JP2005146125A - Light-emitting member - Google Patents

Light-emitting member Download PDF

Info

Publication number
JP2005146125A
JP2005146125A JP2003386101A JP2003386101A JP2005146125A JP 2005146125 A JP2005146125 A JP 2005146125A JP 2003386101 A JP2003386101 A JP 2003386101A JP 2003386101 A JP2003386101 A JP 2003386101A JP 2005146125 A JP2005146125 A JP 2005146125A
Authority
JP
Japan
Prior art keywords
light
component
phosphorescent
substance
fluorescent
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
Application number
JP2003386101A
Other languages
Japanese (ja)
Inventor
Satoshi Nakajima
敏 中島
Masayuki Kitamura
正行 北村
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.)
Toho Kogyo Co Ltd
Institute of National Colleges of Technologies Japan
Original Assignee
Toho Kogyo Co Ltd
Institute of National Colleges of Technologies Japan
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 Toho Kogyo Co Ltd, Institute of National Colleges of Technologies Japan filed Critical Toho Kogyo Co Ltd
Priority to JP2003386101A priority Critical patent/JP2005146125A/en
Publication of JP2005146125A publication Critical patent/JP2005146125A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Road Signs Or Road Markings (AREA)
  • Luminescent Compositions (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a light-emitting member which makes use of a luminous substance and which is contrived to improve the luminance of the light emission and to diversify the colors of the light emission. <P>SOLUTION: The light-emitting member 1 contains a luminous substance 3 which absorbs an exciting light component in the first wave length region and then irradiates a phosphorescent component in the second wave length region, and a fluorescent substance 4 which receives the fluorescent component irradiated from the above luminous substance 3 and then emits the fluorescent component having a wave length longer than that of the fluorescent component, with the luminous substance and the fluorescent substance being united with a transparent material 2 comprising a synthetic resin such as an acrylic resin, epoxy resin, polystyrene, polyethylene, polyethylene terephthalate, polymethacrylate or a transparent ABS resin or polycarbonate, or comprising a transparent ceramic such as glass or the like. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、道路標識や看板などの夜間照明として好適に用いられる発光部材に係わり、特に輝度が高く様々な発光色を得ることのできる蓄光性物質を利用した発光部材に関するものである。   The present invention relates to a light-emitting member that is suitably used for night illumination such as road signs and signboards, and more particularly to a light-emitting member that uses a luminous substance that has high luminance and can obtain various emission colors.

従来、ルミネセンスを発する物質として、フルオレセインなどの蛍光体が一般に良く知られる。然し、係る蛍光体は紫外線や可視光などによる刺激を受けているときだけしか発光せず、その残光時間（発光寿命）は１０-9〜１０-3Ｓと短い。これに対し、励起光を取り去った後も長きに亙って発光するものは燐光体または蓄光性蛍光体といって蛍光体とは区別される。 Conventionally, phosphors such as fluorescein are generally well known as substances that emit luminescence. However, such a phosphor emits light only when stimulated by ultraviolet rays or visible light, and its afterglow time (light emission lifetime) is as short as 10 −9 to 10 −3 S. On the other hand, what emits light for a long time after the excitation light is removed is distinguished from a phosphor as a phosphor or a phosphorescent phosphor.

係る燐光体または蓄光性蛍光体（以下、蓄光性物質という）は、酸化物系と硫化物系とに大別されるが、それらの残光時間は１０-3Ｓ以上であり、種類によっては残光時間が数時間〜１日程度にも及ぶものがある。然し、硫化亜鉛（ＺnＳ）に代表される硫化物系の蓄光性物質は、賦活剤として混合する元素の種類と量によって発光強度や発光色を変えることができるものの、その多くは輝度が低く残光時間も比較的短い。又、ＳrＡl2Ｏ4など酸化物系の蓄光性物質は輝度が高く残光時間も硫化物系に比べて長いが、得られる発光色は現状で緑や青などに限られている。 Such phosphors or phosphorescent phosphors (hereinafter referred to as phosphorescent substances) are roughly classified into oxides and sulfides, but their afterglow time is 10 −3 S or more, and depending on the type Some afterglow times range from several hours to about a day. However, although sulfide-based phosphorescent substances represented by zinc sulfide (ZnS) can change the emission intensity and emission color depending on the type and amount of elements mixed as an activator, many of them have low luminance and remain. Light time is also relatively short. In addition, an oxide-based phosphorescent material such as SrAl 2 O 4 has a high luminance and a long afterglow time compared to a sulfide-based material, but the emission color obtained is currently limited to green and blue.

ここに、以上のような蓄光性物質を利用した従来例として、カラー顔料などを含ませた塗料原液に蓄光性物質（蓄光剤）を混合したカラー蓄光塗料が知られる（特許文献１）。   Here, as a conventional example using such a phosphorescent substance, a color phosphorescent paint in which a phosphorescent substance (phosphorescent agent) is mixed with a coating stock solution containing a color pigment or the like is known (Patent Document 1).

