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TOSHIBA LIGHTING & TECHNOLOGY CORPORATION

TOSHIBA LIGHTING & TECHNOLOGY CORPORATION Patent applications
Patent application numberTitlePublished
20120127741LAMP UNIT AND LIGHTING FIXTURE - According to one embodiment, a lamp unit includes a light-emitting module, a housing, a lighting circuit, and a heat conductive sheet. The light-emitting module includes a light emitting portion having a semiconductor light-emitting element formed thereon. The housing includes a case opening in the direction of irradiation of light, and a base on a side of the case opposite from the direction of irradiation of the light. The light-emitting module is mounted on a surface of the base on the case side. A base surface is formed on an outer surface of the base on the side opposite from the case side, and a depressed portion is formed on the base surface. The lighting circuit is accommodated in the housing. The heat conductive sheet allows resilient deformation, and is disposed in the depressed portion.05-24-2012
20120127740LUMINAIRE - According to one embodiment, a luminaire includes a luminaire body, a socket, and a radiating member. The luminaire body has a cylindrical body part, and a lamp unit is housed within the body part. The luminaire body is inserted, from an upper side of the body part, into an embedding hole provided in an installation target section, and the luminaire body is thus arranged on the installation target section. The socket is arranged within the body part of the luminaire body, and the lamp unit is loaded therein. The radiating member is arranged on the upper side of the body part of the luminaire body and is formed with a smaller dimension than a maximum outer dimension of the body part of the luminaire body. The lamp unit loaded in the socket contacts the radiating member.05-24-2012
20120127739LAMP UNIT AND LIGHTING FIXTURE - According to one embodiment, a lamp unit includes a light-emitting module, a lighting circuit, and a housing. The light-emitting module includes a light emitting portion having a semiconductor light-emitting element. The lighting circuit lights the semiconductor light-emitting element. The housing includes a case opening in the direction of irradiation of light, and a base on a side of the case opposite from the direction of radiation of the light. The lighting circuit is accommodated in the case, and the light-emitting module is mounted on the base at a position closer to the base with respect to the position of the lighting circuit.05-24-2012
20120127731LUMINAIRE - According to one embodiment, a luminaire includes a socket, a radiating member, and a reflecting member. The socket is adapted for loading a lamp unit therein. The lamp unit loaded in the socket contacts the radiating member. The reflecting member is sandwiched and fixed between the socket and the radiating member.05-24-2012
20120119651LED LIGHTING DEVICE AND LED LIGHTING EQUIPMENT - In one embodiment, a lighting device includes an LED lighting circuit and an LED load constituted by a plurality of parallel circuits formed by connecting a plurality of LED elements in parallel, and a series circuit formed by connecting the parallel circuits. The series circuit is connected with an output terminal of the lighting device. In case one LED element becomes open fault mode in one of the parallel circuit, the other LED elements continue lighting. In case two or more LED elements become the open fault mode, the other LED elements also become the open fault mode, and all the LED elements turn off.05-17-2012
20120099309LIGHT EMITTING DEVICE AND ILLUMINATION DEVICE - According to one embodiment, a light emitting device includes a substrate, a lead pattern and a plurality of mounting pads, and a plurality of light emitting elements. The substrate includes an insulating layer. The lead pattern and the plurality of mounting pads are formed on a surface of the substrate. The lead pattern and the plurality of mounting pads are conductive. The plurality of mounting pads are configured not to electrically conduct. The lead pattern is configured to electrically conduct. The plurality of light emitting elements are mounted on the mounting pads and electrically connected to the lead pattern.04-26-2012
20120081897LUMINAIRE - A luminaire includes a plurality of light-emitting elements, and an optical member. The optical member is formed a refractive area of a Fresnel lens for each of the light-emitting elements individually and a reflective area of the Fresnel lens between the refractive areas.04-05-2012
20120075836LIGHT-EMITTING DEVICE AND LIGHTING APPARATUS - A light-emitting device includes a substrate, and a plurality of light-emitting elements mounted on the substrate. The light-emitting elements are placed to meet conditions that the number B of light-emitting elements per unit area (cm03-29-2012
20120069616SWITCHING POWER SUPPLY DEVICE, AND ADJUSTABLE POWER SUPPLY SYSTEM INCLUDING THE SAME - According to one embodiment of the invention, there is provided a switching power supply device including a rectifying circuit and a switching operation conversion circuit. The rectifying circuit receives a phase-controlled alternating voltage to rectify to a direct voltage. The switching operation conversion circuit starts up by being applied with the direct voltage, and includes a normally on type switching element and an off driving circuit. The normally on type switching element passes an input current, and the off driving circuit turns off the switching element when the input current reaches a prescribed value. The switching operation conversion circuit converts the direct voltage to an output voltage different from the direct voltage by repeating a switching operation of turning on and off the switching element.03-22-2012
20120068606CURRENT LIMITING CIRCUIT, AN LED MODULE AND AN LED ILLUMINATING DEVICE - A current limiting circuit includes a power input terminal that is connected to an output terminal of a direct current power source to which an output capacitor is connected in parallel; a power output terminal to which an LED is connected; and a current limiting unit that supplies to the LED a load current to which an upper current value is set, supplies to the LED a load current lower than the upper current value at a normal condition, and supplies to the LED a load current higher than the load current of the normal condition and equal to or lower than the upper current value at an abnormal condition.03-22-2012
20120063148LIGHT-EMITTING MODULE AND LIGHTING APPARATUS - A light-emitting module includes a substrate having a front surface side component mounting surface and a rear surface side flat heat dissipating surface. Light-emitting elements are arranged to protrude at a central portion of the component mounting surface and radiate light at least man upper surface direction and in a direction along the component mounting surface. A lighting circuit component is electrically connected to the light emitting elements by a wiring pattern arranged on the substrate and which is arranged closer to the peripheral edge side of the substrate than the light emitting elements: A connector for power supply connection is arranged closer to the peripheral edge side of the substrate than the light emitting elements on the component mounting surface of the substrate and is electrically connected to the lighting circuit component.03-15-2012
20120056560DC POWER SOURCE UNIT AND LED LAMP SYSTEM - A DC power source unit 03-08-2012
20120026738LIGHT-EMITTING APPARATUS AND ILLUMINATION APPARATUS - According to one embodiment, a light-emitting apparatus includes a substrate, an attachment member, and a mechanical fixing component. The substrate has light-emitting elements mounted on one surface side thereof. The attachment member includes a concave portion in which the substrate is arranged with a gap between the substrate and a side circumference of the concave portion. The mechanical fixing component includes a pressure portion that is in contact with the one surface side of the substrate, the mechanical fixing component being configured to hold the substrate in the concave portion of the attachment member by elastic pressing force of the pressure portion acting in a direction from the one surface side toward the other surface side of the substrate.02-02-2012
20120019166POWER SOURCE UNIT FOR LED LAMPS, AND LED LAMP SYSTEM - A dedicated power source for LED lamps capable of reliably detecting attachment of an LED lamp is provided.01-26-2012
20120014110LIGHT EMITTING APPARATUS AND ILLUMINATION APPARATUS - A light emitting apparatus comprising a light reflecting surface made of a metal, a light emitting element which has an electrode and is mounted on the light reflecting surface, and a sealing member which covers the light reflecting surface and the light emitting element. The sealing member has translucency and oxygen gas permeability of 40000 cc/m01-19-2012
20120008318LIGHTING APPARATUS - A lighting apparatus includes a red LED; a green LED; a blue LED; and a white LED made up of a blue light-emitting element and a yellow phosphor, wherein the red LED, the green LED, the blue LED, and the white LED generate 26 to 38%, 35 to 50%, 0 to 2%, and 12 to 33% of light, respectively, and white light obtained by additive color mixing of light from the red, green, blue, and white LEDs has a correlated color temperature of 2800 K or more to less than 3500 K, a deviation of 0.02 or below in absolute value, and a color gamut area ratio of 120% or more to 140% or less. Consequently, the lighting apparatus can radiate an illuminating light which makes colors look vivid.01-12-2012
20120007521ILLUMINATING DEVICE AND CONTROLLING METHOD THEREOF - To a constant-current power supply whose output current can be variably set, light emitting modules can be connected in parallel. A control unit recognizes connection information outputted from an information output unit provided in each of the light emitting modules and varies the output current of the constant-current power supply. Drive can be controlled in response to a state of the connected light emitting modules such as the connecting number of light emitting modules.01-12-2012
20120007517LIGHT EMITTING MODULE AND ILLUMINATING DEVICE - To a constant-current power supply whose output current can be variably set, light emitting modules can be connected in parallel. A control unit recognizes connection information outputted from an information output unit provided in each of the light emitting modules and varies the output current of the constant-current power supply. Drive can be controlled in response to a state of the connected light emitting modules such as the connecting number of light emitting modules.01-12-2012
