Load Device And Impedance Patents (Class 315/71)
  • Patent number: 10236987
    Abstract: A circuit arrangement that actuates an optoelectronic component includes a first node, a second node, a third node, and a fourth node, wherein a supply voltage may be applied between the first node and the fourth node, the first node connects to the second node, an optoelectronic component is optionally arranged between the second node and the third node, a first transistor is arranged between the third node and the fourth node to switch a channel between the third node and the fourth node, and a series circuit including a first resistor, a coil and a second transistor is arranged between the first node and the third node.
    Type: Grant
    Filed: October 22, 2014
    Date of Patent: March 19, 2019
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventor: Hubert Halbritter
  • Patent number: 10205046
    Abstract: Contrary to conventional wisdom, which holds that light-emitting diodes (LEDs) should be cooled to increase efficiency, the LEDs disclosed herein are heated to increase efficiency. Heating an LED operating at low forward bias voltage (e.g., V<kBT/q) can be accomplished by injecting phonons generated by non-radiative recombination back into the LED's semiconductor lattice. This raises the temperature of the LED's active rejection, resulting in thermally assisted injection of holes and carriers into the LED's active region. This phonon recycling or thermo-electric pumping process can be promoted by heating the LED with an external source (e.g., exhaust gases or waste heat from other electrical components). It can also be achieved via internal heat generation, e.g., by thermally insulating the LED's diode structure to prevent (rather than promote) heat dissipation. In other words, trapping heat generated by the LED within the LED increases LED efficiency under certain bias conditions.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: February 12, 2019
    Assignee: Massachusetts Institute of Technology
    Inventors: Parthiban Santhanam, Dodd Joseph Gray, Rajeev Jagga Ram
  • Patent number: 9609717
    Abstract: In various embodiments, a light-emitting apparatus is disclosed. In one example, the light-emitting apparatus comprises a substrate, an LED string mounted on the substrate, in which LED string a plurality of LEDs are connected in series, a power supply path connected in series to the LED string, and a plurality of protection elements, each protection element having a first node commonly connected to the power supply path and a second node connected between a pair of the LEDs in the series, wherein the protection elements include capacitors or zener diodes, and an AC impedance of each protection element is smaller than an impedance between the pair of LEDs and a case ground.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: March 28, 2017
    Assignee: PHILIPS LIGHTING HOLDING B.V.
    Inventor: Takaaki Yagi
  • Patent number: 9236538
    Abstract: A method for making light emitting diode includes following steps. A substrate having an epitaxial growth surface is provided. A first semiconductor layer, an active layer, and a second semiconductor layer is epitaxially grown on the epitaxial growth surface of the substrate in that sequence. A cermet layer is formed on the second semiconductor layer. The substrate is removed to form an exposed surface. A first electrode is applied to cover the entire exposed surface of the first semiconductor layer. A second electrode is applied to electrically connected to the second semiconductor layer.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: January 12, 2016
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Jun Zhu, Hao-Su Zhang, Zhen-Dong Zhu, Qun-Qing Li, Guo-Fan Jin, Shou-Shan Fan
  • Publication number: 20150091437
    Abstract: The sticker-shape light-emitting device using a near field communication system includes: a main body having a panel shape; an induction coil that is disposed on a front surface of the main body as a coil shape and converts an electromagnetic wave to electricity by an electromagnetic induction phenomenon, wherein the electromagnetic wave is emitted from a terminal that can have non-contact communication; a light-emitting diode that emits light by electrical energy generated from the induction coil; and an adhesion unit that is disposed on a rear surface of the main body and on which an adhesive is coated so that the main body is attached to a specific surface of an object.
