公开(公告)号：EP1992050A1

公开(公告)日：2008-11-19

申请号：EP07748987.0

申请日：2007-01-17

申请人： CREE, INC.

发明人： IBBETSON, James, P. ,  KELLER, Bernd, P. ,  MISHRA, Umesh, K.

IPC分类号： H01S5/042 ,  H01L33/00

CPC分类号： H01L33/04 ,  H01L33/0016 ,  H01L33/08 ,  H01L33/32

摘要： An LED made from a wide band gap semiconductor material and having a low resistance p-type confinement layer with a tunnel junction in a wide band gap semiconductor device is disclosed. A dissimilar material is placed at the tunnel junction where the material generates a natural dipole. This natural dipole is used to form a junction having a tunnel width that is smaller than such a width would be without the dissimilar material. A low resistance p-type confinement layer having a tunnel junction in a wide band gap semiconductor device may be fabricated by generating a polarization charge in the junction of the confinement layer, and forming a tunnel width in the junction that is smaller than the width would be without the polarization charge. Tunneling through the tunnel junction in the confinement layer may be enhanced by the addition of impurities within the junction. These impurities may form band gap states in the junction.

公开(公告)号：EP2283526B1

公开(公告)日：2019-12-11

申请号：EP09728238.8

申请日：2009-03-31

申请人： Cree, Inc.

发明人： CHITNIS, Ashay ,  EDMOND, John ,  BRITT, Jeffrey, C. ,  KELLER, Bernd, P. ,  EMERSON, David, T. ,  BERGMANN, Michael, John ,  CABALU, Jasper, S.

IPC分类号： H01L33/50 ,  H01L33/00

公开(公告)号：EP2671213A1

公开(公告)日：2013-12-11

申请号：EP12701823.2

申请日：2012-01-24

申请人： Cree, Inc.

发明人： LOWES, Theodore, D. ,  TARSA, Eric, J. ,  KELLER, Bernd, P. ,  EMERSON, David, T.

IPC分类号： G09F9/33

CPC分类号： G09F9/33 ,  G09F9/3026 ,  H01L25/0753 ,  H01L33/54 ,  H01L2924/0002 ,  H01L2924/00

摘要： An LED component includes, according to a first embodiment, a monolithic substrate, an array of LED chips disposed on a surface of the substrate, and an optical lens overlying the LED chips and having a lens base attached to the substrate, where the LED chips are positioned to provide a peak emission shifted from a perpendicular centerline of the lens base. The LED component includes, according to a second embodiment, a monolithic substrate, an array of LED chips disposed on a surface of the substrate, and an array of optical lenses, each optical lens overlying at least one of the LED chips and having a lens base attached to the substrate, where at least one of the LED chips is positioned to provide a peak emission shifted from a perpendicular centerline of the respective lens base.

公开(公告)号：EP2705543A1

公开(公告)日：2014-03-12

申请号：EP12718541.1

申请日：2012-04-23

申请人： Cree, Inc.

发明人： TARSA, Eric, J. ,  LOWES, Theodore, D. ,  KELLER, Bernd, P.

IPC分类号： H01L33/20

CPC分类号： H01L33/20 ,  H01L24/32 ,  H01L2924/12041 ,  H01L2924/00

摘要： A light emitting diode (LED) for achieving an asymmetric light output includes a multilayered structure comprising a p-n junction, where at least one layer of the multilayered structure comprises a surface configured to provide a peak emission in a direction away from a normal to a mounting surface, the surface being a top or bottom surface of the layer.

公开(公告)号：EP2283526A2

公开(公告)日：2011-02-16

申请号：EP09728238.8

申请日：2009-03-31

申请人： Cree, Inc.

发明人： CHITNIS, Ashay ,  EDMOND, John ,  BRITT, Jeffrey, C. ,  KELLER, Bernd, P. ,  EMERSON, David, T. ,  BERGMANN, Michael, John ,  CABALU, Jasper, S.

IPC分类号： H01L33/00

CPC分类号： H01L33/508 ,  H01L33/0095 ,  H01L2224/13 ,  H01L2933/0041 ,  Y10T408/47

摘要： A method for fabricating light emitting diode (LED) chips comprising providing a plurality of LEDs, typically on a wafer, and coating the LEDs with a conversion material so that at least some light from the LEDs passes through the conversion material and is converted. The light emission from the LED chips comprises light from the conversion material, typically in combination with LED light. The emission characteristics of at least some of the LED chips is measured and at least some of the conversion material over the LEDs is removed to alter the emission characteristics of the LED chips. The invention is particularly applicable to fabricating LED chips on a wafer where the LED chips have light emission characteristics that are within a range of target emission characteristics. This target range can fall within an emission region on a CIE curve to reduce the need for binning of the LEDs from the wafer. The emission characteristics of the LED chips in the wafer can be tuned to the desired range by micro-machining the conversion material over the LEDs.

公开(公告)号：EP2697837A2

公开(公告)日：2014-02-19

申请号：EP12861832.9

申请日：2012-04-05

申请人： Cree, Inc.

发明人： VAN DE VEN, Antony, Paul ,  NEGLEY, Gerald, H. ,  LETOQUIN, Ronan, P ,  KELLER, Bernd, P. ,  IBBETSON, James

IPC分类号： H01L33/50 ,  H01L33/48

CPC分类号： H01J1/63 ,  H01L25/0753 ,  H01L33/50 ,  H01L2924/0002 ,  H05B33/0857 ,  H01L2924/00

摘要： A green-shifted red solid state lighting device includes at least one green solid state light emitter arranged to stimulate emissions from at least one red lumiphor, arranged in combination with at least one blue solid state light emitter. Such device may be devoid of any yellow lumiphor arranged to be stimulated by a blue solid state light emitter. A green shifted red plus blue (GSR+B) lighting device exhibits reduced Stokes Shift losses as compared to a blue shifted yellow plus red (BSY+R) lighting device, with comparable color rendering performance and similar efficiency, enhanced color stability over a range of operating temperatures, and enhanced color rendering performance at higher correlated color temperatures. Additional solid state emitters and/or lumiphors may be provided.