又、紫外線硬化型アクリルホットメルトなどの粘着剤と、蓄光性物質（蓄光剤）及び色素とを混合した板状の蓄光物が知られる（特許文献２）。   Also known is a plate-shaped phosphorescent material obtained by mixing an adhesive such as an ultraviolet curable acrylic hot melt, a phosphorescent substance (phosphorescent agent), and a pigment (Patent Document 2).

特開２００２−１２９１０９号公報JP 2002-129109 A

特開２００１−２９６８０４号公報JP 2001-296804 A

然し乍ら、特許文献１のカラー顔料は合成樹脂を着色するもの（インキ）、特許文献２の色素は粘着剤を着色するものであり、何れもそれ自体が発光するものでなく、特許文献１ではカラー顔料で着色された合成樹脂（顔料合成樹脂）に蓄光剤の放射光を照射し、特許文献２では色素により着色された粘着剤に蓄光剤の放射光を照射するようにしているに過ぎない。よって、特許文献１、２では暗所における蓄光剤の発光により全体をカラー顔料および色素の色調で光らせることができるものの、カラー顔料、色素はそれ自体が発光しないので、その混合量を増やすと蓄光剤の光が遮蔽されて発光強度が大きく低下するという問題がある。   However, the color pigment of Patent Document 1 is for coloring a synthetic resin (ink), and the colorant of Patent Document 2 is for coloring an adhesive. The synthetic resin colored with the pigment (pigment synthetic resin) is irradiated with the radiant light of the phosphorescent agent, and Patent Document 2 merely irradiates the adhesive colored with the pigment with the radiant light of the phosphorescent agent. Therefore, in Patent Documents 1 and 2, although the whole can be made to emit light with the color tone of the color pigment and the dye by light emission of the phosphorescent agent in the dark place, the color pigment and the dye themselves do not emit light. There is a problem that the light of the agent is shielded and the emission intensity is greatly reduced.

本発明は以上のような事情に鑑みて成されたものであり、その目的は蓄光性物質を利用した発光部材にして、発光輝度の向上と発光色の多様化を図ることにある。   The present invention has been made in view of the circumstances as described above, and an object of the present invention is to improve the light emission luminance and diversify the light emission colors by using a light-emitting member using a phosphorescent substance.

上記目的を達成するため、本発明は第１波長領域の励起光成分を吸収して第２波長領域の燐光成分を放射する蓄光性物質と、該蓄光性物質から放射された燐光成分を受けてそれより長波長の蛍光成分を発する蛍光性物質とを含んで構成される発光部材を提供する。   In order to achieve the above object, the present invention receives a phosphorescent material that absorbs an excitation light component in a first wavelength region and emits a phosphorescence component in a second wavelength region, and a phosphorescence component emitted from the phosphorescent material. There is provided a light emitting member comprising a fluorescent substance that emits a fluorescent component having a longer wavelength.

つまり、本発明の発光部材は発光源としての蓄光性物質と、その放射光（燐光成分）による刺激により励起して燐光成分が照射されている間だけ特定の色の蛍光成分を発する蛍光性物質とを組み合わせることを特徴とするものであり、組み合わる物質としては例えばＳrＡl2Ｏ4（蓄光性物質）に対して、ローダミン（蛍光性物質）などが挙げられる。 That is, the light-emitting member of the present invention is a phosphorescent substance that emits a specific color fluorescent component while being excited by stimulation with the emitted light (phosphorescent component) and irradiated with the phosphorescent component. As a substance to be combined, for example, rhodamine (fluorescent substance) and the like can be mentioned with respect to SrAl 2 O 4 (phosphorescent substance).

又、本発明は以上のような発光部材において、蓄光性物質と蛍光性物質をアクリル樹脂、エポキシ樹脂、ポリスチレン、ポリエチレン、ポリエチレンテレフタレート、ポリメタクリレート、透明ＡＢＳ樹脂、又はポリカーボネートなどの合成樹脂、若しくはガラスなどの透明セラミックから成る透明材料により一体化したことを特徴とする。   In the light emitting member as described above, the phosphorescent substance and the fluorescent substance are made of a synthetic resin such as acrylic resin, epoxy resin, polystyrene, polyethylene, polyethylene terephthalate, polymethacrylate, transparent ABS resin, or polycarbonate, or glass. It is characterized by being integrated by a transparent material made of a transparent ceramic.

