leds (Total 3701 Patents Found)

Leds (3701 Patents Found)
Systems and apparatuses are disclosed having a 3×8 stacked RJ45 connector with an integrated LEDs option for a 1U product form factor to provide increased density of an RJ45 connector which utilizes open source and non-proprietary modular connectors in conformity with published standards. For example, in one embodimen...
Disclosed are various embodiments of methods, systems, devices and components nets for reducing power consumption in an LCD display that is backlit by LEDs. The various embodiments typically require the use of an array of backlighting LEDs 16 disposed beneath and configured to emit light in the direction of an overly...
The invention relates to a system for recording characteristic curves for a light-emitting diode arrangement ( 1 ) comprising at least one light-emitting diode ( 2 ). A control unit ( 4 ) is used to operate the light-emitting diode arrangement ( 1 ) and to record the diode current ( 8 ) and the voltage ( 9 ) on the lig...
A process is described for wavelength conversion of LED light using phosphors. LKD dies are tested for correlated color temperature (CCT), and binned according to their color emission. The LEDs (12) in a single bin are mounted on a single submount (24) to form an array of LEDs. Various thin sheets (51, 52, 53, 54) of a...
An LED and method for increasing the reliability of LEDs are provided. The LED contains a semiconductor die, a reflector, and a glass capping structure. The glass structure may be solid or formed from multiple layers of uniform or varying dimensions. The glass structure is coated with a phosphor that emits light of a d...
The lighting body consists of a number of LEDs (12) mounted on at least one board (14) and electrically interconnected, whereby the board is mounted between two plates (16,18), of which at least one has openings (20) corresponding. to the LEDs on the board. The board with the LEDs and the plates are joined together to ...
The device (1) has a base (10), a pyramid structure (20) and housing (50). The pyramid structure is located on the base and formed with three triangular side surfaces (21) and a base surface (22). The three triangular side surfaces and base surface are connected with one another. The base surface is turned away from th...
L'invention concerne un procédé de reproduction d'un spectre lumineux dit de référence (SR), à l'aide d'au moins une carte (1) support de LEDs. Ledit procédé comporte au moins les étapes suivantes : a) on allume un nombre donné de LEDs d'une même couleur, et on enregistre le spectre, dit ...
Un aparato de LED (10) que incluye (a) una placa de montaje (12), (b) una pluralidad de dispositivos LED (14) sobre esta, (c) un elemento de lente (20) sobre cada dispositivo de LED (14) y (d) una barrera de seguridad (30) posicionada sobre la placa de montaje (12) y que incluye una capa de metal (30m), teniendo la bar...
A full color display comprising a red, a green, and a blue light emitting diode, each light emitting diode including a light emitting region having at least one layer of single crystal rare earth material, the rare earth material in each of the light emitting diodes having at least one radiative transition, and the rar...
An electrical connector ( 1 ) has a metal shield ( 3 ), a main housing ( 5 ), a pair of light-emitting devices (LEDs, 6 ) received in the main housing, a subassembly ( 7 ) assembled to the main housing, a stacked Universal Serial Bus connector (USB) 4 , and a molded assembly ( 2 ) assembled to the subassembly. Each L...
An elongated luminaire for illuminating objects in front of the luminaire, comprising a plurality of side emitting LEDs ( 1 ) in only one straight array mounted on an elongated base plate ( 2 ). The base plate ( 2 ) carries two elongated reflectors ( 3 ) extending on either side of the array of LEDs ( 1 ) and parallel ...
A light source and method for making the same are disclosed. The light source includes a plurality of Segmented LEDs connected in parallel to a power bus and a controller. The power bus accepts a variable number of Segmented LEDs. The controller receives AC power and provides a power signal on the power bus. Each Segme...
A luminaire may include an input connection that receives AC line voltage, one or more chains of LEDs, and one or more drivers for driving each chain of LEDs, all within a housing, which may be in the form of a canopy. Each chain of LEDs may contain at least 36 LEDs connected in series. Each LED may have a power rating...
In a thin flash module for a camera, a rectangular array of LEDs is mounted on a single lead frame. The lead frame connects the LEDs in series. The LEDs are much smaller than conventional LEDs in a flash module. The LEDs may be in 5x3 array or a 4x3 array, for example. An array of reflective cups is molded over the lea...
A projector is provided, which includes a red substrate, a green substrate, a blue substrate, an X-cube, an electronic control element, a light guide element, a light valve element, and a projection lens. The red substrate, the green substrate, and the blue substrate respectively illuminate three surfaces of the X-cube...
