Abstract: A light-emitting diode (LED) filament with a heat-dissipating structure includes multiple LED chips, multiple conductive carriers and a package layer. Each conductive carrier takes the form of a metal sheet and the multiple conductive carriers are spaced apart from each other. Each LED chip is commonly carried by and is electrically connected to two of the multiple conductive carriers adjacent to the LED chip. The package layer covers the multiple LED chips and the multiple conductive carriers with two lateral edge portions of each conductive carrier exposed from the package layer. The LED filament is mounted inside a light bulb. Because the multiple conductive carriers are partially exposed from the package layer, heat generated by the multiple LED chips can be dissipated to an ambient environment without affecting lighting efficiency and light output as a result of accumulated heat.

Abstract: A light-emitting diode (LED) light source includes a plurality of electricity-conducting holding elements, and each electricity-conducting holding element is made of a thin metal sheet. The bendable LED light source increases installation of sufficient number of LED dies by lengthening the length of the LED light source. The LED light source is bent to form a spring-like helical structure and then is placed inside a lamp cover. The helical LED light source is fastened on a T-shaped element by a plurality of fastening elements and the T-shaped element is fixed on an insulated holder. Accordingly, a bulb-type LED lamp is implemented.

Abstract: A heat-dissipating structure for an LED lamp has a lamp cover, and a power conversion device and a ceramic substrate mounted inside the lamp cover. The lamp cover has multiple heat-dissipating holes and multiple mounting ears. Each mounting ear is formed on an edge of one of the heat-dissipating holes and is bent inwardly with the heat-dissipating hole uncovered. The ceramic substrate is mounted on the mounting ears. The ceramic substrate has multiple LEDs mounted thereon, absorbs heat generated when the LEDs emit light and conducts the heat to the lamp cover through the mounting ears. The heat generated when the LEDs are lit and the power conversion converts a mains power is transferred to a heat convection space between the ceramic substrate and the lamp cover, and is further dissipated to an ambient environment, thereby achieving fast heat dissipation and a light LED lamp without an additional heat sink thereon.

Abstract: The multi-tubular LED light bulb has a seat having a power plug, multiple glass tubes mounted on the seat, multiple multi-directional lighting LED strips respectively mounted inside the glass tubes and an AC to DC converting circuit board mounted inside the seat and connected to the power plug to obtain AC power and converting the AC power to DC power. The multi-directional lighting LED strips are electronically connected to the DC power source from the AC to DC converting circuit in parallel. Since the LED light bulb has multiple multi-directional lighting LED strips, different directional sightings and even brightness are provided. Further, heat from the LED strip is easily and quickly transmitted to the sidewall of the glass tube to extend the lifetime of the LED light bulb, since the multi-directional lighting LED strips are close to a sidewall of the corresponding glass tube.

Abstract: A light source is provided including a heat sink and a printed circuit board (PCB) with a driver and lamps disposed in the central cavity of the heat sink. Each lamp is a semi-spherical solid state lamp, and multiple optical structures in operable registration with lamps. The PCB may further have two heat conducting strips proximate opposing edges of the PCB. The optical structures emit substantially shadowless, substantially homogeneous, and substantially monochromatic light. The optical structure includes an optical element for each lamp that substantially collimates the lamp's light and an optical element receiving a portion of the substantially collimated beam and provides multiple optical images of the collimated beam with a focal point that is practically infinite.

Abstract: The invention provides systems and methods for providing illumination. A lighting unit may have a support structure, and one or more light emitting elements supported by a circuit board contacting the support structure. A first optical element and a second optical element may be provided. A remote luminescent material may be provided on one or more optical elements. Light emitting elements configured to excite the luminescent material such as highly efficient light emitting diodes may be directed towards the luminescent material. The support structure may be a heat dissipating element, which may conduct heat from a heat source to a surface of the support structure. The heat dissipating element may have a passageway permitting the formation of a convection path to dissipate heat from the support structure. Such lighting units may be used to replace conventional fluorescent light tubes or other lighting devices, or may be provided as standalone lighting units.

Abstract: The invention provides systems and methods for providing illumination. A lighting unit may have a support structure, and one or more light emitting elements supported by a circuit board contacting the support structure. A first optical element and a second optical element may be provided. A remote luminescent material may be provided on one or more optical elements. Light emitting elements configured to excite the luminescent material such as highly efficient light emitting diodes may be directed towards the luminescent material. The support structure may be a heat dissipating element, which may conduct heat from a heat source to a surface of the support structure. The heat dissipating element may have a passageway permitting the formation of a convection path to dissipate heat from the support structure. Such lighting units may be used to replace conventional fluorescent light tubes or other lighting devices, or may be provided as standalone lighting units.

Abstract: An LED lighting device has a cap, a circuit board assembly and a bulb envelope. The circuit board assembly is electrically mounted on the cap and has multiple circuit boards intersecting to each other to form a light frame with a crisscross section, and has multiple LEDs mounted on the circuit boards. The circuit board assembly may further have a top circuit board mounted on one end of the light frame. The top circuit board also has multiple LEDs mounted thereon. Sine the circuit boards intersect to each other to constitute the light frame, the light frame provides a large surface area for mounting a lot number of LEDs. Therefore, the LED lighting device is able to provide a wide angle illumination with enhanced lighting intensity.