公开(公告)号：EP2158292B1

公开(公告)日：2012-02-15

申请号：EP08754201.5

申请日：2008-05-02

申请人： Cree, Inc.

发明人： LETOQUIN, Ronan, P. ,  MEDENDORP, Nicholas, W., Jr. ,  KELLER, Bernd, P. ,  CHAKRABORTY, Arpan

IPC分类号： C09K11/79 ,  C09K11/64

CPC分类号： C09K11/7774 ,  C09K11/0883 ,  C09K11/7715 ,  C09K11/7734 ,  H01L33/20 ,  H01L33/502 ,  H01L33/505 ,  H01L2224/48091 ,  H01L2224/73265 ,  H05B33/14 ,  H01L2924/00014

摘要： Solid state light emitting devices include a solid state light emitting die and a light conversion structure. The light conversion structure may include a single crystal phosphor and may be on a light emitting surface of the solid state light emitting die. The light conversion structure may be attached to the light emitting surface of the solid state light emitting die via an adhesive layer. The light conversion structure may also be directly on a light emitting surface of the solid state light emitting die. Related methods are also disclosed.

公开(公告)号：EP2981857A1

公开(公告)日：2016-02-10

申请号：EP14877565.3

申请日：2014-01-30

申请人： Cree, Inc.

发明人： YUAN, Zongjie ,  WILCOX, Kurt, S. ,  TARSA, Eric, J. ,  ROL, Fabien, Jean-daniel ,  IBBETSON, James ,  KELLER, Bernd, P. ,  MEDENDORP, Nicholas, W.

IPC分类号： G02B6/10

CPC分类号： G02B6/0021 ,  F21K9/23 ,  F21K9/61 ,  F21S8/033 ,  F21S8/04 ,  F21S8/06 ,  F21V21/112 ,  F21V23/0442 ,  F21V29/763 ,  F21Y2107/30 ,  F21Y2115/10 ,  G02B6/0036

摘要： An optical waveguide includes a body of optically transmissive material having a width substantially greater than an overall thickness thereof. The body of material has a first side, a second side opposite the first side, and a plurality of interior bores extending between the first and second sides each adapted to receive a light emitting diode. Extraction features are disposed on the second side and the extraction features direct light out of at least the first side and at least one extraction feature forms a taper disposed at an outer portion of the body.

摘要翻译： 一种光波导包括一个透光材料体，其宽度明显大于其整个厚度。 材料主体具有第一侧，与第一侧相对的第二侧以及在第一侧和第二侧之间延伸的多个内孔，每个内孔适于接收发光二极管。 提取特征设置在第二侧上，并且提取特征将光引导到至少第一侧之外，并且至少一个提取特征形成设置在本体的外部的锥形。

公开(公告)号：EP2951626A1

公开(公告)日：2015-12-09

申请号：EP14745615.6

申请日：2014-01-30

申请人： Cree, Inc.

发明人： KELLER, Bernd, P. ,  TARSA, Eric, J. ,  YUAN, Zongjie ,  WILCOX, Kurt, S.

IPC分类号： G02B6/26

CPC分类号： G02B6/0021 ,  F21K9/23 ,  F21K9/61 ,  F21S8/033 ,  F21S8/04 ,  F21S8/06 ,  F21V21/112 ,  F21V23/0442 ,  F21V29/763 ,  F21Y2107/30 ,  F21Y2115/10 ,  G02B6/0036

摘要： According to one aspect, a waveguide includes a waveguide body having a coupling cavity extending therethrough and a plug member having a first portion disposed in the coupling cavity. The plug member includes an outer surface substantially conforming to the coupling cavity and a second portion extending from the first portion into the coupling cavity and a reflective surface adapted to direct light in the coupling cavity into the waveguide body.

公开(公告)号：EP2951500A2

公开(公告)日：2015-12-09

申请号：EP14745897.0

申请日：2014-01-30

申请人： Cree, Inc.

发明人： TARSA, Eric, J. ,  BENJAMIN, Hormoz ,  KELLER, Bernd, P. ,  WILCOX, Kurt, S. ,  YUAN, Zongjie

IPC分类号： F21V8/00

CPC分类号： G02B6/0021 ,  F21K9/23 ,  F21K9/61 ,  F21S8/033 ,  F21S8/04 ,  F21S8/06 ,  F21V21/112 ,  F21V23/0442 ,  F21V29/763 ,  F21Y2107/30 ,  F21Y2115/10 ,  G02B6/0036

摘要： A luminaire having a waveguide suspended beneath a mounting element, the waveguide has a first surface proximal to the mounting element, a second surface distal to the mounting element, and an edge between the first and the second surfaces. At least one cavity extends into the waveguide from the first surface to the second surface. A LED component is coupled to the waveguide so as to emit light into the cavity. LED support structures are also disclosed.

摘要翻译： 具有悬挂的安装元件之下的波导的照明装置，该波导具有一第一表面邻近所述安装元件，第二表面远离安装元件，以及在第一和第二表面之间的边缘。 至少一个腔体延伸到从所述第一表面到第二表面的波导。 一种LED组件被耦合到波导，从而光发射到腔体。 LED支架结构使游离缺失盘。