JPH01156391A - Luminescent composition for fluorescent lamp and fluorescent lamp using said composition - Google Patents

Luminescent composition for fluorescent lamp and fluorescent lamp using said composition

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Publication number
JPH01156391A
JPH01156391A JP31682287A JP31682287A JPH01156391A JP H01156391 A JPH01156391 A JP H01156391A JP 31682287 A JP31682287 A JP 31682287A JP 31682287 A JP31682287 A JP 31682287A JP H01156391 A JPH01156391 A JP H01156391A
Authority
JP
Japan
Prior art keywords
fluorescent lamp
blue
luminescent
component
emission spectrum
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
Application number
JP31682287A
Other languages
Japanese (ja)
Other versions
JPH0260705B2 (en
Inventor
Yuji Sai
祐司 斎
Takaharu Ichinomiya
敬治 一ノ宮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nichia Chemical Industries Ltd
Original Assignee
Nichia Chemical Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nichia Chemical Industries Ltd filed Critical Nichia Chemical Industries Ltd
Priority to JP31682287A priority Critical patent/JPH01156391A/en
Publication of JPH01156391A publication Critical patent/JPH01156391A/en
Publication of JPH0260705B2 publication Critical patent/JPH0260705B2/ja
Granted legal-status Critical Current

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  • Luminescent Compositions (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

PURPOSE:To produce the title luminescent compsn. having high luminous efficiency and satisfactory color rendering and capable of being produced at a low cost, by incorporating a particular proportion of a particular blue luminescent component as a blue luminescent component used for a multicomponent mixture type fluorescent lamp. CONSTITUTION:This luminescent composition is prepd. by incorporating the following compound as a blue luminescent component of a multicomponent mixture type fluorescent lamp. Said compound emits a color in a blue region upon being excited by UV at 253.7nm. Its main luminescent wavelength is 460-510nm, the half-value width of the emission spectrum is 50nm or more, the chromaticity coordinate of the emission spectrum is 0.10<=x<=0.30 and 0.20<=y<=0.40 in a CIE 1931 chromaticity diagram, and the spectral reflectance at 380-500nm is 70% or more when a deposited MgO film is supposed to be 10%. The compound is mixed in a proportion defined by solid lines in the diagram depending upon the color temp. in the fluorescent lamp. Examples of the blue phosphor include an Sb-activated calcium halophosphate blue phosphor and magnesium tungstate blue phosphor.

Description

【発明の詳細な説明】 [産業上の利用分野] 本発明は、紫外線で刺激されて発光し、色温度が250
0に〜8000にの範囲にあり、高効率で高演色である
蛍光ランプ用の発光組成物と、これを使用した蛍光ラン
プに関する。
[Detailed Description of the Invention] [Industrial Application Field] The present invention emits light when stimulated by ultraviolet rays and has a color temperature of 250.
The present invention relates to a luminescent composition for a fluorescent lamp having a high efficiency and high color rendering in the range of 0 to 8000, and a fluorescent lamp using the same.

[従来の技術とその問題点] 従来、一般照明用の蛍光ランプに最も多用されている蛍
光体として、アンチモン、マンガン共付活ハロリン酸カ
ルシウム蛍光体がある。この蛍光体を使用したランプは
、発光効率は高いものの、その演色性は、白色(蛍光ラ
ンプ発光色の色温度4200K)のもので、平均演色評
価数Ra=83であり、また、昼光色(蛍光ランプ発光
色の色温度6700 K)のもので平均演色評価数Ra
==77程度と非常に低く、高演色性を要求される場所
での使用には不向きである。
[Prior art and its problems] Antimony and manganese co-activated calcium halophosphate phosphors are the phosphors most commonly used in fluorescent lamps for general lighting. Although lamps using this phosphor have high luminous efficiency, their color rendering properties are white (color temperature of fluorescent lamp emission color: 4200K), average color rendering index Ra = 83, and daylight color (fluorescent color). The color temperature of the lamp emission color is 6700 K), and the average color rendering index Ra
= = about 77, which is very low, making it unsuitable for use in places where high color rendering properties are required.

比較的高い演色性を有する蛍光ランプとしては、特公昭
5B−21672号公報に開示されているような、45
0 nm、545 nm、及び610nm付近に発光ピ
ークを有する3種の狭帯域発光蛍光体の組合せによる三
波長域発光型蛍光ランプが製造されている。
As a fluorescent lamp having a relatively high color rendering property, a fluorescent lamp such as 45, as disclosed in Japanese Patent Publication No. 5B-21672,
Three-wavelength fluorescent lamps have been manufactured using a combination of three types of narrow-band emitting phosphors having emission peaks around 0 nm, 545 nm, and 610 nm.