本発明に係る発光部材によれば、第１波長領域の励起光成分を吸収して第２波長領域の燐光成分を放射する蓄光性物質と、該蓄光性物質から放射された燐光成分を受けてそれより長波長の蛍光成分を発する蛍光性物質とを含んで構成されることから、発光色が限られた蓄光性物質でも蛍光性物質により全体を様々な色調で発光させることができ、しかも蓄光性物質から放射される燐光成分を受けて蛍光性物質が固有の色で発光するので全体を大きな輝度で発光させることができる。   The light emitting member according to the present invention receives a phosphorescent material that absorbs an excitation light component in the first wavelength region and emits a phosphorescence component in the second wavelength region, and a phosphorescent component emitted from the phosphorescent material. Since it is composed of a fluorescent substance that emits a fluorescent component having a longer wavelength, even a phosphorescent substance with a limited emission color can be made to emit light in various colors with the fluorescent substance. In response to the phosphorescent component emitted from the fluorescent substance, the fluorescent substance emits light with a unique color, so that the whole can emit light with high luminance.

又、蓄光性物質と蛍光性物質を透明材料により一体化していることから、内部で発生した光を外部に効率よく放出できる上、標識などに貼り付けて表示文字などを昼夜を問わずに視認することができる。   In addition, since the phosphorescent substance and the fluorescent substance are integrated with a transparent material, the light generated inside can be efficiently emitted to the outside, and the display characters can be visually recognized regardless of day or night by attaching it to a sign. can do.

以下、本発明を図面に基づいて詳しく説明する。図１は係る発光部材を板状とした例であり、この発光部材１は透明材料２により蓄光性物質３と蛍光性物質４とを一体化して成る。透明材料２は熱可塑性または熱硬化性の合成樹脂、若しくはガラスをはじめとする透明セラミックであり、合成樹脂としてはアクリル樹脂、エポキシ樹脂、ポリスチレン、ポリエチレン、ポリエチレンテレフタレート、ポリメタクリレート、透明ＡＢＳ樹脂、又はポリカーボネートなどが選ばれる。   Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 shows an example in which such a light emitting member is formed in a plate shape. The light emitting member 1 is formed by integrating a phosphorescent substance 3 and a fluorescent substance 4 with a transparent material 2. The transparent material 2 is a thermoplastic or thermosetting synthetic resin, or a transparent ceramic such as glass. As the synthetic resin, acrylic resin, epoxy resin, polystyrene, polyethylene, polyethylene terephthalate, polymethacrylate, transparent ABS resin, or Polycarbonate or the like is selected.

一方、蓄光性物質３は、太陽光や人工光などに含まれる紫外線や可視光といった所定の波長領域（第１波長領域）の励起光成分を吸収して、その励起光成分の照射後も所定の時間に亙って励起光成分より長波長である第２波長領域の燐光成分を放射するものであり、これには亜鉛、カドミウム、カルシウム、アルミニウム、イットリウムなどの金属酸化物、硫化物、珪酸塩、タングステン酸塩などの無機結晶（単結晶あるいは粉末）、好ましくは発光輝度、残光時間の点から酸化物系ないしは酸素酸塩系が好適に用いられ、必要に応じてマンガン、銀、銅、鉛、ビスマス、セリウム、ネオジム、サマリウム、ユウロピウム、ジスプロシウム、テルビウム、ツリウム、イッテルビウムなどの不純物（賦活剤）が加えられる。係る蓄光性物質の例を以下に示す（括弧内は賦活剤、発光色であり、元素記号のないものは賦活剤を含まない純粋形）。   On the other hand, the phosphorescent substance 3 absorbs an excitation light component in a predetermined wavelength region (first wavelength region) such as ultraviolet light and visible light contained in sunlight, artificial light, and the like, and also after irradiation of the excitation light component. The phosphorescence component in the second wavelength region, which is longer than the excitation light component, is emitted over a period of time, including metal oxides such as zinc, cadmium, calcium, aluminum, and yttrium, sulfides, and silicic acid. Inorganic crystals (single crystals or powders) such as salts and tungstates, preferably oxides or oxyacids are preferably used in terms of light emission luminance and afterglow time, and manganese, silver, copper as required Impurities (activators) such as lead, bismuth, cerium, neodymium, samarium, europium, dysprosium, terbium, thulium, ytterbium are added. Examples of such phosphorescent substances are shown below (in parentheses are activators and luminescent colors, and those without element symbols are pure forms that do not contain activators).