Abstract: A constant current LED lamp is provided with a linear driver circuit for driving multiple light emitting diodes (LEDs), or LED packages including multiple LED chips, connected in series. The driver circuit includes a rectifier circuit, a filter circuit, a stable voltage circuit, and a constant current circuit. The driver circuit allows the aggregate forward voltage drop of all the LEDs connected in series to approach the rectified input voltage to efficiently utilize the AC power from the mains.

Abstract: The invention provides systems and methods for providing illumination. A lighting unit may have a support structure, and one or more light emitting elements supported by a circuit board contacting the support structure. A first optical element and a second optical element may be provided. A remote luminescent material may be provided on one or more optical elements. Light emitting elements configured to excite the luminescent material such as highly efficient light emitting diodes may be directed towards the luminescent material. The support structure may be a heat dissipating element, which may conduct heat from a heat source to a surface of the support structure. The heat dissipating element may have a passageway permitting the formation of a convection path to dissipate heat from the support structure. Such lighting units may be used to replace conventional fluorescent light tubes or other lighting devices, or may be provided as standalone lighting units.

Abstract: A light emitting device includes: a light emitting element; a substrate including a groove-like light guide extending along a first direction, emission light emitted from the light emitting element and introduced into the light guide being reflected by an inner wall surface of the light guide, spreading along the first direction, and being turned into upward light directed upward above the substrate; and a lens provided above the light guide and configured to collect the upward light and control light distribution characteristic in a plane generally perpendicular to the first direction.

Abstract: An LED lamp including a glass lampshell and a stem assembly with one end inserted into the glass lampshell. The stem assembly comprises a glass trumpet tube with one end sealed within the glass lampshell to form a cavity within the glass lampshell and within the cavity a supporting component connected to the glass trumpet tube and supporting an LED emitter. The stem assembly further comprises a wire encompassed within the glass trumpet tube. The wire has one end extending outside of the cavity and the other end electrically connected to the LED emitter.

Abstract: An LED lamp including a glass lampshell and a stem assembly with one end inserted into the glass lampshell. The stem assembly comprises a glass trumpet tube with one end sealed within the glass lampshell to form a cavity within the glass lampshell and within the cavity a supporting component connected to the glass trumpet tube and supporting an LED emitter. The stem assembly further comprises a wire encompassed within the glass trumpet tube. The wire has one end extending outside of the cavity and the other end electrically connected to the LED emitter.

Abstract: The invention provides systems and methods for providing illumination. A lighting unit may have a support structure, and one or more light emitting elements supported by a circuit board contacting the support structure. A first optical element and a second optical element may be provided. A remote luminescent material may be provided on one or more optical elements. Light emitting elements configured to excite the luminescent material such as highly efficient light emitting diodes may be directed towards the luminescent material. The support structure may be a heat dissipating element, which may conduct heat from a heat source to a surface of the support structure. The heat dissipating element may have a passageway permitting the formation of a convection path to dissipate heat from the support structure. Such lighting units may be used to replace conventional fluorescent light tubes or other lighting devices, or may be provided as standalone lighting units.

Abstract: A discharge lamp includes an airtight tube including a light-emitting unit in which a space is formed and seal portions formed at least on one end of the light-emitting unit, a discharge medium including a metal halide and a rare gas sealed in the light-emitting unit, a metal foil sealed into the seal portion, and a pair of electrodes one ends of which are overlapped and connected to the metal foil and the other ends of which are provided such that they are led into the space of the light-emitting unit and arranged in opposition to each other. A concavity is formed on at least a portion of the back surface side of the metal foil on which the electrode is overlapped, and a compression distortion is formed on the seal portion in the vicinity of the concavity.

Abstract: A road lamp dimming control device comprises a signal processor, a power supplier, a driver and a light emitting module. The single processor is used for receiving an inputted electric current and a control signal. The control signal is decoded into a dimming control signal that then is transmitted to the power supplier. The power supplier converts the inputted electric current into constant current based upon the dimming control signal. The driver receives the constant current to drive the light emitting module to allow the light emitting module having different brightness based upon the control signal, thereby performing multi-stage variation.

Abstract: A light emitting device, includes: a casing; a window; a semiconductor laser provided in an enclosed space formed by the casing and the window; and a fluorescent material in a form of any one of a crystal and glass, the fluorescent material being provided in the enclosed space, the fluorescent material absorbing laser light emitted from the semiconductor laser and emitting secondary light having a wavelength different from a wavelength of the laser light, and the secondary light being taken out through the window.

Abstract: An automotive discharge lamp, having an inner tube including a light emitting unit having a first space therein and seal portions formed on the light emitting unit, a discharge medium containing a first gas enclosed in the first space, a metal foil sealed in the seal portions, electrodes with one end connected to the metal foil and other end extended into the first space, and an outer tube connected to the inner tube to form a second space between the outer tube and the inner tube, wherein the second space has a second gas enclosed therein and the oxygen concentration in the second space is 1.0 volume % or less.