Abstract: A modular lighting assembly for a modular frame piece comprising a power module, a heat spreader, a circuit board with traces that provide electrical pathways, at least one illumination element, and a cover. The circuit board is disposed upon the heat spreader, the cover is disposed upon the circuit board and encapsulates the circuit board, the power module is electrically connected to the traces on the circuit board. The traces on the circuit board are electrically connected to the at least one illumination element to enable power transfer from the power module to the at least one illumination element. The modular lighting assembly can be slidably disposed within a slot of a modular frame profile.

Abstract: A LED tube lamp includes a heat sink, a LED substrate, a pair of connectors, and a cover fixed to the heat sink. The cover includes a first cover and a second cover, at least one optical lens is arranged on the first cover, the at least one optical lens comprises a concave lens and reflective lenses arranged on both sides of the concave lens. The concave lens is configured to refract light beams from the LEDs in a forward direction or in an approximate forward direction, the reflective lenses are configured to reflect light beams from the LEDs in a lateral direction. After the light beams are refracted by the optical lens, the light divergence angle of the LED tube lamp is increased.

Abstract: Provided are an LED light-emitting module and an illumination apparatus using the same. The LED light-emitting module includes a body frame having a light emitting opening in a direction inclined with respect to a ground surface and a coupling surface to which an LED package is coupled, the body frame including reflective plates extending from opposite sides of the coupling surface to define the light emitting opening, a plurality of heat radiating fins placed on the entire surface of the body frame except for the light emitting opening, and a plurality of LED packages installed on the coupling surface of the body frame such that light radiation angles of the LED packages are adjusted according to an angle by which the coupling surface is bent.

Abstract: A method for modifying a beacon obstruction lighting system to replace the incandescent lamp with an LED lamp. The LED lamp includes a heat sink and is installed to be at the same location as the incandescent lamp.

Abstract: A lamp may include an outer shell having heat conductivity and a base provided in the outer shell. The outer shell may include a light source support, and a heat radiating surface exposed to the outside of the outer shell. The light source support may, in some examples, be formed integrally with the heat radiating surface. A light source may be supported on the light source support. The light source may be heated during lighting, and be thermally connected to the light source support. In some examples, the light source may be covered by a cover.

Abstract: Disclosed is a liquid cooling system for use with MRI positioned video projectors to dissipate heat from the projector light source through liquid cooling. The system includes a heat sink body for mounting to the projector light source, the heat sink body constructed of a material to transfer heat away from the projector light. A remotely mounted motor-driven pump provides fluid circulation, the pump is constructed and/or mounted so as to not to be effected by the MRI magnetic field. The pump is coupled to the heat sink block by use of flexible tubing that is constructed and arranged to provide heat transfer to the environment thereby maintaining the projector light source temperature at a reduced level. A liquid reservoir is fluidly coupled to the pump intake for use in maintaining liquid levels at an optimum position.

Abstract: A back panel for use in a light emitting diode (LED) lighting assembly is disclosed. An extruded substrate formed of a thermally conductive material is provided, the substrate having a plurality of fins extending from a first side of the substrate, each of the fins having a substantially rectangular shape oriented so that a longitudinal axis of the fin is substantially parallel to a longitudinal axis of the substrate. At least some of the fins include a hole formed through the fin to enable heated air to rise through the fins. A plurality of LEDs are mounted on a second side of the substrate, and oriented in a longitudinal orientation with the fins oriented parallel to the bottom edge of a surface to be illuminated, such that heat rises perpendicular to the surface of the fin.

Abstract: A light-emitting diode (LED) tube has a tube and at least one LED tube fastener. Each of the at least one LED tube fastener has a body and a magnetic core. The body has at least one insertion leg formed on a bottom thereof and connected to a top wall of the tube. The magnetic core is mounted in a top portion of the body to be magnetically attached to a lamp fixture when the LED tube is mounted on the lamp fixture such that the at least one LED tube fastener holds and supports the LED tube and the LED tube is not bent due to a weight thereof.

