Abstract: An illumination panel employing two or more groups of light emitting diodes (LEDs) configured to emit light in different color temperatures, an optically transmissive sheet with light deflecting surface structures, and an LED driver electrically connected to the LEDs. The illumination panel further incorporates two or more LED intensity control channels and one or more pulse width modulation (PWM) circuits. The LED intensity control channels are configured to independently control the light output from the individual LED groups and the LED driver is further configured to provide dimming of the LEDs in response to a change of the intensity of incident natural daylight.

Abstract: A high-bay luminaire includes an upper housing having an outer wall with an outer wall having a plurality of first heat fins extending therefrom, and an interior surface defining an interior compartment with an angled wall; a base connected to the upper housing; a light emitter connected to the base; a lens connected to the base and positioned below the light emitter; and a driver connected to the angled wall by a driver bracket and positioned adjacent the interior surface.

Abstract: A lighting fixture includes a housing, a light source, and a lens. The housing includes a base and first and second sidewalls. Each of the sidewalls extend obtusely from the base. The light source is operably coupled to the base and includes a plurality of light emitting diodes (LEDs). The lens is operably coupled to at least one of the sidewalls and cooperates with the sidewalls to define an interior cavity. The plurality of LEDs are arranged such that light emitted therefrom is directed from the base toward at least one of the first or second sidewalls and is redirected to the interior cavity a first time.

Abstract: A device for closing a motor vehicle front end air intake is disclosed. The device has a support frame in which at least one set of pivoting slats is installed. At least one control element that controls the positioning of the slats includes an actuator having fixing holes, a housing that receives the actuator, and a cap that comes to cover the housing. The cooperation between the cap and the housing being effected by clipping. The housing includes positioning elements to be inserted into the fixing holes, and the cap includes at least one specific shape that keeps the actuator fixed relative to the positioning elements when clipping the cap onto the housing.

Abstract: A light assembly includes a heat pipe having a first condenser portion and a first evaporator portion. The heat pipe includes a longitudinally extending wall. A plurality of light sources are disposed at least partially around and thermally coupled to longitudinally extending wall at the first evaporator portion of the heat pipe. A first heat sink housing receives the first condenser portion of the heat pipe.

Abstract: The present invention discloses an internal-circulating heat dissipation system for a stage light, the system comprising a support arm, a light holder and a circulating heat dissipation system, wherein the light holder is pivotally connected to the support arm through a pivot shaft, the pivot shaft is of a shaft pipe structure, an internal space of the light holder is in communication with an internal space of the support arm through the pivot shaft, the circulating heat dissipation system comprises a cooling medium, a heat dissipation component located inside the support arm, and a power component that promotes the cooling medium to flow in circulation between the light holder and the heat dissipation component through the shaft pipe structure, and the cooling medium is isolated from an external space of the stage light.

Abstract: The present disclosure is for a LED submersible light comprising a light-emitting lampshade in thread connection with a back cover to form a closed chamber housing a circuit board, lamp beads, batteries, and a control switch. A silica gel sealing ring is disposed in a positioning groove along an inner surface of the back cover. When engaged the sealing ring expands laterally in both directions to fill up spaces between internal and external threads and the positioning groove.

Abstract: An air heating cooling and dehumidification device for maintaining room air at a desired humidity and temperature includes an air to air cross flow heat exchanger (105) formed with cross flow first and second air flow paths (A) and (B), a primary air to liquid heat exchanger (110) in fluid communication with a liquid cooling fluid source (150) for dehumidifying air flow and a secondary air to liquid heat exchanger (115) for reheating the air flow after dehumidification.

