Abstract: A lamp capable of effectively suppressing increase in the temperature of circuit devices is provided. The lamp includes: an LED module composed of LED chips; a base through which electric power is received; a lighting circuit which includes a circuit device group for generating electric power for causing the LED module to emit light using the electric power received through the base; an inner casing which is a tubular portion made of resin for housing the lighting circuit; and an outer casing which is a tubular portion for housing the inner casing. On the circumferential surface of the inner casing, a protrusion is provided which directly abuts the inner circumferential surface of the outer casing.

Abstract: A network communication system (2) for two-way communication comprises: —at least one group of network devices (11); —at least one command device (20) capable of issuing at least one command signal (SC); 5—coordinating means (40) provided with a network definition memory (41) and with a device status memory (42). A network device, in response to receiving a command signal (SC), sends an acknowledgement signal (SA) to the command device. The coordinating means, in response to receiving a command signal for a 10 network device, watches for the corresponding acknowledgement signal from that network device and, in case of that network device failing to timely send the acknowledgement signal, amends in said device status memory (42) the status information (M(i)) relating to said network device. The coordinating means automatically removes a potentially defective 15 network device from the network definition memory (41) on entry of a network amendment mode.

Abstract: Light sources are presented in which lamp ballast or LED driver circuitry is disposed within a base assembly using integrated boards with components embedded between board layers and or circular flex boards with pot core magnetic components and/or ASICs and thermally conductive board core materials with thermal vias, reflective mirrors, and/or potting materials to conduct heat out through the base to facilitate reduced form factors for lamps and/or LED light sources.

Abstract: A discharge lamp lighting apparatus includes a housing that is formed by a box-shaped housing main body, which has therein a first circuit including both a first connection connector that protrudes toward an opening and a first electronic part group, and a discharge lamp bulb attached to the outside of the housing main body. A housing cover has a heat dissipating metal body on a back surface of a substrate having mounted thereon both a second connection connector that protrudes at a position corresponding to the first connection connector and a second electronic part group having lower heat resistance than the first electronic part group, and that is attached to the opening. The second connection connector is mounted to the first connector when the housing cover is attached to the housing main body.

Abstract: An organic light emitting display device has the function of buffering external impacts so as to improve the resistance of the organic light emitting display device to impact. An electronic device includes the organic light emitting display device. The organic light emitting display device includes: a frame; a first substrate disposed on the frame, a display unit being formed on a surface of the first substrate; a second substrate disposed so as to face the first substrate; a driver integrated circuit (IC) disposed on either the first substrate or the second substrate; and a buffer member formed so as to cover the driver IC.

Abstract: An LED lighting device comprising a plurality of light-emitting diodes (LED) and a power supply that receives alternating-current (AC) power from an input node and provides rectified direct-current (DC) power to the LEDs. The LED lighting device further comprises a capacitive power-factor compensation means and a bridge rectifier, wherein the capacitive power-factor compensation means is electrically downstream from the input node and electrically upstream from the bridge rectifier, and wherein the bridge rectifier is electrically downstream from the capacitive power-factor compensator means and electrically upstream from the LEDs; and a heat sink that contains said power supply, wherein said heat sink comprises a plurality of carriers, on which the LEDs are mounted. The LED lighting device does not include an electronic module that performs digital computation of software.

Abstract: A retrofit light emitting diode (LED) module may include a carrier with at least one LED, a retrofit connection for mechanical and electrical contact-connection to conventional lamp holders, and an electronic system for driving the at least one LED. At least one part of the electronic system is integrated into the carrier, and the electronic system comprises a sensor system. A retrofit LED module system may include at least two retrofit LED modules and at least one control unit which regulates the retrofit LED modules in an adaptive and synchronized manner.

Abstract: An organic light emitting display includes a scan driver configured to sequentially supply a scan signal to scan lines and sequentially supply a light emitting control signal to light emitting control lines, a data driver configured to supply a data signal to data lines, and pixels arranged coupled to the scan lines, the data lines and the light emitting control lines. Each of the pixels includes an organic light emitting diode, a second transistor, a storage capacitor coupled between an i?1th light emitting control line and a gate electrode of the second transistor, a first transistor coupled between an ith scan line, a data line and a first electrode of the second transistor, and a third transistor coupled between the gate electrode and a second electrode of the second transistor.