この三波長域発光型蛍光ランプは、青色蛍光体として、
2価のユーロピウム付活アルカリ土類アルミン酸塩蛍光
体、及び2価のユーロピウム付活アルカリ土類クロロア
パタイト蛍光体等を、緑色蛍光体として、セリウム、テ
ルビウム共付活リン酸ランタン蛍光体及び、セリウム、
テルビウム共付活アルミン酸マグネシウム蛍光体等を、
また赤色蛍光体として、3価のユーロピウム付活酸化イ
ツトリウム蛍光体等を用い、平均演色評価数Ra=82
、かつ高発光効率の蛍光ランプが開発され、市場化され
ている。
This three-wavelength fluorescent lamp uses blue phosphor as
A divalent europium activated alkaline earth aluminate phosphor, a divalent europium activated alkaline earth chloroapatite phosphor, etc. are used as a green phosphor, a cerium and terbium coactivated lanthanum phosphate phosphor, cerium,
Terbium co-activated magnesium aluminate phosphor, etc.
In addition, a trivalent europium-activated yttrium oxide phosphor is used as the red phosphor, and the average color rendering index Ra is 82.
Fluorescent lamps with high luminous efficiency have been developed and put on the market.

しかし、この三波長域発光型蛍光ランプは、現在最も多
く使用されている、アンチモン、マンガン付活ハロリン
酸カルシウム蛍光体を用いた蛍光ランプと比較すれは、
光束は著しく改良されてはいるが、演色性はまだ充分満
足するには至らず、更に、蛍光体に、青、緑、赤、三色
共、希土類原料を使用している為、アンチモン、マンガ
ン共付活ハロリン酸カルシウム蛍光体に比べて、その数
十倍と著しく高価な蛍光体となる欠点がある。
However, compared to fluorescent lamps that use antimony- and manganese-activated calcium halophosphate fluorescent lamps, which are currently the most commonly used fluorescent lamps,
Although the luminous flux has been significantly improved, the color rendering properties are still not fully satisfactory.Furthermore, since the phosphor uses rare earth raw materials for blue, green, red, and three colors, antimony and manganese are used. It has the disadvantage that it is significantly more expensive than a co-activated calcium halophosphate phosphor, which is several tens of times more expensive.

一般に高演色性ランプと言われるものは、その演色性の
高さに応じて、DL (Ra≧75)、SDL  (R
a≧86)、EDL  (Ra≧95)型と、JISZ
9301で区分されており、これまで種々の蛍光体の組
合せを用いた蛍光ランプが知られている。
In general, what is called a high color rendering lamp is DL (Ra≧75), SDL (R
a≧86), EDL (Ra≧95) type, and JISZ
9301, and fluorescent lamps using various combinations of phosphors have been known so far.

例えば、特開昭54−102073号に開示された蛍光
ランプは、4種の蛍光体の絹合せにより、平均演色評価
数Ra=99としている。また、同様に、5種あるいは
6種の蛍光体を用いてRa≧95となる蛍光ランプの開
発も行なわれている。
For example, the fluorescent lamp disclosed in Japanese Patent Application Laid-Open No. 54-102073 has an average color rendering index Ra=99 by combining four types of phosphors. Similarly, fluorescent lamps with Ra≧95 using five or six types of phosphors are also being developed.

しかしながら、これ等の高演色性蛍光ランプの光束は、
40WランプFL40Sで1800〜2300Lm程度
にすぎず、著しく発光効率が低くなる欠点があった。
However, the luminous flux of these high color rendering fluorescent lamps is
The 40W lamp FL40S has only about 1,800 to 2,300 Lm, which has the drawback of significantly lower luminous efficiency.

[発明の目的] 以上のように、従来の蛍光ランプに於ては、平均演色評
価数Raを向上する改良が試みられているが、高い発光
効率と充分に満足できる演色性を共に有し、かつ、安価
に製造することができる蛍光ランプは得られていないの
が現状である。
[Objective of the Invention] As described above, in conventional fluorescent lamps, attempts have been made to improve the average color rendering index Ra. Moreover, at present, a fluorescent lamp that can be manufactured at low cost has not been obtained.