先ず、酸化物系あるいは酸素酸塩系の蓄光性物質としては、ＺnＯ(Ｚn，白緑)、ＳrＡl2Ｏ4(緑)、Ｓr4Ａl14Ｏ25(青)、ＣaＷＯ4(青緑)、ＭgＷＯ4(青)、ＺnＳiＯ4(Ｍn，緑)などが挙げられ、硫化物系の蓄光性物質としては、ＣaＳ(Ｂi，紫)、ＺnＳ(Ａg：Ｃl，青)、ＺnＳ(Ｃu：Ａl，緑)、ＺnＳ(Ｍn，橙)、ＺnＳ(Ｃu、黄緑)などが挙げられる。特に、ストロンチウム又はカルシウムとアルミニウムを主要な構成材とするＳrＡl2Ｏ4（緑）、Ｓr4Ａl14Ｏ25(青)、ＣaＡl2Ｏ4(紫)、又はそれらにユウロピウム、ジスプロシウムなどの賦活剤を加えたものは発光輝度、残光時間の点で有用であり、これらは励起光成分の照射後も数時間〜２０時間以上に亙って燐光成分を放射することができる。 First, as oxide-based or oxyacid-based phosphorescent substances, ZnO (Zn, white green), SrAl 2 O 4 (green), Sr 4 Al 14 O 25 (blue), CaWO 4 (blue green), MgWO 4 (blue), ZnSiO 4 (Mn, green), and the like, and sulfide-based phosphorescent materials include CaS (Bi, purple), ZnS (Ag: Cl, blue), ZnS (Cu: Al, Green), ZnS (Mn, orange), ZnS (Cu, yellowish green) and the like. In particular, SrAl 2 O 4 (green), Sr 4 Al 14 O 25 (blue), CaAl 2 O 4 (purple) containing strontium or calcium and aluminum as main constituents, or activators such as europium and dysprosium Are useful in terms of emission luminance and afterglow time, and these can emit phosphorescent components for several hours to 20 hours or more after irradiation with excitation light components.

又、蛍光性物質４は所定波長領域の光成分を選択的に吸収して、それより長波長の蛍光成分（可視光）を発するものであり、これにはクマリン、フルオレセイン、ローダミン、アクリフラビン、ヨウ化3，3′-ジエチルトリカルボシアニン、クロロアルミニウムフタロシアニンなどの有機系色素が好適に用いられ、そのほかカナリーガラス、ストロンチウムや多種の希土類元素を含む蛍石(ＣaＦ2)など各種の不純物を含む結晶蛍光体を用いることもできる。 The fluorescent substance 4 selectively absorbs a light component in a predetermined wavelength region and emits a longer wavelength fluorescent component (visible light), including coumarin, fluorescein, rhodamine, acriflavine, Organic dyes such as 3,3'-diethyltricarbocyanine iodide and chloroaluminum phthalocyanine are preferably used. In addition, it contains various impurities such as canary glass, strontium and fluorite containing various rare earth elements (CaF 2 ). A crystalline phosphor can also be used.

但し、係る蛍光性物質４は上記のものから任意に選択するのでなく、蛍光成分を発するに必要な励起光の波長領域が蓄光性物質３より放射される燐光成分の波長領域（第２波長領域）と同等ないしは近似するもの、つまり燐光成分を選択的に吸収して蛍光成分を発するものが選ばれる。特に、蛍光性物質４は、蓄光性物質３より放射される燐光成分のピーク波長をλmaxとして、蛍光に係る励起光のピーク波長が０．９５λmax〜１．０５λmax程度のものが好適に用いられる。例えば、燐光成分の波長領域が４５０〜５５０nmで、そのピーク波長が５００nmであるとき、蛍光性物質としては蛍光成分を発する励起光のピーク波長が４７５〜５２５nmのものが好適に用いられる。   However, the fluorescent material 4 is not arbitrarily selected from the above, but the wavelength region of the excitation light necessary for emitting the fluorescent component is the wavelength region of the phosphorescent component emitted from the phosphorescent material 3 (second wavelength region). ) Which is equivalent to or close to (i.e., a phosphorescent component and selectively emits a fluorescent component) is selected. In particular, the fluorescent material 4 is preferably used in which the peak wavelength of the phosphorescent component emitted from the phosphorescent material 3 is λmax and the peak wavelength of the excitation light related to fluorescence is about 0.95λmax to 1.05λmax. For example, when the phosphorescent component has a wavelength region of 450 to 550 nm and a peak wavelength of 500 nm, a fluorescent substance having a peak wavelength of excitation light emitting a fluorescent component of 475 to 525 nm is preferably used.

以下、係る蛍光性物質の具体名、並びにその励起光および出力光としての蛍光成分のピーク波長を例示する（括弧内はＣＡＳ Ｎo、吸収ピーク波長、出力ピーク波長）。   Hereinafter, specific names of such fluorescent substances, and peak wavelengths of fluorescent components as excitation light and output light thereof are exemplified (CAS No, absorption peak wavelength, output peak wavelength in parentheses).

