| Patent Number |
Title Of Patent |
Date Issued |
| 7456035 |
Flip chip light emitting diode devices having thinned or removed substrates |
November 25, 2008 |
| In a method for fabricating a flip-chip light emitting diode device, epitaxial layers (14, 114) are deposited on a growth substrate (16, 116) to produce an epitaxial wafer. A plurality of light emitting diode devices are fabricated on the epitaxial wafer. The epitaxial wafer is diced |
| 7453195 |
White lamps with enhanced color contrast |
November 18, 2008 |
| A lighting apparatus for emitting white light including a semiconductor light source emitting radiation with a peak at from about 250 nm to about 500 nm; a first phosphor having a peak emission between about 450 and 550 nm; and a second phosphor having a peak emission between about 615 a |
| 7442326 |
Red garnet phosphors for use in LEDs |
October 28, 2008 |
| Phosphor compositions having the formula L.sub.lM.sub.mA.sub.aG.sub.gP.sub.pQ.sub.qN.sub.nZ.sub.z:Ce.sup.3+, where L is at least one of Li, Na, K, Rb, and/or Cs; M is at least one of Be, Mg, Ca, Sr, Ba, Mn, Sn, Pb, and/or Zn; A is at least one of Bi, Sb, In, Sc, Y, and/or any of the |
| 7439668 |
Oxynitride phosphors for use in lighting applications having improved color quality |
October 21, 2008 |
| Disclosed are oxynitride phosphor compositions having the formula (RE.sub.1-xCe.sub.x).sub.3Al.sub.a-y-z-wSi.sub.yGa.sub.zSc.sub.wO.sub.12-- yN.sub.y, where RE is at least one of Lu, Gd, Y, and Tb, 0.001.ltoreq.x.ltoreq.0.10, 0.ltoreq.w.ltoreq.2, 0.001.ltoreq.y.ltoreq.0.50, 0.ltoreq.z |
| 7431479 |
LED lighting system with reflective board |
October 7, 2008 |
| A light emitting apparatus (8) includes one or more light emitting chips (10) that are disposed on a printed circuit board (12) and emit light predominantly in a wavelength range between about 400 nanometers and about 470 nanometers. The printed circuit board includes: (i) an electri |
| 7429186 |
Flexible high-power LED lighting system |
September 30, 2008 |
| An LED light engine includes a flexible electrical cable, a wire-socket assembly attached to the cable, and an LED module selectively attached to the wire-socket assembly. The wire-socket assembly includes at least two IDC terminals. The IDC terminal displaces the insulating covering of |
| 7425798 |
Intelligent light degradation sensing LED traffic signal |
September 16, 2008 |
| The inventive signal incorporates an intelligent diagnosis module inside a light emitting diode (LED) signal, such as an LED traffic signal. The inventive signal can self-extinguish or send a signal through its communication port at the end of its useful life when the LEDs are no lon |
| 7416434 |
IDC splice connector |
August 26, 2008 |
| A connector electrically connects corresponding conductors of at least first and second cables. The connector comprises a connecting portion into which the conductors of the first and second cables are inserted opposing one another to electrically connect corresponding conductors of |
| 7410275 |
Refractive optic for uniform illumination |
August 12, 2008 |
| An apparatus for distributing light from a light source includes a support and an optic supported by the support. The optic includes a truncated axially symmetric body. |
| 7405944 |
Printed circuit board retaining device |
July 29, 2008 |
| A retaining device holds a printed circuit board to a structure that has channels for receiving the retaining device. The retaining device includes a body having portions configured for receipt into the channels of the structure, flexible portions and protuberances protruding away fr |
| 7399105 |
Illuminated signage employing light emitting diodes |
July 15, 2008 |
| An illuminated sign (88) includes a flexible electrical power cord (100) including first and second parallel conductors (112, 114) surroundingly contained within an insulating sheath defining a constant separation distance between the parallel conductors (112, 114). A plurality of light |
