JPH0625358B2 - Fluorescent high pressure mercury lamp - Google Patents
Fluorescent high pressure mercury lampInfo
- Publication number
- JPH0625358B2 JPH0625358B2 JP59191043A JP19104384A JPH0625358B2 JP H0625358 B2 JPH0625358 B2 JP H0625358B2 JP 59191043 A JP59191043 A JP 59191043A JP 19104384 A JP19104384 A JP 19104384A JP H0625358 B2 JPH0625358 B2 JP H0625358B2
- Authority
- JP
- Japan
- Prior art keywords
- phosphor
- pressure mercury
- mercury lamp
- fluorescent
- color rendering
- 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
- 229910052753 mercury Inorganic materials 0.000 title claims description 36
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 title claims description 34
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 30
- 229910052693 Europium Inorganic materials 0.000 claims description 6
- OGPBJKLSAFTDLK-UHFFFAOYSA-N europium atom Chemical compound [Eu] OGPBJKLSAFTDLK-UHFFFAOYSA-N 0.000 claims description 6
- QWVYNEUUYROOSZ-UHFFFAOYSA-N trioxido(oxo)vanadium;yttrium(3+) Chemical class [Y+3].[O-][V]([O-])([O-])=O QWVYNEUUYROOSZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 230000005855 radiation Effects 0.000 claims description 4
- 229910052684 Cerium Inorganic materials 0.000 claims description 3
- FIMLVRCVMNGRMP-UHFFFAOYSA-N [Mn].[Eu] Chemical compound [Mn].[Eu] FIMLVRCVMNGRMP-UHFFFAOYSA-N 0.000 claims description 3
- 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 claims description 3
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims description 3
- DXNVUKXMTZHOTP-UHFFFAOYSA-N dialuminum;dimagnesium;barium(2+);oxygen(2-) Chemical class [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 description 3
- IBIRZFNPWYRWOG-UHFFFAOYSA-N phosphane;phosphoric acid Chemical compound P.OP(O)(O)=O IBIRZFNPWYRWOG-UHFFFAOYSA-N 0.000 claims description 2
- 238000009877 rendering Methods 0.000 description 22
- 239000000126 substance Substances 0.000 description 7
- 230000004907 flux Effects 0.000 description 5
- 230000003595 spectral effect Effects 0.000 description 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009503 electrostatic coating Methods 0.000 description 3
- 239000011777 magnesium Substances 0.000 description 3
- 239000011572 manganese Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000295 emission spectrum Methods 0.000 description 2
- 150000002730 mercury Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 108010043121 Green Fluorescent Proteins Proteins 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- ZOGYOOUMDVKYLM-UHFFFAOYSA-N phosphane phosphorous acid Chemical compound P.OP(O)O ZOGYOOUMDVKYLM-UHFFFAOYSA-N 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 229910052727 yttrium Inorganic materials 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 本発明は演色性を改善した螢光高圧水銀灯に関する。Description: FIELD OF THE INVENTION The present invention relates to a fluorescent high pressure mercury lamp with improved color rendering.
従来例の構成とその問題点 螢光高圧水銀灯はそのすぐ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
圧放電灯のひとつである。近年螢光高圧水銀灯の演色性
を高める検討がなされ、従来の赤色螢光体だけを用いた
螢光高圧水銀灯の平均演色評価数（以下Raと記述する）
が４３程度であるのに対して、赤色螢光体と青緑色螢光
体を用いてRa≒50が得られている。しかしながら、これ
らの改善された演色性を有する螢光高圧水銀灯において
も屋内照明用に広く使用するためにはまだ演色性の点で
不十分であり、普及するには至っていない。このように
従来高圧水銀灯の演色性改善が十分になされない理由の
一つは、高圧水銀灯の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
ことが知られていた。この水銀輝線出力に関しては、例
えば酸化チタン塗膜を形成することによってある程度抑
制することができるものであるが、単にこの水銀輝線を
抑制することはランプ効率の低下を伴うため不適当であ
ると考えられていた。すなわち、従来の演色改善形高圧
水銀灯では前記青色域の水銀輝線を抑制することなく演
色性の改善をはかっているため、その改善も十分ではな
く屋内照明に広く普及させるためには、なお一層の改善
が望まれていた。Structure of Conventional Example and Its Problems The fluorescent high pressure mercury lamp is one of the typical high pressure discharge lamps widely used for general lighting mainly for outdoor lighting due to its excellent life characteristics. In recent years, studies have been conducted to enhance the color rendering properties of fluorescent high-pressure mercury lamps, and the average color rendering index of fluorescent high-pressure mercury lamps using only conventional red phosphors (hereinafter referred to as Ra).