    Type: Application
    Filed: April 19, 2013
    Publication date: April 2, 2015
    Inventor: Sang Jin PARK
  • Patent number: 8987990
    Abstract: A plasma jet spark plug having increased capacitive discharge current, and thus improved plasma generation efficiency. The plasma jet spark plug includes an insulating body having an axial hole, a center electrode, a metal shell, and a cavity portion formed by the inner peripheral surface of the insulating body and the leading end face of the center electrode. A conductive layer formed from a conductive material is provided on at least one portion of at least one of: (a) a surface on the insulating body outer peripheral surface opposed to the inner peripheral surface of the metal shell, the conductive layer electrically connected to a ground electrode; and (b) a surface on the insulating body inner peripheral surface opposed to the outer peripheral surface of the center electrode, the conductive layer electrically connected to the center electrode.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: March 24, 2015
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Hiroyuki Kameda, Daisuke Nakano, Naofumi Yamamura
  • Publication number: 20140306605
    Abstract: A PTC composition comprises crystalline polymer and conductive ceramic filler dispersed therein. The crystalline polymer has a melting point less than 90° C. and comprises 5%-30% by weight of the PTC composition. The crystalline polymer comprises ethylene, vinyl copolymer or the mixture thereof. The vinyl copolymer comprises at least one of the functional group selected from the group consisting of ester, ether, organic acid, anhydride, imide or amide. The conductive ceramic filler comprises a resistivity less than 500 ??-cm and comprises 70%-95% by weight of the PTC composition. The PTC composition has a resistivity about 0.01-5 ?-cm and its resistance at 85° C. is about 103 to 108 times that at 25° C.
    Type: Application
    Filed: September 4, 2013
    Publication date: October 16, 2014
    Applicant: POLYTRONICS TECHNOLOGY CORP.
    Inventors: Kuo Chang LO, Wei Tsang Dai, Yi An Sha, Chun Teng Tseng
  • Patent number: 8853945
    Abstract: A method for operating an arrangement of equipment that include a pulse generator for generating electrical pulses, a microwave generator with a break-through voltage, and a transmission element is provided. For transmission of the pulses, the pulse generator is connected to the microwave generator via the transmission element, which in the arrangement of equipment, acts as an impedance varying over time. The voltage characteristic over time or the current characteristic over time of each pulse is defined such that in an operating mode, the impedance of the transmission element is matched to the impedance of the microwave generator when the break-through voltage is reached.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: October 7, 2014
    Assignee: Siemens Aktiengesellshaft
    Inventors: Robert Grätz, Oliver Heuermann, Sven Müller, Martin Schön, Stefan Willing
  • Publication number: 20140265836
    Abstract: A modular LED light bulb is presented. The bulb comprises a bulb envelope and a removable screw base. A power supply within the bulb envelope connects to an electrolytic capacitor within the screw base. When the electrolytic capacitor in the screw base requires replacement, the screw base is detached from the bulb envelope, the depleted electrolytic capacitor is discarded, and a new electrolytic capacitor is connected to the power supply. The various embodiments increase the useful life of the LED light bulb. In another aspect, the screw base may be adapted to accept swappable modules to provide the light bulb with additional functionality. The swappable modules may provide the light bulb with wireless control and motion sensing.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: BBY Solutions, Inc.
    Inventors: Farhad Nourbakhsh, Newton Guillen
  • Patent number: 8736171
    Abstract: An illumination device comprises a bulb connector, a body structure and an insulating layer between the bulb connector and a first end portion of the body structure. The illumination device further comprises a first plurality of light emitting diodes arranged towards the first end portion of the body structure and a second light source comprising at least one light emitting diode arranged towards the second end portion of the body structure. A heat sink extends from the body structure and a controller within the body structure receives power through the bulb connector and supplies power to each of the light emitting diodes. As such, the illumination device can directly replace an incandescent bulb. Thus for example, the illumination device can replace an incandescent bulb of a traffic light without requiring changes to the compartment, fixture, reflector, or window/lens.
    Type: Grant
    Filed: September 6, 2011
    Date of Patent: May 27, 2014
    Assignee: Zybron Optical Electronics, Inc.
    Inventors: Evan Zhang, Rusong Liu, YiYang Zou
  • Patent number: 8659227
    Abstract: A magnetron includes an anode with an anode casing at least partly surrounding the anode. A pair of permanent magnets on each side of the anode define an interaction region and create a magnetic circuit defining a magnetic field through the interaction region. A mass of magnetically permeable material is positioned in a vicinity of the magnetic circuit. The mass is arranged to be slidable over the anode casing. A locking device secures the position of the mass to set the strength of the magnetic field through the interaction region.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: February 25, 2014
    Assignee: E2V Technologies (UK) Limited
    Inventors: Bernard Richard Mulcahy, Martin Bernard Edwards
  • Publication number: 20140015405
    Abstract: The light emitting diode module is disclosed. The light emitting diode module includes a ceramic substrate, a circuit layer, at least an illuminant element and a driving circuit element. The ceramic substrate has a recess formed on and upper surface thereof. The circuit layer is placed on the upper surface of the ceramic substrate. The driving circuit element is disposed on the upper surface of the ceramic substrate and electrically connected to the circuit layer. By providing the recess at molding of the ceramic substrate, the light emitting diode module can prevent manufacturing difficulty from hardness ceramic substrate. In addition, by accommodating the adhesive in the recess, the adhesive can be easily orientated and of convex shape.