POPOP（1806-34-4，358nm，415nm）、Coumarin120（26093-31-2，352nm，428nm）、Coumarin2（26078-25-1，365nm，435nm）、Coumarin339（62669-73-2，377nm，447nm）、Coumarin1（91-44-1，374nm，450nm）、Coumarin138（62669-74-3，365nm，447nm）、Coumarin106（41175-45-5，380nm，466nm）、Coumarin102（41267-76-9，390nm，468nm）、Coumarin314T（113869-06-0，435nm，478nm）、Coumarin338（62669-75-4，434nm，478nm）、Coumarin151（53518-15-3，377nm，479nm）、Coumarin4（90-33-5，322nm，386nm）、Coumarin314（55804-66-5，437nm，478nm）、Coumarin30（41044-12-6，413nm，478nm）、Coumarin500（52840-38-7，395nm，499nm）、Coumarin307（55804-70-1，395nm，488nm）、Coumarin334（55804-67-6，452nm，491nm）、Coumarin7（27425-55-4，437nm，488nm）、Coumarin343（55804-65-4，409nm，470nm）、Coumarin337（55804-68-7，443nm，488nm）、Coumarin6（38215-36-0，458nm，497nm）、HPTS（6358-69-6，455nm，510nm）、Coumarin152（53518-14-2，394nm，496nm）、Coumarin153（53518-18-6，423nm，532nm）、Fluorescein（2321-07-5，498nm，518nm）、Rhodamine110（13558-31-1，498nm，520nm）、2′,7′-DichloroFluorescein（76-54-0，512nm，526nm）、Rhodamine6G Tetrafluoroborate（54854-14-7，528nm，547nm）、Rhodamine6G Perchlorate（13161-28-9，528nm，547nm）、Rhodamine19 Perchlorate（62669-66-3，520nm，551nm）、Rhodamine6G（989-38-8，528nm，555nm）、RhodamineB（81-88-9，545nm，565nm）、Sulforhodamine（2609-88-3，556nm，572nm）、Rhodamine101 Inter Salt（41175-43-3，567nm，588nm）、Cresyl Violet Perchlorate（41830-80-2，593nm，615nm）、DODC Iodide（14806-50-9，578nm，605nm）、Oxazine4 Perchlorate（41830-81-3，610nm，625nm）、DCM（51325-91-8，480nm，627nm）、Oxazine170 Perchlorate（62669-60-7，620nm，637nm）、Nile Blue A Perchlorate（53340-16-2，627nm，660nm）、Oxazine1 Perchlorate（24796-94-9，643nm，658nm）、Pyridine1（87004-02-2，534nm，669nm）、HIDC Iodine（36536-22-8，646nm，666nm）、DOTC Iodide（15185-43-0，695nm，719nm）。   POPOP (1806-34-4, 358nm, 415nm), Coumarin120 (26093-31-2, 352nm, 428nm), Coumarin2 (26078-25-1, 365nm, 435nm), Coumarin339 (62669-73-2, 377nm, 447nm) ), Coumarin1 (91-44-1, 374nm, 450nm), Coumarin138 (62669-74-3, 365nm, 447nm), Coumarin106 (41175-45-5, 380nm, 466nm), Coumarin102 (41267-76-9, 390nm) , 468nm), Coumarin314T (113869-06-0, 435nm, 478nm), Coumarin338 (62669-75-4, 434nm, 478nm), Coumarin151 (53518-15-3, 377nm, 479nm), Coumarin4 (90-33-5) , 322nm, 386nm), Coumarin314 (55804-66-5, 437nm, 478nm), Coumarin30 (41044-12-6, 413nm, 478nm), Coumarin500 (52840-38-7, 395nm, 499nm), Coumarin307 (55804-70) -1,395nm, 488nm), Coumarin334 (55804-67-6, 452nm, 491nm), Coumarin7 (27425-55-4, 437nm, 488nm), Coumarin343 (55804-65-4, 409nm, 470nm), Coumarin337 (55804) -68-7, 443nm, 488nm), Coumarin6 (38215-36-0, 458nm, 497nm), HPTS (6358-69-6, 455nm, 510nm), Coumarin152 (5351) 8-14-2, 394 nm, 496 nm), Coumarin 153 (53518-18-6, 423 nm, 532 nm), Fluorescein (2321-07-5, 498 nm, 518 nm), Rhodamine 110 (13558-31-1, 498 nm, 520 nm), 2 ', 7'-DichloroFluorescein (76-54-0, 512nm, 526nm), Rhodamine6G Tetrafluoroborate (54854-14-7, 528nm, 547nm), Rhodamine6G Perchlorate (13161-28-9, 528nm, 547nm), Rhodamine19 Perchlorate ( 62669-66-3, 520 nm, 551 nm), Rhodamine 6G (989-38-8, 528 nm, 555 nm), Rhodamine B (81-88-9, 545 nm, 565 nm), Sulforhodamine (2609-88-3, 556 nm, 572 nm), Rhodamine101 Inter Salt (41175-43-3, 567nm, 588nm), Cresyl Violet Perchlorate (41830-80-2, 593nm, 615nm), DODC Iodide (14806-50-9, 578nm, 605nm), Oxazine4 Perchlorate (41830-81) -3, 610nm, 625nm), DCM (51325-91-8, 480nm, 627nm), Oxazine170 Perchlorate (62669-60-7, 620nm, 637nm), Nile Blue A Perchlorate (53340-16-2, 627nm, 660nm) , Oxazine1 Perchlorate (24796-94-9, 643nm, 658nm), Pyridine1 (87004-02-2, 534nm 669nm), HIDC Iodine (36536-22-8,646nm, 666nm), DOTC Iodide (15185-43-0,695nm, 719nm).