20120002429SOCKET DEVICE, LAMP DEVICE AND LIGHTING DEVICE - There is provided a lighting fixture capable of efficiently radiating heat of a lamp device attached to a socket device.01-05-2012
20120002425LIGHT-EMITTING MODULE AND LUMINAIRE - According to one embodiment, a light-emitting module includes a substrate, a light-emitting element, a light distribution control member, and a cover. The substrate includes a surface on which a thermally conductive portion and a interconnect pattern are formed. The light-emitting element is thermally connected to the thermally conductive portion, is electrically connected to the interconnect pattern, and generates heat while emitting light. The light distribution control member is thermally connected to the thermally conductive portion at a periphery of the light-emitting element, includes a ridge portion formed on an exit side where light emitted from the light-emitting element is projected, and is configured to control distribution of the light emitted from the light-emitting element. The cover is thermally connected to the ridge portion and configured to pass therethrough the light emitted from the light-emitting element.01-05-2012
20120001215LIGHT-EMITTING MODULE AND ILLUMINATION DEVICE - According to one embodiment, a light-emitting module includes a module substrate, a light-reflecting layer, and a light-emitting element. The light-reflecting layer is superposed on the module substrate and has a reflection ratio higher than the reflection ratio of the module substrate. The light-emitting element is mounted on the module substrate. The light-reflecting layer includes a copper layer, a copper plating layer which covers the copper layer, and a metal layer which is superposed on the copper plating layer and reflects light emitted from the light-emitting element.01-05-2012
20110317416LIGHT-EMITTING MODULE AND LIGHTING APPARATUS WITH THE SAME - According to one embodiment, a light-emitting module includes a module substrate, a first wiring pattern provided on the module substrate and including a common wire connecting portion, a second wiring pattern provided on the module substrate and including a first wire connecting portion, a second wire connecting portion, and a middle pattern portion, a first light-emitting element group arranged between the common wire connecting portion and the first wire connecting portion and including semiconductor light-emitting elements connected in series and being electrically connected to the common wire connecting portion and the first wire connecting portion, and a second light-emitting element group arranged between the common wire connecting portion and the second wire connecting portion and including semiconductor light-emitting elements connected in series and being electrically connected to the common wire connecting portion and the second wire connecting portion.12-29-2011
20110316494SWITCHING POWER SUPPLY DEVICE, SWITCHING POWER SUPPLY CIRCUIT, AND ELECTRICAL EQUIPMENT - According to an embodiment of the invention, there is provided a switching power supply device including an integrated body and a plurality of external terminals. In the integrated body, a first switching element, a constant current element, and a diode are connected in series. The plurality of external terminals include a first external terminal connected to a main terminal of an element disposed on one end side of the integrated body and a second external terminal connected to a main terminal of an element disposed on another end side of the integrated body.12-29-2011
20110316445LED LAMP SYSTEM - An LED lamp system which suppresses flickering of an LED element is provided.12-29-2011
20110316444POWER SOURCE UNIT AND LIGHTING FIXTURE - According to one embodiment, there is provided a lighting fixture including a fixture body, straight-tube type LED lamps each having semiconductor light emitting elements, and a dedicated power source for lighting the semiconductor light emitting elements. The dedicated power source outputs current having a trapezoidal waveform a period of a peak portion of which is 54% or more of one cycle, and thus lights the semiconductor light emitting elements.12-29-2011
20110310609LIGHT EMITTING DEVICE AND ILLUMINATION APPARATUS - According to one embodiment, a light emitting device includes: a substrate a back face side of which is disposed on a mounting member; a plurality of light emitting elements mounted on a surface side of the substrate; and a power supply terminal provided on the surface side of the substrate and electrically connected to the light emitting elements. The power supply terminal is connected to electrical connecting units by elastic pressing force directed from the surface side of the substrate to the mounting member side. A mechanical fixing unit has a pressing portion brought into contact with the surface side of the substrate. The mechanical fixing units fix the substrate to the mounting member with use of elastic pressing force of the pressing portions directed from the surface side of the substrate to the mounting member side.12-22-2011
20110310606LAMP HAVING OUTER SHELL TO RADIATE HEAT OF LIGHT SOURCE - A lamp includes an outer shell having heat conductivity, a base provided in the outer shell, and a cover provided in the outer shell. The outer shell has a light source support, and a heat radiating surface exposed to the outside of the outer shell. The light source support is formed integral with the heat radiating surface. A light source is supported on the light source support. The light source is heated during lighting, and thermally connected to the light source support. The light source is covered with the cover.12-22-2011
20110309386LAMP HAVING OUTER SHELL TO RADIATE HEAT OF LIGHT SOURCE - A lamp includes an outer shell having heat conductivity, a base provided in the outer shell, and a cover provided in the outer shell. The outer shell has a light source support, and a heat radiating surface exposed to the outside of the outer shell. The light source support is formed integral with the heat radiating surface. A light source is supported on the light source support. The light source is heated during lighting, and thermally connected to the light source support. The light source is covered with the cover.12-22-2011
20110309381LIGHT-EMITTING DEVICE AND LIGHTING APPARATUS - According to one embodiment, a light-emitting device includes a series circuit, a substrate, and a sealing member. The series circuit includes a plurality of parallel circuits each including a plurality of light-emitting elements connected in parallel. The plurality of parallel circuits are connected in series. A plurality of groups are provided on the substrate. Each of the groups includes at least one of the light-emitting elements in the parallel circuit. The light-emitting elements are arranged in a divided manner according to each of the groups. The sealing member covers at least one of the light-emitting elements.12-22-2011
20110305017LIGHT-EMITTING MODULE AND ILLUMINATION DEVICE - According to one embodiment, a light-emitting module comprises a module substrate, a light-reflecting layer, a plurality of light-emitting elements, and a sealing material. The module substrate includes an insulating layer formed of at least one of a glycidyl ester-type, linear aliphatic epoxide-type, and alicyclic epoxide-type resin. The light-reflecting layer is superposed on the insulating layer, and includes a silver light-reflecting surface. The light-emitting elements are mounted on the module substrate. The sealing material has light transmittance, and superposed on the insulating layer to cover the light-reflecting layer and the light-emitting elements.12-15-2011
20110305013LIGHTING APPARATUS - in one embodiment, a lighting apparatus includes a light source unit having light emitting units arranged in a longitudinal direction. A transparent cover member is formed in a substantially straight pipe shape and having openings at both ends for housing the light source unit along the longitudinal direction. The cover member has a higher thermal expansion coefficient than that of the light source unit. End plate members are fixed to the both ends of the light source unit and close the openings at the both ends of the cover member.12-15-2011
20110303927LIGHT EMITTING MODULE AND ILLUMINATION APPARATUS - A light emitting module (12-15-2011
20110291594LAMP DEVICE AND LIGHTING FIXTURE - In a lamp device 12-01-2011
20110291151LIGHT EMITTING DEVICE AND LIGHTING APPARATUS - According to one embodiment, a light emitting device includes a ceramics substrate, a metallic thermally-conductive layer formed on the substrate in which the substrate involves no electric connection, a light emitting element mounted on the metallic thermally-conductive layer, and a metallic bonding layer interposed between the metallic thermally-conductive layer and the light emitting element to bond the light emitting element to the metallic thermally-conductive layer.12-01-2011
20110279062DC POWER SUPPLY UNIT AND LED LIGHTING APPARATUS - In one embodiment, a DC power supply unit includes a DC power supply source; a load circuit connected to an output end of the DC power supply source; a load state detection device to detect a load voltage or an electric quantity corresponding to the load voltage; and a control device to receive the detected output of the load state detection device. The control device controls a maximum output voltage of the DC power supply source so that the voltage difference between the maximum output voltage of the DC power supply source and the load voltage at the time of normal operation falls within a predetermined range in which arc discharge is suppressed.11-17-2011
20110278632LIGHT EMITTING DEVICE AND ILLUMINATION DEVICE - According to one embodiment, a light emitting device includes a substrate, a light emitting element and connectors. The substrate has a surface and a back face, and power supply terminals are formed on the surface. The light emitting element is mounted on the surface of the substrate. The connector includes a contact portion coming into contact with, the power supply terminal on the surface side of the substrate and a connector terminal having a wire connection portion projecting on the back face side of the substrate, and a power supply wire is connected to the wire connection portion of the connector terminal.11-17-2011