Is about 43, whereas Ra≈50 is obtained using a red phosphor and a blue-green phosphor. However, even the fluorescent high-pressure mercury lamp having these improved color rendering properties is still insufficient in terms of color rendering properties for wide use in indoor lighting, and has not yet spread. One of the reasons why the color rendering of conventional high-pressure mercury lamps has not been sufficiently improved is 405 emitted from the arc tube of the high-pressure mercury lamp.
It has been known that this is because the mercury and 436 nm mercury line outputs are too strong. This mercury emission line output can be suppressed to some extent, for example, by forming a titanium oxide coating film, but it is considered inappropriate to simply suppress this mercury emission line because it lowers the lamp efficiency. It was being done. That is, in the conventional color rendering improved high-pressure mercury lamp, the color rendering property is improved without suppressing the mercury emission line in the blue region. Therefore, the improvement is not sufficient, and further widespread use in indoor lighting requires further improvement. Improvement was desired.
発明の目的 本発明は青色域の水銀輝線出力を抑制した螢光高圧水銀
灯に係り、とくにその演色性を大幅に改善した螢光高圧
水銀灯を提供するものである。OBJECT OF THE INVENTION The present invention relates to a fluorescent high-pressure mercury lamp that suppresses the output of mercury emission lines in the blue region, and particularly to a fluorescent high-pressure mercury lamp whose color rendering property is significantly improved.
発明の構成 本発明の螢光高圧水銀灯は、可視輻射と紫外線輻射とを
放出する発光管と、その外管の内面に被着形成された螢
光体被膜とを備える高圧水銀灯において、前記螢光体被
膜が３価のセリウムで付活されたイットリウムアルミネ
ート螢光体である第１の螢光体と、２価のユーロピウム
・マンガン付活バリウム・マグネシウムアルミネート蛍
光体である第２の螢光体と、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蛍光体および３価のユー
ロピウムで付活されたイットリウム・バナデートフオス
フェート蛍光体の少なくとも１種である第３の螢光体と
からなることを特徴とする螢光高圧水銀灯であり、前記
発光管から放出される青色域の水銀輝線を吸収して黄緑
色域に発光を付加するとともに、青緑色域および赤色域
にも同時に発光を付加することにより、その演色性を大
幅に改善したものである。Structure of the invention The fluorescent high-pressure mercury lamp of the present invention is a high-pressure mercury lamp comprising a light-emitting tube that emits visible radiation and ultraviolet radiation, and a fluorescent substance coating formed on the inner surface of the outer tube, wherein The first phosphor, which is a yttrium aluminate phosphor whose body coating is activated by trivalent cerium, and the second phosphor, which is a divalent europium-manganese activated barium-magnesium aluminate phosphor. And a third phosphor, which is at least one of a trivalent europium-activated yttrium vanadate phosphor and a trivalent europium-activated yttrium vanadate phosphite phosphor. A fluorescent high-pressure mercury lamp characterized in that it absorbs the mercury emission line in the blue region emitted from the arc tube and adds light emission to the yellow-green region, and the same in the blue-green region and the red region. By adding light emission at times, the color rendering property is greatly improved.
以下、本発明の実施例について図面を参照して説明す
る。Hereinafter, embodiments of the present invention will be described with reference to the drawings.
実施例の説明 実施例１ 赤色螢光体にY0.95VO4：Eu0.05を７５重量％、緑色螢光
体にBa0.8Mg1.93Al14O24：Eu0.2Mn0.07を２０重量％、
黄緑色螢光体にY2.9Al5O12：Ce0.1を５重量％の割合で
混合し、それに５重量％のエロジール（SiO2）を加えて
十分に混合した後、１００Ｗ高圧水銀灯の外管内面に2.