    Type: Application
    Filed: July 12, 2012
    Publication date: January 16, 2014
    Inventor: Ting-Kuo HSIN
  • Publication number: 20130278138
    Abstract: A light-emitting apparatus including a substrate, an LED string mounted on the substrate, the LED string in which a plurality of light-emitting diodes D1-D6 are connected in series, a power supply line 13 (13a, 13b) connected in series to the LED string, and a plurality of protection capacitors C (C1-C5), each being arranged between a connection N (N1-N5) between at least one set of light-emitting diodes in the LED string and the power supply line 13 and having an impedance smaller than an impedance between the connection N and an earth.
    Type: Application
    Filed: June 16, 2011
    Publication date: October 24, 2013
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventor: Takaaki Yagi
  • Publication number: 20130265017
    Abstract: An embodiment of a driving device is proposed for supplying at least one regulated global output current to a load. The driving device includes programming means for programming a value of the global output current within a global current range. Reference means are provided for supplying a reference voltage, which has a value corresponding to the value of the global output current. Conversion means are then used for converting the reference voltage into the global output current. The conversion means may further include a plurality of conversion units for corresponding partial current ranges, which partition the global current range.
    Type: Application
    Filed: March 14, 2013
    Publication date: October 10, 2013
    Applicant: STMICROELECTRONICS S.R.L.
    Inventors: Roberto La Rosa, Massimo Michele Antonio Sorbera
  • Publication number: 20130241408
    Abstract: A light-emitting module includes a light-emitting diode (LED) package, in which an LED is implemented, and a resistor, connected to the LED in series, which is placed in the position subject to a change in temperature of the LED package. The resistor has a positive temperature coefficient. The volume resistivity of the resistor at 0° C. is preferably 2×10?8 [?·m] or above. The temperature coefficient of the resistor in a range of 0° C. to 100° C. is preferably 0.05 [10?3/° C.] or above.
    Type: Application
    Filed: May 1, 2013
    Publication date: September 19, 2013
    Applicant: Koito Manufacturing Co., Ltd.
    Inventors: Yasutaka SASAKI, Masanobu MIZUNO
  • Publication number: 20130200791
    Abstract: The invention provides a wireless electrical power supply unit (100) comprising a sender connector (120) configured to transfer wireless electrical power by means of an AC signal to an external receiver connector (320). The invention further provides an arrangement (400), wherein such wireless electrical power supply (100) may be applied, comprising a light transmissive cover (410) and a lighting system (420) configured to provide lighting system light (421) through the light transmissive cover (410), wherein the lighting system (420) comprises the receiver connector (320) configured to receive wireless electrical power, by means of an AC signal (of the wireless electrical power supply unit (100)).
    Type: Application
    Filed: October 17, 2011
    Publication date: August 8, 2013
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Maarten Marinus Johannes Wilhelmu Van Herpen, Oscar Hendrikus Willemsen
  • Patent number: 8500294
    Abstract: A luminaire may include at least one LED; a solar module; an accumulator; an electronic charger coupled between the solar module and the accumulator; and a drive circuit coupled to the accumulator, for the at least one LED; a fastening device that is configured to fasten the luminaire at an operating location; and an LED holding device that is configured to hold the at least one LED; wherein the luminaire may further include a position varying device that is coupled between the fastening device and the LED holding device and is configured to vary the position of the at least one LED in relation to the fastening device.
    Type: Grant
    Filed: August 10, 2007
    Date of Patent: August 6, 2013
    Assignee: OSRAM Gesellschaft mit beschraenkter Haftung
    Inventors: Zoran Bosnjak, Jeanine Chrobak-Kando, Harald Dellian
  • Publication number: 20130134873
    Abstract: The invention relates to a gas-tight electroluminescent device (100) with an electroluminescent part (104) and a sealing part (102). The electroluminescent part comprises an electroluminescent layer (114), a first electrode layer (112), and a second electrode layer (116). The sealing part comprises a substrate (106), a cover plate (110) for gas-tight sealing the electroluminescent device, and at least one receiver winding (105; 206; 208; 406) for receiving electromagnetic radiation.