Abstract: There is described a food cooling appliance (1) having an outer casing (2) extending along a vertical reference axis (A); a food cooling chamber (3) housed inside the outer casing (2) and of a given length (L1) measured along the reference axis; at least one food-supporting shelf (5) positioned firmly, m but in easily removable manner, inside the cooling chamber; a primary inductor (8) extending in a direction parallel to the reference axis, and of a length (L2) substantially equal or less than the length of the cooling chamber; one or more light-emitting units (18) located along an outer peripheral edge of the shelf and coplanar with the shelf; and at least on secondary inductor (9) housed in the shelf to supply the light-emitting diodes (18) with electric current.

Abstract: An LED light tube includes a modularized LED base having a recess, one illumination unit and one bridging unit being fixed in the recess, the illumination unit being constituted by LED dies and the bridging unit being constituted by conductive elements electrically connecting the LED dies; a heat dissipation base for receiving and supporting the modularized LED base thereon; a circuit unit disposed on the dissipation base to locate adjacent to one side of the recess; an optical layer covering the illumination unit and the bridging unit; a protection layer covering the optical layer; and a diffusion shield disposed above the dissipation base and having two peripheral sides formed with downwardly and inwardly bent projections slidably engaging two sliding grooves of the dissipation base, thereby enclosing the LED dies therein such that the diffusion shield is located above and transversely to a light emitting path of the LED dies.

Abstract: A back panel for use in a light emitting diode (LED) lighting assembly is disclosed. An extruded substrate formed of a thermally conductive material is provided, the substrate having a plurality of fins extending from a first side of the substrate, each of the fins having a substantially rectangular shape oriented so that a longitudinal axis of the fin is substantially parallel to a longitudinal axis of the substrate. At least some of the fins include a hole formed through the fin to enable heated air to rise through the fins. A plurality of LEDs are mounted on a second side of the substrate, and oriented in a longitudinal orientation with the fins oriented parallel to the bottom edge of a surface to be illuminated, such that heat rises perpendicular to the surface of the fin.

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: An LED lamp (A1) includes LED chips (21) and a heat dissipation member (3) that supports the LED chips (21), and the heat dissipation member (3) includes an LED mount (31) on which the LED chips (21) are mounted, and a slope portion (32) extending from the LED mount (31) opposite a main emission direction of the LED chips (21) and in a direction inclined with respect to the main emission direction. Such a configuration allows a wider range to be illuminated.

Abstract: A door of a refrigerator includes a front panel formed of a metal material, a display unit including a display portion which is disposed at a rear side of the front panel and on which operating information of the refrigerator is displayed when the display portion becomes bright or dark, and a plurality of through holes formed in a region of the front panel corresponding to the display portion. Although the display unit is hidden inside the door, information displayed on the display unit can be seen to a user through the plurality of through holes.

Abstract: An LED tube has a tube body, an LED light board and two caps. The tube body has a translucent tube shell and a heat dissipating seat. The translucent tube shell has two openings and a gap. The heat dissipating seat is mounted in the gap. The LED board faces toward the translucent tube shell and has a convex luminous surface obliquely facing toward the translucent tube shell to increase an illumination range of the LED light board, thus, an illumination angle of the LED tube in accordance with the present invention is also increased. Therefore, the LED tube glows evenly and eliminates grain effects of the LED tube.

Abstract: An LED tube has a tube body, an LED light board and two caps. The tube body has a translucent tube shell and a heat dissipating seat. The translucent tube shell has two openings and a gap. The heat dissipating seat is mounted in the gap. The LED light board is mounted in the tube body and has a luminous surface, wherein two opposite ends of the LED light board extend out of the heat dissipating seat. The luminous surface has four electrical connecting parts, wherein each two electrical connecting parts are respectively mounted near a corresponding one of the two opposite ends, thus, the four electrical connecting parts are mounted away from the heat dissipating seat to extend internal creepage distances between the four electrical connecting parts and the heat dissipating seat, and further increase electrical safety of the LED tube.