Abstract: A controlled-environment plant growing systems are described. The system may include a plant growing enclosure, a liquid-cooled LED unit, an air cooler unit, an air heater unit, a heat exhaust unit, a recirculation pump, a chiller, and a controller. The enclosure may have mirror-like inner surfaces. The LED unit may include one or more LED modules and a transparent, liquid-tight housing encasing the LED modules. The housing may have a liquid inlet and a liquid outlet configured to flow a liquid coolant through the housing, thereby cooling the LED modules. The air cooler unit may be configured to cool the enclosure via the liquid coolant. The air heater unit may be configured to heat the enclosure via heat produce by the LED modules. The heat exhaust unit may be configured to exhaust excess heat remote of the enclosure. The controller may be configured to control one or more of the air cooler unit, the air heater unit, and/or the chiller in order to control the temperature within the enclosure.

Abstract: The present invention relates to a heat sink and a lighting apparatus, and the heat sink, according to one embodiment of the present invention, comprises: a heat transfer module for transferring heat generated from a light source module; and a housing including the light source module and a heat sink module for radiating the heat transferred from the heat transfer module.

Abstract: An LED illumination system is operable to irradiate plant materials with photosynthetically active radiation. A lighting assembly includes a plurality of different LED types. Each LED lamp has a different spectral power matched to an absorption peak of the plant materials. All of the LED lamps of each different lamp type are driven by a different dedicated power source. Each power source can be independently modulated to vary the collective spectral power output of the LED illumination system. The lighting assembly includes fluid conduits disposed proximate to the LED lamps and a cooling fluid is flowed through the fluid conduits to removed thermal energy from the LED lamps.

Abstract: An IC-rated airtight luminaire including a housing divided on a vertical plane to form two housing portions releasably coupled to one another to form an open cylindrical lower portion, a heat sink upper housing portion, and a heat conducting lamp assembly adjustment track enclosed within the housing. Disposed within the housing are heat sink walls slidably capturing a slide portion of a lamp assembly. A lamp holder integral with the slide bar includes a lens that directs a beam of light through an opening in a ceiling substrate in which the housing is installed, and an expansion ring rotatingly disposed around the open cylindrical lower portion of the housing engages and secures the housing in a ceiling substrate while also permitting the housing to freely turn within the expansion ring so as to allow adjustment of a beam of light directed from the lamp assembly.

Abstract: A vehicular display apparatus includes: first illumination portions that illuminate first display areas from behind by luminescence of a plurality of first light sources; first cover portions that are placed behind the first display areas and internally expose the first light sources; a second illumination portion that illuminates a second display area from behind by luminescence of a plurality of second light sources; and a second cover portion that is placed behind the second display area and has an interior partitioned from the interiors of the adjoining first cover portions while internally exposing the second light sources. The first cover portions externally form an air passage for an air flow. The second cover portion has an air hole opened to communicate the interior of the second cover portion with the air passage external to the first cover portion.

Abstract: A unitary heat sink that includes fins and roots configured to provide improved thermal management for solid state light sources. In an embodiment, the unitary heat sink includes a central hub portion composed of a thermally conducting metal, a plurality of fins projecting away from the central hub portion in a first direction, and a plurality of roots projecting away from the central hub portion in a second direction generally opposite from the first direction.

Abstract: An advantage of some aspects of the invention is to provide a light source device and a projector which can acquire a type of a light source. A light source device includes a light source which emits light; and light source housing which accommodates the light source therein. The light source housing includes an attaching unit which can attach a conducting member having conductivity to a surface of the light source housing, and the conducting member is attached to the attaching unit according to the type of the light source. Accordingly, it is possible to acquire the type of the light source based on the presence or absence of the conducting member electrically connected to the terminal of a device to which the light source device is attached, independent of the temperature of the light source device.

Abstract: A light source includes an arc tube having a light emission portion for emitting light. A reflector reflects the light toward an illumination receiving area with the arc tube fixed to the reflector. A housing houses the reflector to form a space through which cooling air flows. The housing has three delivery ports disposed side by side as ports from each of which the cooling air is delivered toward the direction of the light emission portion. A first delivery port included in the three delivery ports is located such that the center of the first delivery port is disposed substantially at a position aligned and runs parallel to the optical axis of the arc tube. Second and third delivery ports included in the three delivery ports are disposed in the vicinity of one and the other sides of a first delivery port, respectively, with respect to the optical axis.

