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公开(公告)号：US20170342320A1
公开(公告)日：2017-11-30
申请号：US15534365
申请日：2015-11-27
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.
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2.发明申请METHODS FOR PREPARING PHOSPHOR PRECURSOR AND PHOSPHOR, AND WAVELENGTH CONVERTER 审中-公开磷光体前体和磷光体以及波长转换器的制备方法公开(公告)号：US20140027674A1
公开(公告)日：2014-01-30
申请号：US13948777
申请日：2013-07-23
发明人： Hirofumi KAWAZOE , Kazuhiro WATAYA
CPC分类号： C09K11/025 , C09K11/7769 , C09K11/7774
摘要： Intended is a phosphor of the formula: (A1-xBx)3C5O12 wherein A is Y, Gd, and/or Lu, B is Ce and/or Tb, C is Al and/or Ga, and 0.002≦x≦0.2. A phosphor precursor is prepared by suspending gamma-alumina particles having a specific surface area of at least 50 m2/g and dissolving a rare earth element salt in water to form a suspended aqueous to solution, adding urea thereto, heating the solution to form mixed fine particles of gamma-alumina and rare earth element salt, separating, and firing the mixed fine particles at 600-1,000° C. to form mixed oxide fine particles of rare earth oxide and alumina.
摘要翻译： 预期是下式的荧光体：（A1-xBx）3C5O12其中A是Y，Gd和/或Lu，B是Ce和/或Tb，C是Al和/或Ga，和0.002 @ x @ 0.2。 通过将具有至少50m 2 / g的比表面积的γ-氧化铝颗粒悬浮并将稀土元素盐溶解在水中以形成悬浮的水溶液，加入尿素，加热溶液以形成混合物来制备荧光体前体 γ-氧化铝和稀土元素盐的微粒子，在600-1,000℃下分离和烧结混合的细颗粒，以形成稀土氧化物和氧化铝的混合氧化物细颗粒。
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公开(公告)号：US20170336040A1
公开(公告)日：2017-11-23
申请号：US15534125
申请日：2015-12-02
IPC分类号： F21S8/10 , H01L33/50 , F21Y2115/10
CPC分类号： F21S43/00 , F21S41/12 , F21S41/141 , F21S41/143 , F21S41/176 , F21S41/30 , F21S45/47 , F21Y2115/10 , H01L33/501 , H01L33/502 , H01L33/504
摘要： This LED light source for a vehicle-mounted headlight is provided with: a blue LED that emits blue light having a dominant wavelength of 430-470 nm; and a fluorescent material that is arranged forward in the light emission direction of the blue light and that performs wavelength conversion of the blue light. The main fluorescent material constituting the fluorescent material is a celium-activated lutetium/aluminum/garnet fluorescent material represented by Lu3Al5O12:Ce. The LED light source for a vehicle-mounted headlight emits pseudo-white light that has a color temperature of 6,000 K or less and that is unlikely to decrease in visibility even during bad weather. The LED light source for a vehicle-mounted headlight has characteristics such as a wide lighting range and excellent visibility in the peripheral area of the visual field (the peripheral visual field) and can thus contribute to accident prevention and road traffic safety.
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公开(公告)号：US20170009131A1
公开(公告)日：2017-01-12
申请号：US15122043
申请日：2014-11-28
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。
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