本発明はこうした問題点に対してなされたものであり、
高い発光効率と充分に満足できる演色性を有し、なおか
つ、安価に製造することができる発光組成物と蛍光ラン
プを提供する事を目的とする。
The present invention has been made to address these problems,
It is an object of the present invention to provide a luminescent composition and a fluorescent lamp that have high luminous efficiency and sufficiently satisfactory color rendering properties and can be manufactured at low cost.

[問題点を解決するための手段] かかる問題点を解決するために、本発明は、多成分混合
蛍光ランプに用いられる青色発光成分として、253.
7nmの紫外線励起による発光の主ピーク波長を460
nm 〜510nmの間に持ち、かつ、発光スペクトル
の半値幅が50nm〜175nmの間であり、かつ、発
光色度座標がCIE1931色度図に於て、 x:0.10≦x≦0.30、 y:o、20≦y≦0.40の範囲内であり、また、酸
化マグネシウムの煙着膜の分光反射率を100%とした
場合、380nm〜500 nmの分光反射率が70%
以上である青色発光蛍光体を使用している。
[Means for Solving the Problems] In order to solve the problems, the present invention uses 253.
The main peak wavelength of emission due to 7 nm ultraviolet excitation is 460
nm to 510 nm, the half width of the emission spectrum is between 50 nm to 175 nm, and the emission chromaticity coordinate is x: 0.10≦x≦0.30 in the CIE 1931 chromaticity diagram. , y: o, within the range of 20≦y≦0.40, and when the spectral reflectance of the magnesium oxide smoke film is 100%, the spectral reflectance from 380 nm to 500 nm is 70%.
The above blue-emitting phosphor is used.

更にまた、青色発光蛍光体の重量混合比は、第1図の実
線で囲まれた範囲で示す領域内に特定されている。第1
図に示す領域外の混合率の蛍光組成物は、平均演色評価
数Raが低くなり、好ましい演色性は得られない。青色
蛍光体の混合量は、発光光束と、演色性と、価格を考慮
して第1図の領域に特定している。
Furthermore, the weight mixing ratio of the blue-emitting phosphors is specified within the region indicated by the solid line in FIG. 1st
Fluorescent compositions with mixing ratios outside the range shown in the figure have a low average color rendering index Ra, and preferred color rendering properties cannot be obtained. The mixing amount of the blue phosphor is specified in the range shown in FIG. 1 in consideration of luminous flux, color rendering properties, and price.

[作用効果] 本発明者等は、この発明の作用効果を明確にする為に、
次の発光組成物を試作した。
[Operation and Effect] In order to clarify the operation and effect of this invention, the present inventors have
The following luminescent composition was experimentally produced.

青色発光成分として、253.7nmの紫外線の励起に
より発光するピーク波長が、460nm〜510nmの
間にあり、かつ、発光スペクトルの半値幅が50nm〜
175nmの間にあり、発光スペクトルの色度座標がC
IE1931色度図に於て0゜10≦x≦0.30.0
.20≦y≦0.40の範囲内であり、380 nm〜
500nmの分光反射率が酸化マグネシウムの煙着膜の
分光反射率を100%とした場合に於て70%以上であ
るような青色蛍光体の例として■〜■の蛍光体を使用し
た。
As a blue light emitting component, the peak wavelength of light emitted by excitation of 253.7 nm ultraviolet light is between 460 nm and 510 nm, and the half width of the emission spectrum is between 50 nm and 510 nm.
175 nm, and the chromaticity coordinate of the emission spectrum is C
In IE1931 chromaticity diagram, 0°10≦x≦0.30.0
.. Within the range of 20≦y≦0.40, and from 380 nm to
Phosphors ① to ① were used as examples of blue phosphors whose spectral reflectance at 500 nm was 70% or more when the spectral reflectance of the smoked film of magnesium oxide was 100%.

下記■〜■の蛍光体を1種あるいは複数種混合し、その
重量混合比を第1図の実線で囲まれた範囲で示す領域に
特定している。
One or more of the following phosphors (1) to (2) are mixed, and the weight mixing ratio thereof is specified in the area indicated by the solid line in FIG.

■ アンチモン付活へロリン酸カルシウム青色蛍光体、 ■ タングステン酸マグネシウム青色蛍光体、■ チタ
ニウム付活ビロリン酸バリウム青色蛍光体、 ■ 2価のユーロピウム付活ケイ酸バリウムマグネシウ
ム蛍光体、 これ等の蛍光体の分光反射率を第3図に示す。
■ Antimony-activated calcium herophosphate blue phosphor, ■ Magnesium tungstate blue phosphor, ■ Titanium-activated barium birophosphate blue phosphor, ■ Divalent europium-activated barium magnesium silicate phosphor, etc. The spectral reflectance is shown in Figure 3.

