公开(公告)号：US20050233485A1

公开(公告)日：2005-10-20

申请号：US11144084

申请日：2005-06-06

申请人： Alexander Shishov ,  Dmitry Agafonov ,  Nikolai Scherakov ,  Vladimir Abramov ,  Valentin Scherbakov

发明人： Alexander Shishov ,  Dmitry Agafonov ,  Nikolai Scherakov ,  Vladimir Abramov ,  Valentin Scherbakov

IPC分类号： H01L33/50 ,  H01L33/48 ,  H01L33/52 ,  H01L33/58 ,  H01L21/00

CPC分类号： H01L33/501 ,  H01L33/483 ,  H01L33/52 ,  H01L33/58 ,  H01L2224/48091 ,  H01L2224/48471 ,  H01L2224/73265 ,  H01L2933/0041 ,  H01L2924/00014

摘要： Light emitting diodes are prepared with specialized packages which provide a dosing feature with respect to a phosphor wavelength converting medium. Elements of the device package form a specially shaped cavity when coupled together. The shape and size of the cavity operates to control the dosing of phosphor spiked medium of soft gel. The gel fills the cavity such that light emitted from a semiconductor die is exposed to a similar cross section independent of the exact direction of light propagation. In this way, ‘white’ LED systems are formed from blue emitting diodes as highly controlled phosphor dosing permits precise amounts of blue light to be converted to yellow light without problems with angular uniformity observed in competing technologies.

摘要翻译： 用专门的封装制备发光二极管，该封装提供相对于磷光体波长转换介质的配量特征。 耦合在一起时，器件封装的元件形成特殊形状的空腔。 空腔的形状和尺寸用于控制软凝胶的磷掺杂介质的计量。 凝胶填充空腔，使得从半导体管芯发射的光暴露于与光传播的精确方向无关的类似横截面。 以这种方式，“白色”LED系统由蓝色发光二极管形成，因为高度受控的磷光体投射允许将精确量的蓝光转换成黄色光，而不会在竞争技术中观察到角均匀性。