Abstract: An LED tube has a tube body, an LED light board and two caps. The tube body has a translucent tube shell and a heat dissipating seat. The translucent tube shell has two openings, a gap, two side walls separated by the gap, two first slide tracks and two second slide tracks. The heat dissipating seat is mounted in the gap and has two opposite sides respectively mounted in the two first slide tracks. The LED board abuts the heat dissipating seat and has two opposite sides respectively mounted in the two second slide tracks. The sides of the heat dissipating seat and the sides of the LED light board are separated by the first and the second slide tracks to extend creepage distances between the heat dissipating seat and the LED light board, and further avoid a short circuit between the heat dissipating seat and the LED light board.

Abstract: An aircraft light consists of a housing containing a light source, a heat sink element forming at least part of the exterior surface of the housing and an auxiliary thermal capacitor that is thermally decoupled from the heat sink element. A thermally expandable medium is coupled to the heat sink element and operates to thermally decouple the light source from the heat sink element and thermally couple the light source to the auxiliary thermal capacitor and vice versa, depending on the actual temperature of the heat sink element.

Abstract: The invention relates to a LED lamp (1) shaped as a slim conventional luminous tube, the LED lamp (1) comprising an elongated tubular glass casing (9), a socket (11, 11?) arranged at both ends, a LED unit (3) comprising a plurality of LED circuits (5) arranged on an elongated circuit board (7), and at least one conductor (18, 27, 31), the LED unit (3) being fixated against the first side of a support structure (35), the support structure (35) serving, in the operation of the LED lamp (1), to conduct heat away from the LED circuits (5). The support structure comprises a second side, abutment surface (40) opposite the first side, of the support structure (35), which abuts against the inside (10) of the glass casing (9), the support (35) extending in the longitudinal direction of the LED lamp (1) such that a distance (a) is attained between the support structure (35) and the socket (11, 11?).

Abstract: A lighting assembly is disclosed. The lighting assembly has an extrusion having a back plate and a plurality of fins. Each fin has a plurality of openings. The lighting assembly has at least one circuit board with a plurality of LEDs. The lighting assembly also has at least one lens holder. Each lens holder has a plurality of openings and a plurality of pockets. The plurality of openings of the lens holder are disposed to accommodate the plurality of LEDs when the lens holder is placed on top of the circuit board. Each of the plurality of pockets is used to accommodate placement of a corresponding lens. The plurality of LEDs are disposed, and the corresponding lenses are sized and disposed, to maximize light density over a given area.

Abstract: A LED lamp tube includes a hollow transparent tube body, a heat-dissipating base disposed in the tube body, a light-emitting module, a control circuit module, an electrical-conductive element, and electrical-conductive caps covering the tube body. The light-emitting module and the control circuit module are provided on two opposite surfaces of the heat-dissipating base respectively. The electrical-conductive element penetrates the heat-dissipating base to be electrically connected to the light-emitting module and the control circuit module. By this structure, the LED lamp tube can be assembled more easily with reduced soldering steps.

Abstract: A LED light source, comprising a heat-dissipation base, a circuit base is fixed on the heat-dissipation base, and luminous LED(s) is fixed on the circuit base, a light-distribution lens is sealed connected outside the heat-dissipation base, a housing is fixed outside the light-distribution lens, and front ends of the housing and the light-distribution lens are separately fixed jointed to a light-transmitting cover, the light-transmitting cover is sealed connection with the heat-dissipation base, the circuit base and LEDs are located within a sealed first chamber formed by the heat-dissipation base, light-distribution lens and light-transmitting cover, at least a channel is further arranged on the heat-dissipation base, each channel is disconnected to the first chamber, and two opposite openings of each channel are connected to the exterior. The LED light source has a good heat-dissipation performance, particularly to be used for high-power LED illumination.

