JP7063100B2 - Wavelength conversion member - Google Patents

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JP7063100B2
JP7063100B2 JP2018091450A JP2018091450A JP7063100B2 JP 7063100 B2 JP7063100 B2 JP 7063100B2 JP 2018091450 A JP2018091450 A JP 2018091450A JP 2018091450 A JP2018091450 A JP 2018091450A JP 7063100 B2 JP7063100 B2 JP 7063100B2
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wavelength conversion
wavelength
light
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conversion member
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JP2018194831A (en
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正一 川井
知己 高木
美香 川北
進 祖父江
隆仁 中村
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Denso Corp
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Denso Corp
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Description

本発明は、光の波長を変換する波長変換部材に関する。 The present invention relates to a wavelength conversion member that converts the wavelength of light.

従来、光の波長を変換する波長変換材料が知られている。この種の波長変換材料では、所定範囲の波長の光を吸収して別の範囲の波長の光を放出することによって、光の波長を変換する。 Conventionally, wavelength conversion materials that convert the wavelength of light are known. In this type of wavelength conversion material, the wavelength of light is converted by absorbing light having a wavelength in a predetermined range and emitting light having a wavelength in another range.

例えば、特許文献１には、紫外光を可視光に変換する波長変換材料を用いた波長変換構造（換言すると、波長変換部材、あるいは、波長変換装置）が開示されている。さらに、特許文献１では、波長変換層における蛍光体粉末の体積率等を調整することによって、液晶ディスプレイ用のバックライトモジュールのような比較的大平面の可視光平面光源に適用可能な波長変換構造を提供しようとしている。 For example, Patent Document 1 discloses a wavelength conversion structure (in other words, a wavelength conversion member or a wavelength conversion device) using a wavelength conversion material that converts ultraviolet light into visible light. Further, in Patent Document 1, a wavelength conversion structure applicable to a relatively large plane visible light plane light source such as a backlight module for a liquid crystal display by adjusting the volume ratio of the phosphor powder in the wavelength conversion layer. Are trying to provide.

また、特許文献２には、所定範囲の波長の光を使用者の皮膚に照射することによって、美容効果あるいは医療効果を得る光照射装置が開示されている。さらに、特許文献２には、６００ｎｍ～７００ｎｍ程度の波長の赤色光を皮膚に照射することで、皮膚のシミやしわを改善する効果、あるいは皮膚の老化を抑制する効果が得られることも開示されている。 Further, Patent Document 2 discloses a light irradiating device that obtains a cosmetic effect or a medical effect by irradiating the skin of a user with light having a wavelength in a predetermined range. Further, Patent Document 2 also discloses that by irradiating the skin with red light having a wavelength of about 600 nm to 700 nm, an effect of improving skin stains and wrinkles or an effect of suppressing skin aging can be obtained. ing.

また、特許文献３には、所定範囲の波長の光を農作物に照射するための農作物栽培用資材が開示されている。さらに、特許文献３には、４５０ｎｍ～７００ｎｍの波長の光を野菜等の農作物に照射することで、農作物の成長を促進する効果や農作物の防虫効果が得られることも開示されている。 Further, Patent Document 3 discloses a material for cultivating a crop for irradiating the crop with light having a wavelength in a predetermined range. Further, Patent Document 3 also discloses that by irradiating a crop such as a vegetable with light having a wavelength of 450 nm to 700 nm, an effect of promoting the growth of the crop and an insect repellent effect of the crop can be obtained.

特開２００８－１７９７８１号公報Japanese Unexamined Patent Publication No. 2008-179781 特開２０１３－１４６５２８号公報Japanese Unexamined Patent Publication No. 2013-146528 特開２００７－１３５５８３号公報Japanese Unexamined Patent Publication No. 2007-135583

ここで、特許文献２に開示された美容効果や医療効果、あるいは、特許文献３に開示された農作物の生産性向上効果や防虫効果を容易に得る手段として、特許文献１に記載されたような波長変換材料を用いて、所望の範囲の波長の光を皮膚、あるいは、農作物に照射する手段が考えられる。 Here, as described in Patent Document 1, as a means for easily obtaining the beauty effect and medical effect disclosed in Patent Document 2, or the productivity improving effect and insect repellent effect of agricultural products disclosed in Patent Document 3. A means of irradiating the skin or agricultural products with light having a wavelength in a desired range using a wavelength conversion material can be considered.

例えば、波長変換材料をサンバイザーのつば部、日傘、帽子のつば部等に適用し、太陽光を受光できる場所へ移動することで、電源等を必要とすることなく容易に赤色光を皮膚に照射することができる。また、波長変換材料を農作物へ光を照射する照射装置等に適用することで、農作物の成長を促進する波長の光を農作物に照射することができる。 For example, by applying a wavelength conversion material to the brim of a sun visor, sunshade, brim of a hat, etc., and moving it to a place where sunlight can be received, red light can be easily applied to the skin without the need for a power source. Can be irradiated. Further, by applying the wavelength conversion material to an irradiation device or the like that irradiates the crop with light, it is possible to irradiate the crop with light having a wavelength that promotes the growth of the crop.

しかしながら、単に、波長変換材料を用いて太陽光に含まれる所定範囲の波長の光を、所望の範囲の波長の光に変換して照射するだけでは、美容効果、医療効果、農作物の生産性向上効果、農作物の防虫効果等を期待できる程度の光強度の光を得ることは難しい。 However, simply converting the light having a wavelength in a predetermined range contained in sunlight into light having a wavelength in a desired range and irradiating it with a wavelength conversion material improves the beauty effect, the medical effect, and the productivity of agricultural products. It is difficult to obtain light with a light intensity that can be expected to have an effect and an insect repellent effect on agricultural products.

本発明は、上記点に鑑み、光強度の低下を抑制しつつ所望の範囲の波長の光を照射可能な波長変換部材を提供することを目的とする。 In view of the above points, it is an object of the present invention to provide a wavelength conversion member capable of irradiating light having a wavelength in a desired range while suppressing a decrease in light intensity.

上記目的を達成するため、請求項１に記載の発明は、吸収波長が互いに異なる複数の波長変換材料を備え、複数の波長変換材料の発光波長は、予め定めた基準波長Ｋλ±５０ｎｍ以内になっており、基準波長Ｋλは、４５０ｎｍ～７００ｎｍの範囲内に設定されている波長変換部材である。 In order to achieve the above object, the invention according to claim 1 comprises a plurality of wavelength conversion materials having different absorption wavelengths, and the emission wavelengths of the plurality of wavelength conversion materials are within a predetermined reference wavelength Kλ ± 50 nm. The reference wavelength Kλ is a wavelength conversion member set in the range of 450 nm to 700 nm .

これによれば、吸収波長が互いに異なる複数の波長変換材料を備えているので、太陽光等の入射光から種々の波長の光を吸収することができる。そして、複数の波長変換材料から基準波長Ｋλ±５０ｎｍ以内の波長の光を放出するので、当該範囲内の波長の光の光強度の低下を抑制することができる。 According to this, since a plurality of wavelength conversion materials having different absorption wavelengths are provided, it is possible to absorb light having various wavelengths from incident light such as sunlight. Since the light having a wavelength within the reference wavelength Kλ ± 50 nm is emitted from the plurality of wavelength conversion materials , it is possible to suppress a decrease in the light intensity of the light having a wavelength within the range.

ここで、基準波長Ｋλ±５０ｎｍ以内の波長の光は、使用者が概ね単色と感じる光となる。例えば、基準波長Ｋλを６５０ｎｍとして、６００ｎｍ～７００ｎｍ程度の波長の光に変換すれば、使用者が概ね赤色と感じる光を照射することができる。さらに、概ね単色と感じる光を照射するために、より好ましくは基準波長Ｋλ±２５ｎｍとしてもよい。 Here, the light having a wavelength within the reference wavelength Kλ ± 50 nm is light that the user feels to be generally monochromatic. For example, if the reference wavelength Kλ is set to 650 nm and the light is converted into light having a wavelength of about 600 nm to 700 nm, it is possible to irradiate light that the user feels to be generally red. Further, in order to irradiate light that is felt to be substantially monochromatic, the reference wavelength may be Kλ ± 25 nm.

従って、請求項１に記載の発明によれば、光強度の低下を招くことなく所望の範囲の波長の光を照射可能な波長変換部材を提供することができる。 Therefore, according to the first aspect of the present invention, it is possible to provide a wavelength conversion member capable of irradiating light having a wavelength in a desired range without causing a decrease in light intensity.

なお、この欄および特許請求の範囲で記載した各手段の括弧内の符号は、後述する実施形態に記載された具体的手段との対応関係を示す一例である。 It should be noted that the reference numerals in parentheses of each means described in this column and the scope of claims are examples showing the correspondence with the specific means described in the embodiments described later.

第１実施形態の波長変換部材の模式的な一部断面図である。It is a schematic partial sectional view of the wavelength conversion member of 1st Embodiment. 第１実施形態の波長変換部材の発光および太陽光のスペクトルを示すグラフである。It is a graph which shows the spectrum of the light emission and the sunlight of the wavelength conversion member of 1st Embodiment. 第１実施形態の第１～第４波長変換材料の発光励起強度を説明するための模式的なグラフである。It is a schematic graph for demonstrating the emission excitation intensity of the 1st to 4th wavelength conversion material of 1st Embodiment. 第２実施形態の波長変換部材の模式的な一部断面図である。It is a schematic partial sectional view of the wavelength conversion member of 2nd Embodiment. 第３実施形態の波長変換部材の別の変形例の模式的な一部断面図である。It is a schematic partial sectional view of another modification of the wavelength conversion member of 3rd Embodiment. 第４実施形態の波長変換部材の模式的な一部断面図である。It is a schematic partial sectional view of the wavelength conversion member of 4th Embodiment. 第４実施形態の赤外線反射材料の透過率特性を示すグラフである。It is a graph which shows the transmittance characteristic of the infrared reflective material of 4th Embodiment. 第５実施形態の波長変換部材の変形例の模式的な一部断面図である。It is a schematic partial sectional view of the modification of the wavelength conversion member of 5th Embodiment. 第６実施形態の波長変換部材の模式的な一部断面図である。It is a schematic partial sectional view of the wavelength conversion member of 6th Embodiment. 第７実施形態の波長変換部材の模式的な一部断面図である。It is a schematic partial sectional view of the wavelength conversion member of 7th Embodiment. 第８実施形態の照射装置の斜視図である。It is a perspective view of the irradiation apparatus of 8th Embodiment. 図１１のＶＩＩＩ－ＶＩＩＩ断面図であり、第８実施形態の照射装置の模式的な一部断面図である。11 is a sectional view taken along the line VIII-VIII of FIG. 11, which is a schematic partial sectional view of the irradiation apparatus according to the eighth embodiment. 第９実施形態の波長変換部材の模式的な一部断面図である。It is a schematic partial sectional view of the wavelength conversion member of 9th Embodiment. 第１０実施形態のヘルメットの模式的な断面図である。It is a schematic cross-sectional view of the helmet of the tenth embodiment. 第１１実施形態の帽子の模式的な斜視図である。It is a schematic perspective view of the hat of the eleventh embodiment. 第１１実施形態の繊維状の基材を布状に織り込んだものの一部拡大図である。It is a partially enlarged view of the fibrous base material of the eleventh embodiment woven into a cloth shape. 第１１実施形態の帽子の変形例を示す模式的な斜視図である。It is a schematic perspective view which shows the modification of the hat of 11th Embodiment. 第１２実施形態のフェイスバイザーの模式的な斜視図である。It is a schematic perspective view of the face visor of the twelfth embodiment. 第１３実施形態の波長変換部材の模式的な一部断面図である。It is a schematic partial sectional view of the wavelength conversion member of the thirteenth embodiment.

