LIGHT-EMITTING DEVICE WITH A LUMINESCENT MEDIUM, CORRESPONDING LIGHTING SYSTEM COMPRISING THE LIGHT-EMITTING DEVICE AND CORRESPONDING LUMINESCENT MEDIUM
    56.
    发明申请
    LIGHT-EMITTING DEVICE WITH A LUMINESCENT MEDIUM, CORRESPONDING LIGHTING SYSTEM COMPRISING THE LIGHT-EMITTING DEVICE AND CORRESPONDING LUMINESCENT MEDIUM 审中-公开
    具有发光介质的发光装置,包含发光装置的对应照明系统和对应的发光介质

    公开(公告)号:US20120069544A1

    公开(公告)日:2012-03-22

    申请号:US13258510

    申请日:2010-03-16

    摘要: The invention relates to a light emitting device (1) with high colour rendering comprising a wavelength converting member (2) with a luminescent medium for wavelength conversion of blue light and/or ultraviolet light (10) into red light and/or yellow and/or green light and a light source (3) emitting blue light (10) and/or ultraviolet light arranged to pump the luminescent medium, said luminescent medium essentially having a main phase of a solid state host material which is doped with Ce3+-ions. According to the invention the host material comprises ions of a further rare-earth material Ln, wherein the host material is selected such that the emission energy of the 5d-4f emission on Ce3+-ions is energetically higher than the absorption energy into an upper 4fn state of the further rare-earth material Ln, and wherein the light emission of wavelength converted light is caused by an intra-atomic 4fn-4fn transition within the ions of the further rare-earth material.The invention further relates to a corresponding lighting system comprising the light-emitting device and a corresponding luminescent medium.

    摘要翻译: 本发明涉及一种具有高显色性的发光装置(1),其包括具有用于将蓝光和/或紫外光(10)波长转换为红光和/或黄色和/或黄色的发光介质的波长转换构件(2) 或绿色光和发射蓝色光(10)的光源(3)和/或布置成泵送发光介质的紫外线,所述发光介质基本上具有掺杂有Ce 3+的固态主体材料的主相。 根据本发明,主体材料包括另外​​的稀土材料Ln的离子,其中选择主体材料使得Ce 3+上的5d-4f发射的发射能量在能量上高于进入上部4fn的吸收能量 进一步稀土材料Ln的状态,其中波长转换光的发光是由另外的稀土材料的离子内的原子内4fn-4fn跃迁引起的。 本发明还涉及包括发光装置和相应的发光介质的相应照明系统。