20110273880ILLUMINATION APPARATUS HAVING A PLURALITY OF SEMICONDUCTOR LIGHT-EMITTING DEVICES - An illumination apparatus includes a plurality of semiconductor light-emitting devices, a reflective layer, a plurality of conductor parts and a translucent adhesive layer. Each of the semiconductor light-emitting devices has a translucent substrate, and a semiconductor light-emitting layer formed on the substrate. The reflective layer has a size on which semiconductor light-emitting devices are arranged at intervals. The conductor parts are provided on the reflective layer, and electrically connected to the semiconductor light-emitting devices. The adhesive layer bonds the substrates of the semiconductor light-emitting devices onto the reflective layer, and thereby holds the semiconductor light-emitting devices on the reflective layer.11-10-2011
20110254023LUMINAIRE AND LIGHT-EMITTING APPARATUS WITH LIGHT-EMITTING DEVICE - According to one embodiment, the light-emitting apparatus is provided with a substrate, a plurality of light-emitting devices, and a phosphor layer. The plurality of light-emitting devices are mounted on the substrate. The phosphor layer is formed of a translucent resin containing a phosphor and includes a phosphor portion that is formed in a convex shape and covers a predetermined number of the light-emitting device. Bases of the adjacent phosphor portions are formed by being linked with one another.10-20-2011
20110235335LIGHTING APPARATUS - A lighting apparatus according to an embodiment includes an optical unit and a body. The Optical unit includes a light emitting module that has a light emitting element, a reflector that controls distribution of light from the light emitting module, and a unit supporting member that supports the light emitting module and the reflector. A plurality of optical units are mounted to the apparatus body such that each optical unit is detachable. And the body includes an irradiating portion that has an opening through which the optical units irradiate light.09-29-2011
20110235334OPTICAL UNIT AND LIGHTING APPARATUS - According to one embodiment, an optical unit includes a light emitting module having a light emitting element, a supporting substrate supporting the light emitting module, a reflector controlling distribution of light from the light emitting module, and a heat sink thermally connected to the supporting substrate.09-29-2011
20110234080LIGHT-EMITTING DEVICE AND ILLUMINATION DEVICE - According to one embodiment, a light-emitting device includes a substrate, a light reflection layer, a plurality of light-emitting elements, and a sealing member. The substrate includes an insulating layer constituted of epoxy resin using an acid anhydride as a hardening agent or one of a polyimide resin, a polyethylene terephthalate resin, and a fluororesin. The light reflection layer is formed on the insulating layer. The light reflection layer includes a metallic light-reflecting surface higher in optical reflectance than the insulating layer. The light-emitting elements are mounted on the light-reflecting surface. The sealing member is constituted of a material having gas permeability and translucency, and is formed on the insulating layer to seal the light reflection layer and the light-emitting elements.09-29-2011
20110222264LIGHT EMITTING DEVICE AND ILLUMINATION APPARATUS - According to one embodiment, a light emitting device which is attached to an illumination apparatus and radiates light having a correlated color temperature of 2900 to 3600K is provided. The light emitting device includes a substrate, blue light emitting LED elements and red light emitting LED elements mounted on the substrate, and a wavelength converting unit. The red light emitting LED elements have a luminous intensity of 0.2 to 2.5 times as large as that of the blue light emitting LED elements at normal use temperature in a state where the light emitting device is attached to the illumination apparatus. The wavelength converting unit is excited by light emitted from the blue light emitting LED elements and converts the light to light having a peak wavelength within a range of 500 to 600 nm.09-15-2011
20110216547LIGHTING APPARATUS - In one embodiment, a lighting apparatus includes a base electrically grounded and a substrate provided in the base in which an emitting element is mounted. A transmissive cover is arranged in the front side of the substrate, and a metallic holding element is fixed to the base for supporting a peripheral portion of the cover by pressing the peripheral portion from the front side.09-08-2011
20110211346LIGHTING FIXTURE - According to one embodiment, a lighting fixture includes a fixture body and a plurality of light-emitting modules. A plurality of light-emitting module arrangement portions are formed on the surface of the fixture body. The light-emitting modules are arranged on the light-emitting module arrangement portions of the fixture body and annularly arranged so that a space is formed at the center area of the fixture body. Semiconductor light-emitting elements are disposed on the surface of the light-emitting module, and a wiring connector is arranged at the space side of the substrate.09-01-2011
20110210664SELF-BALLASTED LAMP AND LIGHTING EQUIPMENT - According to one embodiment, a self-ballasted lamp includes a light-emitting module, a base body, a first insulating member, a screw, a second insulating member, a cap and a lighting circuit. The light-emitting module has a light-emitting portion including semiconductor light-emitting elements mounted on a surface of a metallic substrate. The base body is made of metal and the light-emitting module is arranged on one end side of the base body. The first insulating member is interposed between the substrate of the light-emitting module and the base body. The substrate of the light-emitting module is fixed to the base body with the screws. The second insulating member is interposed between the screws and the substrate of the light-emitting module. The cap is provided at the other end side of the base body. The lighting circuit is housed inside the base body.09-01-2011
20110199772LIGHT-EMITTING DEVICE AND ILLUMINATION DEVICE - According to one embodiment, a light-emitting device comprises a substrate on a surface of which a light-emitting element is mounted, a light reflection layer formed on a second area of the surface of the substrate other than a first area on which the light-emitting element is mounted, and a sealing member sealing the light-emitting element. An engagement protrusion part protruding toward the sealing member is provided at an edge part of the light reflection layer at which the light reflection layer is in contact with the area on which the light-emitting element is mounted. The engagement protrusion part juts out into the sealing member to prevent exfoliation of the sealing member.08-18-2011
20110199766LIGHT-EMITTING DEVICE AND ILLUMINATION DEVICE - According to one embodiment, a light-emitting device comprises a substrate on which a plurality of light-emitting elements are arranged and mounted in two lines; and sealing members of two lines each sealing the plurality of light-emitting elements of each line. A distance between the lines of the sealing members is equal to 0.5 times or more but 2 times or less a width of the sealing member of each line.08-18-2011
20110199021LIGHT-EMITTING DEVICE AND LIGHTING APPARATUS PROVIDED WITH THE SAME - According to one embodiment, a light-emitting device includes a substrate including an insulating surface, a plurality of light-emitting elements mounted on the surface of the substrate and electrically connected to each other, a positive power feeding conductor and a negative power feeding conductor mounted on the surface of the substrate to feed power to the light-emitting elements, lead-out terminals leading from the power feeding conductors, to the outside of an mounting area of the light-emitting elements, and an anti-noise part connected to the lead-out terminals and arranged outside the mounting area.08-18-2011
20110182073ILLUMINATION DEVICE WITH SEMICONDUCTOR LIGHT-EMITTING ELEMENTS - An illumination device includes a base board, an insulator, a conductor, a plurality of semiconductor light-emitting elements and a light-transmissive sealing member. The base board includes a surface and projection portions. The projection portion is formed to become gradually thicker from its end toward the surface of the base board. The insulator is formed on the surface. The conductor is formed on the insulator. The semiconductor light-emitting elements are mounted on the projection portions. The semiconductor light-emitting elements are electrically connected to the conductor via connection members. The sealing member covers the insulator, the projection portions, the semiconductor light-emitting elements and the connection members.07-28-2011
20110182067ILLUMINATION APPARATUS - According to one embodiment, an illumination apparatus is provided with a substrate, a radiator, a lens, a lens holder and a metal component. A wiring layer is formed on the front face of the substrate and semiconductor light emitting elements are mounted on the wiring layer. The rear face of the substrate is attached to the radiator. The lens controls light emitted from the semiconductor light emitting elements. The lens holder is made insulative. The lens holder is provided with a holder portion for holding the lens and an attachment base to be attached to the radiator by way of the substrate. The metal component is attached to the radiator from the front face of the attachment base of the lens holder by way of the attachment base.07-28-2011
20110181198LED LIGHTING DEVICE AND ILLUMINATION APPARATUS - According to one embodiment, an LED lighting device includes a DC source, a non-insulated step-down chopper and a light emitting diode. The non-insulated step-down chopper includes: a first circuit in which a switching element, a current detecting impedance element and an inductor are connected in series to each other; a second circuit in which the inductor and a freewheel diode are connected in series to each other; and a control portion for controlling the switching element. A power portion including the switching element and the control portion are constituted by a single package IC, and the current detecting impedance element and inductor are attached to the outside of the IC.07-28-2011