（第１実施形態）
図１～図３を用いて、本発明に係る波長変換部材１を説明する。本実施形態の波長変換部材１は、日除けとして利用されるサンバイザーのつば部（いわゆる、ひさしの部分）に適用されている。また、以下の説明において、４００ｎｍより短い波長の光は、紫外光である。４００ｎｍから７００ｎｍの波長の光は、可視光である。可視光のうち６００ｎｍ～７００ｎｍの波長の光は、赤色光である。 (First Embodiment)
The wavelength conversion member 1 according to the present invention will be described with reference to FIGS. 1 to 3. The wavelength conversion member 1 of the present embodiment is applied to a brim portion (so-called eaves portion) of a sun visor used as a sun visor. Further, in the following description, light having a wavelength shorter than 400 nm is ultraviolet light. Light having a wavelength of 400 nm to 700 nm is visible light. Of the visible light, the light having a wavelength of 600 nm to 700 nm is red light.

本実施形態の波長変換部材１は、図１の模式的な断面図に示すように、いずれも薄膜状に形成される第１～第４波長変換材料１１～１４、並びに、板状に形成された基材１５を有している。より詳細には、第１～第４波長変換材料１１～１４、並びに、基材１５は、互いに積層配置されて板状に一体化されている。 As shown in the schematic cross-sectional view of FIG. 1, the wavelength conversion member 1 of the present embodiment is formed in the form of first to fourth wavelength conversion materials 11 to 14 and plate in the form of thin films. It has a base material 15. More specifically, the first to fourth wavelength conversion materials 11 to 14 and the base material 15 are laminated and arranged with each other and integrated in a plate shape.

第１～第４波長変換材料１１～１４は、所定の波長の光を吸収して別の範囲の波長の光を放出することによって、光の波長を変化するものである。 The first to fourth wavelength conversion materials 11 to 14 change the wavelength of light by absorbing light having a predetermined wavelength and emitting light having a wavelength in another range.

第１～第４波長変換材料１１～１４の吸収波長（すなわち、波長変換材料が励起される光の波長）は、図２に示すように、互いに異なっている。一方、第１～第４波長変換材料１１～１４の発光波長（すなわち、波長変換材料が励起されることによって放出する光の波長）は、６００ｎｍから６５０ｎｍの範囲にピークがある。このため、第１～第４波長変換材料１１～１４が積層配置された、波長変換部材１では、図２の太実線に示すように、ほぼ同等の波長の赤色光を発光する。 As shown in FIG. 2, the absorption wavelengths of the first to fourth wavelength conversion materials 11 to 14 (that is, the wavelength of the light at which the wavelength conversion material is excited) are different from each other. On the other hand, the emission wavelengths of the first to fourth wavelength conversion materials 11 to 14 (that is, the wavelength of the light emitted when the wavelength conversion material is excited) have a peak in the range of 600 nm to 650 nm. Therefore, the wavelength conversion member 1 in which the first to fourth wavelength conversion materials 11 to 14 are laminated and arranged emits red light having substantially the same wavelength as shown by the thick solid line in FIG.

換言すると、本実施形態では、基準波長Ｋλを６２５ｎｍとしたときに、第１～第４波長変換材料１１～１４の発光波長が基準波長Ｋλ±５０ｎｍ以内の波長となっている。このため、第１～第４波長変換材料１１～１４にて変換された波長の光は、使用者が概ね単色と感じる程度に同等の波長の赤色光となって重なって発光する。より好ましくは、第１～第４波長変換材料１１～１４の発光波長が基準波長Ｋλ±２５ｎｍ以内の波長となっていることが望ましい。 In other words, in the present embodiment, when the reference wavelength Kλ is 625 nm, the emission wavelengths of the first to fourth wavelength conversion materials 11 to 14 are within the reference wavelength Kλ ± 50 nm. Therefore, the light having the wavelength converted by the first to fourth wavelength conversion materials 11 to 14 becomes red light having the same wavelength to the extent that the user feels that the color is substantially monochromatic, and emits light in an overlapping manner. More preferably, it is desirable that the emission wavelengths of the first to fourth wavelength conversion materials 11 to 14 are within the reference wavelength Kλ ± 25 nm.

具体的には、本実施形態の第１波長変換材料１１は、基材１５の一方の面側に配置されている。第１波長変換材料１１は、第１～第４波長変換材料１１～１４のうち、最も外側に配置されている。第１波長変換材料１１は、波長変換部材１において、光を入射させる入射面１０ａを形成している。 Specifically, the first wavelength conversion material 11 of the present embodiment is arranged on one surface side of the base material 15. The first wavelength conversion material 11 is arranged on the outermost side of the first to fourth wavelength conversion materials 11 to 14. The first wavelength conversion material 11 forms an incident surface 10a on which light is incident on the wavelength conversion member 1.

第１波長変換材料１１は、Ｅｕ錯体（すなわち、ユウロピウム錯体）の赤い発光材料であり、具体的には、ルミシス（登録商標）を採用している。この第１波長変換材料１１の吸収波長（換言すると、励起波長）は、図２に示すように、３００ｎｍから４００ｎｍであり、発光波長は６２０ｎｍである。 The first wavelength conversion material 11 is a red light emitting material of an Eu complex (that is, a europium complex), and specifically, Lumisys (registered trademark) is adopted. As shown in FIG. 2, the absorption wavelength (in other words, the excitation wavelength) of the first wavelength conversion material 11 is 300 nm to 400 nm, and the emission wavelength is 620 nm.

第２波長変換材料１２は、第１波長変換材料１１よりも基材１５側に配置されている。第２波長変換材料１２は、有機蛍光材料であり、具体的には、Ｄｉ－８－ＡＮＥＰＰＳを採用している。この第２波長変換材料１２の吸収波長は、図２に示すように、４６７ｎｍ程度であり、発光波長は６３１ｎｍである。 The second wavelength conversion material 12 is arranged closer to the base material 15 than the first wavelength conversion material 11. The second wavelength conversion material 12 is an organic fluorescent material, and specifically, Di-8-ANEPPS is adopted. As shown in FIG. 2, the absorption wavelength of the second wavelength conversion material 12 is about 467 nm, and the emission wavelength is 631 nm.

第３波長変換材料１３は、第２波長変換材料１２よりも基材１５側に配置されている。第３波長変換材料１３は、有機蛍光材料であり、具体的には、Ｅｔｈｉｄｉｕｍ ｂｒｏｍｉｄｅ（臭化エチジウム）である。この第３波長変換材料１３の吸収波長は、図２に示すように、５１８ｎｍであり、発光波長は６０３ｎｍである。 The third wavelength conversion material 13 is arranged closer to the base material 15 than the second wavelength conversion material 12. The third wavelength conversion material 13 is an organic fluorescent material, specifically, Ethidium bromide (ethidium bromide). As shown in FIG. 2, the absorption wavelength of the third wavelength conversion material 13 is 518 nm, and the emission wavelength is 603 nm.

第４波長変換材料１４は、第３波長変換材料１３よりも基材１５側に配置されて、基材１５に一方の面に接合されている。第４波長変換材料１４は、有機蛍光材料であり、具体的には、ＡＴＴＯ－ＴＥＣ株式会社製のＡＴＴＯ ５９４を採用している。この第４波長変換材料１４の吸収波長は、図２に示すように、６０１ｎｍであり、発光波長は６２４ｎｍである。 The fourth wavelength conversion material 14 is arranged closer to the base material 15 than the third wavelength conversion material 13 and is bonded to the base material 15 on one surface. The fourth wavelength conversion material 14 is an organic fluorescent material, and specifically, ATTO 594 manufactured by ATTO-TEC Co., Ltd. is adopted. As shown in FIG. 2, the absorption wavelength of the fourth wavelength conversion material 14 is 601 nm, and the emission wavelength is 624 nm.

このため、図３の模式的なグラフに示すように、第１波長変換材料１１の吸収波長（図３の細実線）、第２波長変換材料１２の吸収波長（図３の細破線）、第３波長変換材料１１の吸収波長（図３の細一点鎖線）、および第４波長変換材料１４の吸収波長（図３の細二点鎖線）のピーク値は、互いに異なっている。さらに、第１～第４波長変換材料１１～１４の発光は、図３の太実線に示すように、使用者が概ね単色と感じる程度に同等の波長の赤色光となって重なって発光する。 Therefore, as shown in the schematic graph of FIG. 3, the absorption wavelength of the first wavelength conversion material 11 (fine solid line in FIG. 3), the absorption wavelength of the second wavelength conversion material 12 (fine broken line in FIG. 3), and the second The peak values of the absorption wavelength of the three-wavelength conversion material 11 (fine one-dot chain line in FIG. 3) and the absorption wavelength of the fourth wavelength conversion material 14 (fine two-dot chain line in FIG. 3) are different from each other. Further, as shown by the thick solid line in FIG. 3, the light emission of the first to fourth wavelength conversion materials 11 to 14 becomes red light of the same wavelength to the extent that the user feels that the color is substantially monochromatic, and emits light in an overlapping manner.