尚、蓄光性物質３と蛍光性物質４の混合比は双方の発光強度などにより異なるが、体積比で概ね２：８〜８：２程度に設定される。   The mixing ratio of the phosphorescent substance 3 and the fluorescent substance 4 varies depending on the light emission intensity of both, but is set to about 2: 8 to 8: 2 in volume ratio.

次に、図２は係る発光部材の使用例を示す。図２において、５は地上に立てられる支柱、６は支柱の上部に取り付けられる基板であり、この基板６には係る発光部材１が接着剤やボルトといった固定手段により固定される。尚、本例において基板６は道路標識として発光部材１の取付面に種々の記号や地名などが記される。   Next, FIG. 2 shows an example of use of such a light emitting member. In FIG. 2, reference numeral 5 denotes a column that stands on the ground, and reference numeral 6 denotes a substrate that is attached to the top of the column. The light emitting member 1 is fixed to the substrate 6 by a fixing means such as an adhesive or a bolt. In this example, the substrate 6 is marked with various symbols and place names on the mounting surface of the light emitting member 1 as a road sign.

そして、係る発光部材１によれば、蓄光性物質が日中の太陽光に含まれる紫外光など第１波長領域の励起光成分を選択的に吸収し、日没後も吸収した励起光より長波長である第２波長領域の燐光成分を放射し続ける。すると、蛍光性物質がその燐光成分を受けて励起し、ストークス則によりそれより長波長である可視光領域の蛍光成分を発する。この結果、発光部材１の全面が蛍光成分の光色、あるいは燐光成分と蛍光成分との合成光色で発光し、その光により基板６の表示が夜間においても視認可能となる。   And according to the light emitting member 1, the phosphorescent substance selectively absorbs the excitation light component in the first wavelength region such as ultraviolet light contained in sunlight during the day and has a longer wavelength than the excitation light absorbed after sunset. The phosphorescent component in the second wavelength region is continuously emitted. Then, the fluorescent material receives and excites the phosphorescent component, and emits a fluorescent component in the visible light region having a longer wavelength according to Stokes' law. As a result, the entire surface of the light emitting member 1 emits light of a fluorescent component or a combined light color of a phosphorescent component and a fluorescent component, and the display of the substrate 6 can be visually recognized by the light.

尚、本発明に係る発光部材は上記のように道路標識の照明としてだけでなく、看板照明として用いたり、又は室内の天上や壁面に貼り付けて停電時における非常灯として用いることもできる。更に、これを種々の形状に成形して例えば携帯電話のブッシュボタンとしたり、室内の置物としたりすることもできる。   In addition, the light emitting member according to the present invention can be used not only as illumination of a road sign as described above but also as signboard illumination, or attached to a ceiling or a wall surface in a room and used as an emergency light during a power failure. Further, it can be formed into various shapes to form, for example, a cellular phone bush button or an indoor ornament.

液状で透明な合成樹脂に蓄光性物質と蛍光性物質とを加えて混合した後、合成樹脂を硬化させて板状の固形物とした。尚、蓄光性物質にはＳrＡl2Ｏ4を用いた。その励起光成分は図３のように概ね２００〜４５０nmの波長領域であり、燐光成分は概ね４５０〜６５０nmの波長領域でピーク波長は５２２nmである。又、蛍光性物質には燐光成分のピーク波長５２２nmに対応してローダミン（Rhodamine19 Perchlorate）を選択した。この蛍光性物質は図４に示すように概ね４５０〜５５０nm（ピーク波長５２０nm）の光成分を吸収して、５２０〜６５０nm（ピーク波長５５１nm）の蛍光成分を発するものである。そして、以上のような蓄光性物質と蛍光性物質を一体として含んだ板状の固形物にブラックライト（紫外線）を一定時間照射し、その後その固形物を暗所で観察したところ緑色〜黄緑色の発光が確認された。 A phosphorescent substance and a fluorescent substance were added to and mixed with a liquid transparent synthetic resin, and then the synthetic resin was cured to obtain a plate-like solid. Note that SrAl 2 O 4 was used as the phosphorescent substance. The excitation light component has a wavelength region of approximately 200 to 450 nm as shown in FIG. 3, and the phosphorescence component has a wavelength region of approximately 450 to 650 nm and a peak wavelength of 522 nm. For the fluorescent material, rhodamine (Rhodamine 19 Perchlorate) was selected corresponding to the peak wavelength of 522 nm of the phosphorescent component. As shown in FIG. 4, this fluorescent substance absorbs a light component of approximately 450 to 550 nm (peak wavelength 520 nm) and emits a fluorescence component of 520 to 650 nm (peak wavelength 551 nm). Then, black light (ultraviolet light) is irradiated for a certain period of time on a plate-like solid material containing the phosphorescent material and the fluorescent material as a whole, and then the solid material is observed in a dark place. The emission of was confirmed.