Abstract: Solid state lamp or bulb structures are disclosed that can provide an essentially omnidirectional emission pattern from directional emitting light sources, such as forward emitting light sources. The present invention is also directed to lamp structures using active elements to assist in thermal management of the lamp structures and in some embodiments to reduce the convective thermal resistance around certain of the lamp elements to increase the natural heat convection away from the lamp. Some embodiments include integral fans or other active elements such as diaphragm-pump type active cooling elements, that move air over the surfaces of a heat sink, while other embodiments comprise internal fans or other active elements that can draw air internal to the lamp. The movement of the air over these surfaces can agitate otherwise stagnant air to decrease the convective thermal resistance and increasing the ability of the lamp to dissipate heat generated during operation.

Abstract: A work light for multi-occasions includes a rectangular lamp body, and a radiating surface disposed on a front side for connecting with a power cord. Radially protruded heat dissipating fins and spacedly apart heat dissipating grooves are formed on cross sections besides the radiating surface of the rectangular lamp body. One end cover coupled to one end surface is disposed with a switch for controlling the radiating surface, and another end cover coupled to another end surface is disposed with a power socket. At least one fixing device includes a platy fastener with fastening portions oppositely formed at two ends for slidably fastening in the heat dissipating grooves on an outer wall of the rectangular lamp body. A flexible supporting rod is disposed with coupling portions at two ends for coupling with coupling holes of the fastener and the magnetic fixing element.

Abstract: The present invention relates to an LED lamp tube with uniform luminance. The LED lamp tube with uniform luminance provided by the present invention comprises a lamp tube main body and a lamp holder connected to two ends of the lamp tube main body. A power supply is provided between the lamp tube main body and the lamp holder. The lamp tube main body comprises a light diffusion cover and a heat-dissipation casing engaged with each other to form a lamp cavity. A substrate with light emitting diodes provided thereon is disposed on the heat-dissipation casing. The maximum distance from the light emitting diodes to the light diffusion cover is larger than 50% of the total height of the lamp tube main body.

Abstract: A LED (Light Emitting Diode) lamp capable of effectively dissipating heat to the outside and distinguishing borders of bright portions and dark portions in a tube cap is provided. The LED lamp includes: a tube; a support member, including a heat dissipation component extending in an axial direction of the tube, and accommodated in the tube; a plurality of LED chips, accommodated in the tube and supported by the support member; and an adhesive layer, disposed between the heat dissipation component and the tube, and used for adhering the heat dissipation component and the tube. The LED lamp further includes a tube cap formed by a first semi-cylinder portion and a second semi-cylinder portion. A light passing space allowing light emitted from each LED chip to pass through is formed in the tube. The first semi-cylinder portion and the second semi-cylinder portion together surround the tube.

Abstract: The LED light tube is adapted to replace a fluorescent light tube which is mounted in a fluorescent light tube fixture. These fixtures have first and second socket end mounts and each end mount mechanically accepts a bi-pin or other common connector for the fluorescent light tube. The fluorescent fixture is supplied with a main power line. In the present invention, the main power line may carry 110 to 277 volts. However, the present invention utilizes main power feed only to the first socket end mount of the fluorescent fixture and further maintains an open circuit between the main line power and the second socket end mount. The LED light tube includes an elongated tubular structure substantially the size and length of the fluorescent light tube and extends between the first and second end mounts of the fixture. Within an end region of the tubular structure and adjacent the first tube end mount, an internal power supply converts the main line power to LED bank power.

Abstract: An LED lighting device may include an LED support, which is populated with at least one LED on a front side thereof and a rear side of which is fastened to a rest. The front side of the LED support may be overarched by an electrically insulating, light-permeable and diffusely scattering LED cover, and the LED cover may be overarched by a protection cover resting on the support.