基材１５は、透明なアクリル樹脂にて形成されている。基材１５の他方の面、すなわち第４波長変換材料１４が配置される側の反対側の面は、入射面１０ａの反対側となる反対面１０ｂを形成している。基材１５を形成するアクリル樹脂は、紫外光を透過させない性質を有している。 The base material 15 is made of a transparent acrylic resin. The other surface of the base material 15, that is, the surface opposite to the side on which the fourth wavelength conversion material 14 is arranged, forms the opposite surface 10b which is the opposite side of the incident surface 10a. The acrylic resin forming the base material 15 has a property of not transmitting ultraviolet light.

次に、本実施形態の波長変換部材１の製造方法について説明する。まず、基材１５の入射面１０ａ側の面に第４波長変換材料１４を印刷あるいはロールコート法により塗布して乾燥させる（第４膜生成工程）。 Next, a method for manufacturing the wavelength conversion member 1 of the present embodiment will be described. First, the fourth wavelength conversion material 14 is applied to the surface of the base material 15 on the incident surface 10a side by a printing or roll coating method and dried (fourth film forming step).

同様に、第４波長変換材料１４の乾燥後、第４波長変換材料１４の外側の面（基材１５の反対側の面）に第３波長変換材料１３を塗布して乾燥させる（第３膜生成工程）。 Similarly, after the fourth wavelength conversion material 14 is dried, the third wavelength conversion material 13 is applied to the outer surface of the fourth wavelength conversion material 14 (the surface opposite to the base material 15) and dried (third film). Generation process).

同様に、第３波長変換材料１３の乾燥後、第３波長変換材料１３の外側の面（基材１５の反対側の面）に第２波長変換材料１２を塗布して乾燥させる（第２膜生成工程）。 Similarly, after the third wavelength conversion material 13 is dried, the second wavelength conversion material 12 is applied to the outer surface of the third wavelength conversion material 13 (the surface opposite to the base material 15) and dried (second film). Generation process).

同様に、第２波長変換材料１２の乾燥後、第２波長変換材料１２の外側の面（基材１５の反対側の面）に第１波長変換材料１１を塗布して乾燥させる（第１膜生成工程）。これにより、波長変換部材１が製造される。 Similarly, after the second wavelength conversion material 12 is dried, the first wavelength conversion material 11 is applied to the outer surface of the second wavelength conversion material 12 (the surface opposite to the base material 15) and dried (first film). Generation process). As a result, the wavelength conversion member 1 is manufactured.

次に、本実施形態の波長変換部材１の作用効果について説明する。本実施形態の波長変換部材１は、サンバイザーのつば部に適用されているので、使用者が太陽光を受光可能な場所へ移動すると、波長変換部材１の入射面１０ａから入射した太陽光の波長が変換される。そして、変換された６０３ｎｍ～６３１ｎｍの波長の変換光（すなわち、赤色光）を、反対面１０ｂ等から使用者側へ照射することができる。 Next, the action and effect of the wavelength conversion member 1 of the present embodiment will be described. Since the wavelength conversion member 1 of the present embodiment is applied to the brim of the sun visor, when the user moves to a place where sunlight can be received, the sunlight incident from the incident surface 10a of the wavelength conversion member 1 is generated. The wavelength is converted. Then, the converted light having a wavelength of 603 nm to 631 nm (that is, red light) can be irradiated to the user side from the opposite surface 10b or the like.

この際、本実施形態の波長変換部材１では、吸収波長が互いに異なる複数の第１～第４波長変換材料１１～１４を備えているので、太陽光から種々の波長の光を吸収することができる。そして、複数の第１～第４波長変換材料１１～１４から、６０３ｎｍ～６３１ｎｍの波長の赤色光を放出するので、赤色光の光強度の低下を抑制することができる。 At this time, since the wavelength conversion member 1 of the present embodiment includes a plurality of first to fourth wavelength conversion materials 11 to 14 having different absorption wavelengths from each other, it is possible to absorb light of various wavelengths from sunlight. can. Then, since red light having a wavelength of 603 nm to 631 nm is emitted from the plurality of first to fourth wavelength conversion materials 11 to 14, it is possible to suppress a decrease in the light intensity of the red light.

従って、本実施形態の波長変換部材１が適用されたサンバイザーによれば、着用している使用者が太陽光を受光可能は場所へ移動することで、光強度の低下を招くことなく、所望の範囲の波長に変換された変換光（本実施形態では、赤色光）を、皮膚に照射することができる。そして、シミやしわを改善する美容効果、皮膚の老化を抑制する医療効果等を得ることができる。 Therefore, according to the sun visor to which the wavelength conversion member 1 of the present embodiment is applied, it is desired that the wearing user moves to a place where the sunlight can be received without causing a decrease in light intensity. The skin can be irradiated with the converted light (red light in this embodiment) converted to a wavelength in the range of. Then, it is possible to obtain a cosmetic effect of improving spots and wrinkles, a medical effect of suppressing skin aging, and the like.

（第２実施形態）
本実施形態では、第１実施形態の変形例として、波長変換部材１ａについて説明する。本実施形態の波長変換部材１ａは、図４の断面図に示すように、第１～第４波長変換材料１１～１４を、それぞれ異なる板状の第１～第４基材１５ａ～１５ｄに塗布し、これらの第１～第４基材１５ａ～１５ｄを互いに積層配置することによって形成されている。第１～第４基材１５ａ～１５ｄは、第１実施形態で説明した基材１５と同等のものである。 (Second Embodiment)
In this embodiment, the wavelength conversion member 1a will be described as a modification of the first embodiment. In the wavelength conversion member 1a of the present embodiment, as shown in the cross-sectional view of FIG. 4, the first to fourth wavelength conversion materials 11 to 14 are applied to different plate-shaped first to fourth base materials 15a to 15d. It is formed by laminating these first to fourth base materials 15a to 15d with each other. The first to fourth base materials 15a to 15d are equivalent to the base materials 15 described in the first embodiment.

なお、図４は、第１実施形態で説明した図１に対応する図面であって、第１実施形態と同一もしくは均等部分には同一の符号を付している。このことは、以下の図面でも同様である。 Note that FIG. 4 is a drawing corresponding to FIG. 1 described in the first embodiment, and the same or equal parts as those in the first embodiment are designated by the same reference numerals. This also applies to the following drawings.

次に、本実施形態の波長変換部材１ａの製造方法について説明する。まず、第１基材１５ａに第１波長変換材料１１を塗布して乾燥させる（第１基材製造工程）。同様に、第２～第４基材１５ｂ～１５ｄに、それぞれ第２～第４波長変換材料１２～１４を塗布して乾燥させる（第２～第４基材製造工程）。 Next, a method for manufacturing the wavelength conversion member 1a of the present embodiment will be described. First, the first wavelength conversion material 11 is applied to the first base material 15a and dried (first base material manufacturing step). Similarly, the second to fourth wavelength conversion materials 12 to 14 are applied to the second to fourth base materials 15b to 15d, respectively, and dried (second to fourth base material manufacturing steps).

そして、入射面１０ａ側から、第１波長変換材料１１が塗布された第１基材１５ａ→第２波長変換材料１２が塗布された第２基材１５ｂ→第３波長変換材料１３が塗布された第３基材１５ｃ→第４波長変換材料１４が塗布された第４基材１５ｄの順に積層配置して互いに接合して固定する（基材積層工程）。 Then, from the incident surface 10a side, the first base material 15a coated with the first wavelength conversion material 11 → the second base material 15b coated with the second wavelength conversion material 12 → the third wavelength conversion material 13 was applied. The third base material 15c → the fourth base material 15d coated with the fourth wavelength conversion material 14 are laminated and arranged in this order, joined to each other and fixed (base material laminating step).

従って、本実施形態の波長変換部材１ａが適用されたサンバイザーによれば、第１実施形態と同様に、光強度の低下を招くことなく、複数の第１～第４波長変換材料１１～１４にて所望の範囲の波長に変換された変換光を使用者側へ照射することができる。 Therefore, according to the sun visor to which the wavelength conversion member 1a of the present embodiment is applied, as in the first embodiment, the plurality of first to fourth wavelength conversion materials 11 to 14 without causing a decrease in light intensity. The converted light converted to a wavelength in a desired range can be irradiated to the user side.

さらに、波長変換部材１ａの製造方法では、それぞれの基材製造工程を実施する際に、他の基材製造工程における波長変換材料の乾燥を待つ必要がない。つまり、第１～第４基材製造工程を同時に実施することができる。従って、波長変換部材の生産性を向上させることができる。 Further, in the method for manufacturing the wavelength conversion member 1a, it is not necessary to wait for the wavelength conversion material to dry in the other base material manufacturing steps when each base material manufacturing step is carried out. That is, the first to fourth base material manufacturing steps can be carried out at the same time. Therefore, the productivity of the wavelength conversion member can be improved.

（第３実施形態）
本実施形態では、第１実施形態の変形例として、波長変換部材１ｂについて説明する。本実施形態の波長変換部材１ｂは、図５の断面図に示すように、第１～第４波長変換材料１１～１４を、それぞれ異なる板状の第１～第４含有基材１５ｅ～１５ｈに含有させて、これらの第１～第４含有基材１５ｅ～１５ｈを互いに積層配置することによって形成されている。 (Third Embodiment)
In this embodiment, the wavelength conversion member 1b will be described as a modification of the first embodiment. As shown in the cross-sectional view of FIG. 5, the wavelength conversion member 1b of the present embodiment uses the first to fourth wavelength conversion materials 11 to 14 on different plate-shaped first to fourth-containing base materials 15e to 15h. It is formed by containing and arranging these first to fourth containing base materials 15e to 15h in a laminated manner with each other.

次に、本実施形態の波長変換部材１ｂの製造方法について説明する。まず、有機溶剤に溶解させた第１波長変換材料１１を、加熱して融解させた透明なアクリル樹脂製の基材に混合する。さらに、第１波長変換材料１１が混合された基材を冷却して凝固させる。これにより、板状の第１含有基材１５ｅが製造される（第１含有基材製造工程）。 Next, a method for manufacturing the wavelength conversion member 1b of the present embodiment will be described. First, the first wavelength conversion material 11 dissolved in an organic solvent is mixed with a transparent acrylic resin base material melted by heating. Further, the base material mixed with the first wavelength conversion material 11 is cooled and solidified. As a result, the plate-shaped first-containing base material 15e is manufactured (first-containing base material manufacturing step).