Abstract: A light emitting device includes: a substrate having opposed first and second main faces; a light emitting element mounted on the first main face of the substrate; and a driver integrated circuit (IC) formed in an area corresponding to a lower side of the light emitting element within the substrate, and adjusting the amount of current applied to the light emitting element. Since the circuit provided to drive a light emitting diode (LED) is integrated within the substrate, a compact light emitting device having an integrated structure can be obtained.

Abstract: A protection circuit is provided for a T8 LED lighting tube, including at least two power transmission connectors and at least two rectification circuits. The power transmission connectors are respectively mounted to opposite ends of the T8 LED tube and each has at least two contacts that are respectively engageable with tube retention connectors formed on opposite ends of a T8 fluorescent light fixture to receive an external AC power. Each rectification circuit is composed of at least one rectifier semiconductor and the two rectification circuits are respectively connected to the contacts of the two power transmission connectors.

Abstract: An object is to suppress luminance variation due to change in the amount of current flowing through a light-emitting element, caused by change in environmental temperature. A monitor circuit for compensating the cathode potential of the light-emitting element in accordance with environmental temperature is provided in the vicinity of a pixel portion in order to compensate a change in properties, due to environmental temperature, of a transistor including an oxide semiconductor layer and the light-emitting element. The monitor circuit includes a monitor power supply line, a monitor transistor including an oxide semiconductor layer, a monitor light-emitting element, a current source circuit, and an amplification circuit that compensates the cathode potential of the light-emitting element. The potential of the monitor power supply line is lower than the potential of a power supply line in the pixel.

Abstract: The display device includes stacked layers including a display element layer and a control layer including a capacitor including an upper electrode layer and a lower electrode layer that face each other in a layer-stacking direction, wherein the upper electrode layer includes a first upper capacitor electrode connecting two circuit elements, a disconnectable portion, and a second upper capacitor electrode connected to the first upper electrode layer through the disconnectable portion, and the lower electrode layer includes a first lower capacitor electrode connecting two circuit elements, a disconnectable portion, and a second lower capacitor electrode connected to the first lower electrode layer through the disconnectable portion. The capacitor has a capacitance each between the first upper capacitor electrode and the second lower capacitor electrode, and the first lower capacitor electrode and the second upper capacitor electrode.

Abstract: This invention discloses a new and advanced light emitting diodes (LEDs) light source module, and more specifically surface mounting LED dice and/or driver circuits on a slim linear Silicon wafer to provide superior heat dissipation capability through eutectic bonding onto a small Silicon base and the overall performance/cost ratio of the LED white light source module by an advanced integrated.

Abstract: A photo-controlled light includes an electrical power input port configured to receive electrical power, a light emitting unit that is connected to the electrical power input port and a photosensitive timer module that connects the light emitting unit to the electrical power input port. The photosensitive timer module includes a photosensitive switch unit including a photosensitive element that is configured to detect a light level that satisfies a luminosity threshold value. The photosensitive timer module also includes a control switch and a timing switch unit.

Abstract: An illumination device having an elongate bulb and an outer casing substantially coextensive with the bulb and surrounding the same. The elongated bulb is a CCFL which generally has a glass bead containing an iron electrode embedded in the center and attached to both ends thus sealing the elongate bulb. The end of the CCFL bulb will have the iron electrode bent over and in contact with an outside surface of the bulb and then have a coil spring connector arranged over the end of the bulb. The coil spring connector contacts the iron electrode thus allowing for electricity to flow through the coil spring connector to the iron electrode and the associated electronic circuitry needed to operate the CCFL bulb.

Abstract: An organic EL display apparatus includes a plurality of pixels and a lens array which includes a light-condensing lens portion and a flat portion disposed on the light-emitting surface side of each pixel. Each pixel includes a light-emitting layer contained between a pair of electrodes. Part of the light emitted from the light-emitting layer is condensed by the light-condensing lens portion. A top surface of the light-condensing lens portion overlies the light-emitting region, and a part of the light-condensing lens portion is located outside the light-emitting region.

Abstract: A light-emitting diode (LED) lamp for producing a biologically-corrected light. In one embodiment, the LED lamp includes a color filter, which modifies the light produced by the lamp's LED chips, to increase spectral opponency and minimize melatonin suppression. In doing so, the lamp minimizes the biological effects that the lamp may have on a user. The LED lamp is appropriately designed to produce such biologically-correct light, while still maintaining a commercially acceptable color temperature and commercially acceptable color rending properties. Methods of manufacturing such a lamp are provided, as well as equivalent lamps and equivalent methods of manufacture.