Abstract: An LED assembly includes an optically active lens, an LED board seated on a first surface of a hear sink, and a gasket disposed between the lens and the heat sink. The lens and the first surface of the heat sink defining a cavity receiving the LED board, with the gasket configured to water-tightly seal the cavity. At least one electrical connector extends through a wall of the lens, with one end provided inside the cavity and connected to the LED board, and another end disposed outside the cavity and connected to a power source.

Abstract: Disclosed is a heat-dissipating apparatus and an illuminator using the same. The heat-dissipating apparatus includes a heat sink including one side contacted with a heat generating portion and the other side having heat-dissipating pins arranged at the edge thereof and a space formed inside the heat-dissipating pins; and a driver that is positioned in the space and keeps the heat-dissipating pins cool by sucking outside air and discharging inside air with a pumping operation.

Abstract: A refrigerator with an ultraviolet LED may be provided that includes: a base disposed on a first member and a second member which are placed within the refrigerator and have one surfaces having facing directions crossing each other; a first fixing member disposed between the base and the first member; a second fixing member disposed between the base and the second member; and an ultraviolet LED being disposed on the top surface of the base and emitting light toward the interior space of the refrigerator.

Abstract: A method and apparatus for the thermal protection of LED light modules in a range hood appliance is provided. If the temperature of the LED light module reaches a predetermined temperature, one or more protective actions are taken to prevent over heating the LED light module. Such protective actions can include e.g., decreasing and/or terminating the power to the LED light module, opening a damper to provide air for cooling the LED light module, and/or activating a fan to provide forced convection cooling of the LED light module.

Abstract: The invention relates to a calibration radiation source comprising the following: a housing (2) having an opening (12), a board (22) held in the housing (2), a semiconductor radiation source (18) mounted on the board (22) for generating a light beam, and an exit opening support element (14) having, in the area of the opening (12), a light exit opening (15) through which the light beam radiates outwards from the housing (2). The exit opening support element (14) is decoupled from the housing (2), and is attached to the board (22) of the semiconductor radiation source (18).

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: According to one or more arrangements, a lighting device such as a lamp may include a substrate on which one or more lighting elements are mounted. One or more aspects of the lamp may further provide heat conductive/dissipating properties. Additionally or alternatively, the substrate may include a through hole through which at least one wire of the lighting device may extend. For example, the wire may extend through the at least one through-hole from a first side of the substrate to a second side of the substrate. The wire may be connected to a pattern layer of the substrate. According to other aspects, the lighting device may further include a supporting body for supporting the substrate. The supporting body may include another through-hole through which the at least one wire further extends.

Abstract: A light source lamp lighting device includes a light source lamp, cooling means for cooling the light source lamp, an extinguishing time measurer that calculates extinguishing time information indicating an extinguishing period when the light source lamp was last switched off to a present time, a storage that stores lighting performance, which is a history of successes and failures of lighting the light source lamp, a plurality of cooling times corresponding to an extinguishing period when the light source lamp is switched off indicated by the extinguishing time information as a cooling time for causing the cooling means to operate, and a first threshold set with respect to the lighting performance, and a controller that reads out, in lighting the light source lamp, the lighting performance, the cooling time stored in the storage based on the extinguishing period when the light source lamp is switched off calculated by the extinguishing time measurer, and the first threshold and, when a number of successes of

Abstract: An illumination module is provided that can be inserted into a receptacle with a ramp that includes a wall and may be mounted on a support surface, such as a heat sink, and the illumination module include a cover and an LED assembly rotateably coupled to the cover. The LED assembly seats within the receptacle which causes terminals of the LED assembly to align with contacts on the receptacle. Circuitry is provided in the module that accepts an input voltage and converts the input to a desired driving output. The cover can be rotated relative to the receptacle so as to engage ramps so as to direct the LED assembly into the receptacle. When the LED assembly is attached to the receptacle, the terminals on the LED assembly mate with the contacts on the receptacle.