20110175548LIGHTING APPARATUS - According to one embodiment, a lighting apparatus includes a conductive main body at a ground potential, a light-emitting device in the main body, including an insulative substrate, a plurality of light-emitting elements mounted on a front side of the substrate, a power feeding wiring electrically connecting the light-emitting elements, and a conductor layer on a backside of the substrate, electrically connected to the power feeding wiring at a potential higher than a ground potential, and a lighting control device configured to supply power to the light-emitting device.07-21-2011
20110156613LIGHTING APPARATUS - According to one embodiment, a lighting apparatus includes a conductive main body at a ground potential, a light-emitting device in the main body, and a lighting control device configured to supply power to the light-emitting device. The light-emitting device includes a substrate including an insulation layer, and a radiation layer with a thermal conductivity, formed of conductive material and laminated on the insulation layer, a plurality of light-emitting elements mounted on the radiation layer, and a power supply wiring configured to electrically connect the light-emitting elements and to make the radiation layer electrically nonconductive.06-30-2011
20110156569LAMP HAVING OUTER SHELL TO RADIATE HEAT OF LIGHT SOURCE - A lamp includes an outer shell having heat conductivity, a base provided in the outer shell, and a cover provided in the outer shell. The outer shell has a light source support, and a heat radiating surface exposed to the outside of the outer shell. The light source support is formed integral with the heat radiating surface. A light source is supported on the light source support. The light source is heated during lighting, and thermally connected to the light source support. The light source is covered with the cover.06-30-2011
20110148322ILLUMINATING DEVICE - To a constant-current power supply whose output current can be variably set, light emitting modules can be connected in parallel. A control unit recognizes connection information outputted from an information output unit provided in each of the light emitting modules and varies the output current of the constant-current power supply. Drive can be controlled in response to a state of the connected light emitting modules such as the connecting number of light emitting modules.06-23-2011
20110109241LED LIGHTING DEVICE AND ILLUMINATING DEVICE - According to one embodiment, an LED lighting device comprises at least one normally-on type switching element, an output generation unit that generates DC output by an on-off operation of the switching element, a semiconductor light emitting element that is lit by the DC output generated by the output generation unit, and a driving control unit that causes the switching element to perform an off operation using a current passed through the semiconductor light emitting element.05-12-2011
20110101384LIGHT-EMITTING DEVICE, METHOD OF MANUFACTURING LIGHT-EMITTING DEVICE, AND ILLUMINATION DEVICE - According to one embodiment, a light-emitting device includes a substrate, a plurality of pads and a plurality of light-emitting elements. The pads has electric conductance, and are arranged on the substrate. A reflecting layer which is formed by electroplating is provided on a surface of each of the pads. The light-emitting elements are mounted on the pads. A depressed part is left on the substrate. The depressed part is formed on the substrate by removing a pattern on the substrate, by which the pads are electrically connected.05-05-2011
20110089806LIGHT-EMITTING ELEMENT LAMP AND LIGHTING EQUIPMENT - The present invention provides a light-emitting element lamp 04-21-2011
20110089805LIGHT-EMITTING APPARATUS AND LUMINAIRE - According to one embodiment, a light-emitting apparatus includes an insulating base made of ceramics, an obverse metallic component dividedly arranged on the front surface of the insulating base, semiconductor light-emitting elements mounted on the obverse metallic component, and a reverse metallic component arranged on a back surface of the insulating base and having a thickness same as or smaller than a thickness of the obverse metallic component and a volume equal to 50% or larger of a volume of the obverse metallic component.04-21-2011
20110074291LIGHT-EMITTING MODULE, SELF-BALLASTED LAMP AND LIGHTING EQUIPMENT - A light-emitting module includes a module substrate, semiconductor light-emitting elements and a connection substrate. On one face of the module substrate, a conductive layer is formed. The semiconductor light-emitting elements and the connection substrate are mounted on the conductive layer of the module substrate. Electric wires, which extend from a lighting circuit, are connected to the connection substrate. Power is supplied to the semiconductor light-emitting elements through the connection substrate and the conductive layer of the module substrate.03-31-2011
20110074290SELF-BALLASTED LAMP AND LIGHTING EQUIPMENT - A self-ballasted lamp includes: a base body; a light-emitting module and a globe which are provided at one end side of the base body; a cap provided at the other end side of the base body; and a lighting circuit housed between the base body and the cap. The light-emitting module has light-emitting portions each using a semiconductor light-emitting element, and a support portion projected at one end side of the base body, and the light-emitting portions are disposed at least on a circumferential surface of the support portion. A light-transmissive member is interposed between the light-emitting module and an inner face of the globe.03-31-2011
20110074271LAMP AND LIGHTING EQUIPMENT - In one embodiment, a lamp includes a thermal conductive hollow base body having a concave container portion, an opening portion formed at one end portion so as to communicate with the container portion and a substrate support portion formed at a peripheral portion of the opening portion. A substrate is formed of one of a thermal conductive metal plate and a thermal conductive insulating plate and including a semiconductor lighting element mounted on one surface. A peripheral portion of the other surface of the substrate is fixed to the substrate support portion so as to cover the opening portion in a thermally conductive state therebetween. A power supply device is accommodated in the container portion of the base body to light on the semiconductor lighting element. A base is provided at the other end portion side of the base body and electrically connected with the power supply device.03-31-2011
20110074269SELF-BALLASTED LAMP AND LIGHTING EQUIPMENT - A base body having a base body portion and a plurality of heat radiating fins disposed on the circumference of the base body portion is provided. On one end side of the base body, a light-emitting module having semiconductor light-emitting elements, and a globe that covers the light-emitting module are provided. A cap is provided on the other end side of the base boy. A lighting circuit is housed between the base body and the cap. The lamp total length from the globe to the cap is 70 to 120 mm, and the area of a surface of the base body which is exposed to the outside per 1 W of power charged to the light-emitting module is 20.5 to 24.4 cm03-31-2011
20110068706LED LIGHTING DEVICE AND ILLUMINATION APPARATUS - The present invention provides an LED lighting device including: a rectifying circuit having AC input ends connected to an AC source; a converter which has input ends connected to DC output ends of the rectifying circuit and output ends, to which an output capacitor is connected in parallel, connected to an LED, and lights the LED; a control unit for changing continued DC output current of the converter in accordance with a dimming degree; and a bypass circuit which is connected to the output ends of the converter in parallel with the output capacitor and makes bypass current flow, the bypass current being larger than lighting current, which flows through the LED, at least in the vicinity of a dimming lower limit.03-24-2011
20110068674LIGHT-EMITTING DEVICE AND ILLUMINATION DEVICE - According to one embodiment, a light-emitting device includes a substrate including power-supply conductors, a frame member, and a sealing member. The power-supply conductors are formed on the substrate. A plurality of light-emitting elements including electrodes are mounted on the substrate. The electrodes of the light-emitting elements adjacent to the power-supply conductors are electrically connected to the power-supply conductors by a plurality of bonding wires. The frame member is made of resin which is coated on the substrate so as to surround the light-emitting elements and the bonding wires. The sealing member is filled in an area surrounded by the frame member and seals the light-emitting elements and the bonding wires.03-24-2011
20110063842LIGHT-EMITTING DEVICE AND ILLUMINATION DEVICE - According to one embodiment, a light-emitting device includes a ceramic substrate, a plurality of light-emitting elements, and pressure member. The substrate includes a first surface in contact with a thermally radiative member, a second surface positioned in a side opposite to the first surface, and an outer circumferential surface which bridges outer circumferential edges of the first surface and the second surface. The light-emitting elements are mounted on the second surface of the substrate. The pressure member elastically press the substrate toward the thermally radiative member. A gap is provided between the pressure member and the outer circumferential surface of the substrate.03-17-2011
20110057578LED LIGHTING DEVICE AND ILLUMINATION APPARATUS - The present invention provides a pair of input terminals to which AC voltage is input, the AC voltage being phase-controlled by a dimmer for phase-controlling AC voltage of an AC source; a damping circuit which has a resistor inserted to a position, into which input current flows from the AC source via the dimmer in series, and a capacitor and an inductor which form a closed circuit together with the AC source and the dimmer, and suppresses high-frequency vibration generated in the dimmer when a phase control element of the dimmer is turned on; and an LED lighting circuit which rectifies AC voltage phase-controlled and input via the pair of input terminals, converts DC output voltage, which is obtained by rectification, so that the voltage adapts to a load, and lights the LED.03-10-2011
20110057564LED LIGHTING DEVICE AND ILLUMINATION APPARATUS - 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.03-10-2011