Abstract: A drive circuit for a light emitting diode, and applications thereof, are disclosed. In one example, the drive circuit includes an input voltage and a ground, and a current control block including a voltage supply connection, a ground connection, a first voltage sense connection, and a second voltage sense connection. The voltage supply connection electrically connects to the input voltage and the ground connection connected to the ground. The drive circuit includes a current sense resistor connected to the first voltage sense connection, a first current adjustment resistor connected between the current sense resistor and the second voltage sense connection, and a second current adjustment resistor connected between the second voltage sense connection and the input voltage. A light emitting diode can connect from a point between the current sense resistor and the first current adjustment resistor to the ground.

Abstract: A light emitting diode (LED) light source module includes a circuit substrate, a driving IC electrically coupled to the circuit substrate and having at least one input terminal and an output terminal, an LED coupled onto the circuit substrate and electrically coupled to an output terminal of the driving IC, and a packaging layer, having a transparent structure shaped by a colloidal solidification, such that the transparent structure is covered outside the driving IC and LED, and the LED light source module covers the driving IC and LED by the transparent structure of the packaging layer, and serves as a light source module of a lamp directly without the need of installing another driving IC to the lamp, and promotes its extensive use in LED lamps.

Abstract: In a backlight device (2), a substrate (21) on which LEDs (22) are mounted is fixed to a bottom section (32) of a case (31) from the outside of the case (31) with the LEDs (22) fitted in openings (32a) in the bottom section (32) of the case (31). As a result, that face of the rear surface of the substrate (21) which excludes a portion on which driver circuits (23) are mounted is in contact with outside air, and this allows heat generated by the LEDs (22) to be dissipated to the outside air through the substrate (21). Thus, the backlight device (2) can dissipate the heat of the LEDs (22) without requiring a conventional heat dissipating mechanism (heat dissipating plate, heat pipe, heat sink, and cooling fan) constituted with a large number of parts to be mounted below the LEDs (22). As a result, the backlight device (2) is reduced in thickness, weight, and cost, with a reduction in light-emitting efficiency of the LEDs (22) minimized.

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: In various embodiments, a lighting device is provided, which may include at least one semiconductor light source, at least one sensor and evaluation electronics functionally connected to the at least one sensor, wherein the evaluation electronics are arranged to trigger at least one action of the lighting device upon at least one predetermined sensor signal of the at least one sensor.

Abstract: An intelligent light fixture facilitates the use of a ‘universal’ light bulb having a wattage rating. A lamp dimmer circuit disposed within the fixture is in electrical communication between the AC line and a socket. A bulb test circuit within the fixture is operative to determine the maximum wattage of the bulb. A controller, also within the fixture includes a wattage select input. The controller is operative to determine the maximum wattage of the bulb using the bulb test circuit, compare the maximum wattage to the wattage select input and, if the maximum wattage is greater than the wattage select input, control the dimmer circuit to ensure that the power delivered to the bulb does not exceed the wattage select input. The bulb test circuit may determine the maximum wattage of the bulb by measuring the resistance of the bulb's filament or alternatively, by temporarily impressing line voltage across the bulb and measuring the current drawn by the bulb's filament.

Abstract: A mechanical turnplate type rotatably dimming device has a bottom part (1) and a front part (7) of a lamp holder, which form a cavity for holding a dimming part. The dimming part comprises a PCB (5) with potentials, an electric brush (4), a transmission unit (3) and another end is elastically contacted with the potential region of the PCB (5). The transmission unit (5) is buckled with the turnplate (25).

Abstract: A plurality of input terminals (4, 4a, 17) provided on a surface of a common electrode substrate (3) which surface is opposed to a TFT substrate (2) are provided so as to be opposed to a plurality of output terminals (6) provided on an external circuit substrate (5). The plurality of input terminals (4, 4a, 17) are overlapped with the plurality of output terminals (6) when the plurality of input terminals (4, 4a, 17) and the plurality of output terminals (6) are viewed in one plane, but the plurality of input terminals (4, 4a, 17) are formed so as not to overlap the TFT substrate (2). The plurality of input terminals (4, 4a, 17) and a drive circuit are electrically connected via a conductor provided between the TFT substrate (2) and the common electrode substrate (3).