    Type: Application
    Filed: July 18, 2011
    Publication date: May 30, 2013
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventor: Eberhard Waffenschmidt
  • Publication number: 20130127339
    Abstract: An organic EL module includes a flat plate-like light emitting panel configured to use an organic EL element; and a holding member configured to hold the light emitting panel. The holding member includes: a conductive member serving as at least a part of the holding member, and a capacitance component is provided between the conductive member and an electrode layer, the electrode layer being provided in the light emitting panel to supply a driving voltage thereto.
    Type: Application
    Filed: November 20, 2012
    Publication date: May 23, 2013
    Applicant: PANASONIC CORPORATION
    Inventor: Panasonic Corporation
  • Publication number: 20130106284
    Abstract: A light emitting device that provides white light of various color temperatures by using a double-sided light emitting element, a light emitting system comprising the same, and a method of fabricating thereof are provided. The light emitting device includes a double-sided light emitting element including a first light emitting element on one side of a substrate and emits light having a first wavelength and a second light emitting element on the other side of the substrate and emits light having a second wavelength, wherein the first wavelength and the second wavelength are different each other, a first variable resistor coupled to the first light emitting element and adjusting a first driving power applied to the first light emitting element, and a second variable resistor coupled to the second light emitting element and adjusting a second driving power applied to the second light emitting element.
    Type: Application
    Filed: December 21, 2012
    Publication date: May 2, 2013
    Inventor: Hyun Kim
  • Publication number: 20130093323
    Abstract: The invention relates to lighting devices (100) for producing ultimate light comprising first light of a relatively warm color and second light of a relatively cool color. The lighting devices (100) comprise first and second circuits (1, 2) for producing the first and second light, third circuits (3) for reaching a temperature per intensity state of the ultimate light, and fourth circuits (4) thermally coupled to the third circuits (3) and comprising temperature-dependent circuits for giving the ultimate light a, for example, relatively warm color at lower intensity states and for giving the ultimate light a, for example, relatively cool color at higher intensity states.
    Type: Application
    Filed: June 10, 2011
    Publication date: April 18, 2013
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventor: Harald Josef Günther Radermacher
  • Patent number: 8405313
    Abstract: An LED lamp includes a first LED string and a second LED string connected in parallel to each other and a variable resistor connected in series with one of the first and second LED strings. The first LED string provides a first color temperature. The LED string provides a second color temperature difference from the first color temperature. The variable resistor includes a resistance track with resistance coils wound thereon and a slider moveable along the resistance track. When a position of the slider of the variable resistor is changed, an electric current flowing through the one of the first and second strings is changed accordingly to adjust the color temperature of the LED lamp.
    Type: Grant
    Filed: October 6, 2010
    Date of Patent: March 26, 2013
    Assignee: Foxsemicon Integrated Technology, Inc.
    Inventor: Chih-Ming Lai
  • Patent number: 8390203
    Abstract: A method for producing a ceramic spiral pulse generator is provided. The method may include providing a film composite comprising at least one ceramic green film and at least one metal layer; winding the film composite to form a spirally wound winding; laminating the winding; and sintering the laminated winding so as to create a spiral pulse generator.
    Type: Grant
    Filed: May 26, 2008
    Date of Patent: March 5, 2013
    Assignee: OSRAM Gesellschaft mit beschraenkter Haftung
    Inventors: Juergen Graef, Steffen Walter, Andreas Kloss
  • Publication number: 20120313522
    Abstract: Generally, existing LED lamps often use robust metallic cases since each of the cases functions as a heat sink. Various shapes for increasing the heat dissipation properties of the case have been employed; there is no unified shape. Existing LED lamps therefore have a problem that they cannot be easily disassembled at the time of recycling. Thus, an object is to provide a lamp which can be easily disassembled at the time of recycling. A lamp includes: a case having a certain shape; an LED module including a semiconductor light-emitting device; and a power supply circuit provided inside the case, for driving the semiconductor light-emitting device to emit light, wherein on an outer side of the case, a step for splitting the case is formed.