液状で透明な合成樹脂に蓄光性物質と蛍光性物質とを加えて混合した後、合成樹脂を硬化させて板状の固形物とした。尚、蓄光性物質にはＳrＡl2Ｏ4・(3/4)Ａl2Ｏ3を用いた。その励起光成分は図５のように概ね２００〜４５０nmの波長領域であり、燐光成分は概ね４３０〜６００nmの波長領域でピーク波長は４９３nmである。又、蛍光性物質には燐光成分のピーク波長４９３nmに対応してピリジン１（Pyridine1）を選択した。この蛍光性物質は図６に示すように概ね４００〜６２０nm（ピーク波長５３４nm）の光成分を吸収して、６００〜８００nm（ピーク波長６６９nm）の蛍光成分を発するものである。そして、以上のような蓄光性物質と蛍光性物質を一体として含んだ板状の固形物にブラックライト（紫外線）を一定時間照射し、その後その固形物を暗所で観察したところ橙色〜赤色の発光が確認された。 A phosphorescent substance and a fluorescent substance were added to and mixed with a liquid transparent synthetic resin, and then the synthetic resin was cured to obtain a plate-like solid. SrAl 2 O 4 · (3/4) Al 2 O 3 was used as the phosphorescent substance. As shown in FIG. 5, the excitation light component has a wavelength region of approximately 200 to 450 nm, and the phosphorescence component has a wavelength region of approximately 430 to 600 nm and a peak wavelength of 493 nm. As the fluorescent material, pyridine 1 (Pyridine 1) was selected corresponding to the peak wavelength of 493 nm of the phosphorescent component. As shown in FIG. 6, this fluorescent substance absorbs a light component of approximately 400 to 620 nm (peak wavelength 534 nm) and emits a fluorescence component of 600 to 800 nm (peak wavelength 669 nm). Then, a black solid (ultraviolet light) is irradiated for a certain period of time on a plate-like solid material containing the phosphorescent material and the fluorescent material as a whole, and the solid material is observed in a dark place. Luminescence was confirmed.

本発明に係る発光部材の構造を示した断面概略図Schematic cross-sectional view showing the structure of a light-emitting member according to the present invention 同発光部材の使用例を示す説明図Explanatory drawing which shows the usage example of the light emitting member 蓄光性物質に係る波長分布を示すグラフGraph showing wavelength distribution of phosphorescent substances 蛍光性物質に係る波長分布を示すグラフGraph showing the wavelength distribution of fluorescent substances 蓄光性物質に係る波長分布を示すグラフGraph showing wavelength distribution of phosphorescent substances 蛍光性物質に係る波長分布を示すグラフGraph showing the wavelength distribution of fluorescent substances

符号の説明Explanation of symbols

１ 発光部材
２ 透明材料
３ 蓄光性物質
４ 蛍光性物質
DESCRIPTION OF SYMBOLS 1 Light emitting member 2 Transparent material 3 Luminescent substance 4 Fluorescent substance

Claims (3)

第１波長領域の励起光成分を吸収して第２波長領域の燐光成分を放射する蓄光性物質と、該蓄光性物質から放射された燐光成分を受けてそれより長波長の蛍光成分を発する蛍光性物質とを含んで構成される発光部材。   A phosphorescent material that absorbs an excitation light component in the first wavelength region and emits a phosphorescence component in the second wavelength region, and a fluorescence that receives the phosphorescence component emitted from the phosphorescent material and emits a fluorescent component having a longer wavelength than that. A light emitting member comprising a sexual substance. 蓄光性物質と蛍光性物質を透明材料により一体化した請求項１記載の発光部材。   The light emitting member according to claim 1, wherein the phosphorescent substance and the fluorescent substance are integrated by a transparent material. 透明材料がアクリル樹脂、エポキシ樹脂、ポリスチレン、ポリエチレン、ポリエチレンテレフタレート、ポリメタクリレート、透明ＡＢＳ樹脂、又はポリカーボネートなどの合成樹脂、若しくはガラスなどの透明セラミックである請求項２記載の発光部材。
The light emitting member according to claim 2, wherein the transparent material is an acrylic resin, an epoxy resin, polystyrene, polyethylene, polyethylene terephthalate, polymethacrylate, a transparent ABS resin, a synthetic resin such as polycarbonate, or a transparent ceramic such as glass.
JP2003386101A 2003-11-17 2003-11-17 Light-emitting member Pending JP2005146125A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003386101A JP2005146125A (en) 2003-11-17 2003-11-17 Light-emitting member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003386101A JP2005146125A (en) 2003-11-17 2003-11-17 Light-emitting member

Publications (1)

Publication Number Publication Date
JP2005146125A true JP2005146125A (en) 2005-06-09

Family

ID=34693873

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003386101A Pending JP2005146125A (en) 2003-11-17 2003-11-17 Light-emitting member

Country Status (1)

