ｎｍの波
長範囲に最大発光波長を有する放射スペクトルを示し、
３価のテルビウムおよび／または３価のセリウムで付活
した希土類マグネシウムアルミネイト螢光体および希土
類ホスフェイト螢光体の中から選ばれる少なくとも一種
からなる第３材料と、６００〜６２０ｎｍの波長範囲に
最大発光波長を有する放射スペクトルを示し、３価のユ
ーロピウムで付活した希土類酸化物螢光体からなる第４
材料とを有する螢光体混合物を管内壁に被着してなり、
前記螢光体混合物において前記希土類ホスフェイト螢光
体の調合比が２４重量％以上４２重量％以下であること
を特徴とする三波長域発光形螢光ランプ。1. A radiation spectrum having a maximum emission wavelength near 490 nm and having a general formula of 4 (Sr 1-x , Eu x ) O
・ YAl 2 O 3 (however, 0.005 ≦ x ≦ 0.2, 6 ≦ y ≦ 8)
A first material consisting of an aluminum phosphor, represented by
It exhibits an emission spectrum having a maximum emission wavelength in the wavelength range of 440 to 460 nm, and is selected from a divalent europium-activated alkaline earth metal aluminate phosphor and an alkaline earth metal halophosphate phosphor. A second material consisting of at least one kind and showing an emission spectrum having a maximum emission wavelength in a wavelength range of 520 to 560 nm,
A third material consisting of at least one selected from a rare earth magnesium aluminate phosphor and a rare earth phosphate phosphor activated with trivalent terbium and / or trivalent cerium, and a maximum in a wavelength range of 600 to 620 nm. A fourth emission spectrum having a luminescence wavelength, comprising a rare earth oxide phosphor activated with trivalent europium
A fluorescent substance mixture having a material and a fluorescent substance mixture deposited on the inner wall of the tube,
A three-wavelength band emission type fluorescent lamp, wherein the mixing ratio of the rare earth phosphate phosphor in the phosphor mixture is 24% by weight or more and 42% by weight or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59077832A JPH0619975B2 (en) | 1984-04-18 | 1984-04-18 | Fluorescent lamp emitting light in three wavelength range |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59077832A JPH0619975B2 (en) | 1984-04-18 | 1984-04-18 | Fluorescent lamp emitting light in three wavelength range |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60220547A JPS60220547A (en) | 1985-11-05 |
| JPH0619975B2 true JPH0619975B2 (en) | 1994-03-16 |
Family
ID=13645014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59077832A Expired - Lifetime JPH0619975B2 (en) | 1984-04-18 | 1984-04-18 | Fluorescent lamp emitting light in three wavelength range |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0619975B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8700808A (en) * | 1987-04-07 | 1988-11-01 | Philips Nv | METHOD FOR PREPARING A LUMINESCENT EU2-ACTIVATED STRONTIUM ALUMINATE, ALUMINATED IN SUCH A WAY AND LOW-PRESSURE VAPOR DISCHARGE LAMP INCLUDING SUCH AN ALUMINATE |
| US5049779A (en) * | 1989-05-02 | 1991-09-17 | Nichia Kagaku Kogyo K.K. | Phosphor composition used for fluorescent lamp and fluorescent lamp using the same |
| DE10058852A1 (en) * | 2000-11-27 | 2002-06-06 | Raylux Gmbh | Compact, electrodeless, low-pressure gas discharge lamp with increased service life |
| JP5370047B2 (en) * | 2009-09-25 | 2013-12-18 | 三菱化学株式会社 | Color rendering improvement method for white light emitting device and white light emitting device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5842590B2 (en) * | 1977-08-30 | 1983-09-20 | 株式会社東芝 | fluorescent lamp |
-
1984
- 1984-04-18 JP JP59077832A patent/JPH0619975B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60220547A (en) | 1985-11-05 |
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