この図に於て、曲線Aはアンチモン付活へロリン酸カル
シウム青色蛍光体、曲線Bはタングステン酸マグネシウ
ム青色蛍光体、曲線Cはチタニウム付活ビロリン酸バリ
ウム青色蛍光体、曲線りは2価のユーロピウム付活ケイ
酸バリウムマグネシウム蛍光体の反射率を示す。
In this figure, curve A is an antimony-activated calcium birophosphate blue phosphor, curve B is a magnesium tungstate blue phosphor, curve C is a titanium-activated barium birophosphate blue phosphor, and the curved line is a divalent europium-activated blue phosphor. The reflectance of active barium magnesium silicate phosphor is shown.

また、緑色発光成分として、発光の主ピーク波長が53
0nm〜550 nmの間にあり、かつ、発光スペクト
ルの半値幅が30nm以下である緑色蛍光体の例として
、セリウム、テルビウム共付活リン酸ランタン緑色蛍光
体と、セリウム、テルビウム共付活アルミン酸マグネシ
ウム緑色蛍光体を単独で、あるいは、これ等を混合して
使用した。
In addition, as a green luminescent component, the main peak wavelength of luminescence is 53
Examples of green phosphors whose wavelength is between 0 nm and 550 nm and whose emission spectrum has a half width of 30 nm or less include cerium and terbium coactivated lanthanum phosphate green phosphors and cerium and terbium coactivated aluminic acid. Magnesium green phosphor was used alone or in combination.

更に、赤色発光成分として、発光の主ピーク波長が60
0nm〜660 nmの間にあり、発光スペクトルの半
値幅が10nm以下であるような赤色蛍光体の例として
は、下記■〜■の蛍光体を1種あるいは複数種混合して
使用した。
Furthermore, as a red luminescent component, the main peak wavelength of luminescence is 60
As an example of a red phosphor having a wavelength between 0 nm and 660 nm and a half-value width of an emission spectrum of 10 nm or less, one type or a mixture of two or more of the following phosphors were used.

■ 3価のユーロピウム付活酸化イツトリウム赤色蛍光
体、 ■ 3価のユーロピウム付活リン酸、バナジン酸イツト
リウム赤色蛍光体、 ■ 3価のユーロピウム付活バナジン酸イツトリウム赤
色発光体、 ■ 2価のマンガン付活フッ化ゲルマニウム酸マグネシ
ウム赤色蛍光体、 この蛍光ランプは、第2表に示される優れた特性を有し
、第3表に示される従来の蛍光ランプを卓越する特性を
実現している。
■ Trivalent europium-activated yttrium oxide red phosphor, ■ Trivalent europium-activated phosphoric acid, yttrium vanadate red phosphor, ■ Trivalent europium-activated yttrium vanadate red phosphor, ■ Divalent manganese attached Active Magnesium Fluorogermanate Red Phosphor This fluorescent lamp has the excellent properties shown in Table 2, and achieves the properties shown in Table 3 that are superior to conventional fluorescent lamps.

即ち、本発明の蛍光ランプは、現在最も多用されている
一般照明用蛍光ランプに比べると、初光束が数%〜士数
%も向上し、平均演色評価数は、従来の63〜76に比
べて、89〜95と約20も向上する。また、本発明の
蛍光ランプは、従来の三波長域発光型蛍光ランプに比べ
ると、初光束は多少低下するが、平均演色評価数が、従
来の82から89〜95と相当に向上し、しかも、三波
長域発光型蛍光ランプに使用される青色発光蛍光体に比
べて、安価な青色発光蛍光体が多量に使用できるので、
蛍光組成物の価格が半減できる。更に、従来の自然色蛍
光ランプ(演色AA型)に比べると、本発明の蛍光ラン
プは、平均演色評価数がほぼ等しく、初光束が約50%
も向上する。更にまた、この発明の蛍光ランプは、従来
の高演色性蛍光ランプ(演色AAA型)に比べると、演
色性は多少低いが、初光束約50%も向上する。
That is, the fluorescent lamp of the present invention has an initial luminous flux improved by several to several percent compared to the fluorescent lamp for general illumination that is most commonly used at present, and an average color rendering index of 63 to 76 compared to the conventional one. That's an improvement of about 20 points, from 89 to 95. In addition, although the fluorescent lamp of the present invention has a somewhat lower initial luminous flux than a conventional three-wavelength fluorescent lamp, the average color rendering index has significantly improved from 82 to 89-95, and moreover, Compared to the blue-emitting phosphor used in three-wavelength fluorescent lamps, cheaper blue-emitting phosphors can be used in large quantities.
The price of fluorescent compositions can be halved. Furthermore, compared to conventional natural color fluorescent lamps (color rendering AA type), the fluorescent lamp of the present invention has approximately the same average color rendering index and an initial luminous flux of approximately 50%.
It also improves. Furthermore, the fluorescent lamp of the present invention has a somewhat lower color rendering property than a conventional high color rendering fluorescent lamp (color rendering AAA type), but its initial luminous flux is improved by about 50%.