Abstract: A light for attachment to mining equipment. The light comprises a base, a plurality of PC boards coupled to the base, each of the plurality of PC boards including spaced apart LEDs, a heat sink in thermodynamic communication with the plurality of PC boards, a clear potting material encasing the plurality of PC boards, and a clear cover sealingly attached to the base and overlying the plurality of PC boards, the heat sink, and the potting material.

Abstract: A light source device includes: a tubelar body disposed in the front side of a reflection mirror in the light emission direction and surrounding an arc tube; a pair of ducts connecting with the tubelar body and provided with a first channel and a second channel to guide air; and a channel switching mechanism which allows air to flow through the first channel or the second channel. The tubelar body includes a pair of communicating ports configured to supply air flowing through the first channel and the second channel toward the light emission portion. The pair of the communicating ports are disposed on a virtual line passing through the center line of the arc tube and crossing the vertical direction and the horizontal direction as viewed in a direction along the center line.

Abstract: A tube-type light-emitting diode (LED) illumination lamp is provided. The tube-type LED illumination lamp includes at least one printed circuit board on which at least one LED is placed, and a heat dissipation cover that has at least one seating surface on which the printed circuit board is mounted. The seating surface is obliquely formed such that each printed circuit board is mounted on each inclined surface. According to the present invention, since a light diffusion angle is increased by obliquely positioning the printed circuit board on which the LED is placed, illuminance quality of the tube-type LED illumination lamp can be improved.

Abstract: A lighting unit includes LED chips positioned in an array form in a main scanning direction on LED substrates. Cylindrical parabolic mirrors each form a shape in which a cylindrical paraboloid having curvature with respect to an sub-scanning direction has been clipped by an axial plane that is perpendicular to the vertex of the cylindrical paraboloid in the main scanning direction, and project light emitted from the light source on an illumination area of an illuminated item. Each cylindrical parabolic mirror includes an anchoring section that is provided at the vertex of the cylindrical paraboloid, and extends from the vertex in an outside direction of the cylindrical paraboloid. Heat-radiating plates each have a contact section that is in contact with the LED substrate, and a non-contact section. Each LED substrate is interposed between the contact section of the heat-radiating plate and the anchoring section of the cylindrical parabolic mirror.

Abstract: A light bar includes a wiring substrate, a plurality of light sources, and at least one high efficient heat-dissipating component. The wiring substrate has a first surface and a second surface opposite to the first surface. The second surface is divided into at least one high efficient heat-dissipating section and at least one low efficient heat-dissipating section. The light sources are respectively disposed on the first surface opposite to the high efficient heat-dissipating section and the low efficient heat-dissipating section. The high efficient heat-dissipating component is disposed on the high efficient heat-dissipating section.

Abstract: An indirect troffer-style lighting fixture that is particularly well-suited for use with solid state light sources. An elongated heat sink with a mount surface for light sources runs longitudinally along the fixture. To facilitate heat dissipation, a portion of the heat sink is exposed to the ambient room environment. An elongated specular reflector also runs along the device proximate to the heat sink. The heat sink and the specular reflector are mounted such that a spatial relationship is maintained. Some of the light from the sources impinges directly on the specular reflector and is redirected towards a back surface. The back surface defines a luminous surface that receives light directly from the sources and redirected light from the specular reflector. The back surface and the heat sink mechanically obscure any images of the light sources in the specular reflector such that they are not visible in a viewing area.

Abstract: An LED-based light comprises: a tubular housing formed of a high-dielectric material and defined at least in part by a light transmitting portion; an elongate circuit board disposed within the housing; at least one LED mounted on the circuit board; an elongate heat sink disposed within the housing, the heat sink having an interior circuit board mounting surface opposing a radially outer surface, the circuit board mounted in thermally conductive relation to the circuit board mounting surface, substantially all of the radially outer surface of the heat sink in thermally conductive relation with the tubular housing for electrically insulated thermal transmission of heat generated by the LED from the circuit board to an ambient environment surrounding the LED-based light; and a pair of end caps disposed on opposing ends of the housing with connectors configured to physically connect the LED-based light to a conventional fluorescent light fixture.