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: 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 lamp assembly comprising a housing having a front surface, a cavity, and a mounting rod, a reflector having an opening and mounted within the cavity, a light source removably mounted within the cavity and the opening, a cap removably secured to the housing, a lens disposed between the cap and the housing, a heat shield, and wherein the heat shield is disposed between the lens and the light source.

Abstract: A cooling arrangement comprising a source electrode, a first and a second target electrode arranged at a distance from the source electrode and control circuitry for controlling a voltage being applied between the source electrode and at least one of the first and the second target electrodes. The voltage is controlled such that an airflow resulting from a potential difference between the source electrode and at least one of the first and the second target electrodes is arranged to have alternating directions. By means of the invention it may be possible to provide cooling of a device having similar or better performances than a conventional heat sink and fan system, but with a smaller size and weight as well as being silent.

Abstract: Provided is a light source device capable of effectively cooling a bulb included therein. The light source device includes: a luminous tube having a bulb to seal a pair of electrodes that generates light by electric discharging; a reflector formed into a concave surface shape and configured to emit light from the bulb; and an air blowing device that generates a flow of gas to cool the luminous tube.

Abstract: Cooling air conveyed through a cooling duct 3 is supplied to a discharge lamp 10 via a cooling air exit 21 having a plurality of flow paths 23a to 23c partitioned by a partition plate 22. An air flow direction changeover section 24 changes a flow path through which the discharge lamp is supplied with the cooling air from the cooling air exit. An air flow blocking ball 25 in the air flow direction changeover section moves by its own weight through a guide portion 26 to thereby block the flow path of the cooling air exit. This allows the cooling air to be directed specifically toward an upper side 11a in a direction of gravity of a lamp bulb of the discharge lamp to eliminate a temperature difference, even if a mounting style of the discharge lamp is varied among desk mounting, ceiling mounting, and vertical mounting.

Abstract: A lighting system is described. The lighting system includes a lamp and a first container including a first phase change material thermally connected to the lamp. Heat generated by the lamp during operation is conducted to the first phase change material. The system also includes a second container including a second phase change material thermally connected to the lamp. Heat generated by the lamp during operation is also conducted to the second phase change material, and the second phase change material has a transition point temperature lower than the transition point temperature of the first phase change material of the first container to account for a temperature drop between the second container and the first container. The lighting system also includes a temperature sensor for reducing lamp power if the lamp becomes too hot, and a mounting bracket which may also conduct heat away from the lamp.

Abstract: A lamp apparatus includes an apparatus body including a housing having a cap at one end side, and thermal conducting fins provided on an inner surface of the housing so as to extend from the one end side along the other end side thereof and project inward of the housing, a thermal radiation plate attached to the other end side of the housing in a state in which one surface side is in contact with the thermal conducting fins, a light-emitting body attached to the other surface side of the thermal radiation plate, and a lighting circuit disposed in the housing and configured to light the light-emitting body.

Abstract: A lighting fixture with a housing having an opening and containing a fan and at least one heat-generating light bulb to produce light at the opening and a protective lens assembly below the housing opening. The protective lens assembly includes a top clear or translucent lens and a bottom clear or translucent lens having an opening and spaced from the top lens to provide a first ventilation gap between the lenses while protecting the interior of the housing. The fan may be operated to cool the light bulb by moving air through the ventilation gap and across the bulb.

Abstract: A lighting apparatus includes a housing, a light emitter located in an interior region of the housing, a driver for the emitter, and a heat sink coupled to the driver. The heat sink includes a plurality of fins for cooling the driver. The apparatus further includes a driver mounting portion having a mounting surface and a side wall. The side wall is coupled to one of the heat sink and the driver so that the plurality of fins of the heat sink are exposed. The mounting surface of the driver mounting portion is coupled to the housing.