A biotechnology detection device with optical fibers comprises a first optical fiber connected to a light source, and a prism having a first surface and a second surface. The first surface is connected to the first optical fiber and coated with an anti-reflective layer to be passed through by short-wavelength light; a ...
Methods of fabricating light emitting diodes using a degas process are described. For example, a method includes providing a partially formed group III-V material layer stack of an LED. Contaminants are removed from the partially formed group III-V material layer stack by a degas process. Formation of the group III-V m...
The invention relates to a phosphor element which is based on natural and/or synthetic flake-form substrates, such as mica, corundum, silica, glass, ZrO 2 or TiO 2 , and at least one phosphor, to the production thereof, and to the use thereof as LED conversion phosphor for white LEDs or so-called colour-on-demand appl...
Pilot Director Lights (PDLs) mounted on the exterior of a refueling tanker aircraft utilize visible light emitting diodes (LEDs) and infrared LEDs as light sources to provide visual information to the pilot of an approaching aircraft The PDLs are switchable between a visible mode that uses the visible LEDs and a covert...
인광물질 변환 LED(520)의 색채 정정. PWM 전류 구동 하에서 인광물질 변환 LED의 발산 스펙트럼의 색채 정정을 제공하는 시스템 및 방법이 개시된다. 구동 전류 신호에 대한 변조가 결정된다(810). 일정 크기 전류 신호가 결정된 변조에 기초하여 ...
L'invention concerne un circuit d'attaque de diode électroluminescente (« DEL ») alimenté en courant alternatif (« CA »), pour attaquer un ou plusieurs réseaux de DEL montées en série. Le circuit d'attaque de DEL comprend un premier transistor qui comprend un trajet collecteur-émetteur monté en s...
The present invention relates to a circuit arrangement for supplying power to, and for controlling, light-emitting diodes for illuminating, and to a method therefor. The invention provides a driver circuit for providing an operating current for operating at least one light-emitting diode, wherein the operating current ...
In various embodiments, lighting systems include an electrically insulating carrier having a plurality of conductive elements disposed thereon, a light-emitting array, and at least one power source. The light-emitting array is disposed over the carrier and includes a plurality of light-emitting strings, each light-emit...
An electronic ballast may include: a rectifier; a first unit including a first cascade of LEDs and a first storage capacitor connected in parallel with the first cascade; a second unit including at least a second cascade of LEDs and a second storage capacitor connected in parallel with the second cascade; wherein the s...
Various circuits are described herein where a series transistor used to control current through a string of LEDs, driven by a high voltage, is not subjected to the high voltage when the transistor is turned off pursuant to a PWM signal. To avoid the transistor experiencing the high voltage, the HV regulator is disabled...
The electronic timer relay has a decade switch (3), for setting the delay time and an opto-electronic digital display (4) adjacent the decade switch (3), together with a scale line (6) comprising a row of LED's (5). These are operated in synchronism with the timer operation, one after the other, to provide an analo...
Método para controlar al menos un componente (15) emisor de luz, tal como un diodo emisor de luz (LED), que tiene una tensión (Vf(max)) y una corriente (If(max)) operativas máximas a las cuales el componente puede activarse con seguriadad, cuyo método comprende: - aplicar una tensión de suministro al componente (1...
A broad bandwidth light source including: a solid state light emitting device that generates short wavelength light; and quantum dot material and phosphor material that are each irradiated by some of the short wavelength light. The short wavelength light has a spectrum with a first peak wavelength shorter than about 50...
An integrated device for adjusting dimming of LEDs includes a law memory storing a switching control law for LEDs. A modulated-clock generator coupled to an output of the law memory generates a modulated-clock signal having a parameter that varies according to the stored switching control law. A count stage coupled to ...
An offline control circuit of LED driver controls the maximum voltage and the maximum current of a plurality of LEDs. A switching circuit generates a plurality of LED currents through a transformer. A voltage-feedback circuit generates a voltage loop signal in response to the voltage across the LEDs. A current-feedback...
Organic light emitting devices are described wherein the emissive layer comprises a host material containing an emissive molecule, which molecule is adapted to luminesce when a voltage is applied across the heterostructure, and the emissive molecule is selected from the group of phosphorescent organometallic complexes,...
An LED pump light with multiple phosphors is described. LEDs emitting radiation at violet and/or ultraviolet wavelengths are used to pump phosphor materials that emit other colors. The LEDs operating in different wavelength ranges are arranged to reduce light re-absorption and improve light output efficiency....