[好ましい実施例コ 以下、本発明の実施例について図面に基づいて説明する
[Preferred Embodiments] Hereinafter, embodiments of the present invention will be described based on the drawings.

まず、第2表に示す青色成分蛍光体(第1の蛍光体、B
1、B2、B3、B4)と、緑色成分蛍光体(第2の蛍
光体、G1、G2)と、赤色成分蛍光体(第3の蛍光体
、R1、R2、R3、R4)とを用意する。青色成分蛍
光体、B1、B2、B3、B4のエネルギー分布図は第
2図に示す。
First, the blue component phosphor shown in Table 2 (first phosphor, B
1, B2, B3, B4), a green component phosphor (second phosphor, G1, G2), and a red component phosphor (third phosphor, R1, R2, R3, R4) are prepared. . The energy distribution diagram of the blue component phosphors B1, B2, B3, and B4 is shown in FIG.

第1表に示す蛍光体を、第2表に示す混合重量比で混合
して発光組成物とし、この発光組成物を、従来と同様に
して、管径32mmのガラス管(FL4O8)に被着し
て蛍光膜とし、40ワツトの直管型蛍光ランプを作成し
た。
The phosphors shown in Table 1 are mixed at the mixing weight ratio shown in Table 2 to form a luminescent composition, and this luminescent composition is applied to a glass tube (FL4O8) with a tube diameter of 32 mm in the same manner as before. A 40 watt straight tube fluorescent lamp was fabricated using this as a fluorescent film.

即ち、蛍光ランプは次の工程で試作した。That is, a fluorescent lamp was prototyped in the following steps.

酢酸ブチル[9,900g]にニトロセルロース[10
0g1を溶解する。この溶液500gを2播ビーカーに
採取し、本発明の蛍光体組成物約500gをよく攪拌し
て塗布液とする。
Butyl acetate [9,900g] and nitrocellulose [10
Dissolve 0g1. 500 g of this solution is collected into two beakers, and about 500 g of the phosphor composition of the present invention is thoroughly stirred to prepare a coating solution.

この塗布液を、立てられた管径32mmφ40ワット用
のガラス管5本のそれぞれの上部から注入して内面に塗
布し、次に乾燥させる。5本の塗膜の平均重量は5.3
gであった。
This coating solution was injected from the top of each of five 40-watt glass tubes with a diameter of 32 mm and coated on the inner surfaces, and then dried. The average weight of the five coatings is 5.3
It was g.

次に、これ等の塗布されたガラス管を600度に加熱し
た電気炉中で10分間ベーキングしてニトロセルロース
を焼失させる。更に、各々のガラス管にフィラメントを
装着し排気台に架けAr、Hgを注入しFL40S型の
蛍光ランプを製造した。
Next, these coated glass tubes are baked for 10 minutes in an electric furnace heated to 600 degrees to burn off the nitrocellulose. Furthermore, each glass tube was fitted with a filament, placed on an exhaust stand, and Ar and Hg were injected to produce an FL40S type fluorescent lamp.

得られた蛍光ランプの測光を行い、その測定結果を蛍光
体混合重量比と共に第2表に示す。
The obtained fluorescent lamp was subjected to photometry, and the measurement results are shown in Table 2 together with the phosphor mixture weight ratio.

第2表に示すように、実施例1〜60で得られた本発明
の蛍光ランプは、平均演色評価数Raが約90以上であ
り、かつ、初光束は、アンチモン、マンガン共付活へロ
リン酸カルシウムを蛍光膜として用いた、現在最も多用
されている蛍光ランプに比べて向上している。
As shown in Table 2, the fluorescent lamps of the present invention obtained in Examples 1 to 60 have an average color rendering index Ra of about 90 or more, and an initial luminous flux due to antimony and manganese co-activation. This is an improvement over the currently most commonly used fluorescent lamp, which uses calcium phosphate as a fluorescent film.