Abstract: A heat dissipating structure of a lightweight lamp cup 10 made of a porous material includes a containing cavity 11 at an end of the lamp cup 10, a lamp holder 30 at another end of the containing cavity 11, a metal hood 60 sheathed with the lamp holder 30 and covered onto an external side of the lamp cup 10, a heat conduction medium 50 between the lamp cup 10 and the metal hood 60, and a light emitting unit 20 contained in the containing cavity 11 of the lamp cup 10, such that the heat produced by the light emitting unit 20 can be conducted form the lamp cup 10 to the metal hood 60 and dissipated from the metal hood 60 to the outside.

Abstract: An LED device has an LED assembly connected to or abutting a heat sink, the heat sink connected to a cooling bridge and optionally enclosed within insulated connector end caps and crossover end caps and within a reflector cover and side cover. The cooling bridge conducts heat to the heat sink away from the reflector cover, and side cover, where the heat may be removed by a circulating coolant. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 C.F.R. §1.72(b).

Abstract: A light emitting assembly (10) includes a heat sink (12) defined by a plurality of independent sections (14). Each section (14) includes walls (24, 26) extending transversely from the mounting surface (20) to define an open container. Light emitting diodes (52) are disposed at the bottom of each open container. Each section (14) includes first fins (32) extending outwardly from the walls (24, 26) and extending toward the first fins (32) of an adjacent section (14). In one embodiment, the sections (14) can be cantilevered to a planar surface (38) extending longitudinally across an end wall (24) of each section (14). In a second embodiment, the sections (14) can be interconnected by bridges (42) and then vertically mounted to a wall with a mounting bracket (44). The sections (14) can include second fins (34) extending from a heat transfer surface (22) facing opposite the mounting surface (20). The second fins (34) are disposed between the heat transfer surface (22) and the mounting bracket (44).

Abstract: One heat removal assembly includes a plurality of fins configured to receive heat from a light emitting diode. In the plurality of fins, two adjacent fins are separated by a gap width, and each fin has a fin length. The heat removal assembly also includes a duct configured to draw a stack-effect airflow through the plurality of fins to remove heat from the plurality of fins. The gap width separating two adjacent fins and the fin length of each of the fins are configured to prevent boundary layer choking the plurality of fins. The heat removal assembly also includes a conductor and a thermal storage system configured to receive heat from the light emitting diode.

Abstract: A light source cooling device includes a light source module, an inner casing, an outer casing, and a plurality of spacers. The inner casing encloses an accommodation space for accommodating the light source module. The outer casing surrounds the inner casing and has a gap included between an inner wall of the inner casing and the outer casing, wherein the inner casing and the outer casing are made of materials with different thermal conductivity coefficients. The inner wall of the inner casing, an outer wall of the outer casing, and the spacers together form a plurality of heat-dissipating passages. The inner wall absorbs the heat generated by the light source module and generates a temperature gradient between the inner wall and the outer wall, which assists in creating thermal convection to exhaust the heat.

Abstract: Light engines that include a plurality of light sources each covered with an optic The optic includes a chamber that receives the light source. In one embodiment, tubes connect adjacent light sources. Coolant is introduced into the tubes and circulates into the chamber of each optic, thus removing thermal energy from the chamber. In other embodiments, the light engines include a heat sink provided with channels. Coolant may be introduced into one of the channels, and may then circulate into the chamber of each optic to remove heat generated by the light source from the chamber. The channels provide a fluid path for the coolant to move between the different optics.

Abstract: A projector includes: an external housing; and an exhaust fan configured to suck an air within the external housing and discharges the sucked air to the outside, the external housing has a top and bottom surface crossing a vertical axis, an air discharge port through that the air discharged from the exhaust fan is discharged to the outside, and a side surface that connects the top surface and the bottom surface, the exhaust fan constituted by a turbo fan that has an impeller rotatable around a predetermined rotation axis, and the rotation axis extends along the vertical axis.

