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    WAVELENGTH CONVERSION MEMBER AND LIGHT-EMITTING DEVICE
    1.
    发明申请
    WAVELENGTH CONVERSION MEMBER AND LIGHT-EMITTING DEVICE 审中-公开

    公开(公告)号：US20170342320A1

    公开(公告)日：2017-11-30

    申请号：US15534365

    申请日：2015-11-27

    申请人： SHIN-ETSU CHEMICAL CO., LTD.

    发明人： Toshihiro TSUMORI ,  Hajime NAKANO ,  Toshihiko TSUKATANI ,  Kazuhiro WATAYA ,  Takehisa MINOWA

    IPC分类号： C09K11/77 ,  C09K11/02 ,  C09K11/61 ,  H01L33/50

    CPC分类号： C09K11/7721 ,  C09K11/02 ,  C09K11/616 ,  C09K11/7774 ,  H01L33/501 ,  H01L33/502 ,  H01L33/504 ,  Y02B20/181

    摘要： Provided is a wavelength conversion member in which the following are dispersed in a thermoplastic resin: a LuYAG fluorescent material that is represented by (Y1-α-βLuαCeβ)3Al5O12 (in which α is a positive number between 0.3-0.8 inclusive and β is a positive number between 0.01-0.05 inclusive), that emits yellow-green light as a result of excitation by blue light, and that has a diffraction peak within a range in which the diffraction angle 2θ in X-ray diffraction by the Kα1 line of Cu is 52.9° to 53.2° inclusive; and a KSF fluorescent material that is represented by K2(Si1-xMnx)F6 (in which x is a positive number between 0.001 and 0.3 inclusive) and that emits red light as a result of excitation by blue light. The content of the KSF fluorescent material in the wavelength conversion member is 1 to 5 times the content of the LuYAG fluorescent material by mass ratio. The wavelength conversion member makes it possible to provide a light-emitting device that has small color deviation, that is suitable as a lighting device, that emits white light, and that has good color rendering properties in a color temperature range of 4,000-6,500K, i.e., the color temperature range from white to daylight color.

    LIGHTING APPARATUS
    3.
    发明申请
    LIGHTING APPARATUS 有权
    照明设备

    公开(公告)号：US20170009131A1

    公开(公告)日：2017-01-12

    申请号：US15122043

    申请日：2014-11-28

    申请人： SHIN-ETSU CHEMICAL CO., LTD.

    发明人： Kazuhiro WATAYA ,  Toshihiro TSUMORI ,  Toshihiko TSUKATANI ,  Takehisa MINOWA

    IPC分类号： C09K11/02 ,  F21V9/16 ,  F21V3/04 ,  C09K11/77

    CPC分类号： C09K11/025 ,  C09K11/616 ,  C09K11/617 ,  C09K11/7721 ,  C09K11/7774 ,  F21V3/08 ,  F21V9/30 ,  F21W2131/10 ,  F21W2131/101 ,  F21W2131/103 ,  F21Y2115/10

    摘要： This lighting apparatus is provided with a blue LED s chip having a maximum peak at a wavelength of 420-480 nm and a fluorescent material-containing resin layer disposed on the front of the blue LED chip in the light emission direction. The fluorescent material-containing resin layer is obtained by mixing and dispersing a LuAg fluorescent material, which is represented by the formula Lu3Al5O12:Ce3+ and in which the Ce activation rate is 2 mol. % or lower relative to Lu, and a double fluoride fluorescent material represented by the formula A2(B1−xMnx)F6 (in the formula, A is at least one type of element selected from among the group consisting of Li, Na, K and Cs, B is at least one type of element selected from among the group consisting of Si, Ti, Nb, Ge and Sn, and x is an integer that falls within the range 0.001≦x≦0.1) in a resin. The present invention is capable of achieving a higher sense of brightness, high visibility and a sense of brightness across a wide range under scotopic conditions or mesopic conditions with an emitted light color close to black body radiation.

    摘要翻译： 该照明装置具有在420〜480nm的波长下具有最大峰值的蓝色LED芯片和在发光方向上配置在蓝色LED芯片的前方的荧光材料树脂层。 含有荧光体的树脂层通过将由Lu3Al5O12：Ce3 +表示的LuAg荧光体混合分散，Ce活化率为2摩尔而得到。 （B1-xMnx）F6表示的双氟荧光材料（式中，A为选自由Li，Na，K和...组成的组中的至少一种元素， Cs，B是选自Si，Ti，Nb，Ge和Sn中的至少一种元素，x是落在0.001≤x≤0.1的范围内的整数）。 本发明能够在接近黑体辐射的发光光线的暗视情况或中等条件下，在较宽的范围内实现更高的亮度感，高可见度和亮度感。