同様に、有機溶剤に溶解させた第２～第４波長変換材料１２～１４を、それぞれ加熱して融解させた透明なアクリル樹脂製の基材に混合する。さらに、第２～第４波長変換材料１２～１４が混合されたそれぞれの基材を冷却して凝固させる。これにより、板状の第２～第４含有基材１５ｆ～１５ｈが製造される（第２～第４含有基材製造工程）。 Similarly, the second to fourth wavelength conversion materials 12 to 14 dissolved in an organic solvent are mixed with a transparent acrylic resin substrate which has been heated and melted. Further, each substrate in which the second to fourth wavelength conversion materials 12 to 14 are mixed is cooled and solidified. As a result, plate-shaped second to fourth-containing base materials 15f to 15h are manufactured (second to fourth-containing base material manufacturing step).

そして、入射面１０ａ側から、第１含有基材１５ｅ→第２含有基材１５ｆ→第３含有基材１５ｇ→第４含有基材１５ｈの順に積層配置して互いに接合して固定する（含有基材積層工程）。 Then, from the incident surface 10a side, the first-containing base material 15e → the second-containing base material 15f → the third-containing base material 15 g → the fourth-containing base material 15h are laminated in this order and bonded to each other and fixed (containing groups). Material laminating process).

従って、本実施形態の波長変換部材１ｂが適用されたサンバイザーによれば、第１実施形態と同様に、光強度の低下を招くことなく、複数の第１～第４波長変換材料１１～１４にて所望の範囲の波長に変換された変換光を使用者側へ照射することができる。さらに、波長変換部材１ｂの製造方法では、第１～第４含有基材製造工程を同時に実施することができる。従って波長変換部材の生産性を向上させることができる。 Therefore, according to the sun visor to which the wavelength conversion member 1b of the present embodiment is applied, as in the first embodiment, the plurality of first to fourth wavelength conversion materials 11 to 14 without causing a decrease in light intensity. The converted light converted to a wavelength in a desired range can be irradiated to the user side. Further, in the method for manufacturing the wavelength conversion member 1b, the first to fourth-containing base material manufacturing steps can be carried out at the same time. Therefore, the productivity of the wavelength conversion member can be improved.

（第４実施形態）
本実施形態の波長変換部材１では、第１実施形態の波長変換部材１に対して、図６の断面図に示すように、第１波長変換材料１１と第２波長変換材料１２との間に、薄膜状の赤外線反射材料１６を配置している。 (Fourth Embodiment)
In the wavelength conversion member 1 of the present embodiment, with respect to the wavelength conversion member 1 of the first embodiment, as shown in the cross-sectional view of FIG. 6, between the first wavelength conversion material 11 and the second wavelength conversion material 12. , A thin-film infrared reflective material 16 is arranged.

赤外線反射材料１６は、スズドープ酸化インジウムのナノ粒子をシロキサンおよび樹脂に混合したものである。本実施形態の赤外線反射材料１６は、図７に示すように、１０００ｎｍ以上の波長の赤外光を反射するとともに、バンドギャップから４００ｎｍ以下の波長の紫外光を吸収する性質を有している。 The infrared reflective material 16 is a mixture of nanoparticles of tin-doped indium oxide with siloxane and resin. As shown in FIG. 7, the infrared reflective material 16 of the present embodiment has a property of reflecting infrared light having a wavelength of 1000 nm or more and absorbing ultraviolet light having a wavelength of 400 nm or less from the band gap.

従って、赤外線反射材料１６は、第１波長変換材料１１にて変換された６２０ｎｍの波長の赤色光を透過させる性質を有するとともに、１０００ｎｍ以上の波長の赤外光および４００以下の波長の紫外光を透過させない性質を有している。 Therefore, the infrared reflective material 16 has a property of transmitting red light having a wavelength of 620 nm converted by the first wavelength conversion material 11, and also transmits infrared light having a wavelength of 1000 nm or more and ultraviolet light having a wavelength of 400 or less. It has the property of not allowing transmission.

より好ましくは、赤外線反射材料１６は、７００ｎｍ以上の波長の赤外光を反射させる性質を有していることが望ましい。このような赤外線反射材料１６における反射波長は、赤外線反射材料１６の板厚を変化させることによって調整することができる。 More preferably, the infrared reflective material 16 has a property of reflecting infrared light having a wavelength of 700 nm or more. The reflection wavelength of such an infrared reflective material 16 can be adjusted by changing the plate thickness of the infrared reflective material 16.

次に、本実施形態の波長変換部材１の製造方法について説明する。本実施形態では、第１実施形態に対して、第２波長変換材料１４の乾燥後に、第２波長変換材料１４にスズ添加参加インジウムのナノ粒子溶液とシロキサン溶液、アクリル樹脂溶液を混合させた溶液を塗布して乾燥させる（赤外線反射膜生成工程）。そして、赤外線反射材料１６の乾燥後、赤外線反射材料１６に第１波長変換材料１１を塗布して乾燥させる。その他の工程は第１実施形態と同様である。 Next, a method for manufacturing the wavelength conversion member 1 of the present embodiment will be described. In the present embodiment, with respect to the first embodiment, after the second wavelength conversion material 14 is dried, the second wavelength conversion material 14 is mixed with a nanoparticle solution of tin-added participating infrared particles, a siloxane solution, and an acrylic resin solution. Is applied and dried (infrared reflective film generation step). Then, after the infrared reflective material 16 is dried, the first wavelength conversion material 11 is applied to the infrared reflective material 16 and dried. Other steps are the same as in the first embodiment.

従って、本実施形態の波長変換部材１によれば、第１実施形態と同様に、光強度の低下を招くことなく、複数の第１～第４波長変換材料１１～１４にて所望の範囲の波長に変換された変換光（本実施形態では、赤色光）を使用者側へ照射することができる。 Therefore, according to the wavelength conversion member 1 of the present embodiment, as in the first embodiment, the plurality of first to fourth wavelength conversion materials 11 to 14 have a desired range without causing a decrease in light intensity. The converted light converted to a wavelength (red light in this embodiment) can be irradiated to the user side.

さらに、本実施形態の波長変換部材１によれば、赤外線反射材料１６にて赤外光が反射されるので、使用者へ赤色光が照射されても熱くならない。また、赤外線反射材料１６にて紫外光が吸収されるので、使用者へ皮膚癌等の原因となり得る紫外光が照射されてしまうことを抑制することができる。 Further, according to the wavelength conversion member 1 of the present embodiment, since the infrared light is reflected by the infrared reflecting material 16, the user does not get hot even if the user is irradiated with red light. Further, since the infrared reflective material 16 absorbs ultraviolet light, it is possible to prevent the user from being irradiated with ultraviolet light that may cause skin cancer or the like.

また、本実施形態では、赤外線反射材料１６が、第１波長変換材料１１と第２波長変換材料１２との間に配置されている。つまり、赤外線反射材料１６が、第１波長変換材料から照射される光に含まれる赤外線を反射するように配置されている。この配置によれば、第１波長変換材料１１にて４００ｎｍ以下の波長の光（すなわち、紫外光）を吸収させて、６２０ｎｍの波長の赤色光を確実に発光させることができる。 Further, in the present embodiment, the infrared reflective material 16 is arranged between the first wavelength conversion material 11 and the second wavelength conversion material 12. That is, the infrared reflecting material 16 is arranged so as to reflect the infrared rays contained in the light emitted from the first wavelength conversion material. According to this arrangement, the first wavelength conversion material 11 can absorb light having a wavelength of 400 nm or less (that is, ultraviolet light) and reliably emit red light having a wavelength of 620 nm.

（第５実施形態）
本実施形態では、第４実施形態の変形例として、図８の断面図に示すように、赤外線反射材料１６に代えて、赤外線吸収材料１６ａを採用した波長変換部材１について説明する。 (Fifth Embodiment)
In the present embodiment, as a modification of the fourth embodiment, the wavelength conversion member 1 in which the infrared absorbing material 16a is used instead of the infrared reflecting material 16 will be described as shown in the cross-sectional view of FIG.

赤外線吸収材料１６ａは、酸化インジウムのナノ粒子をシロキサンおよび樹脂に混合したものである。本実施形態の赤外線吸収材料１６ａは、１０００ｎｍ以上の波長の赤外光および４００ｎｍ以下の波長の紫外光を吸収して、熱エネルギーに変換する性質を有している。 The infrared absorbing material 16a is a mixture of nanoparticles of indium oxide with siloxane and resin. The infrared absorbing material 16a of the present embodiment has a property of absorbing infrared light having a wavelength of 1000 nm or more and ultraviolet light having a wavelength of 400 nm or less and converting them into heat energy.

従って、赤外線吸収材料１６ａは、第４実施形態で説明した赤外線反射材料１６と同様に、第１波長変換材料１１にて変換された６２０ｎｍの波長の赤色光を透過させる性質を有するとともに、１０００ｎｍ以上の波長の赤外光および４００以下の波長の紫外光を透過させない性質を有している。 Therefore, the infrared absorbing material 16a has a property of transmitting red light having a wavelength of 620 nm converted by the first wavelength conversion material 11 and having a property of 1000 nm or more, similarly to the infrared reflecting material 16 described in the fourth embodiment. It has the property of not transmitting infrared light having a wavelength of 400 or less and ultraviolet light having a wavelength of 400 or less.

より好ましくは、赤外線吸収材料１６ａは、７００ｎｍ以上の波長の赤外光を吸収させる性質を有していることが望ましい。このような赤外線吸収材料１６ａにおける吸収波長は、赤外線吸収材料１６ａの板厚を変化させることによって調整することができる。また、本実施形態の波長変換部材１は、第４実施形態と同様に製造することができる。 More preferably, the infrared absorbing material 16a has a property of absorbing infrared light having a wavelength of 700 nm or more. The absorption wavelength of such an infrared absorbing material 16a can be adjusted by changing the plate thickness of the infrared absorbing material 16a. Further, the wavelength conversion member 1 of the present embodiment can be manufactured in the same manner as in the fourth embodiment.