Abstract: An IC chip coating material includes first metal oxide particles; a metal alkoxide; an organic solvent; and second metal oxide particles and/or flat particles of a composite oxide, the second metal oxide particles having a composition identical to or different from that of the first metal oxide particles and also having a mean particle size and/or a shape different from that of the first metal oxide particles. Further, a vacuum fluorescent display device includes an IC chip, wherein the IC chip is at least partially coated by a coating material layer including the first metal oxide particles; a metal forming metal alkoxide; and the second metal oxide particles and/or flat particles of a composite oxide.

Abstract: A LED tube includes a translucent or fluorescent tube of substantially the shape and size of a fluorescence tube, inside which one or more LED components and a current control unit are installed. At both ends of the LED tube, there is a pair of contact pins for connecting the light element mechanically and electrically to the tube holders of the fluorescence tube lighting fixture. The tube lamp has a safety unit arranged to prevent a voltage from transferring through the tube lamp from its one end to the other until a voltage supplied from the corresponding tube holder of the lighting fixture to the pair of contact pins has been separately detected at each end of the tube lamp. Inside the LED tube, there is at least one optical line that is arranged to transfer a control or measurement signal associated with the safety unit from one end of the LED tube to the other without capacitive leakage currents.

Abstract: An integrated gas discharge lamp (5), wherein a gas discharge lamp burner (50) and operating electronics (920, 930) for the gas discharge lamp burner (50) are integrated in a lamp, and wherein the operating electronics (920 930) control the power of the gas discharge lamp burner (50) as a function of the burning time (t) thereof in such a way that the level of the light output of the integrated gas discharge lamp (5) follows a target value curve ( ? target ? N ) .

Abstract: A lamp assembly provides both instant light through use of an incandescent/halogen lamp source and an energy saving type light provided by a compact fluorescent lamp source. Both light sources are enclosed within a common envelope or outer bulb. The sensor member monitors a temperature of the cathode and mercury reservoir of the compact fluorescent lamp source in order to determine when to terminate power to the incandescent lamp source.

Abstract: An LED package comprises a substrate, a constant current die, an LED die and an encapsulation body. The substrate has a plurality of internal conductive contacts and a plurality of external conductive contacts. The constant current die is electrically connected to the internal conductive contact, and comprises a constant current circuit and a protection circuit in parallel, wherein the constant current circuit allows a first current to flow through and the protection circuit allows a second current, in an opposite direction to the first current, to flow through. The LED die is electrically connected to the internal conductive contact. The encapsulation body encapsulates the constant current die, the LED die and the internal conductive contacts of the substrate. Having a small volume, the LED package can be applied to a compact lamp and prevents the LED from being damaged. An LED lamp comprising the LED package is also disclosed.

Abstract: A lamp uses a solid state source to pump one or more doped semiconductor nanophosphors to produce a light output of a desired characteristic. The nanophosphor(s) is dispersed in a material, examples of which include liquids and gases. Various nanophosphors are discussed. In the examples, the material with the doped semiconductor nanophosphor(s) dispersed therein appears at least substantially clear when the lamp is off. The exemplary lamp also includes circuitry for driving the solid state source and a housing that at least encloses the drive circuitry. The lamp has a lighting industry standard lamp base mechanically connected to the housing and electrically connected to provide electricity to the circuitry for driving the solid state source.

Abstract: A light bar system for a vehicle compartment includes a circuit board having a plurality of capacitive-type, user-activated switches, an electrical power source coupled to the circuit board, a light emitting diode (LED) coupled to the circuit board, and a light bar affixed to the circuit board. The user-activated switches are coupled to a vehicle accessory to control the level of operation of the vehicle accessory. The most recently actuated one of the user-actuated switches is detected by the circuit board and the circuit board provides a pulse width modulated (PWM) signal to the LED with a duty cycle of the PWM signal based on the most recently actuated switch. A higher duty cycle PWM signal corresponds to a higher setting of the accessory.

Abstract: A lamp uses a solid state source to pump one or more doped semiconductor nanophosphors to produce a light output of a desired characteristic. The nanophosphor(s) is dispersed in a material, examples of which include liquids and gases. Various nanophosphors are discussed. In the examples, the material with the doped semiconductor nanophosphor(s) dispersed therein appears at least substantially clear when the lamp is off. The exemplary lamp also includes circuitry for driving the solid state source and a housing that at least encloses the drive circuitry. The lamp has a lighting industry standard lamp base mechanically connected to the housing and electrically connected to provide electricity to the circuitry for driving the solid state source.

