Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
OPTICAL WAVELENGTH CONVERSION DEVICE
To provide an optical wavelength conversion device capable of performing light emission at high efficiency while suppressing a temperature rise of an optical wavelength conversion member.SOLUTION: An optical wavelength conversion member 5 is an annular member arranged so as to surround a periphery of a center axis O orthogonal to a surface of a heat radiation member 3. Thereby when a laser beam is applied to the optical wavelength conversion member 5 in parallel with the center axis O in a state that an optical wavelength conversion device 1 is rotated around the center axis O, irradiation positions of the laser beam are always changed, so that a temperature of a specific position of the optical wavelength conversion member 5 is not easily increased. Moreover in the optical wavelength conversion member 5, a crystal particle of a translucent phase has a composition of AlO, a crystal particle of a fluorescent phase has a composition expressed by a chemical formula ABO:Ce and an element A and an element B are constituted of elements of at least one kind selected from the element groups. Consequently temperature extinction that the optical wavelength conversion member 5 does not emit fluorescent light can be suppressed and high luminous efficiency can be realized.SELECTED DRAWING: Figure 1
【課題】光波長変換部材の温度上昇を抑制して、高い効率にて発光が可能な光波長変換装置を提供すること。【解決手段】光波長変換部材５は、放熱部材３の表面と直交する中心軸Ｏの周りを囲むように配置された環状の部材である。従って、光波長変換装置１を中心軸Ｏを中心にして回転させた状態で、光波長変換部材５に中心軸Ｏと平行にレーザー光を照射した場合には、レーザー光の照射位置が絶えず変化するので、光波長変換部材５の特定の箇所の温度が上昇しにくい。しかも、波長変換部材５は、透光相の結晶粒子はＡｌ２Ｏ３の組成を有し、蛍光相の結晶粒子は化学式Ａ３Ｂ５Ｏ１２：Ｃｅで表される組成を有し、Ａ元素及びＢ元素は、前記元素群から選択される少なくとも１種の元素から構成されている。よって、光波長変換部材５が蛍光を発しなくなる温度消光を抑制でき、高い発光効率を実現できる。【選択図】図１
OPTICAL WAVELENGTH CONVERSION DEVICE
To provide an optical wavelength conversion device capable of performing light emission at high efficiency while suppressing a temperature rise of an optical wavelength conversion member.SOLUTION: An optical wavelength conversion member 5 is an annular member arranged so as to surround a periphery of a center axis O orthogonal to a surface of a heat radiation member 3. Thereby when a laser beam is applied to the optical wavelength conversion member 5 in parallel with the center axis O in a state that an optical wavelength conversion device 1 is rotated around the center axis O, irradiation positions of the laser beam are always changed, so that a temperature of a specific position of the optical wavelength conversion member 5 is not easily increased. Moreover in the optical wavelength conversion member 5, a crystal particle of a translucent phase has a composition of AlO, a crystal particle of a fluorescent phase has a composition expressed by a chemical formula ABO:Ce and an element A and an element B are constituted of elements of at least one kind selected from the element groups. Consequently temperature extinction that the optical wavelength conversion member 5 does not emit fluorescent light can be suppressed and high luminous efficiency can be realized.SELECTED DRAWING: Figure 1
【課題】光波長変換部材の温度上昇を抑制して、高い効率にて発光が可能な光波長変換装置を提供すること。【解決手段】光波長変換部材５は、放熱部材３の表面と直交する中心軸Ｏの周りを囲むように配置された環状の部材である。従って、光波長変換装置１を中心軸Ｏを中心にして回転させた状態で、光波長変換部材５に中心軸Ｏと平行にレーザー光を照射した場合には、レーザー光の照射位置が絶えず変化するので、光波長変換部材５の特定の箇所の温度が上昇しにくい。しかも、波長変換部材５は、透光相の結晶粒子はＡｌ２Ｏ３の組成を有し、蛍光相の結晶粒子は化学式Ａ３Ｂ５Ｏ１２：Ｃｅで表される組成を有し、Ａ元素及びＢ元素は、前記元素群から選択される少なくとも１種の元素から構成されている。よって、光波長変換部材５が蛍光を発しなくなる温度消光を抑制でき、高い発光効率を実現できる。【選択図】図１
OPTICAL WAVELENGTH CONVERSION DEVICE
光波長変換装置
SHIMURA YUKI (Autor:in) / KATSU YUSUKE (Autor:in) / ITO TSUNEYUKI (Autor:in) / TAKAHISA SHOHEI (Autor:in) / SAKA SHINJI (Autor:in) / MITSUOKA TAKESHI (Autor:in)
26.03.2020
Patent
Elektronische Ressource
Japanisch
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