20110043121LIGHTING CIRCUIT AND ILLUMINATION DEVICE - A lighting circuit according to embodiments includes: a self-hold element connected in series to an AC power source that generates power for lighting an illumination load, together with the illumination load, the self-hold element being configured to control supply of the power provided by the AC power source to the illumination load by the self-hold element being turned on/off; a noise prevention circuit connected in parallel to the self-hold element; and a damping circuit configured to connect a damping resistance to the noise prevention circuit parallely only for a predetermined period from turning-on of the self-hold element, thereby preventing the self-hold element from being repeatedly turned on/off during a period in which the self-hold element is on under normal conditions, due to a transient during power supply.02-24-2011
20110025206LED LIGHTING EQUIPMENT - 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.02-03-2011
20110006680LIGHT-EMITTING MODULE AND LIGHTING APPARATUS - An object of the present invention is to provide a light-emitting module having excellent light emission efficiency and excellent light distribution characteristics and also provide a lighting apparatus using the light-emitting module. The present invention is a light-emitting module 01-13-2011
20100327751SELF-BALLASTED LAMP AND LIGHTING EQUIPMENT - The present invention provides a self-ballasted lamp which efficiently conducts heat of a plurality of LED chips of a light emitting module to its holder, and can prevent the temperature rise of the LED chips. The holder has a base portion, an edge portion provided at one end side of the base portion, which is thick at the base portion side thereof and thin at the distal end side thereof, and heat radiation fins provided at the other end side from the edge part and at the circumference of the base portion. The heat from the semiconductor light emitting elements is conducted from the base portion to the edge part and radiated therefrom. At this time, the edge part is thickened at the base portion side, wherein the thermal capacity is increased, and the heat conduction is improved.12-30-2010
20100327746LAMP AND LIGHTING EQUIPMENT USING THE SAME - 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.12-30-2010
20100321935LIGHT SOURCE UNIT AND ILLUMINATION DEVICE - According to one embodiment, a power source unit includes a substrate and a reflective body. The substrate includes a plurality of light-emitting elements mounted thereon. The reflective body includes a plurality of incident openings each corresponding to one of the plurality of light-emitting elements, an output opening to which light that has passed through the incident opening is output, and a plurality of reflective surfaces that expand from the incident opening toward the output opening. Reflective surfaces included in the plurality of reflective surfaces and positioned on an outermost side are provided to be adjacent to one another, and an angle is set so as to prevent reflective light of light emitted from the light-emitting elements from traveling toward an outer side in a reflective surface formed on the outer side.12-23-2010
20100301748SELF-BALLASTED LAMP AND LIGHTING EQUIPMENT - The invention provides a self-ballasted lamp having high heat radiation performance, which is lightweight and inexpensive. A substrate having LED elements mounted is provided at one edge side of the radiator, and a cap is provided at the other edge side the radiator. A lighting circuit is accommodated between the radiator and the cap. The radiator includes a cylindrical cover member and an annular radiation member fitted to the outer circumferential part of the cover member and is composed by combining the cover member and the radiation member together. The cover member and the radiation member are made of metal and are formed by press-working.12-02-2010
20100301731LIGHT EMITTING MODULE AND ILLUMINATION DEVICE - According to one embodiment, a light-emitting module includes a module substrate, a reflective layer, conductive layers, a light-emitting element, and a sealing member. A reflective layer is provided on a surface of an insulating layer of the module substrate, and the conductive layers are provided in the vicinity of the reflective layer. Further, the light-emitting element is provided on the reflective layer. Moreover, the translucent sealing member has translucency and bury the reflective layer, the conductive layers, and the light-emitting element. The ratio of the area occupied by the reflective layer and the conductive layers to the sealed region sealed by the sealing member is equal to or greater than 80%.12-02-2010
20100289426ILLUMINATION DEVICE - The light source portion is provided with a plurality of LED circuits having a plurality of LEDs. A plurality of drive circuits are provided which cause the LEDs to be lit per LED circuit in response to input of PWM signals. The PWM control circuit outputs PWM signals per drive circuit in response to input of lighting control signals and simultaneously make the output timings of the PWM signals different from each other per drive circuit. By making the output timings of the PWM signals different, the period of time during which the LEDs are turned off can be reduced as the entirety of the light source portion, and the occurrence of flickering is reduced without increasing the lighting frequency.11-18-2010
20100270935LIGHT-EMITTING DEVICE AND ILLUMINATION APPARATUS - A light-emitting device and an illumination apparatus are disclosed. A plurality of LED elements are connected in series between positive and negative lines, and first bypass capacitor is connected in parallel to the LED elements respectively. Each series circuit of a predetermined number of LED elements is connected in parallel to second bypass capacitors. As a result, with the negative power line set as a grounding point, the AC impedance at connection points of the series circuit of the LED elements against the ground is reduced. Thus, the erroneous lighting or “flicker” of each LED which otherwise might be caused by an external noise is prevented.10-28-2010
20100270470INFRARED RAY DETECTOR AND ELECTRICAL APPARATUS - The present invention provides an infrared ray detector capable of facilitating design of a compound lens and capable of reliably detecting a heat source in a stabilized state, which is provided with a light receiving portion for detecting infrared ray energies, and a compound lens having a plurality of lens portions to condense an infrared ray in a predetermined detection area to the light receiving portion, wherein individual detection areas which condense infrared rays to the light receiving portion through the respective lens portions of the compound lens exist in the entire range of a predetermined detection area, and at least a part of the individual detection areas overlap each other.10-28-2010
20100253200LAMP HAVING OUTER SHELL TO RADIATE HEAT OF LIGHT SOURCE - A lamp includes an outer shell having heat conductivity, a base provided in the outer shell, and a cover provided in the outer shell. The outer shell has a light source support, and a heat radiating surface exposed to the outside of the outer shell. The light source support is formed integral with the heat radiating surface. A light source is supported on the light source support. The light source is heated during lighting, and thermally connected to the light source support. The light source is covered with the cover.10-07-2010
20100244694LAMP HAVING OUTER SHELL TO RADIATE HEAT OF LIGHT SOURCE - A lamp includes an outer shell having heat conductivity, a base provided in the outer shell, and a cover provided in the outer shell. The outer shell has a light source support, and a heat radiating surface exposed to the outside of the outer shell. The light source support is formed integral with the heat radiating surface. A light source is supported on the light source support. The light source is heated during lighting, and thermally connected to the light source support. The light source is covered with the cover.09-30-2010
20100244650LAMP HAVING OUTER SHELL TO RADIATE HEAT OF LIGHT SOURCE - A lamp includes an outer shell having heat conductivity, a base provided in the outer shell, and a cover provided in the outer shell. The outer shell has a light source support, and a heat radiating surface exposed to the outside of the outer shell. The light source support is formed integral with the heat radiating surface. A light source is supported on the light source support. The light source is heated during lighting, and thermally connected to the light source support. The light source is covered with the cover.09-30-2010
20100237779LAMP HAVING OUTER SHELL TO RADIATE HEAT OF LIGHT SOURCE - A lamp includes an outer shell having heat conductivity, a base provided in the outer shell, and a cover provided in the outer shell. The outer shell has a light source support, and a heat radiating surface exposed to the outside of the outer shell. The light source support is formed integral with the heat radiating surface. A light source is supported on the light source support. The light source is heated during lighting, and thermally connected to the light source support. The light source is covered with the cover.09-23-2010
20100237761LAMP HAVING OUTER SHELL TO RADIATE HEAT OF LIGHT SOURCE - A lamp includes an outer shell having heat conductivity, a base provided in the outer shell, and a cover provided in the outer shell. The outer shell has a light source support, and a heat radiating surface exposed to the outside of the outer shell. The light source support is formed integral with the heat radiating surface. A light source is supported on the light source support. The light source is heated during lighting, and thermally connected to the light source support. The light source is covered with the cover.09-23-2010
20100226131LIGHTING EQUIPMENT - LEDs, a reflector, and a baffle are disposed on the underside of the equipment main body. An emission opening for emitting light of the LEDs and a reflection surface for emitting light of the LEDs from the emission opening by reflecting the same are provided in the reflector. The baffle is disposed outside the direct light emission area where direct light from the LEDs is emitted from the emission opening of the reflector. The direct light from the LEDs can be picked up without being blocked by the baffle, and the light pick-up efficiency can be improved.09-09-2010