Abstract: A circuit structure of light-emitting diode (LED) lamp includes a combination of at least one LED lamp assembly, a current-limit resistor, a bridge rectifier, a capacitor set, a circuit board, and an electrical connector, by which each LED of at least one LED lamp assembly is at one end in series with a serially-connected resistor individually and then each serial-connected by-pass resistor is in parallel with the former-mentioned electrical structure to form a LED lamp assembly. The present invention provides a better solution which conventional LED lamp cannot be configured with a high voltage power supply. Further, the hardware lay-out of the circuit structure allows for direct connection with an external power source of AC 100-380V, which is fed through the bridge rectifier for regulation and conversion into direct current to be directly coupled to and used by the LED lamp assembly without a voltage-down transformer.

Abstract: Power is stored in a networked light allowing the networked light to send a message over the network providing information that the networked light is turning off if external power is no longer available.

Abstract: A lamp type light emitting device for safety fuse, including a substrate, an electrode layer, a chip set, a wire set, two leads and an encapsulator. The electrode layer is arranged on the substrate and includes a first T-shaped electrode, a second T-shaped electrode, a first stripe electrode and a second stripe electrode. The chip set includes a first resistor chip and a first light emitting chip arranged on the first T-shaped electrode and a second resistor chip and a second light emitting chip arranged on the second T-shaped electrode. The wire set has fuse wires electrically connected the first resistor chip, the first light emitting chip, the first stripe electrode, the second resistor chip, second light emitting chip, and the second stripe electrode. The leads are electrically connected to the first and the second T-shaped electrodes. The encapsulator encapsulates the electrode layer, the chip set and the wire set.

Abstract: A light source (7) with a gas-discharge lamp includes a control module (16) with a driver circuit, an ignition module (17) for producing a substantially high voltage, and a gas-filled burner (18) in which an electric arc is ignited and maintained between two electrodes (19, 20). The control module (16), ignition module (17), and burner (18) are attached to a mutual support system (21) and combined in a single unit. Lighting equipment (1) for a motor vehicle includes at least one light source (7).

Abstract: The invention relates to an elongated power distributor (100) adapted to provide electrical power to an OLED device (104), the power distributor (100) comprising—a set of power cells (102), wherein the power cells (102) are arranged along the power distributor (100), each of the power cells (102) being adapted to provide substantially identical operating currents or voltages to the OLED device (104), and—means for mechanically fixing the power distributor (100) to the OLED device (104).

Abstract: A three-dimensional miniaturized power supply is composed of at least two of a first circuit board and a second circuit board which are assembled in a chamber of a container in a three-dimensional spatial form, wherein an insulation spacing, which is in compliance with an ITE safety regulation, is provided between a circuit of the first circuit board and a circuit of the second circuit board, allowing an area and a volume of the power supply to be miniaturized, such that the power supply can be emplaced in a small container.

Abstract: Various methods of manufacturing a lighting apparatus and embodiments of a modular networked lighting apparatus are disclosed. One method defines a mechanical form factor with a minimum set of electrical connections for a networking module, builds a subassembly of the networked lighting apparatus, the subassembly comprising attachment points compatible with the mechanical form factor for the networking module and contacts for the minimum set of electrical connections for the networking module, installs a networking module into the subassembly of the networked lighting apparatus, the networking module compatible with a selected networking protocol for the networked lighting apparatus, completes the final assembly of the networked lighting module, and marks the networked lighting apparatus to indicate the selected networking protocol for the networked lighting apparatus. In some embodiments, the lighting apparatus may function without the networking module installed.

Abstract: A light-emitting device includes: plural light-emitting elements arrayed in line; and a light-up signal wiring including block wirings that connect the plural light-emitting elements divided into plural blocks being units for controlling turning on and off of the light-emitting elements, that supply electric power for light emission to the light-emitting elements belonging to each of the blocks, and a main wiring that extends from a feeding point and to which the block wirings are connected.

Abstract: An organic light emitting lighting device that includes a transparent substrate, a first electrode layer formed on the substrate, an organic emission layer formed on the first electrode layer, a second electrode line formed of a plurality of second electrode lines disposed in parallel with each other on the organic emission layer, a first fuse unit having one end connected with the first electrode layer, and a plurality of second fuses having one end respectively connected to one end of the plurality of second electrode lines.

