公开(公告)号：US20190031567A1

公开(公告)日：2019-01-31

申请号：US15661183

申请日：2017-07-27

申请人： Zhengbo Yu ,  Madis Raukas ,  Yi Zheng

发明人： Zhengbo Yu ,  Madis Raukas ,  Yi Zheng

IPC分类号： C04B35/597 ,  F21V9/16

摘要： Methods for producing wavelength converters are described. The methods include sintering a mixture consisting essentially of first particles and second particles to form a sintered article. In embodiments the first particles consist essentially of particles of β-SiAlON or precursors thereof, and the second particles consist essentially one or more sintering aids or precursors thereof. In embodiments the sintered article has a density that is greater than or equal to about 90% of a theoretical bulk density of the mixture, and is configured to convert primary light incident thereon to secondary light, wherein the secondary light exhibits a peak with a full width half maximum of greater than 0 to about 60 nanometers (nm) within a wavelength range of about 495 nm to about 600 nm.

公开(公告)号：US20170018689A1

公开(公告)日：2017-01-19

申请号：US15183064

申请日：2016-06-15

申请人： Zhengbo Yu

发明人： Zhengbo Yu

IPC分类号： H01L33/50 ,  C09K11/77

CPC分类号： C09K11/7734 ,  H01L33/501 ,  H01L33/504 ,  H01L33/505

摘要： There is herein described a composite ceramic wavelength converter having a first phase of an α-SiAlON:Eu phosphor and a second phase of a β-SiAlON:Eu phosphor. The converter may be used in a phosphor-converted light emitting diode to form a light source having a correlated color temperature (CCT) from 2000K to 4500K.

摘要翻译： 这里描述了具有α-SiAlON：Eu荧光体的第一相和β-SiAlON：Eu荧光体的第二相的复合陶瓷波长转换器。 该转换器可用于磷光体转换发光二极管，以形成具有2000K至4500K的相关色温（CCT）的光源。