| 7385481 |
Method and apparatus for tri-color rail signal system with control |
June 10, 2008 |
| A signaling control device apparatus (10) comprises at least one LED (20) having a light emitting surface (18). A sensor (24) is set to detect an external light load (16) directed to the light emitting surface (18) and generate a control signal indicative of a presence of the light load |
| 7385229 |
Flip-chip light emitting diode with a thermally stable multiple layer reflective p-type contact |
June 10, 2008 |
| A p-type contact (30) is disclosed for flip chip bonding and electrically contacting a p-type group III-nitride layer (28) of a group III-nitride flip chip light emitting diode die (10) with a bonding pad (60). A first palladium layer (42) is disposed on the p-type group III-nitride laye |
| 7358542 |
Red emitting phosphor materials for use in LED and LCD applications |
April 15, 2008 |
| Phosphor compositions including those having the formulas A.sub.2-xEu.sub.xW.sub.1-yMo.sub.yO.sub.6, where A is selected from Y, Gd, Lu, La, and combinations thereof; and where 0.5.ltoreq.x.ltoreq.1.0, 0.01.ltoreq.y.ltoreq.1.0; M.sub.mO.sub.nX, wherein M is selected from the group of |
| 7358539 |
Flip-chip light emitting diode with indium-tin-oxide based reflecting contacts |
April 15, 2008 |
| A flip chip light emitting diode die (12) includes a light-transmissive substrate (20) and a plurality of semiconductor layers (22) are disposed on the light-transmissive substrate (20). The semiconductor layers (22) define a light-generating p/n junction. An electrode (30) is formed on |
| 7355856 |
Method and apparatus for increasing natural convection efficiency in long heat sinks |
April 8, 2008 |
| An electrical apparatus that is cooled via natural convection includes an electrical component, a vertical heat dissipation surface in thermal communication with the electrical component, and a diverter extending from the heat dissipation surface. The diverter disrupts vertical airflow |
| 7333027 |
Power supply for LED signal |
February 19, 2008 |
| A power supply for a Light Emitting Diode (LED) traffic signal that controls the light intensity. The light intensity conforms to a predetermined pattern based on the input voltage root mean square value (V.sub.rms). The input voltage is changed by acting on the amplitude of the sine |
| 7329371 |
Red phosphor for LED based lighting |
February 12, 2008 |
| Disclosed are phosphor compositions having the formula (RE.sub.1-yCe.sub.y)Mg.sub.2-xLi.sub.xSi.sub.3-xP.sub.xO.sub.12, where RE is at least one of Sc, Lu, Gd, Y, and Tb, 0.0001<x<0.1 and 0.001<y<0.1. When combined with at least one additional phosphor and subjected to ra |
| 7327078 |
LED illumination device with layered phosphor pattern |
February 5, 2008 |
| A method of applying at least two phosphors to an LED, wherein a first phosphor material having a lower absorption, shorter luminescence decay time, and/or lower thermal quenching than a second phosphor material is positioned closer to the LED than the second phosphor. Such an arrang |
| 7321191 |
Phosphor blends for green traffic signals |
January 22, 2008 |
| There is provided a blue-green illumination system, including a semiconductor light emitter, and a luminescent material, wherein the system has an emission with CIE color coordinates located within an area of a of a pentagon on a CIE chromaticity diagram, whose corners have the follo |
| 7319246 |
Luminescent sheet covering for LEDs |
January 15, 2008 |
| A lighting apparatus comprising at least one light emitting diode is disposed on an interconnect board to emit ultraviolet or blue radiation. A polymeric layer including a luminophor is disposed about the lighting apparatus to convert at least a portion of the radiation emitted from the |
| 7285801 |
LED with series-connected monolithically integrated mesas |