Abstract: A linear light assembly having an elongate tray and a plurality of moveable lighting packages. The elongate tray may provide both mechanical support and thermal management for the plurality of moveable lighting packages. The elongate tray may comprise a medial channel portion with a planar track member and two opposing rim members projecting perpendicularly outward therefrom. Each flange portion may have a U-shaped cross-section. Each moveable package may comprise an assembly tray and an optical assembly having at least one light-emitting device (LED). Each moveable lighting package may be adjustably positioned along and independently removed from the front side of the track member of the elongate tray. Any segmentation of the elongate tray may be characterized by a heat dissipation rate not less than a combined heat generation rate of all moveable lighting packages carried by the segment. A method aspect includes installation of the linear light assembly.

Abstract: The invention provides an elongated lighting fixture with multiple light emitting diodes (LEDs) arrayed in two groups that are angled to each other. The fixture includes an elongated housing having a pair of side walls with at least one fin to dissipate heat. Each side wall has a support member extending upward at angle from the side wall. A generally transparent cover is connected to the housing and extends between opposed ends of the housing. A first group of LEDs and a second group of LEDs are mounted to the first support member and the second support member, respectively. First and second interconnection board assemblies are affixed to respective support members beneath the group of LEDs. When the first and second interconnection board assemblies are energized by an internal power source, current travels from each interconnection assembly through fasteners to each group of LEDs for illumination.

Abstract: Provided is a lighting apparatus using light emitting diodes (LEDs) having a lateral heat radiation unit structure that can maximize heat radiation effect by employing an air vent structure causing atmospheric pressure difference between both side ends of an air circulation path. The lighting apparatus comprising a housing having a power supply accommodation space therein, a heat radiation unit that comprises an LED module accommodation groove that is installed on the top of the housing and having at least one inclined surface or mounting surface on which the LED module is mounted, and a number of fins that are formed on the outer circumferential surface of the LED module accommodation groove, an air circulation path that is lengthily formed between the housing and the heat radiation unit.

Abstract: A lighting apparatus is disclosed. The lighting apparatus may be an omni-directional LED lamp. The lighting apparatus may include a heat sink and a first substrate disposed over the heat sink. A second substrate may be mounted to a connector provided on the first substrate. The second substrate may include at least one LED mounted on a surface of the second substrate. The second substrate may be mounted in the connector such that the surface of the second substrate is positioned at a prescribed angle with respect to the upper surface of the first substrate. Various types of reflectors are disclosed that reflect light in a prescribed angular range with uniform intensity. A bulb may be provided over the heat sink to surround the LEDs. Moreover, a power module may be electrically connected to the connector to provide power to the LEDs.

Abstract: An LED-based high power uniform light engine including an array of LEDs having a common anode and a fill factor which exceeds 0.85, the common anode having heat spreading functionality and an active heat sink which is thermally connected to the common anode.

Abstract: A troffer door assembly having a heat conductive frame assembly, a lens member and a light emitting diode (LED) assembly having a rigid heat conductive brace member, wherein the rigid brace member is affixed to the frame assembly such that the rigidity of the frame assembly is increased and such that heat is passed from the rigid brace member to the frame assembly. Hinge members and latch members are positioned in exterior slots on the frame assembly such that the location of the hinge members and latch members can be adjusted. In this manner installed troffer light fixtures can be retrofitted by replacing the installed troffer door with the troffer door assembly as described.

Abstract: The invention relates to an LED fluorescent tube, characterized in that the tube comprises: a light guide column; two round aluminum substrates or round copper-aluminum bases distributed symmetrically at both sides of the light guide column in the axial direction of the light guide column, gradually far away from the light guide column; two cylindrical hollow column radiators equipped with wire passing holes; and two holders. The LED fluorescent tube of the invention has not only good heat dissipation, but also light weight and excellent energy-saving effect due to the structural advantages.