20100225220LIGHT EMITTING ELEMENT LAMP AND LIGHTING EQUIPMENT - An object of the present invention is to provide a light emitting element lamp and a lighting equipment effectively suppressing a temperature rising of a substrate on which a light emitting element is mounted by using a reflector. The present invention provides a light emitting element lamp 09-09-2010
20100219735LIGHTING DEVICE AND LIGHTING FIXTURE - A lighting device and a lighting fixture of the embodiment of the present invention comprises a thermally conductive main body having a substrate support portion in one end portion, and having a through-hole and a groove portion formed in the substrate support portion, the through-hole penetrating from the one end portion to the other end portion of the main body, the groove portion extending continuously from the through-hole, a substrate mounted with a semiconductor light-emitting device, and disposed on the substrate support portion, an electrical connector connected to the semiconductor light-emitting device, a power supply device housed in the main body and configured to light the semiconductor light-emitting device, a wire connected to the power supply device and to the electrical connector while being inserted through the through-hole and the groove portion, and a base member provided in the other end portion of the main body and connected to the power supply device. Therefore, a lighting device and a lighting fixture of this embodiment of the present invention reduced in size, is configured to be suitable for mass production and is capable of producing a certain luminous flux.09-02-2010
20100208473LAMP SYSTEM AND LIGHTING APPARATUS - A lamp system which can improve radiation performance is provided. A metallic heat conduction part provided along a peripheral portion of a metallic cover is fitted with a resin heat conduction part provided along a peripheral portion of a transparent cover so as to thermally contact each other. Heat generated by an LED is radiated into air from the metallic cover and at the same time is efficiently conducted from the metallic cover to the transparent cover to be radiated into air from the transparent cover.08-19-2010
20100195329LIGHTING APPARATUS - A lighting apparatus comprises a housing and a first reflector. The first reflector is mounted beneath the light source and includes a plurality of segmented reflectors, each having at its top, a installation hole and at its bottom, an opening wider than the installation hole. A second reflector is positioned beneath the first reflector. The height of the second reflector causes a first light shielding angle defined by a straight line passing through the installation hole and the bottom edge of the corresponding segmented reflector to be larger than a second light shielding angle defined by a straight line passing through the bottom edge of the segmented reflector and the bottom edge of the second reflector.08-05-2010
20100195328LIGHTING APPARATUS - A lighting apparatus comprises a housing and a first reflector. The first reflector is mounted beneath the light source and includes a plurality of segmented reflectors, each having at its top, a installation hole and at its bottom, an opening wider than the installation hole. A second reflector is positioned beneath the first reflector. The height of the second reflector causes a first light shielding angle defined by a straight line passing through the installation hole and the bottom edge of the corresponding segmented reflector to be larger than a second light shielding angle defined by a straight line passing through the bottom edge of the segmented reflector and the bottom edge of the second reflector.08-05-2010
20100195327LIGHTING APPARATUS - A lighting apparatus comprises a housing and a first reflector. The first reflector is mounted beneath the light source and includes a plurality of segmented reflectors, each having at its top, a installation hole and at its bottom, an opening wider than the installation hole. A second reflector is positioned beneath the first reflector. The height of the second reflector causes a first light shielding angle defined by a straight line passing through the installation hole and the bottom edge of the corresponding segmented reflector to be larger than a second light shielding angle defined by a straight line passing through the bottom edge of the segmented reflector and the bottom edge of the second reflector.08-05-2010
20100195271ELECTROLYTIC CAPACITOR AND ELECTRIC EQUIPMENT PROVIDED THEREWITH - An electrolytic capacitor includes: a case including a case body, in which an electrolytic capacitor element is disposed in a sealed manner and filled up with an electrolytic solution, and a safety valve is mounted to the case body for jetting an evaporated gas of the electrolytic solution filling the electrolytic capacitor element; a cover member mounted to the case so as to cover the safety valve provided for the case; a first fixing unit mounted to the cover member so as to prevent the cover member from dismounting when the evaporated gas of the electrolytic solution is jetted outward; and a second fixing unit disposed in association with the first fixing unit and adopted to reinforce and assist a function of the first fixing unit to thereby prevent the cover member from being dismounted. An electric equipment includes a lighting circuit including circuit components, and an electrolytic capacitor of the structure mentioned above.08-05-2010
20100194291ILLUMINATION APPARATUS - An illumination apparatus includes an image sensor 08-05-2010
20100188852ILLUMINATION DEVICE WITH SEMICONDUCTOR LIGHT-EMITTING ELEMENTS - An illumination device includes a base board, an insulator, a conductor, a plurality of semiconductor light-emitting elements and a light-transmissive sealing member. The base board includes a surface and projection portions. The projection portion is formed to become gradually thicker from its end toward the surface of the base board. The insulator is formed on the surface. The conductor is formed on the insulator. The semiconductor light-emitting elements are mounted on the projection portions. The semiconductor light-emitting elements are electrically connected to the conductor via connection members. The sealing member covers the insulator, the projection portions, the semiconductor light-emitting elements and the connection members.07-29-2010
20100165624LIGHT SOURCE MODULE AND LIGHTING APPARATUS - A light source module includes a module substrate, a metal conductor, a plurality of semiconductor light emitting elements, a white diffuse reflection layer, and translucent sealing members. The metal conductor is provided in a predetermined pattern on a front surface of the module substrate. The semiconductor light emitting elements are electrically connected to the metal conductor and mounted on the front surface of the module substrate. The white diffuse reflection layer includes a plurality of holes in which the semiconductor light emitting elements are located, is thinner than the semiconductor light emitting elements, and is laminated to the front surface of the module substrate. The translucent sealing members bury the semiconductor light emitting elements, project below the diffuse reflection layer, and are mixed with a phosphor.07-01-2010
20100149783LIGHT-EMITTING MODULE AND ILLUMINATION APPARATUS - A light-emitting module includes at least one light-emitting element provided on a mount surface of a substratum. A translucent member is provided so as to face the mount surface of the substratum. The translucent member is separated from the light-emitting element and contains a phosphor material that converts a wavelength of light emitted by the light-emitting element. A frame having heat conducting properties is interposed between the substratum and the translucent member. The frame surrounds the light-emitting element. The frame includes an opening that leads light emitted by the light-emitting element to the translucent member, and a heat conductor thermally connected to the translucent member. The heat conductor includes a heat radiator exposed outside of the translucent member.06-17-2010
20100142202LUMINAIRE - A luminaire includes a light-emitting unit, a main body frame, a support frame, and a lighting unit. The light-emitting unit mounts light-emitting elements. The main body frame supports the light-emitting unit, and is formed rectangular having a hook-shaped engaging piece on one side. The support frame is formed rectangular surrounding the outer periphery of the main body frame, and has a groove-shaped receiving place to engage with the engaging piece of the main body frame, on one internal side. The lighting unit turns on the light-emitting elements.06-10-2010
20100128491RECESSED LUMINAIRE - A recessed luminaire includes a main body including a light source, a terminal base attachment member, which is fire-resistant and extending laterally from the main body, and a terminal base, which is disposed on a lower surface of the terminal base attachment member and to which power wires extending in parallel in a direction of extension of the terminal base attachment member are connected.05-27-2010
20100128480LIGHTING FIXTURE - A lighting fixture includes a light-emitting section composed of a plurality of semiconductor light-emitting devices arranged separated from one another on a planar substrate and a lighting control section configured to control lighting of the semiconductor light-emitting devices of the light-emitting section. The light-emitting section is attached at a front of a fixture main body, and a convection generation section configured to generate convection is provided at a back of the fixture main body. The convection generation section generates convection and promotes heat radiation. With the configuration, even if the lighting fixture is installed to abut on a ceiling surface, the effect of radiating heat generated by the semiconductor light-emitting devices can be ensured.05-27-2010
20100127609COATING LIQUID FOR DIFFUSING FILM OF HIGH-PRESSURE DISCHARGE LAMP AND HIGH-PRESSURE DISCHARGE LAMP - A high-pressure discharge lamp includes a luminous tube, an outer bulb housing the luminous tube, and a diffusing film formed on at least one of inner and outer surfaces of the outer bulb, in which the diffusing film includes first silica particles having shapes different in surface curvature from each other and hollow second silica particles.05-27-2010