October 23, 2007 |
| A light emitting semiconductor device die (10, 110, 210, 310) includes an electrically insulating substrate (12, 112). First and second spatially separated electrodes (60, 62, 260, 262, 360, 362) are disposed on the electrically insulating substrate. The first and second electrodes defin |
| 7274045 |
Borate phosphor materials for use in lighting applications |
September 25, 2007 |
| Boron containing phosphor compositions having the formulas (1) M.sub.3Ln.sub.2(BO.sub.3).sub.4 doped with at least one activator selected from the group of Eu.sup.2+, Mn.sup.2+, Pb.sup.2+, Ce.sup.3+, Eu.sup.3+, Tb.sup.3+, and Bi.sup.3+ where M is at least one of Mg, Ca, Sr, Ba, or Zn |
| 7273300 |
Curvilinear LED light source |
September 25, 2007 |
| An LED system that simulates bare or exposed neon in appearance. The curvilinear LED light source comprises a rigid, formable light guide having a generally circular cross-section and a flexible LED light engine. The light guide is made of a material or materials that can be heated a |
| 7262439 |
Charge compensated nitride phosphors for use in lighting applications |
August 28, 2007 |
| Disclosed are phosphor compositions having the formulas Ca.sub.1-a-bCe.sub.aEu.sub.bAl.sub.1+aSi.sub.1-aN.sub.3, where 0<a.ltoreq.0.2, 0.ltoreq.b.ltoreq.0.2; Ca.sub.1-c-dCe.sub.cEu.sub.dAl.sub.1-c(Mg,Zn).sub.cSiN.sub.3, where 0<c.ltoreq.0.2, 0.ltoreq.d.ltoreq.0.2; Ca.sub.1- |
| 7237925 |
Lighting apparatus for creating a substantially homogenous lit appearance |
July 3, 2007 |
| A lighting apparatus for creating a substantially homogenous lit appearance along the length of the apparatus is provided. The lighting apparatus includes an elongated envelope, an LED mounted in the elongated envelope, and a reflector. The elongated envelope includes a translucent p |
| 7237924 |
LED signal lamp |
July 3, 2007 |
| An LED signal using a novel optical element to control the light distribution of a small LED light source. Light emitted by the LEDs illuminates the optical element. The optical element has a plurality of clusters, shaped along the x-, y- and z-axis to control the light. After the li |
| 7224000 |
Light emitting diode component |
May 29, 2007 |
| A light emitting package (8, 8', 8'', 208, 408) includes a printed circuit board (10, 10', 10'', 210, 410) supporting at least one light emitting die (12, 12'', 14, 16, 212, 412). A light transmissive cover (60, 60', 60'', 260, 460) is disposed over the at least one light emitting die. T |
| 7217012 |
Illuminated signage employing light emitting diodes |
May 15, 2007 |
| An illuminated sign (88) includes a flexible electrical power cord (100) including first and second parallel conductors (112, 114) surroundingly contained within an insulating sheath defining a constant separation distance between the parallel conductors (112, 114). A plurality of light |
| 7210957 |
Flexible high-power LED lighting system |
May 1, 2007 |
| A string light engine includes a flexible power cord, a heat sink, an IDC terminal, a PCB, and an LED. The flexible power cord includes an electrical wire and an insulating material for the wire. The heat sink attaches to the power cord. The IDC terminal is inserted through the insul |
| 7204615 |
LED light with active cooling |
April 17, 2007 |
| An LED light assembly includes a housing, an LED disposed in the housing, a heat dissipating structure and a fluid current generator. The LED is in thermal communication with the heat dissipating structure and includes a flow path surface. The fluid current generator is disposed in the h |
| 7201497 |
Led lighting system with reflective board |
April 10, 2007 |
| A light emitting apparatus (8) includes one or more light emitting chips (10) that are disposed on a printed circuit board (12) and emit light predominantly in a wavelength range between about 400 nanometers and about 470 nanometers. The printed circuit board includes: (i) an electri |