従って、本実施形態の波長変換部材１によれば、第４実施形態と同様の効果を得ることができる。また、第４実施形態で説明した赤外線反射材料１６の板厚を変化させることによって、赤外線吸収材料として用いることもできる。さらに、赤外線反射材料１６あるいは赤外線吸収材料１６ａの板厚を変化させることによって、所定の波長以上の赤外光の一部を反射して、残余を吸収する赤外線反射吸収部材として用いることもできる。 Therefore, according to the wavelength conversion member 1 of the present embodiment, the same effect as that of the fourth embodiment can be obtained. Further, it can also be used as an infrared absorbing material by changing the plate thickness of the infrared reflecting material 16 described in the fourth embodiment. Further, by changing the plate thickness of the infrared reflecting material 16 or the infrared absorbing material 16a, it can be used as an infrared reflecting absorbing member that reflects a part of infrared light having a predetermined wavelength or more and absorbs the residue.

（第６実施形態）
第１～第５実施形態では、主に波長変換部材１、１ａ、１ｂの反対面１０ｂから使用者側へ照射される変換光について説明した。 (Sixth Embodiment)
In the first to fifth embodiments, the conversion light emitted mainly from the opposite surfaces 10b of the wavelength conversion members 1, 1a and 1b to the user side has been described.

ここで、第１～第４波長変換材料１１～１４では、全反射条件のため、吸収したエネルギーの約１５％分の変換光が入射面１０ａから照射され、約１５％分の変換光が反対面１０ｂから照射され、残余の７０％分の変換光が入射面１０ａの端部と反対面１０ｂの端部とを結ぶ端面１０ｃから照射されることが判っている。 Here, in the first to fourth wavelength conversion materials 11 to 14, the conversion light corresponding to about 15% of the absorbed energy is irradiated from the incident surface 10a due to the total reflection condition, and the conversion light corresponding to about 15% is opposite. It is known that the light is emitted from the surface 10b, and the remaining 70% of the converted light is emitted from the end surface 10c connecting the end of the incident surface 10a and the end of the opposite surface 10b.

そこで、本実施形態では、波長変換部材１において、図９に断面図に示すように、入射面１０ａよりも反対面１０ｂが拡がるように端面１０ｃを傾斜させている。そして、端面１０ｃに、第１～第４波長変換材料１１～１４にて変換された変換光を反射させる反射材１７を配置している。このような反射材１７は、アルミニウムの薄板で形成することができる。その他の構成は、第１実施形態と同様である。 Therefore, in the present embodiment, in the wavelength conversion member 1, as shown in the cross-sectional view in FIG. 9, the end surface 10c is inclined so that the opposite surface 10b expands from the incident surface 10a. Then, a reflective material 17 that reflects the converted light converted by the first to fourth wavelength conversion materials 11 to 14 is arranged on the end face 10c. Such a reflective material 17 can be formed of a thin plate of aluminum. Other configurations are the same as those of the first embodiment.

従って、本実施形態の波長変換部材１によれば、第１実施形態と同様に、光強度の低下を招くことなく、複数の第１～第４波長変換材料１１～１４にて変換された変換光を使用者側へ照射することができる。この際、端面１０ｃに反射材１７を配置しているので、反対面１０ｂから照射される変換光に加えて、端面１０ｃから照射される変換光についても照射方向を転向させて使用者側へ照射することができる。 Therefore, according to the wavelength conversion member 1 of the present embodiment, as in the first embodiment, the conversion converted by the plurality of first to fourth wavelength conversion materials 11 to 14 without causing a decrease in light intensity. Light can be applied to the user side. At this time, since the reflective material 17 is arranged on the end surface 10c, in addition to the conversion light emitted from the opposite surface 10b, the conversion light emitted from the end surface 10c is also irradiated in the irradiation direction to the user side. can do.

（第７実施形態）
本実施形態では、第６実施形態に対して、図１０の断面図に示すように、基材１５を湾曲した板状に形成することによって、端面１０ｃの少なくとも一部を、反対面１０ｂと平行に配置している。その他の構成は、第１実施形態と同様である。 (7th Embodiment)
In the present embodiment, as shown in the cross-sectional view of FIG. 10, the base material 15 is formed in a curved plate shape with respect to the sixth embodiment so that at least a part of the end surface 10c is parallel to the opposite surface 10b. It is placed in. Other configurations are the same as those of the first embodiment.

従って、本実施形態の波長変換部材１によれば、第１実施形態と同様に、光強度の低下を招くことなく、複数の第１～第４波長変換材料１１～１４にて変換された変換光を使用者側へ照射することができる。この際、端面１０ｃの少なくとも一部を、反対面１０ｂと平行に配置しているので、反対面１０ｂから照射される変換光に加えて、端面１０ｃから照射される変換光も使用者側へ効率良く照射することができる。 Therefore, according to the wavelength conversion member 1 of the present embodiment, as in the first embodiment, the conversion converted by the plurality of first to fourth wavelength conversion materials 11 to 14 without causing a decrease in light intensity. Light can be applied to the user side. At this time, since at least a part of the end surface 10c is arranged in parallel with the opposite surface 10b, in addition to the conversion light emitted from the opposite surface 10b, the conversion light emitted from the end surface 10c is also efficient toward the user side. It can be irradiated well.

（第８実施形態）
本実施形態では、波長変換部材１を、いわゆる植物工場における水耕栽培に用いられて、野菜等に対して所定の範囲内の波長の光を照射する照射装置２に適用した例を説明する。 (8th Embodiment)
In this embodiment, an example in which the wavelength conversion member 1 is used for hydroponics in a so-called plant factory and applied to an irradiation device 2 that irradiates vegetables and the like with light having a wavelength within a predetermined range will be described.

照射装置２は、図１１、図１２に示すように、波長変換部材１の一つの端面１０ｃに集光器１８および光ファイバー１９を配置している。さらに、反対面１０ｂおよび他の端面１０ｃに第６実施形態と同様の反射材１７を配置している。 As shown in FIGS. 11 and 12, the irradiation device 2 arranges the condenser 18 and the optical fiber 19 on one end surface 10c of the wavelength conversion member 1. Further, the same reflective material 17 as in the sixth embodiment is arranged on the opposite surface 10b and the other end surface 10c.

集光器１８は、内部で光を反射させて、他方の端面１０ｃから照射された光を集光するものである。光ファイバー１９は、集光器１８にて集光された光を照射対象物（本実施形態では、野菜等の農作物）側へ導く伝送路を形成するものである。 The light collector 18 reflects light internally and collects the light emitted from the other end face 10c. The optical fiber 19 forms a transmission path that guides the light collected by the condenser 18 to the irradiation target (in the present embodiment, agricultural products such as vegetables).

従って、本実施形態の波長変換部材１によれば、第１実施形態と同様に、光強度の低下を招くことなく、複数の第１～第４波長変換材料１１～１４にて、変換された所望の範囲の波長の光を照射対象物へ照射することができる。 Therefore, according to the wavelength conversion member 1 of the present embodiment, as in the first embodiment, the conversion is performed by the plurality of first to fourth wavelength conversion materials 11 to 14 without causing a decrease in light intensity. The object to be irradiated can be irradiated with light having a wavelength in a desired range.

さらに、本実施形態の波長変換部材１では、集光器１８を備えているので、複数の第１～第４波長変換材料１１～１４にて変換された変換光を集光して効率的に照射対象物へ照射することができる。そして、農作物の生産性向上効果、農作物の防虫効果等を得ることができる。 Further, since the wavelength conversion member 1 of the present embodiment includes the condenser 18, it efficiently condenses the converted light converted by the plurality of first to fourth wavelength conversion materials 11 to 14. It is possible to irradiate the object to be irradiated. Then, the productivity improving effect of the agricultural product, the insect repellent effect of the agricultural product, and the like can be obtained.

（第９実施形態）
上述の各実施形態では、第１～第４波長変換材料１１～１４を薄膜状に形成して積層配置した例を説明したが、本実施形態の波長変換部材１ｃでは、図１３に示すように、粒状の第１～第４波長変換材料１１～１４を採用している。より詳細には、本実施形態の波長変換部材１ｃは、粒状の第１～第４波長変換材料１１～１４が混合された結合剤（バインダー）を、基材１５に塗布して乾燥させることによって製造されたものである。 (9th Embodiment)
In each of the above-described embodiments, an example in which the first to fourth wavelength conversion materials 11 to 14 are formed in a thin film shape and stacked and arranged has been described, but in the wavelength conversion member 1c of the present embodiment, as shown in FIG. , Granular first to fourth wavelength conversion materials 11 to 14 are adopted. More specifically, the wavelength conversion member 1c of the present embodiment is formed by applying a binder (binder) in which granular first to fourth wavelength conversion materials 11 to 14 are mixed to a base material 15 and drying the base material 15. It is manufactured.

ここで、本実施形態における粒状には、球状、柱状、筒状、繊維状等、種々の形状が含まれる。それぞれの粒の大きさとしては、同じ体積の球に換算した際の直径が１ｎｍ～１ｍｍ程度のものまで広く採用することができる。本実施形態では、第１～第４波長変換材料１１～１４における変換光の散乱を抑制するために、同じ体積の球に換算した際の直径が１ｎｍ～１００ｎｍ程度の細粒を採用している。 Here, the granules in the present embodiment include various shapes such as spherical, columnar, tubular, and fibrous. As the size of each grain, those having a diameter of about 1 nm to 1 mm when converted into a sphere having the same volume can be widely adopted. In the present embodiment, in order to suppress the scattering of the converted light in the first to fourth wavelength conversion materials 11 to 14, fine particles having a diameter of about 1 nm to 100 nm when converted into a sphere of the same volume are adopted. ..

本実施形態の波長変換部材１ｃように、粒状の第１～第４波長変換材料１１～１４を採用しても、第１実施形態と同様に、光強度の低下を招くことなく、複数の第１～第４波長変換材料１１～１４にて、所望の範囲の波長に変換された変換光を照射対象物へ照射することができる。 Even if the granular first to fourth wavelength conversion materials 11 to 14 are adopted as in the wavelength conversion member 1c of the present embodiment, a plurality of first to fourth wavelength conversion materials 11 to 14 are adopted without causing a decrease in light intensity as in the first embodiment. The 1st to 4th wavelength conversion materials 11 to 14 can irradiate the irradiation target with the conversion light converted to a wavelength in a desired range.