0mg/cm2の膜厚となるように静電塗布を行った。この外
管内に発光管を組み込んで１００Ｗの高圧水銀灯を製作
した。得られたランプの光束は４８４０ｍ、色温度４
１００Ｋ、平均演色評価数Raは６０であり、従来の赤色
螢光体と青緑色螢光体だけの混合による１００Ｗ高圧水
銀灯の場合、その光束が４８００ｍ，Ra５０程度であ
るのに比べて明らかな改善がみられた。この改善は青色
螢光体と青緑色螢光体の他に、さらに加えて用いている
黄緑色螢光体が持っている短波長青色域を吸収する効果
により得られているものである。Description of Examples Example 1 75 wt% Y 0.95 VO 4 : Eu 0.05 for a red fluorescent substance, 20 wt% Ba 0.8 Mg 1.93 Al 14 O 24 : Eu 0.2 Mn 0.07 for a green fluorescent substance,
After mixing Y 2.9 Al 5 O 12 : Ce 0.1 at a ratio of 5% by weight with a yellow-green fluorescent substance, adding 5% by weight of erogel (SiO 2 ) to the mixture and thoroughly mixing it, and then in an outer tube of a 100 W high-pressure mercury lamp. 2.
Electrostatic coating was performed so that the film thickness was 0 mg / cm 2 . An arc tube was incorporated into this outer tube to produce a 100 W high-pressure mercury lamp. The luminous flux of the obtained lamp is 4840 m and the color temperature is 4
100K, average color rendering index Ra is 60, which is a clear improvement in the case of a 100W high-pressure mercury lamp that is a mixture of conventional red and blue-green phosphors, whose luminous flux is about 4800 m and Ra50. Was seen. This improvement is obtained by the effect of absorbing the short wavelength blue region possessed by the yellow-green phosphor used in addition to the blue phosphor and the blue-green phosphor.
第１図(a)，(b)に、この黄緑色螢光体（Y2.9Al5O12：Ce
0.1）の分光反射曲線および３６５nm励起による発光ス
ペクトルを示す。This yellow-green phosphor (Y 2.9 Al 5 O 12 : Ce is shown in Figs. 1 (a) and (b)).
A spectral reflection curve of 0.1 ) and an emission spectrum by excitation at 365 nm are shown.
従来、この螢光体（以下、一般式としてYAG：Ceと略記
する）を赤色螢光体とともに高圧水銀灯に用いて演色性
の改善を図った例がU.S.Patent 4,034,257,July 1977.
に示されているが、そのRaは５１程度であり、赤色螢光
体との組み合わせだけでは演色性の改善効果は小さいこ
とがわかる。発明者らは、高圧水銀灯の演色性改善に効
果が大きいとされている赤色域に加えて青緑色域にも発
光を加えることにより、上記YAG：Ceと組み合わせて大
幅な演色性の改善が得られることを見出したものであ
る。またYAG：Ceは黄緑色域に発光を示すため、短波長
青色域の吸収によるランプ効率の低下を補うことができ
ている。本実施例による１００Ｗ高圧水銀灯の分光分布
を第２図に示す。US Patent 4,034,257, July 1977.A conventional example in which this fluorescent material (hereinafter abbreviated as YAG: Ce as a general formula) is used together with a red fluorescent material in a high-pressure mercury lamp to improve color rendering properties.
, Ra is about 51, and it can be seen that the effect of improving the color rendering is small only by combining with the red phosphor. The inventors have obtained a significant improvement in color rendering properties in combination with the above YAG: Ce by adding light emission to the blue-green region in addition to the red region, which is said to be highly effective in improving the color rendering properties of high-pressure mercury lamps. It was found that they can be. Further, since YAG: Ce emits light in the yellow-green range, it is possible to compensate for the decrease in lamp efficiency due to absorption in the short-wavelength blue range. The spectral distribution of the 100 W high-pressure mercury lamp according to this example is shown in FIG.
実施例２ 実施例１と同じ螢光物質を同様にして４００Ｗ用外管内
面に塗布し、同様にして４００Ｗ螢光高圧水銀灯を作っ
た。得られたランプの光束は２５０００ｍ、色温度３
８００Ｋ、平均演色評価数Raは５８であり、従来の演色
改善形ランプのRaが５０程度であるのに比べて明らかに
改善された。Example 2 The same fluorescent substance as in Example 1 was applied to the inner surface of a 400 W outer tube in the same manner, and a 400 W fluorescent high pressure mercury lamp was produced in the same manner. The luminous flux of the obtained lamp is 25,000 m and the color temperature is 3
The color rendering index was 800K and the average color rendering index Ra was 58, which was clearly improved as compared with the Ra of the conventional color rendering improved lamp of about 50.