この発明の発光組成物とこれを使用した蛍光ランプは、
青色発光成分の混合率を調整して色温度が調整できる。
The luminescent composition of this invention and the fluorescent lamp using the same are:
Color temperature can be adjusted by adjusting the mixing ratio of blue light emitting components.

第2表に示すように、青色発光成分の混合率を少なくし
て、赤色発光成分の混合率を多くすると色温度が低下し
、反対に、青色発光成分の混合率を高くして、赤色発光
成分の混合率を少なくすると、色温度を高くできる。通
常、蛍光ランプの色温度は、2500〜8000にの範
囲に調整される。従って、この発明の発光組成物とこれ
を使用した蛍光ランプは、青色発光成分の混合率を第1
図の実線で囲まれた範囲で示される領域に特定している
As shown in Table 2, when the mixing ratio of the blue-emitting component is decreased and the mixing ratio of the red-emitting component is increased, the color temperature decreases; By reducing the mixing ratio of the components, the color temperature can be increased. Typically, the color temperature of fluorescent lamps is adjusted to a range of 2,500 to 8,000 degrees Celsius. Therefore, the luminescent composition of the present invention and the fluorescent lamp using the same have a mixing ratio of blue luminescent components that is
It is specified in the area shown by the solid line in the figure.

更に、この発明の発光組成物とこれを使用した蛍光ラン
プは、優れた光出力と高演色性とを実現する為に、青色
発光成分の主発光波長と、発光スペクトルの半値幅と、
X値とy値とを特定している。青色発光成分のX値とy
値とが、0.10≦x≦0.30.0.20≦y≦0.
40の範囲にある時に高演色性が実現でき、また、青色
発光成分の主発光波長が長すぎても短すぎても優れた演
色性が実現できず、更に、半値幅が50nm以下になっ
ても優れた光出力と高演色性とが実現できない。
Furthermore, in order to achieve excellent light output and high color rendering properties, the luminescent composition of the present invention and the fluorescent lamp using the composition have the main emission wavelength of the blue luminescent component, the half-width of the emission spectrum,
The X value and y value are specified. X value and y of blue luminescent component
0.10≦x≦0.30.0.20≦y≦0.
40, high color rendering properties can be achieved, and if the main emission wavelength of the blue light emitting component is too long or too short, excellent color rendering properties cannot be achieved, and furthermore, if the half-value width is 50 nm or less, However, it is not possible to achieve excellent light output and high color rendering properties.

更に、本発明、青色発光成分は発光する光を有効に反射
して蛍光体自体が発光色を吸収しないように、青色発光
成分の分光反射率を、波長が380〜500nmの範囲
に於て、酸化マグネシウム煙着膜に対して70%以上に
特定しているが、分光反射率がこれ以下の青色発光成分
を使用した場合、優れた発光出力の発光組成物が実現で
きない。
Furthermore, in the present invention, the spectral reflectance of the blue light emitting component is adjusted in the wavelength range of 380 to 500 nm so that the blue light emitting component effectively reflects the emitted light and the phosphor itself does not absorb the emitted color. Although it is specified that the blue light emitting component has a spectral reflectance of 70% or more relative to the magnesium oxide smoked film, if a blue light emitting component having a spectral reflectance lower than this is used, a light emitting composition with excellent light emitting output cannot be realized.

第3図の曲線A、  B、 C,Dで示すように、アン
チモン付活ハロリン酸カルシウム青色蛍光体、タングス
テン酸マグネシウム青色蛍光体、チタニウム付活ピロリ
ン酸バリウム青色蛍光体、2価のユーロピウム付活ケイ
酸バリウムマグネシウム蛍光体は、この発明の青色発光
成分として好ましい反射率を有するが、第4図に示すよ
うに、380nm〜500nmで反射率が低下する、2
価のユーロピウム付活ホウリン酸ストロンチウム蛍光体
(曲線E)、2価のユーロピウム付活アルミン酸ストロ
ンチウム蛍光体(曲線F)は、この発明の青色発光成分
として使用できない。
As shown by curves A, B, C, and D in Figure 3, antimony-activated calcium halophosphate blue phosphor, magnesium tungstate blue phosphor, titanium-activated barium pyrophosphate blue phosphor, divalent europium-activated silicon The barium magnesium oxide phosphor has a preferable reflectance as the blue emitting component of the present invention, but as shown in FIG. 4, the reflectance decreases in the range of 380 nm to 500 nm.
A valent europium-activated strontium borate phosphor (curve E) and a divalent europium-activated strontium aluminate phosphor (curve F) cannot be used as the blue-emitting component of this invention.