Abstract: A vehicle headlamp includes: a lamp outer casing; a lamp unit including: a light source unit having a light source that emits light, a reflector and a heat sink; a stationary frame; a movable frame that is supported by the stationary frame to be rotatable about a rotating shaft; a lens unit supported by the movable frame and having a projection lens; a first aiming operation shaft that adjusts an optical axis in the lateral direction; and a second aiming operation shaft that adjusts the optical axis in the vertical direction. A focal point of the light reflected by the reflector is coincident with a center of the rotating shaft. The lens unit is moved relative to the stationary frame such that a distance between the focal point and the projection lens is constant. The heat sink is positioned on the outside of the lamp outer casing.

Abstract: An illustrative thermally managed light includes a light source, for example an LED array, a heatsink having a tapered outer surface, the light source thermally coupled with the heatsink, a housing having a tapered interior surface portion, and a securing device coupling the heatsink and the rear end of the housing. The securing device, for example a tensioning device, adapted to retain the outer surface of the heatsink in thermal contact with the tapered interior surface of the housing, thus transferring and dissipating the heat from the light source into the environment around the housing.

Abstract: A light source device, includes: an arc tube having a tube spherical portion containing a pair of electrodes disposed along an illumination axis, and a pair of sealing portions extending from both sides of the tube spherical portion; a reflector having a reflection portion disposed in the vicinity of one of the sealing portions of the arc tube for reflecting light emitted from the arc tube toward an illumination area; and a flow regulating unit including a plurality of projecting portions projecting in a direction approximately along the illumination axis to regulate the flow direction of cooling air, and a fixing portion for fixing the plural projecting portions to one of the sealing portions in the vicinity of the tube spherical portion.

Abstract: A light source apparatus is equipped with a discharge lamp, which has a glass tube that forms a light emitting part and a base member that is coupled thereto, and a mounting apparatus that holds the discharge lamp via the base member. Therein, the base member has a flange part that contacts positioning plate of the mounting apparatus, and a fixed part that is urged with a pressing force that presses the flange part to the positioning plate. Furthermore, the mounting apparatus has a fixing arm that urges the fixed part by a compression coil spring.

Abstract: This light source 1 is provided with a luminescent cylinder 3A housing a luminescent part 2 to generate light; a light guide cylinder 3B connected to the luminescent cylinder 3A on a one end side, and configured to guide the light generated by the luminescent part 2, to an exit window 4 provided on the other end side; and a cylindrical reflective cylinder 9 inserted and fixed between the exit window 4 of the light guide cylinder 3B and a portion connecting the luminescent cylinder 3A and the exit window 4, and having an inner wall surface as a reflective surface 9a to reflect the light.

Abstract: An LED bulb includes a connector for electrically connecting with a power supply, a heat sink disposed on the connector, an LED module mounted the heat sink, and an envelope secured to the heat sink and covering the LED module. The heat sink includes a tubular body, a plurality of first fins extending outwardly from an outer circumference of the tubular body, and a plurality of second fins extending inwardly from an inner circumference of the tubular body.

Abstract: A UV curing lamp has variable resistive ballast provided by at least one resistance alloy wire and a set of switches tapping varying positions along the resistance alloy wire. The variable resistance ballast defines the lamp's maximum operating power consistent with the power supply. The wire in combination with a fan also doubles as thermal ballast provided by air flowing across the wire onto the UV lamp. A detachable reflector in a generally parabolic cylinder shape directs light from the lamp located on the reflector's focal axis. The curing lamp with resistive ballast can be in the form of a handheld unit or as a floor unit with rotating lamps within the housing.

Abstract: An LED lamp includes a circuit board with a plurality of LEDs switch and a lamp base made of heat dispersing material. The lamp base includes a fastening pedestal. The fastening pedestal includes an accommodating member, a shell, and a plurality of heat diffusion walls. The accommodating member defines a cavity configured for receiving the circuit board. The shell encloses the accommodating member. The plurality of heat diffusion walls connect the accommodating member to the shell. Each of two adjacent heat diffusion walls define an outlet.