実施例３ 赤色螢光体にY0.95V0.5P0.5O4：Eu0.05を８５重量％，
青緑色螢光体にBa0.85Mg1.4Al14O24：Eu0.15Mn0.04を１
０重量％、黄緑色螢光体にYAG：Ceを５重量％の割合い
で混合し、それに１０重量％のエロジール（SiO2）を加
えて十分に混合した後、１００Ｗ高圧水銀灯の外管内面
に３mg/cm2の膜厚となるように静電塗布を行った。得ら
れたランプの光束は４５００ｍ，色温度３６２０Ｋ，
平均演色評価数Raは６１であった。Example 3 85% by weight of Y 0.95 V 0.5 P 0.5 O 4 : Eu 0.05 was added to the red phosphor,
Ba 0.85 Mg 1.4 Al 14 O 24 ： Eu 0.15 Mn 0.04 1 in a blue-green phosphor
0% by weight, YAG: Ce was mixed with a yellow-green fluorescent substance at a ratio of 5% by weight, and 10% by weight of erosile (SiO 2 ) was added and mixed sufficiently, and then, on the inner surface of the outer tube of a 100 W high pressure mercury lamp. Electrostatic coating was performed so that the film thickness was 3 mg / cm 2 . The luminous flux of the obtained lamp is 4500m, the color temperature is 3620K,
The average color rendering index Ra was 61.
実施例４ 赤色螢光体にY0.95VO4：Eu0.05を７０重量％，青緑色螢
光体にBa0.8Mg1.9Al16O27：Eu0.2Mn0.1を２５重量％，
黄緑色螢光体にYAG：Ceを５重量％の割合いで混合し、
それに５重量％のエロジール（SiO2）を加えて十分に混
合した後、１００Ｗ高圧水銀灯の外管内面に２mg/cm2の
膜厚となるように静電塗布を行った。得られたランプの
光束は４８４０ｍ、色温度は４２００Ｋ、平均演色評
価数Raは６２であった。Example 4 Y 0.95 VO 4 : Eu 0.05 70% by weight for a red phosphor, Ba 0.8 Mg 1.9 Al 16 O 27 : Eu 0.2 Mn 0.1 25% by weight for a blue-green phosphor,
YAG: Ce is mixed with the yellow-green phosphor at a ratio of 5% by weight,
After 5% by weight of erogel (SiO 2 ) was added and mixed sufficiently, electrostatic coating was performed on the inner surface of the outer tube of a 100 W high pressure mercury lamp to a film thickness of 2 mg / cm 2 . The luminous flux of the obtained lamp was 4,840 m, the color temperature was 4,200 K, and the average color rendering index Ra was 62.
発明の効果 以上説明したように、本発明は演色性を大幅に改善した
螢光高圧水銀灯に係り、その螢光体被膜を、３価のセリ
ウムで付活されたイットリウムアルミネート螢光体であ
る第１の螢光体と、２価のユーロピウム・マンガン付活
バリウム・マグネシウムアルミネート螢光体である第２
の螢光体と、３価のユーロピウム付活イットリウムバナ
デート発光体および３価のユーロピウム付活イットリウ
ム・バナデートフォスェート螢光体の少なくとも１種で
ある第３の螢光体とからなるように構成することによ
り、その発光管から放出される青色域の水銀輝線出力を
抑制し、黄緑色，青緑色および赤色域に螢光体による発
光を加えることによってその演色性を大幅に改善した螢
光高圧水銀灯を提供することができるものである。Effects of the Invention As described above, the present invention relates to a fluorescent high-pressure mercury lamp having a significantly improved color rendering property, and the fluorescent film is an yttrium aluminate fluorescent material activated with trivalent cerium. The first phosphor and the second divalent europium-manganese activated barium-magnesium aluminate phosphor
And a third phosphor which is at least one of a trivalent europium-activated yttrium vanadate phosphor and a trivalent europium-activated yttrium vanadate phosphate phosphor. By constructing the fluorescent lamp, the output of mercury emission lines in the blue region emitted from the arc tube is suppressed, and the color rendering property is greatly improved by adding light emission from the fluorescent substance to the yellow-green, blue-green and red regions. A high-pressure mercury lamp can be provided.