（第１０実施形態）
本実施形態では、波長変換部材１を、図１４に示すように、ヘルメット３に適用した例を説明する。 (10th Embodiment)
In this embodiment, an example in which the wavelength conversion member 1 is applied to the helmet 3 as shown in FIG. 14 will be described.

ヘルメット３は、第１実施形態で説明した波長変換部材１を、ヘルメット状（帽子状）に成形したものである。ヘルメット３は、使用者の頭部を覆う本体部３ａ、および本体部３ａから前方側（使用者の視線方向）へ突出する三日月状のつば部３ｂを形成している。本体部３ａおよびつば部３ｂの外表面には、入射面１０ａが形成される。本体部３ａの内面側には、頭部を保護するためのスポンジ等の緩衝材２０が配置されている。 The helmet 3 is formed by molding the wavelength conversion member 1 described in the first embodiment into a helmet shape (hat shape). The helmet 3 forms a main body portion 3a that covers the user's head and a crescent-shaped brim portion 3b that protrudes forward (in the direction of the user's line of sight) from the main body portion 3a. An incident surface 10a is formed on the outer surfaces of the main body portion 3a and the brim portion 3b. A cushioning material 20 such as a sponge for protecting the head is arranged on the inner surface side of the main body portion 3a.

また、本体部３ａおよびつば部３ｂの内面（本実施形態では、第１実施形態で説明した反射面、および第７実施形態で説明した端面に対応する面）には、反射材１７が配置されている。さらに、つば部３ｂの内面のうち本体部３ａ側の根本部Ｐｘ、およびつば部３ｂの先端部Ｐｙには、つば部３ｂの縁部の形状に沿って、半円弧状に反射材１７が配置されていない部位が設けられている。 Further, the reflective material 17 is arranged on the inner surfaces of the main body portion 3a and the brim portion 3b (in the present embodiment, the reflective surface described in the first embodiment and the surface corresponding to the end surface described in the seventh embodiment). ing. Further, on the inner surface of the brim portion 3b, the base portion Px on the main body portion 3a side and the tip portion Py of the brim portion 3b, the reflective material 17 is arranged in a semicircular shape along the shape of the edge portion of the brim portion 3b. There is a part that is not.

このため、入射面１０ａから入射した太陽光は、波長変換部材１にて所望の範囲の波長に変換された変換光となって、波長変換部材１内を反射する。そして、変換光は、反射材１７が配置されていない半円弧状の部位（すなわち、根本部Ｐｘ、および先端部Ｐｙ）から使用者の顔面に向けて照射される。 Therefore, the sunlight incident from the incident surface 10a becomes converted light converted into a wavelength in a desired range by the wavelength conversion member 1 and is reflected in the wavelength conversion member 1. Then, the converted light is emitted from the semicircular portion (that is, the root portion Px and the tip portion Py) where the reflective material 17 is not arranged toward the user's face.

従って、本実施形態のヘルメット３によれば、第１実施形態と同様に、光強度の低下を招くことなく、所望の範囲の波長に変換された変換光を顔面に照射することができる。さらに、反射材１７を設ける位置によって、変換光が照射される方向や部位を容易に調整することができる。 Therefore, according to the helmet 3 of the present embodiment, as in the first embodiment, the face can be irradiated with the converted light converted to a wavelength in a desired range without causing a decrease in the light intensity. Further, the direction and portion where the converted light is irradiated can be easily adjusted depending on the position where the reflective material 17 is provided.

また、第６実施形態で説明したように、入射面の端部と反対面の端部とを結ぶ端面から照射される変換光の割合は比較的多い。従って、反射材１７が配置されていない部位を端面に一致させることで、端面からより高い光強度の変換光を照射することができる。 Further, as described in the sixth embodiment, the ratio of the converted light emitted from the end surface connecting the end portion of the incident surface and the end portion of the opposite surface is relatively large. Therefore, by aligning the portion where the reflective material 17 is not arranged with the end face, it is possible to irradiate the converted light having a higher light intensity from the end face.

（第１１実施形態）
本実施形態では、波長変換部材１ｄを、図１５に示すように、帽子４に適用した例を説明する。本実施形態の波長変換部材１ｄは、帽子４において使用者の頭部を覆う本体部４ａを形成している。波長変換部材１ｄは、帽子において本体部４ａから外周側へ突出する、つば部４ｂを除く部位を形成している。 (11th Embodiment)
In this embodiment, an example in which the wavelength conversion member 1d is applied to the hat 4 as shown in FIG. 15 will be described. The wavelength conversion member 1d of the present embodiment forms a main body portion 4a that covers the user's head in the hat 4. The wavelength conversion member 1d forms a portion of the hat excluding the brim portion 4b that protrudes from the main body portion 4a toward the outer peripheral side.

本実施形態の波長変換部材１ｄは、第１～第４波長変換材料１１～１４を含有する繊維状の基材１５ｉを、図１６に示すように、布状に織り込んだものである。 The wavelength conversion member 1d of the present embodiment is obtained by weaving a fibrous base material 15i containing the first to fourth wavelength conversion materials 11 to 14 into a cloth shape as shown in FIG.

このような繊維状の基材１５ｉは、第３実施形態と同様に、有機溶剤に溶解させた第１～第４波長変換材料１１～１４を、加熱して融解させた透明なアクリル樹脂製の基材に混合する。そして、波長変換材料を混合させたアクリル樹脂を、細孔から噴射させながら凝固させることによって製造することができる。 The fibrous base material 15i is made of a transparent acrylic resin obtained by heating and melting the first to fourth wavelength conversion materials 11 to 14 dissolved in an organic solvent, as in the third embodiment. Mix with the substrate. Then, it can be produced by solidifying an acrylic resin mixed with a wavelength conversion material while injecting it from the pores.

このため、本体部４ａの外表面から入射した太陽光は、波長変換部材１ｄにて所望の範囲の波長に変換された変換光となり、本体部４ａの内側面（使用者の頭部側の面）および繊維状の基材１５ｉの端部から使用者の頭部に向けて照射される。従って、本実施形態の波長変換部材４が適用された帽子によれば、第１実施形態と同様に、光強度の低下を招くことなく、所望の範囲の波長に変換された変換光を頭部に照射することができる。 Therefore, the sunlight incident from the outer surface of the main body 4a becomes converted light converted to a wavelength in a desired range by the wavelength conversion member 1d, and becomes the inner surface of the main body 4a (the surface on the head side of the user). ) And the end of the fibrous base material 15i toward the user's head. Therefore, according to the hat to which the wavelength conversion member 4 of the present embodiment is applied, as in the first embodiment, the converted light converted to a wavelength in a desired range is headed without causing a decrease in light intensity. Can be irradiated to.

また、本実施形態では、波長変換部材１ｄとして、第１～第４波長変換材料１１～１４を含有する繊維状の基材１５ｉを採用した例を説明したが、第１～第４波長変換材料１１～１４を、それぞれ異なる繊維状に基材に含有させたものを採用してもよい。そして、これらの異なる種類の波長変換材料を含有する複数の繊維状の基材を、互いに布状に織り込んだもので本体部４ａを形成してもよい。 Further, in the present embodiment, an example in which the fibrous base material 15i containing the first to fourth wavelength conversion materials 11 to 14 is adopted as the wavelength conversion member 1d has been described, but the first to fourth wavelength conversion materials have been described. 11 to 14 may be contained in the base material in different fibrous forms. Then, a plurality of fibrous base materials containing these different types of wavelength conversion materials may be woven into each other in a cloth shape to form the main body portion 4a.

さらに、図１７に示すように、波長変換部材１ｄによって、帽子において使用者の後頭部から首筋を覆うフード部４ｃを形成してもよい。これによれば、所望の範囲の波長に変換された変換光を使用者の後頭部から首筋に照射することができる。 Further, as shown in FIG. 17, the wavelength conversion member 1d may form a hood portion 4c that covers the nape of the user's occipital region in a hat. According to this, it is possible to irradiate the nape of the neck from the back of the head of the user with the converted light converted into a wavelength in a desired range.

また、繊維状の基材１５ｉの周囲にＥｕ錯体を樹脂材料に溶解したものをコーティングしてもよい。このようなＥｕ錯体としては、セントラルテクノ株式会社製のサンルミシスレッドを採用することができる。これによれば、紫外線領域の波長の光を吸収して、６００ｎｍ～７００ｎｍの波長の赤色光の発光を増強させることができる。 Further, the fibrous base material 15i may be coated with a Eu complex dissolved in a resin material. As such an Eu complex, Sanluminis red manufactured by Central Techno Co., Ltd. can be adopted. According to this, it is possible to absorb light having a wavelength in the ultraviolet region and enhance the emission of red light having a wavelength of 600 nm to 700 nm.

（第１２実施形態）
本実施形態では、波長変換部材１を、図１８に示すように、フェイスバイザー５に適用した例を説明する。フェイスバイザー５は、日焼け防止等を目的として、日射しの強い夏季等に顔面への紫外線の照射を抑制するために着用されるものである。フェイスバイザー５は、板状の波長変換部材１を湾曲させることによって形成された本体部５ａを有している。本体部５ａは、フェイスバイザー５において、使用者の顔面を覆う部位である。 (12th Embodiment)
In this embodiment, an example in which the wavelength conversion member 1 is applied to the face visor 5 as shown in FIG. 18 will be described. The face visor 5 is worn for the purpose of preventing sunburn and the like in order to suppress the irradiation of the face with ultraviolet rays in the summer when the sunlight is strong. The face visor 5 has a main body portion 5a formed by bending a plate-shaped wavelength conversion member 1. The main body portion 5a is a portion of the face visor 5 that covers the face of the user.

本体部５ａの上方側の端部には、反射材１７が配置されている。一方、本体部５ａの上方側の端部を除く、端部（すなわち、使用者の顔面に沿って湾曲する端部）は、その端面１０ｃが使用者の顔面に対向するように折り曲げられている。 A reflective material 17 is arranged at the upper end of the main body 5a. On the other hand, the end portion (that is, the end portion curved along the user's face) excluding the upper end portion of the main body portion 5a is bent so that the end surface 10c faces the user's face. ..