更に、この発明の発光組成物は、青色発光成分−15= に、特定の発光特性の緑色発光成分と赤色発光成分とが
混合されて、全体として優れた光出力と高演色性とを実
現している。
Further, in the luminescent composition of the present invention, a green luminescent component and a red luminescent component having specific luminescent characteristics are mixed with the blue luminescent component -15=, thereby realizing excellent light output and high color rendering properties as a whole. ing.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の蛍光ランプに用いる青色成分蛍光体の
混合重量比の領域を示すグラフ、第2図は、本発明の実
施例の蛍光ランプに用いる青色成分蛍光体の分光発光特
性を示すグラフ、第3図はこの発明の発光組成物に青色
発光成分として使用される蛍光体の分光反射特性を示す
グラフ、第4図は本発明の発光組成物に青色発光成分と
して使用されない青色発光蛍光体の分光反射率を示すグ
ラフ、第5図はこの発明の発光組成物に使用する蛍光体
の具体例を示す図表、第6図および第7図はこの発明の
実施例に係る発光組成物の発光特性を示す図表、第8図
は従来の蛍光体の発光特性を示す図表である。
FIG. 1 is a graph showing the mixing weight ratio range of the blue component phosphor used in the fluorescent lamp of the present invention, and FIG. 2 is a graph showing the spectral emission characteristics of the blue component phosphor used in the fluorescent lamp of the example of the present invention. Graph, FIG. 3 is a graph showing the spectral reflection characteristics of the phosphor used as the blue emitting component in the luminescent composition of the present invention, and FIG. 4 is a graph showing the spectral reflection characteristics of the phosphor used as the blue luminescent component in the luminescent composition of the present invention. FIG. 5 is a graph showing specific examples of phosphors used in the luminescent composition of the present invention, and FIGS. 6 and 7 are graphs showing the spectral reflectance of the luminescent composition of the present invention. FIG. 8 is a chart showing the light emitting characteristics of a conventional phosphor.

Claims (4)