【図面の簡単な説明】 第１図(a)，(b)は黄緑色螢光体の分光反射曲線と発光ス
ペクトルを示す図、第２図は本発明の１００Ｗ螢光高圧
水銀灯の分光分布を示す図である。BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1 (a) and 1 (b) show the spectral reflection curve and emission spectrum of a yellow-green phosphor, and FIG. 2 shows the spectral distribution of a 100 W fluorescent high-pressure mercury lamp of the present invention. FIG.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｈ０１Ｊ 61/44 Ｃ 7135−5Ｅ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Office reference number FI technical display location H01J 61/44 C 7135-5E
Claims (1)
と、この発光管を囲む外管と、その外管の内面に被着形
成された螢光体被膜とを備える高圧水銀灯において、前
記螢光体被膜が３価のセリウムで付活されたイットリウ
ムアルミネート螢光体である第１の螢光体と、２価のユ
ーロピウム・マンガン付活バリウム・マグネシウムアル
ミネート螢光体である第２の螢光体と、３価のユーロピ
ウム付活イットリウムバナデート螢光体および３価のユ
ーロピウム付活イットリウムバナデートフォスフェート
螢光体の少なくとも１種である第３の螢光体とからなる
ことを特徴とする螢光高圧水銀灯。1. A high-pressure mercury lamp comprising an arc tube that emits visible radiation and ultraviolet radiation, an outer tube that surrounds the arc tube, and a phosphor coating that is formed on the inner surface of the outer tube. The first phosphor, which is a yttrium aluminate phosphor whose phosphor coating is activated by trivalent cerium, and the second, which is a divalent europium-manganese activated barium-magnesium aluminate phosphor. And a third phosphor which is at least one of a trivalent europium-activated yttrium vanadate phosphor and a trivalent europium-activated yttrium vanadate phosphate phosphor. A high-pressure fluorescent mercury lamp featuring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59191043A JPH0625358B2 (en) | 1984-09-12 | 1984-09-12 | Fluorescent high pressure mercury lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59191043A JPH0625358B2 (en) | 1984-09-12 | 1984-09-12 | Fluorescent high pressure mercury lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6168854A JPS6168854A (en) | 1986-04-09 |
| JPH0625358B2 true JPH0625358B2 (en) | 1994-04-06 |
Family
ID=16267934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59191043A Expired - Lifetime JPH0625358B2 (en) | 1984-09-12 | 1984-09-12 | Fluorescent high pressure mercury lamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0625358B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6471052A (en) * | 1987-09-09 | 1989-03-16 | Matsushita Electronics Corp | Fluorescent high-pressure mercury lamp |
| JPS6471053A (en) * | 1987-09-10 | 1989-03-16 | Matsushita Electronics Corp | Fluorescent high-pressure mercury lamp |
| JP2005079463A (en) * | 2003-09-02 | 2005-03-24 | Nec Tokin Corp | Laminated solid electrolytic capacitor and laminated transmission line element |
| JP2005244259A (en) * | 2005-05-23 | 2005-09-08 | Nichia Chem Ind Ltd | Light emitting diode |
| WO2008129489A2 (en) * | 2007-04-23 | 2008-10-30 | Philips Intellectual Property & Standards Gmbh | Fluorescent mercury vapor discharge lamp comprising trichromatic phosphor blend |
| JP2012099381A (en) * | 2010-11-04 | 2012-05-24 | Denki Kagaku Kogyo Kk | High intensity discharge lamp |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1144743A (en) * | 1979-06-21 | 1983-04-19 | Charles F. Chenot | Ce-doped yttrium aluminum garnet and devices incorporating same |
| JPS5670085A (en) * | 1979-11-09 | 1981-06-11 | Hitachi Ltd | Fluorescent lamp |
-
1984
- 1984-09-12 JP JP59191043A patent/JPH0625358B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6168854A (en) | 1986-04-09 |
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