従って、本実施形態の波長変換部材１が適用されたフェイスバイザー５によれば、第１実施形態と同様に、顔面に紫外線が照射されてしまうことを抑制することができるとともに、光強度の低下を招くことなく、所望の範囲の波長に変換された変換光を顔面に照射することができる。さらに、本実施形態のフェイスバイザー５によれば、変換光を反対面１０ｂおよび下方側の端面１０ｃの双方から効率的に照射することができる。 Therefore, according to the face visor 5 to which the wavelength conversion member 1 of the present embodiment is applied, it is possible to suppress the irradiation of the face with ultraviolet rays and the light intensity is lowered as in the first embodiment. It is possible to irradiate the face with the converted light converted into a wavelength in a desired range without causing the problem. Further, according to the face visor 5 of the present embodiment, the converted light can be efficiently irradiated from both the opposite surface 10b and the lower end surface 10c.

（第１３実施形態）
本実施形態では、波長変換部材１の反対面１０ｂの一部に、図１９に示すように、粗面部１０ｄを形成した例を説明する。粗面部１０ｄは、光を照射する照射面に形成されて、光を入射させる入射面１０ａよりも表面粗さが粗い部位である。その他の構成は、第１実施形態と同様である。従って、本実施形態の波長変換部材１によれば、第１実施形態と同様の効果を得ることができる。 (13th Embodiment)
In this embodiment, an example in which a rough surface portion 10d is formed on a part of the opposite surface 10b of the wavelength conversion member 1 as shown in FIG. 19 will be described. The rough surface portion 10d is a portion formed on an irradiation surface to be irradiated with light and having a rougher surface than the incident surface 10a on which light is incident. Other configurations are the same as those of the first embodiment. Therefore, according to the wavelength conversion member 1 of the present embodiment, the same effect as that of the first embodiment can be obtained.

ここで、波長変換部材１では、第１～第４波長変換材料１１～１４が吸入したエネルギーのうち約１５％の変換光が反対面１０ｂから照射される。このため、反対面１０ｂのみを照射対象物へ変換光を照射する照射面として用いると、変換光の光強度が不充分になってしまうおそれがある。 Here, in the wavelength conversion member 1, about 15% of the energy absorbed by the first to fourth wavelength conversion materials 11 to 14 is irradiated with the conversion light from the opposite surface 10b. Therefore, if only the opposite surface 10b is used as the irradiation surface for irradiating the irradiation target with the conversion light, the light intensity of the conversion light may be insufficient.

これに対して、本実施形態の波長変換部材１では、反対面１０ｂに粗面部１０ｄが形成されているので、粗面部１０ｄにて変換光を散乱させることができる。これにより、変換光が反対面１０ｂにて全反射されてしまうことを抑制して、反対面１０ｂから照射対象物へ照射される変換光の強度が不充分になってしまうことを抑制することができる。 On the other hand, in the wavelength conversion member 1 of the present embodiment, since the rough surface portion 10d is formed on the opposite surface 10b, the converted light can be scattered by the rough surface portion 10d. As a result, it is possible to suppress the total reflection of the converted light on the opposite surface 10b and prevent the intensity of the converted light radiated from the opposite surface 10b to the irradiation target to be insufficient. can.

また、本実施形態では、粗面部１０ｄを、反対面１０ｂの一部に形成した例を説明したが、粗面部１０ｄを、反対面１０ｂの全面に形成してもよい。また、粗面部１０ｄは、入射面１０ａよりも面祖度が高くなるように形成されたものであってもよいし、所定の方向に延びる複数のスリット溝によって形成されたものであってもよい。 Further, in the present embodiment, the example in which the rough surface portion 10d is formed on a part of the opposite surface 10b has been described, but the rough surface portion 10d may be formed on the entire surface of the opposite surface 10b. Further, the rough surface portion 10d may be formed so as to have a higher surface origin than the incident surface 10a, or may be formed by a plurality of slit grooves extending in a predetermined direction. ..

（他の実施形態）
本発明は上述の実施形態に限定されることなく、本発明の趣旨を逸脱しない範囲内で、以下のように種々変形可能である。 (Other embodiments)
The present invention is not limited to the above-described embodiment, and can be variously modified as follows without departing from the spirit of the present invention.

上述の実施形態では、波長変換部材１、１ａ～１ｄを、サンバイザー、ヘルメット、帽子のつば部に適用した例を説明したが、本発明に係る波長変換部材１の適用はこれに限定されない。例えば、日傘等に適用してもよい。また、第８実施形態で説明した照射装置２ように、所望の波長の光を野菜等の農作物へ照射するために、波長変換部材１、１ａ～１ｄを、農業用ビニールハウス等に適用してもよい。 In the above-described embodiment, an example in which the wavelength conversion members 1 and 1a to 1d are applied to the brim of a sun visor, a helmet, and a hat has been described, but the application of the wavelength conversion member 1 according to the present invention is not limited to this. For example, it may be applied to a parasol or the like. Further, as in the irradiation device 2 described in the eighth embodiment, the wavelength conversion members 1, 1a to 1d are applied to an agricultural greenhouse or the like in order to irradiate agricultural products such as vegetables with light having a desired wavelength. May be good.

上述の実施形態では、複数の波長変換材料として、第１～第４波長変換材料１１～１４の４つの波長変換材料を採用した例を説明したが、さらに他の波長変換材料を追加してもよい。この場合は、他の波長変換材料として、第１～第４波長変換材料１１～１４とは異なる吸収波長で、発光波長が基準波長Ｋλ±５０ｎｍ以内となっている波長変換部材を採用すればよい。 In the above-described embodiment, an example in which four wavelength conversion materials of the first to fourth wavelength conversion materials 11 to 14 are adopted as the plurality of wavelength conversion materials has been described, but even if other wavelength conversion materials are added. good. In this case, as another wavelength conversion material, a wavelength conversion member having an absorption wavelength different from that of the first to fourth wavelength conversion materials 11 to 14 and an emission wavelength within the reference wavelength Kλ ± 50 nm may be adopted. ..

さらに、波長変換材料は、上述の実施形態に開示されたものに限定されない。例えば、上述の実施形態と同様に赤色光を得たい場合には、波長変換材料として、ＣｅｌｌＴｒａｃｅ ＢＯＤＩＰＹ ＴＲ ｍｅｔｈｙｌ ｅｓｔｅｒを採用してもよい。この波長変換材料の吸収波長は５９８ｎｍであり、発光波長は６２５ｎｍである。 Furthermore, the wavelength conversion material is not limited to those disclosed in the above-described embodiment. For example, when it is desired to obtain red light as in the above-described embodiment, CellTrace BODIPY TR meshister may be adopted as the wavelength conversion material. The absorption wavelength of this wavelength conversion material is 598 nm, and the emission wavelength is 625 nm.

この他にも、波長変換材料として、ＢＡＳＦ社製のｌｕｍｏｇｅｎ（登録商標） Ｆ Ｒｅｄ ３０５を採用してもよい。この波長変換材料の吸収波長は５７８ｎｍであり、発光波長は６１３ｎｍである。 In addition, as the wavelength conversion material, lumogen (registered trademark) F Red 305 manufactured by BASF may be adopted. The absorption wavelength of this wavelength conversion material is 578 nm, and the emission wavelength is 613 nm.

また、波長変換材料として、赤外光を吸収して、所望の波長の光に変換するものを採用してもよい。例えば、Ｙ2Ｏ3（酸化イットリウム（ＩＩＩ））にＥｒ3+（エルビウムイオン）とＹｂ3+（イッテルビウムイオン）をドープした材料が知られており、１５５０ｎｍの波長の赤外光がＥｒ3+によって吸収、励起され、Ｙｂ3+にエネルギー移動が起こり、６６０ｎｍの赤色光を発光させることが出来る。 Further, as the wavelength conversion material, a material that absorbs infrared light and converts it into light having a desired wavelength may be adopted. For example, a material in which Y 2 O 3 (ytterbium oxide (III)) is doped with Er 3+ (erbium ion) and Yb 3+ (ytterbium ion) is known, and infrared light having a wavelength of 1550 nm is Er 3+ . It is absorbed and excited by Yb 3+ , causing energy transfer to Yb 3+, and can emit red light of 660 nm.

上述の実施形態では、波長変換材料が固定された基材１５のうち、波長変換材料側の面を、光を入射させる入射面１０ａとしたが、これに限定されない。すなわち、基材１５のうち、波長変換材料が固定されていない側の面を、入射面１０ａとしてもよい。さらに、上述の実施形態では、アクリル樹脂製の基材１５を採用した例を説明したが、基材１５はガラス製であってもよい。 In the above-described embodiment, of the base material 15 to which the wavelength conversion material is fixed, the surface on the wavelength conversion material side is the incident surface 10a on which light is incident, but the present invention is not limited to this. That is, the surface of the base material 15 on which the wavelength conversion material is not fixed may be the incident surface 10a. Further, in the above-described embodiment, the example in which the base material 15 made of acrylic resin is adopted has been described, but the base material 15 may be made of glass.

また、上記各実施形態に開示された手段は、実施可能な範囲で適宜組み合わせてもよい。例えば、第４実施形態で説明した赤外線反射材料１６あるいは第５実施形態で説明した赤外線吸収材料１６ａを、第２実施形態で説明した波長変換部材１ａあるいは第３実施形態で説明した波長変換部材１ｂに適用してもよい。 In addition, the means disclosed in each of the above embodiments may be appropriately combined to the extent feasible. For example, the infrared reflective material 16 described in the fourth embodiment or the infrared absorbing material 16a described in the fifth embodiment is used as the wavelength conversion member 1a described in the second embodiment or the wavelength conversion member 1b described in the third embodiment. May be applied to.

具体的には、赤外線反射材料１６あるいは赤外線吸収材料１６ａを、波長変換部材１ａの第１波長変換材料１１が塗布された第１基材１５ａと第２波長変換材料１２が塗布された第２基材１５ｂとの間に配置してもよい。また、波長変換部材１ｂの第１含有基材１５ｅと第２含有基材１５ｆとの間に配置してもよい。 Specifically, the infrared reflective material 16 or the infrared absorbing material 16a is coated with the first base material 15a coated with the first wavelength conversion material 11 of the wavelength conversion member 1a and the second base coated with the second wavelength conversion material 12. It may be arranged between the material 15b and the material 15b. Further, it may be arranged between the first-containing base material 15e and the second-containing base material 15f of the wavelength conversion member 1b.