Abstract: The present invention provides a rectifying circuit for rectifying AC voltage that is input from an AC source via a phase control type dimmer; a converter for converting DC output voltage of the rectifying circuit and lighting an LED; a positive characteristic feed-forward controlling unit for monitoring the AC voltage and changing the output current of the converter in accordance with a value of the AC voltage; and a positive characteristic feed-forward control limiting unit for, when the AC voltage reaches a predetermined value, limiting control performed by the positive characteristic feed-forward controlling unit.

Abstract: A plasma display apparatus having a coupling structure between a base chassis and a spread sheet to reduce EMI emission is provided. The plasma display apparatus includes a panel, a driving circuit, a base chassis, a spread sheet, and a conductive gasket through which the spread sheet is coupled to the base chassis.

Abstract: Certain embodiments provide an LED lighting equipment including a lighting main body. An LED power device has a DC power source and a DC-DC converter having an input terminal connected to the DC power source and the DC-DC converter having an output terminal. An LED light source has a board and a plurality of LED packages; each including a plurality of LED chips connected in series. The LED packages are mounted on the board and connected in series to the output terminal of the DC-DC converter.

Abstract: A light-emitting device includes: an array of light-emitting elements connected to a light-up signal line to supply a current for lighting up; an array of memory elements provided so as to correspond to the respective light-emitting elements, connected through respective resistances to a memory signal line to supply a signal to designate a light-emitting element to be lighted up, and memorizing by getting turned on that a corresponding light-emitting element is to be lighted up; and an array of switch elements provided so as to correspond to the respective memory elements, electrically connected to the respective memory elements, connected to a transfer signal line to supply signals to set so as to allow a sequential shift of an ON state from one side end to the other end side, and causing the respective memory elements to be likely to be set in an ON state by getting turned on.

Abstract: This compact fluorescent lamp comprises a discharge tube arrangement with at least one discharge tube. The tube is formed of glass, encloses a discharge volume filled with a discharge gas and has a fluorescent phosphor coating disposed on the inner surface of the tube. The tube forms a continuous arc path and the tube is provided with electrodes disposed at each end of the arc path. The lamp also comprises a ballast circuit connected to the electrodes for controlling the current in the tube and a lamp base for connecting said lamp to a power supply through a socket. The lamp is enclosed in an outer envelope comprising a substantially spherical portion enclosing the tube arrangement and an elongated end portion enclosing the ballast circuit. The end portion of the outer envelope is closed and sealed by a sealing means of the same material as the material of the outer envelope. The sealing means is connected to the envelope in a hermetically sealing way.

Abstract: In one embodiment, a lamp with a ferrule includes a substrate to support a light emitting element and a wire insertion portion formed therein. A support portion to arrange the substrate is formed in one end portion of a base body. A through-hole is formed in the support portion corresponding to the wire insertion portion. A concave container portion is provided in the other end portion of the base body to accommodate a circuit board to mount electric parts. An insulating case is arranged between the circuit board and the concave container portion. The insulating case includes a protection element inserted in the through-hole and the wire insertion portion. The protection element is projected at least to inside of the wire insertion portion. A ferrule for supplying electric power to the light emitting element is provided in the other end portion of the base body.

Abstract: Provided is a lighting unit and a discharge lamp each of which is capable of causing a capacitor to break down by heat generated in a heat generating component, so that circuit operation is safely terminated without any additional cost. A compact self-ballasted fluorescent lamp is provided with a lighting unit (50) housed in a case. The lighting unit (50) causes an arc tube to emit light and is composed of a plurality of electronic components, including a rectifier/smoothing circuit portion, an inverter circuit portion having transistors (Q1 and Q2), a resonant circuit portion, and a preheating circuit portion having a positive temperature coefficient element. Among the plurality of electronic components, the transistors (Q1 and Q2) and the positive temperature coefficient element generate excessive heat when, for example, the lamp is operated at the end of electrode's life.

Abstract: A power supply module is formed as a package body suitable to be assembled in a light emitting diode illumination apparatus. The power supply module includes a light emitting diode driver, a feedback control unit, a current converting unit, and a package material. The light emitting diode driver, the feedback control unit, and the current converting unit are packaged integrally by the package material. The current converting unit is suitable for supplying power to the light emitting diode driver and the feedback control unit. The feedback control unit is suitable to receive a feedback signal from a light source module disposed outside of the package body and provide an adjusting signal to the light emitting diode driver, so as to make the light emitting diode driver to adjust the magnitude of a control current and provide the control current to the light source module.