20100124064LIGHTING DEVICE INCLUDING TRANSLUCENT COVER FOR DIFFUSING LIGHT FROM LIGHT SOURCE - A lighting device includes a light source configured to radiate light toward a floor from a ceiling, a reflecting mirror provided around the light source, and shading angle setting element configured to define a range in which the light from the light source is radiated by setting a shading angle with respect to the light radiated from the light source. The light source, the reflecting mirror and the shading angle setting element are covered by a translucent cover. The translucent cover has an in-line transmittance. An in-line transmittance of the translucent cover of a position corresponding to an optical axis of the light source and an in-line transmittance of the translucent cover of a position deviated from the optical axis are different from each other.05-20-2010
20100118548ILLUMINATION DEVICE - An illumination device is provided with: a light source part 05-13-2010
20100117100LIGHT-EMITTING MODULE AND ILLUMINATION DEVICE - There is provided a light-emitting module which makes it difficult to sense glare and which suppresses the temperature rise of light-emitting diode chips and has a cost advantage. The light-emitting module is provided with a base body formed with a non-metallic member having a thermal conductivity of 1 W/mk or less. In the base body, a plurality of LED chips are spaced 10 to 30 mm apart from each other, and their junction temperature when they are normally lit is preferably set at 90° C. or less. A translucent sealing member covering an area between the adjacent light-emitting diode chips is provided.05-13-2010
20100103680LIGHT-EMITTING MODULE AND ILLUMINATING APPARATUS - A light-emitting module includes a substrate, a wiring pattern, and a light-emitting device that generates heat. The substrate includes a metal base and an insulating base that is stacked on the metal base and has a mount surface on the opposite side of the metal base. The insulating base has a plurality of insulating layers stacked on one another. The wiring pattern is provided on the mount surface of the substrate. The light-emitting device is mounted on the mount surface of the substrate and is electrically connected to the wiring pattern.04-29-2010
20100097811LIGHT-EMITTING MODULE AND ILLUMINATION DEVICE - There is provided a light-emitting module that is small and easy to produce. On the surface of a board, alight-emitting element and an electrical connection portion electrically connected to the light-emitting element are provided. In a position close to the electrical connection portion of the board, a through-hole that penetrates the board is formed. Through the through-hole of the board, an electric wire for supplying electric power to the light-emitting element can be inserted from the back surface of the board to the front surface to be electrically connected to the electrical connection portion.04-22-2010
20100097007LIGHT-EMITTING DIODE LIGHTING DEVICE - There is provided an LED lighting device having a satisfactory temperature characteristic and a small amount of variation in output current. The step-down chopper is provided with a first circuit including the switching element, the impedance means and a first inductor connected in series and a second circuit including the first inductor and a diode connected in series. A self-excited drive signal generation circuit is provided with a second inductor magnetically coupled with the first inductor and applies a voltage induced in the second inductor to the switching element to keep the switching element on. A turn-off circuit outputs an output voltage when the voltage of the impedance means detected by a comparator exceeds the reference value, and the output voltage allows a switching element to turn on to short-circuit the output terminals of the self-excited drive signal generation circuit, resulting in that the switching element is turned off.04-22-2010
20100096965LIGHTING DEVICE - A lighting device includes a printed wiring board, a plurality of light-emitting elements, a sealing member, and a color conversion unit, and an adhesive layer. The sealing member has light transmitting properties and seals the light-emitting elements mounted on the printed wiring board. The color conversion unit includes a cover member of light transmitting properties, and a fluorescent substance layer provided on the inner surface of the cover member. The adhesive layer has light-transmitting properties, and adheres the sealing member to the fluorescent substance layer of the color conversion unit in an airtight manner.04-22-2010
20100079087LIGHTING APPARATUS - The present invention comprises a lighting apparatus main body having a reflecting surface, a main light source arranged in the reflecting surface of the lighting apparatus main body, a sub-light source which is arranged at the lighting apparatus main body and illuminates the neighborhood of the main light source directly, and a control circuit which controls the main light source and the sub-light source.04-01-2010
20100073931LIGHT-EMITTING MODULE, LIGHT-EMITTING DEVICE HAVING THE LIGHT-EMITTING MODULE, AND LIGHTING APPARATUS HAVING THE LIGHT-EMITTING DEVICE - A light-emitting module has semiconductor light-emitting elements, a substrate, and a jointing connector. The semiconductor light-emitting elements are mounted on the obverse of the substrate, and connected in series by conductive patterns formed on the substrate. The jointing connector has a male terminal and a female terminal, which are connected in series to the conductive patterns. The jointing connector has a connecting part connectable to other same-shaped jointing connector arranged in point-symmetric for the jointing connector.03-25-2010
20100072894LAMP DEVICE AND LIGHTING APPARATUS - A lamp device includes: a substrate; a light emitting element mounted on the substrate; a heat transfer body having a peripheral wall portion having one end expanding toward another one end, the substrate being attached to an inner surface of the one end of the heat transfer body; a plurality of heat radiation fins disposed at the another one end of the peripheral wall portion of the heat transfer body; a cover attached to the one end of the heat transfer body; a base mounted to one end of the cover; and a lighting circuit disposed inside the cover and adapted to trigger light emission of the light emitting element. A lighting apparatus is composed of a lighting apparatus housing, a socket disposed in the lighting apparatus housing, and a lamp device of the structure mentioned above.03-25-2010
20100067226LIGHT SOURCE UNIT AND LIGHTING APPARATUS HAVING LIGHT-EMITTING DIODES FOR LIGHT SOURCE - A light source unit is provided with a substrate and segments of a reflector. The substrate has a plurality of light-emitting devices mounted on its central and peripheral portions. The segments correspond to the light-emitting devices, individually. The segment corresponding to the light-emitting devices mounted on the central portion are higher in thermal radiation capacity than the segment corresponding to the light-emitting devices mounted on the peripheral portion.03-18-2010
20100060204POWER SUPPLY UNIT HAVING DIMMER FUNCTION AND LIGHTING UNIT - In a power supply unit, if a dimmer rate is changed within a range of k03-11-2010
20100053950LIGHTING APPARATUS HAVING LIGHT EMITTING DIODES FOR LIGHT SOURCE - A down-light has a main body, a substrate, a plurality of LEDs, a reflector, a central boss, a central screw and peripheral screws. The main body has a mounting area. The substrate having LEDs is assembled in the mounting area. The reflector is attached to the main body with the substrate interposed therebetween, and reflects light emitted from the LEDs. The central boss is formed on the mounting area to correspond to a central part of the substrate. The central screw fixes the central part of the substrate to the central boss from the reflector side. Peripheral screws fix the substrate to the main body by pulling the reflector from the main body side.03-04-2010
20100052566LED LIGHTING DEVICE AND LIGHTING EQUIPMENT - An LED lighting device including a DC power source circuit, a high frequency generation circuit which includes an inverter circuit having switching elements and a resonance circuit having a series-connected inductor and condenser, in which the switching elements are on-off controlled by a no-load resonance frequency of the resonance circuit, and DC voltage input from the DC power source circuit is converted into a high frequency AC voltage, a rectification smoothing circuit having an input side which is connected between both edges of the condenser or both edges of the inductor; and a light emitting diode series connected to an output side of the rectification smoothing circuit.03-04-2010
20100052565LED LIGHTING DEVICE AND LIGHTING EQUIPMENT - An LED lighting device includes light emitting diode, a current control circuit having a first series circuit of first and second switching elements, a second series circuit of third and fourth switching elements, and a condenser, which is configured so that the first and second series circuits are parallel connected and the condenser is connected between a connection point of the first and second switching elements and a connection point of the third and fourth switching elements, and a control circuit for alternatively on-off controlling a pair of the first and fourth switching elements and a pair of the second and third switching elements.03-04-2010
20100033106HIGH-PRESSURE DISCHARGE LAMP, HIGH-PRESSURE DISCHARGE LAMP LIGHTING SYSTEM AND LIGHTING EQUIPMENT - Disclosed is a high-pressure discharge lamp includes a translucent ceramics sealed container provided with an enclosed part with a discharge space formed therein, a pair of electrodes disposed inside of both end parts of the translucent sealed container, an ionization medium having a structure containing a metal halide that primarily emits light, a starting gas and substantially no mercury, the metal halide that primarily emits light including 30% by mass or more of a halide of at least one lanthanoid type rare earth metal and the starting gas having a pressure P (atm) satisfying the equation, 1≦P≦20, the ionization medium being sealed in the translucent ceramics sealed container, wherein the ratio D/G satisfies the equation, 0.3≦D/G≦2.4 when the maximum inside diameter of the translucent ceramics sealed container is D and the inter-electrode distance is G.02-11-2010
20100026185SELF-BALLASTED LAMP - A substrate is attached to one edge side of a radiator and a globe is attached covering the substrate. Heat-radiating fins are provided on the other edge side of the radiator and an air-cooling unit is rotatably provided inside the heat-radiating fins which enables to freely rotate. A case storing a circuit part is attached to the other edge side of the radiator and a cap is provided to the case. By the wind blast from the air-cooling unit, the heat-radiating fins are caused to be a part of the ventilation path to allow for ventilation of the inside of the radiator.02-04-2010