Country Link
JP (1) JP2005146125A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006328209A (en) * 2005-05-26 2006-12-07 Nagoya City Luminous agent-containing resin composition
WO2008149442A1 (en) * 2007-06-07 2008-12-11 Itakura, Masako Long-afterglow phosphor and long-afterglow phosphorescent substance
WO2009066459A1 (en) * 2007-11-23 2009-05-28 Michael Japan Co., Ltd. Braille member and guide block
JP2010007085A (en) * 2005-08-23 2010-01-14 Samsung Electro Mech Co Ltd Composite phosphor powder, light emitting device using the same, and method of manufacturing composite phosphor powder
JP2016027068A (en) * 2013-11-15 2016-02-18 三菱エンジニアリングプラスチックス株式会社 Phosphorescent transparent resin composition and molded article of the same
JP2016027067A (en) * 2013-11-15 2016-02-18 三菱エンジニアリングプラスチックス株式会社 Phosphorescent transparent resin composition and molded article of the same
JP2019192366A (en) * 2018-04-19 2019-10-31 デンカ株式会社 Light emission sign plate using led
JP2019214635A (en) * 2018-06-11 2019-12-19 株式会社エヌ・アイ・シー Luminous pigment composition
CN115849714A (en) * 2022-12-20 2023-03-28 福建省德化万顺捷陶瓷有限公司 Glaze for noctilucent artware and production method of artware

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006328209A (en) * 2005-05-26 2006-12-07 Nagoya City Luminous agent-containing resin composition
JP2010007085A (en) * 2005-08-23 2010-01-14 Samsung Electro Mech Co Ltd Composite phosphor powder, light emitting device using the same, and method of manufacturing composite phosphor powder
WO2008149442A1 (en) * 2007-06-07 2008-12-11 Itakura, Masako Long-afterglow phosphor and long-afterglow phosphorescent substance
WO2009066459A1 (en) * 2007-11-23 2009-05-28 Michael Japan Co., Ltd. Braille member and guide block
JP2009127302A (en) * 2007-11-23 2009-06-11 Michael Japan Co Ltd Braille member and guide block
JP2016027068A (en) * 2013-11-15 2016-02-18 三菱エンジニアリングプラスチックス株式会社 Phosphorescent transparent resin composition and molded article of the same
JP2016027067A (en) * 2013-11-15 2016-02-18 三菱エンジニアリングプラスチックス株式会社 Phosphorescent transparent resin composition and molded article of the same
JP2019192366A (en) * 2018-04-19 2019-10-31 デンカ株式会社 Light emission sign plate using led
JP7242192B2 (en) 2018-04-19 2023-03-20 デンカ株式会社 Light-emitting sign board using LED
JP2019214635A (en) * 2018-06-11 2019-12-19 株式会社エヌ・アイ・シー Luminous pigment composition
CN115849714A (en) * 2022-12-20 2023-03-28 福建省德化万顺捷陶瓷有限公司 Glaze for noctilucent artware and production method of artware

Similar Documents

Publication Publication Date Title
US8952341B2 (en) Low rare earth mineral photoluminescent compositions and structures for generating long-persistent luminescence
CN100386888C (en) Light emitting element and light emitting device using this
CN101617022B (en) Luminous phosphor, fluorescent lamp, luminous display, and luminous molded product
CN102051176A (en) Fluorescent material, manufacture method thereof and light-emitting device comprising fluorescent material
KR102671144B1 (en) Green phosphors and their devices
CN104968763B (en) Terres rares aluminium garnet type inorganic oxide, fluorophor and employ the light-emitting device of this fluorophor
JP2005146125A (en) Light-emitting member
CN104968256A (en) A light source, luminaire and surgical illumination unit
JP5568839B2 (en) Luminescent phosphor, fluorescent lamp, luminous display, and luminous molded product
Wang et al. Research advances on human-eye-sensitive long persistent luminescence materials
WO2011117791A1 (en) Led-based lighting device comprising a plurality of luminescent materials
WO2015029284A1 (en) Phosphor and light-emitting device using same
Sato et al. Properties of full-color fluorescent display devices excited by a UV light-emitting diode
JP3185348U (en) Display material for watches
CN1948427A (en) Red light fluorescent powder
JP2003224304A (en) Light-emitting device
JP3257947B2 (en) Phosphorescent phosphor
JP4433793B2 (en) Phosphor and light emitting device using the same
CN101144013B (en) Luminescent material, LED, lamp and luminescent device
JP2009249396A (en) Luminous white light emitting phosphor, fluorescent lamp, luminous display, and luminous molded product
JP2002188084A (en) Red light-emitting phosphor and light-emitting apparatus using the same
JPWO2014033951A1 (en) Phosphorescent phosphor
US20190376652A1 (en) Photo Luminescent Lighting Device
US8304980B2 (en) Flourescence material and white light illumination element
JP2007036166A (en) Long persistence light

Legal Events

Date Code Title Description
A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20051226

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20060110

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20060307

RD02 Notification of acceptance of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7422

Effective date: 20060413

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A821

Effective date: 20060413

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20060620