【特許請求の範囲】[Claims] (1) 多成分混合型蛍光ランプに用いられる青色発光
成分として、253.7nmの紫外線励起により青色域
に発光し、その主発光波長が460nm〜510nmの
間であって、発光スペクトルの半値幅が50nm以上で
あり、発光スペクトルの色度座標がCIE1931色度
図に於て0.10≦x≦0.30、0.20≦y≦0.
40の範囲内であり、酸化マグネシウムの煙着膜を10
0%とした場合、380nm〜500nmの分光反射率
が70%以上であり、かつ、上記多成分混合型蛍光ラン
プにおける色温度に応じて添付第1図の実線に囲まれた
範囲の割合にて青色発光成分を混合してなることを特徴
とする発光組成物。
(1) The blue light emitting component used in a multi-component mixed fluorescent lamp emits light in the blue region upon excitation of ultraviolet light at 253.7 nm, the main emission wavelength is between 460 nm and 510 nm, and the half width of the emission spectrum is 50 nm or more, and the chromaticity coordinates of the emission spectrum are 0.10≦x≦0.30, 0.20≦y≦0 in the CIE1931 chromaticity diagram.
It is within the range of 40, and the smoke film of magnesium oxide is 10
When set to 0%, the spectral reflectance from 380 nm to 500 nm is 70% or more, and the ratio is within the range surrounded by the solid line in attached Figure 1 according to the color temperature of the multi-component mixed fluorescent lamp. A luminescent composition comprising a mixture of a blue luminescent component.
(2) 上記多成分混合型蛍光ランプに用いられる多成
分として、主発光波長を530nm〜550nmの間と
し、発光スペクトルの半値幅を30nm以下とする緑色
発光成分と、主発光波長を600nm〜660nmの間
とし、発光スペクトルの半値幅を10nm以下とする赤
色発光成分とを少なくとも混合してなることを特徴とす
る特許請求の範囲第1項記載の発光組成物。
(2) The multicomponents used in the above multicomponent mixed fluorescent lamp include a green light emitting component with a main emission wavelength between 530 nm and 550 nm and a half width of the emission spectrum of 30 nm or less, and a green light emission component with a main emission wavelength between 600 nm and 660 nm. 2. The luminescent composition according to claim 1, wherein the luminescent composition comprises at least a red luminescent component having an emission spectrum with a half-width of 10 nm or less.
(3) 253.7nmの紫外線励起により青色域に発
光し、その主発光波長が460nm〜510nmの間で
あって、発光スペクトルの半値幅が50nm以上であり
、発光スペクトルの色度座標がCIE1931色度図に
於て0.10≦x≦0.30、0.20≦y≦0.40
の範囲内であり、かつ、酸化マグネシウムの煙着膜を1
00%とした場合、380nm〜500nmの分光反射
率が70%以上である青色発光成分を設定色温度に応じ
て添付第1図に実線で囲まれた範囲の割合にて混合して
なる発光組成物を蛍光膜として有したことを特徴とする
蛍光ランプ。
(3) It emits light in the blue region upon excitation of ultraviolet light at 253.7 nm, the main emission wavelength is between 460 nm and 510 nm, the half width of the emission spectrum is 50 nm or more, and the chromaticity coordinates of the emission spectrum are CIE1931 colors. In the degree diagram, 0.10≦x≦0.30, 0.20≦y≦0.40
and the smoke film of magnesium oxide is within the range of 1
00%, a luminescent composition made by mixing blue luminescent components with a spectral reflectance of 70% or more in the range of 380 nm to 500 nm at a ratio within the range enclosed by the solid line in attached Figure 1 according to the set color temperature. A fluorescent lamp characterized by having a substance as a fluorescent film.
(4)上記発光組成物が、主発光波長を530nm〜5
50nmとし、発光スペクトルの半値幅を30nm以下
とする緑色発光成分と、主発光波長を600nm〜66
0nmの間とし、発光スペクトルの半値幅を10nm以
下とする赤色発光成分とを少なくとも混合してなること
を特徴とする特許請求の範囲第3項記載の蛍光ランプ。
(4) The luminescent composition has a main emission wavelength of 530 nm to 5 nm.
50 nm, and a green emission component with a half width of the emission spectrum of 30 nm or less, and a main emission wavelength of 600 nm to 66 nm.
4. The fluorescent lamp according to claim 3, wherein the fluorescent lamp is mixed with at least a red light-emitting component whose emission spectrum has a half-width of 10 nm or less.
JP31682287A 1987-12-14 1987-12-14 Luminescent composition for fluorescent lamp and fluorescent lamp using said composition Granted JPH01156391A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP31682287A JPH01156391A (en) 1987-12-14 1987-12-14 Luminescent composition for fluorescent lamp and fluorescent lamp using said composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP31682287A JPH01156391A (en) 1987-12-14 1987-12-14 Luminescent composition for fluorescent lamp and fluorescent lamp using said composition

Publications (2)

Publication Number Publication Date
JPH01156391A true JPH01156391A (en) 1989-06-19
JPH0260705B2 JPH0260705B2 (en) 1990-12-18

Family

ID=18081301

Family Applications (1)

Application Number Title Priority Date Filing Date
JP31682287A Granted JPH01156391A (en) 1987-12-14 1987-12-14 Luminescent composition for fluorescent lamp and fluorescent lamp using said composition

Country Status (1)

Country Link
JP (1) JPH01156391A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002198008A (en) * 2000-08-30 2002-07-12 General Electric Co <Ge> Fluorescent lamp with high color rendering property
JP2009140754A (en) * 2007-11-13 2009-06-25 Nichia Corp Fluorescent lamp
US7828993B2 (en) 2002-12-20 2010-11-09 Tovoda Gosei Co.. Ltd. Phosphor and optical device using same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60220546A (en) * 1984-04-18 1985-11-05 Matsushita Electronics Corp Fluorescent lamp

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60220546A (en) * 1984-04-18 1985-11-05 Matsushita Electronics Corp Fluorescent lamp

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002198008A (en) * 2000-08-30 2002-07-12 General Electric Co <Ge> Fluorescent lamp with high color rendering property
US7828993B2 (en) 2002-12-20 2010-11-09 Tovoda Gosei Co.. Ltd. Phosphor and optical device using same
JP2009140754A (en) * 2007-11-13 2009-06-25 Nichia Corp Fluorescent lamp

Also Published As

Publication number Publication date
JPH0260705B2 (en) 1990-12-18

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