Abstract: A linear light assembly having an elongate tray and a plurality of moveable lighting packages. The elongate tray may provide both mechanical support and thermal management for the plurality of moveable lighting packages. The elongate tray may comprise a medial channel portion with a planar track member and two opposing rim members projecting perpendicularly outward therefrom. Each flange portion may have a U-shaped cross-section. Each moveable package may comprise an assembly tray and an optical assembly having at least one light-emitting device (LED). Each moveable lighting package may be adjustably positioned along and independently removed from the front side of the track member of the elongate tray. Any segmentation of the elongate tray may be characterized by a heat dissipation rate not less than a combined heat generation rate of all moveable lighting packages carried by the segment. A method aspect includes installation of the linear light assembly.

Abstract: A lighting assembly can include a linear light module with one or more LED light elements, where a length of the light module is greater than a width of the light module. An elongate socket removably receives the linear light module therein. The socket includes a locking mechanism actuatable to releasably and resiliently lock the linear light module in the socket via actuation of one or more levers.

Abstract: A light emitting diode (LED) light tube includes a heat dissipation base having a light emitting side formed with a recess and at least one illumination unit and a bridging unit disposed on a bottom surface of the recess. The illumination unit and the bridging unit are connected electrically relative to each other via wire-bond technique.

Abstract: A light tube device includes a light bar section and a heat dissipation structure. The light bar section and a heat dissipation structure is a single-piece integrally formed structure, and collectively form a hollow tube. An insulating layer, a copper foil layer and a solder mask layer are sequentially formed on the light bar section, and the solder mask layer is patterned to expose the copper foil layer so as to serve as welding zones. A plurality of light emitting units are located on the welding zones respectively and electrically connected to the copper foil layer to form a light bar.

Abstract: A Light Emitting Diode (LED) light tube includes a heat dissipation base having a light emitting side formed with a recess and at least one illumination unit and a bridging unit disposed on a bottom surface of the recess. The illumination unit and the bridging unit are connected electrically relative to each other via wire-bond technique. Two circuit units are disposed on the light emitting side of the heat dissipation base respectively located at two opposite sides of the recess.

Abstract: A passive cooling lighting fixture that includes a light diffusing lens. The fixture is self-contained and self-cooled in order to maximize the life span of the light source. The passive cooling system utilizes vented end caps that circulate cool air into the lighting fixture while venting hot air out of the lighting fixture. The light diffusing lens produces a light that is soft enough for use indoors.

Abstract: Provided is an illuminating device that is capable of improving use efficiency of cooling fluid used for cooling LEDs. An illuminating device (4) includes LEDs (13), a chassis (14) including a holding surface (14b) on which the LEDs are arranged in a matrix, cooling members (20) that are disposed on the chassis at positions associated with positions of the LEDs, each of the members including a channel (20a) inside, through which cooling fluid runs and a valve (21) opening and closing the channel, a radiator (22) performing heat exchange between the fluid and air, a pump (24) connected to the members and the radiator by pipes (25, 26) and circulating the fluid, an LED control unit (43) controlling driving of the LEDs, and cooling-member control units (44) controlling driving of the valves of the members associated with the LEDs based on the driving of the LEDs.

Abstract: An LED tube lamp structure includes a heat-transferring and light-pervious glass tube; a slightly curved elongated heat-dissipation metal base internally bonded to the glass tube via a thermal adhesive; an LED chip circuit board fitted to a front side of the heat-dissipation metal base; and two electrode covers fitted on two open ends of the glass tube and respectively having a fixing dummy pin and a through hole. The heat-dissipation metal base has two end portions inserted into insertion sections in the electrode covers to generate an upward tension for tightly contacting with the glass tube; and the LED chip circuit board has two contact pins at two ends for extending through the through holes. Thus, the LED tube lamp can be easily assembled and provides good heat transfer and dissipation to ensure normal operation and extended service life thereof.