20100026157LAMP AND LIGHTING EQUIPMENT - A plurality of LEDs are provided to an outer edge side of a center position of one main surface of an LED substrate main body in a deviated manner respectively. The wiring part including the connector receiving part and the wiring hole are provided at a position that overlaps the center position of the one main surface side of the LED substrate main body. Since the power feeding part is inserted into the wiring hole, the connection part and the connector receiving part can be easily connected and therefore it becomes possible to ensure ease in assembly. Since the connector receiving part is kept away from each of the LEDs with substantially equal distance so that emitted light is hardly blocked, decrease in uniformity of light distribution can be suppressed.02-04-2010
20090303715LIGHT SOURCE MODULE HAVING A PLURALITY OF LIGHT-EMITTING ELEMENTS AND ILLUMINATION APPARATUS - A light source module has a reflector having a light reflection face and a plurality of light emitting elements. The light reflection face is curved in a circular arc shape in a width direction of the reflector and extends in a longitudinal direction of the reflector. The light emitting elements are arranged in a center portion in the width direction of the light reflection face and are arranged linearly along the longitudinal direction of the reflector.12-10-2009
20090296414LIGHTING APPARATUS AND SUBSTRATE HAVING PLURALITY OF LIGHT-EMITTING ELEMENTS MOUNTED THEREON AND INCORPORATED IN THIS LIGHTING APPARATUS - The present invention provides a down light include a thermally-conductive main body, and a substrate which is mounted on this main body through a plurality of screw, has slits which are formed on straight lines connecting the screw with each other in directions orthogonal to the straight lines, and has a plurality of LEDs arranged thereon.12-03-2009
20090296412LIGHTING SYSTEM - A spotlight is provided with a substrate having LEDs disposed thereon and a main body casing on which the substrate is provided. The main body casing has a rear side portion having thermal conductivity, which is thermally coupled to the substrate, and is capable of changing the irradiation angle of light emitted from the LEDs. A plurality of heat-radiating fins for forming grooves operating as a plurality of convection paths along the direction of changing the irradiation angle are provided on the rear side portion of the main body casing.12-03-2009
20090290354REFLECTOR AND LIGHTING APPARATUS COMPRISING REFLECTOR - A reflector built in a down light includes a plurality of floodlight openings respectively exposing a plurality of light-emitting elements to a front surface side, a plurality of radial partition walls which respectively partition and surround these floodlight openings, and an inner circumferential partition wall. Each of the partition walls has a ridge line, and the reflector includes a plurality of reflection concave surfaces each which open and widen from a respective one of the plurality of floodlight openings towards ridge lines of the plurality of partition walls which respectively surround the plurality of floodlight openings. The plurality of radial partition walls extend from the center of the reflector towards the outer circumference, and the inner circumferential partition wall is located between the center and the outer circumference.11-26-2009
20090290346LIGHT SOURCE UNIT AND LIGHTING SYSTEM - The light source unit is provided with a substrate and a decorative cover having thermal conductivity. The substrate includes a circuit pattern area, in which a plurality of LED chips are disposed, at the middle part thereof, has thermal conductivity, and transmits heat from the circuit pattern area to an area in the outer circumferential direction thereof. The decorative cover encloses the substrate, is electrically insulated from the circuit pattern area, and is thermally coupled to the surface side of the substrate at the periphery of the circuit pattern area by being face-contacted thereto. Heat of the substrate can be radiated by the decorative cover while securing an electric insulation property with respect to the circuit pattern area.11-26-2009
20090267480HIGH-PRESSURE DISCHARGE LAMP AND LIGHTING EQUIPMENT - A high-pressure discharge lamp includes a luminous tube, a translucent protective tube disposed to cover the luminous tube, and a light-cutting layer formed on an outer or inner surface of the protective Lube and includes, as a main component, metal oxide particles which absorb light having a wavelength no greater than 600 nm and allow light having a wavelength of greater than 600 nm to permeate, the light-cutting layer having optical properties that a cut ratio of light having a wavelength of 450 nm is confined to 20-50%.10-29-2009
20090262538LIGHTING APPARATUS - A reading light incorporates a light fitting containing a light source, a light main body and a spring. The cover of the light fitting includes an outer surface formed of a part of a spherical surface. The body of the light fitting is formed of a metal, and includes a back surface formed of another part of the spherical surface. The light main body includes a receiving/guiding portion that supports the outer surface. The receiving/guiding portion supports the light fitting so that the light fitting is rotatable, thereby enabling the direction of light emitted from the light fitting to be changed. The light fitting is fitted in the light main body by pressing the back surface using the spring. Either the receiving/guiding portion or cover is formed of a metal, and the other is formed of a resin.10-22-2009
20090206766HIGH-PRESSURE DISCHARGE LAMP, LIGHTING APPARATUS AND HIGH-PRESSURE DISCHARGE LAMP APPARATUS - A high-pressure discharge lamp is characterized by including a translucent airtight container having a discharging space in an internal portion, electrodes for causing discharge in the discharging space of the translucent airtight container, and an ionization medium sealed in the translucent airtight container and containing a metal halide and rare gas, the metal halide including at least one type of halides of thulium and holmium whose sealing ratio with respect to the total amount of sealed metal halides is not lower than 30 mass % and the rare gas is xenon at not lower than 3 atm at 25° C., and the high-pressure discharge lamp is characterized in that mercury and a metal halide for formation of lamp voltage are not substantially contained in the translucent airtight container.08-20-2009
20090134813DISCHARGE LAMP LIGHTING DEVICE - The inverter circuit is feedback-controlled by a substantial current flowing into the discharge lamp, which is detected by the current detecting means. A high starting voltage is supplied to the discharge lamp with the operation frequency lowered by the control circuit after the end of a preheating action. The inverter circuit is controlled so that the current of the discharge lamp becomes a desired current value as soon as the current detecting means detects the current substantially flowing into the discharge lamp. The discharge lamp can be prevented from being instantaneously brightly lit without separately providing any structure for detecting lighting of the discharge lamp.05-28-2009
20080297062ILLUMINATING DEVICE - To a constant-current power supply whose output current can be variably set, light emitting modules can be connected in parallel. A control unit recognizes connection information outputted from an information output unit provided in each of the light emitting modules and varies the output current of the constant-current power supply. Drive can be controlled in response to a state of the connected light emitting modules such as the connecting number of light emitting modules.12-04-2008
20080239724Illuminating Device - An illuminating device that is improved in heat radiation property and is suppressed in the occurrence of peeling and warping of a reflector. The reflector having a housing portion that houses a light emitting diode element is disposed on a substrate a visible light converting layer is formed on the housing portion and a lens is disposed on the reflector. A circuit pattern, the light emitting diode element, the reflector, the visible light converting layer, and the lens are disposed on the substrate, and the reflector and the lens are respectively adhered using a same type of adhesive agent. The heat radiation property can thus be improved, the peeling and warping of the reflector, etc., is suppressed, and accordingly, the optical characteristics of the device can be maintained.10-02-2008
20080238291COMPACT FLUORESCENT LAMP AND LIGHTING APPARATUS - A compact fluorescent lamp includes an arc tube having a bulb with a spiral portion formed in at least a portion thereof, the bulb having an electrode sealed in each of both end portions thereof so as to form a discharge path inside, and both the end portions of the bulb opposing to each other at positions inside a portion having a maximum outer diameter of the spiral portion so that the opposing end portions have a minimum distance of 5 to 15 mm; a lighting device lightening the arc tube; a cover member which supports the arc tube and in which the lighting device is arranged; and a base supported by the cover member.10-02-2008
20080211411HIGH-PRESSURE DISCHARGE LAMP, HIGH-PRESSURE DISCHARGE LAMP OPERATING APPARATUS, AND ILLUMINATING APPARATUS - A high-pressure discharge lamp includes a translucent ceramic discharge vessel having a surrounding part formed of translucent ceramic, and a pipe connected to the surrounding part, formed of translucent ceramic having an average crystal particle size of 50 μm or less in a region close to an intended sealing portion, and having a smaller diameter than the surrounding part. A current introducing conductor is inserted into the pipe of the translucent ceramic discharge vessel, and is sealed at least by a sealing portion formed by fusion of the translucent ceramic in the pipe. An electrode is connected to and disposed in the current introducing conductor in the translucent ceramic discharge vessel. A discharge medium is sealed in the translucent ceramic discharge vessel.09-04-2008

Patent applications by TOSHIBA LIGHTING & TECHNOLOGY CORPORATION