例えば、第２実施形態で説明した波長変換部材１ａあるいは第３実施形態で説明した波長変換部材１ｂに端面１０ｃを形成し、これらの端面１０ｃに第６実施形態と同様の反射材１７を配置してもよい。 For example, an end face 10c is formed on the wavelength conversion member 1a described in the second embodiment or the wavelength conversion member 1b described in the third embodiment, and the same reflective material 17 as in the sixth embodiment is arranged on these end faces 10c. You may.

例えば、第８実施形態で説明した照射装置２あるいは第１０実施形態で説明したヘルメット３を、第２実施形態で説明した波長変換部材１ａ、第３実施形態で説明した波長変換部材１ｂあるいは第９実施形態で説明した波長変換部材１ｃで形成してもよい。 For example, the irradiation device 2 described in the eighth embodiment or the helmet 3 described in the tenth embodiment is used as the wavelength conversion member 1a described in the second embodiment, the wavelength conversion member 1b described in the third embodiment, or the ninth embodiment. It may be formed by the wavelength conversion member 1c described in the embodiment.

１、１ａ～１ｄ 波長変換部材
１１ 第１波長変換材料
１２ 第２波長変換材料
１３ 第３波長変換材料
１４ 第４波長変換材料
１５、１５ａ～１５ｄ 基材 1, 1a to 1d wavelength conversion member 11 1st wavelength conversion material 12 2nd wavelength conversion material 13 3rd wavelength conversion material 14 4th wavelength conversion material 15, 15a to 15d base material

Claims (16)

吸収波長が互いに異なる複数の波長変換材料を備え、
前記複数の波長変換材料の発光波長は、いずれも予め定めた基準波長Ｋλ±５０ｎｍ以内になっており、
前記基準波長Ｋλは、４５０ｎｍ～７００ｎｍの範囲内に設定されている波長変換部材。 Equipped with multiple wavelength conversion materials with different absorption wavelengths,
The emission wavelengths of the plurality of wavelength conversion materials are all within the predetermined reference wavelength Kλ ± 50 nm.
The reference wavelength Kλ is a wavelength conversion member set in the range of 450 nm to 700 nm . 前記複数の波長変換材料は、膜状に形成されており、互いに積層配置されている請求項１に記載の波長変換部材。 The wavelength conversion member according to claim 1, wherein the plurality of wavelength conversion materials are formed in a film shape and are arranged in layers with each other. 前記複数の波長変換材料は、粒状に形成されており、結合剤によって一体化されている請求項１の記載の波長変換部材。 The wavelength conversion member according to claim 1, wherein the plurality of wavelength conversion materials are formed in the form of granules and are integrated with a binder. 赤外線を反射する赤外線反射材料を備える請求項１ないし３のいずれか１つに記載の波長変換部材。 The wavelength conversion member according to any one of claims 1 to 3, further comprising an infrared reflective material that reflects infrared rays. 前記複数の波長変換材料に含まれる第１波長変換材料の吸収波長は、４００ｎｍ以下であり、
前記赤外線反射材料は、前記第１波長変換材料から照射される光に含まれる前記赤外線を反射するように配置されている請求項４に記載の波長変換部材。 The absorption wavelength of the first wavelength conversion material contained in the plurality of wavelength conversion materials is 400 nm or less.
The wavelength conversion member according to claim 4, wherein the infrared reflective material is arranged so as to reflect the infrared rays contained in the light emitted from the first wavelength conversion material. 赤外線を吸収する赤外線吸収材料を備える請求項１ないし３のいずれか１つに記載の波長変換部材。 The wavelength conversion member according to any one of claims 1 to 3, further comprising an infrared absorbing material that absorbs infrared rays. 前記複数の波長変換材料に含まれる第１波長変換材料の吸収波長は、４００ｎｍ以下であり、
前記赤外線吸収材料は、前記第１波長変換材料から照射される光に含まれる前記赤外線を吸収するように配置されている請求項６に記載の波長変換部材。 The absorption wavelength of the first wavelength conversion material contained in the plurality of wavelength conversion materials is 400 nm or less.
The wavelength conversion member according to claim 6, wherein the infrared absorbing material is arranged so as to absorb the infrared rays contained in the light emitted from the first wavelength conversion material. 前記赤外線は、波長が７００ｎｍ以上の光である請求項４ないし７のいずれか１つに記載の波長変換部材。 The wavelength conversion member according to any one of claims 4 to 7, wherein the infrared ray is light having a wavelength of 700 nm or more. さらに、前記複数の波長変換材料が固定される基材を備え、
前記基材は板状に形成されており、
前記複数の波長変換材料は、前記基材の一方の面に固定されており、
光を入射させる面を入射面と定義し、前記複数の波長変換材料が固定された前記基材のうち前記入射面の反対側の面を反対面と定義したときに、
前記入射面の端部と前記反対面の端部とを結ぶ端面は、前記入射面より前記反対面が拡がる側に傾斜しており、
前記端面には、光を反射させる反射材が配置されている請求項１ないし８のいずれか１つに記載の波長変換部材。 Further, a base material to which the plurality of wavelength conversion materials are fixed is provided.
The base material is formed in a plate shape and has a plate shape.
The plurality of wavelength conversion materials are fixed to one surface of the substrate, and the plurality of wavelength conversion materials are fixed to one surface.
When the surface on which light is incident is defined as the incident surface and the surface on the opposite side of the incident surface is defined as the opposite surface among the substrates to which the plurality of wavelength conversion materials are fixed.
The end surface connecting the end portion of the incident surface and the end portion of the opposite surface is inclined from the incident surface to the side where the opposite surface extends.
The wavelength conversion member according to any one of claims 1 to 8, wherein a reflective material that reflects light is arranged on the end face. さらに、前記複数の波長変換材料が固定される基材を備え、
前記基材は湾曲した板状に形成されており、
前記複数の波長変換材料は、前記基材の一方の面に固定されており、
光を入射させる面を入射面と定義し、前記複数の波長変換材料が固定された前記基材のうち前記入射面の反対側の面を反対面と定義したときに、
前記入射面の端部と前記反対面の端部とを結ぶ端面の少なくとも一部は、前記反対面の少なくとも一部と平行に配置されている請求項１ないし８のいずれか１つに記載の波長変換部材。 Further, a base material to which the plurality of wavelength conversion materials are fixed is provided.
The base material is formed in the shape of a curved plate.
The plurality of wavelength conversion materials are fixed to one surface of the substrate, and the plurality of wavelength conversion materials are fixed to one surface.
When the surface on which light is incident is defined as the incident surface and the surface on the opposite side of the incident surface is defined as the opposite surface among the substrates to which the plurality of wavelength conversion materials are fixed.
The invention according to any one of claims 1 to 8, wherein at least a part of the end surface connecting the end portion of the incident surface and the end portion of the opposite surface is arranged in parallel with at least a part of the opposite surface. Wavelength conversion member. さらに、前記複数の波長変換材料が固定される基材を備え、
前記基材は板状に形成されており、
前記複数の波長変換材料は、前記基材の一方の面に固定されており、
光を入射させる面を入射面と定義し、前記複数の波長変換材料が固定された前記基材のうち前記入射面の反対側の面を反対面と定義したときに、
さらに、前記入射面の端部と前記反対面の端部とを結ぶ端面から照射される光を集光する集光器と、
前記集光器にて集光された光の伝送路を形成する光ファイバーと、を備える請求項１ないし８のいずれか１つに記載の波長変換部材。 Further, a base material to which the plurality of wavelength conversion materials are fixed is provided.
The base material is formed in a plate shape and has a plate shape.
The plurality of wavelength conversion materials are fixed to one surface of the base material, and the plurality of wavelength conversion materials are fixed to one surface.
When the surface on which light is incident is defined as the incident surface and the surface on the opposite side of the incident surface is defined as the opposite surface among the substrates to which the plurality of wavelength conversion materials are fixed.
Further, a condenser that collects the light emitted from the end surface connecting the end portion of the incident surface and the end portion of the opposite surface, and
The wavelength conversion member according to any one of claims 1 to 8, further comprising an optical fiber forming a transmission path for light collected by the condenser. 前記複数の波長変換材料は、それぞれ異なる板状の基材に塗布されており、
前記板状の基材が、互いに積層配置されている請求項１に記載の波長変換部材。 The plurality of wavelength conversion materials are applied to different plate-shaped substrates .
The wavelength conversion member according to claim 1, wherein the plate-shaped base materials are laminated and arranged on each other. 前記複数の波長変換材料は、それぞれ異なる板状の基材に含有されており、
前記板状の基材が、互いに積層配置されている請求項１に記載の波長変換部材。 The plurality of wavelength conversion materials are contained in different plate-shaped substrates, and the plurality of wavelength conversion materials are contained in different plate-shaped substrates.
The wavelength conversion member according to claim 1, wherein the plate-shaped base materials are laminated and arranged on each other. 光を入射させる面を入射面と定義し、光を照射する面を照射面と定義したときに、
前記照射面の少なくとも一部には、前記入射面よりも表面粗さが粗い祖面部が形成されている請求項１ないし１３のいずれか１つに記載の波長変換部材。 When the surface on which light is incident is defined as the incident surface and the surface on which light is irradiated is defined as the irradiation surface,
The wavelength conversion member according to any one of claims 1 to 13, wherein a primary surface portion having a surface roughness coarser than that of the incident surface is formed on at least a part of the irradiation surface. 前記複数の波長変換材料は、繊維状の基材に含有されており、
前記繊維状の基材は、布状に織り込まれている請求項１に記載の波長変換部材。 The plurality of wavelength conversion materials are contained in a fibrous base material, and the plurality of wavelength conversion materials are contained in a fibrous base material.
The wavelength conversion member according to claim 1, wherein the fibrous base material is woven into a cloth shape. 前記複数の波長変換材料は、それぞれ異なる繊維状の基材に混合されており、
前記繊維状の基材は、互いに布状に織り込まれている請求項１に記載の波長変換部材。 The plurality of wavelength conversion materials are mixed with different fibrous substrates.
The wavelength conversion member according to claim 1, wherein the fibrous base materials are woven into each other in a cloth shape.
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