    Type: Application
    Filed: January 7, 2011
    Publication date: December 13, 2012
    Applicant: PANASONIC CORPORATION
    Inventor: Minoru Myojo
  • Publication number: 20120286660
    Abstract: A high pressure sodium lamp includes a lamp base, a light admissible housing and a sodium vapor illumination arrangement, which includes a light core extended from the lamp base into the light admissible housing; a supporting frame, and an arc tube. The supporting frame longitudinally extends in the light admissible housing, and has an upper end portion supported by an upper portion of the light admissible housing, and a lower end portion supported by the light core. The arc tube has a first and a second electrode formed at two ends thereof and electrically connected with the upper end portion of the supporting frame and the light core respectively, wherein sodium vapor in the arc tube is electrically excited to discharge light having an intensity equivalent to that generated by more than 1000 W power.
    Type: Application
    Filed: May 9, 2011
    Publication date: November 15, 2012
    Inventors: Fuqing Qian, Song Qian
  • Publication number: 20120242226
    Abstract: A light emitting diode lamp may include a socket; a first circuit board; and at least one plug connector electrically connected to the socket; wherein the connector is connected to the circuit board by means of a plug section.
    Type: Application
    Filed: November 29, 2010
    Publication date: September 27, 2012
    Applicant: OSRAM AG
    Inventor: Thomas Preuschl
  • Publication number: 20120212131
    Abstract: A plasma jet spark plug having increased capacitive discharge current, and thus improved plasma generation efficiency. The plasma jet spark plug includes an insulating body having an axial hole, a center electrode, a metal shell, and a cavity portion formed by the inner peripheral surface of the insulating body and the leading end face of the center electrode. A conductive layer formed from a conductive material is provided on at least one portion of at least one of: (a) a surface on the insulating body outer peripheral surface opposed to the inner peripheral surface of the metal shell, the conductive layer electrically connected to a ground electrode; and (b) a surface on the insulating body inner peripheral surface opposed to the outer peripheral surface of the center electrode, the conductive layer electrically connected to the center electrode.
    Type: Application
    Filed: February 15, 2012
    Publication date: August 23, 2012
    Inventors: Hiroyuki Kameda, Daisuke Nakano, Naofumi Yamamura
  • Patent number: 8241066
    Abstract: An energy saving apparatus adapted for insertion between the center conductor of a lightbulb, and the center electrical contact of a light bulb socket. The device features an electrical component for varying or decreasing the amount of electrical current reaching the light bulb. The electrical component is situated in a central aperture of a collar and is surrounded by the collar which centers it in position within the light socket between the center conductor and the electrical contact of the socket. The collar has an exterior circumference which may be varied to adapt it to fit within a plurality of different sized light bulb sockets.
    Type: Grant
    Filed: January 5, 2009
    Date of Patent: August 14, 2012
    Inventors: John Castiglione, Jason Sunstein
  • Publication number: 20120056538
    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.
    Type: Application
    Filed: November 14, 2011
    Publication date: March 8, 2012
    Applicant: PANASONIC CORPORATION
    Inventors: Hiroshi SHIROUZU, Kenichi TAJIKA
  • Patent number: 8058807
    Abstract: A fluorescent lamp includes a ballast, a holder, a power regulating switch, and a fluorescent tube. The power regulating switch includes a housing, a base, plurality of inductors, a plurality of first contacts, a plurality of second contacts, a plurality of conducting bridges, a plurality of push rods, and a plurality of elastic members. The circuit of the power regulating switch has different values of inductance and output power by provision of the inductors, and the output power of the power regulating switch is regulated by the electrical connection between each of the first contacts and the respective different second contact so as to fit the fluorescent tube of different power specifications.
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: November 15, 2011
    Assignee: Kaoyi Electronic Co., Ltd.
    Inventor: Wen-Hsin Chao
  • Publication number: 20110266956
    Abstract: A display apparatus includes a substrate; a first insulating layer formed on the substrate and having an upper surface including a concavo-convex area including one or more concave features and one or more convex features; a first storage electrode overlaying the upper surface and a side surface of the first insulating layer and having an upper surface including a concavo-convex area including one or more concave features and one or more convex features, each concave feature of the first storage electrode overlying at least one respective concave feature of the first insulating layer, each convex feature of the first storage electrode overlying at least one respective convex feature of the first insulating layer; a second insulating layer formed on the first storage electrode; and a second storage electrode formed on the second insulating layer which separates the second storage electrode from the underlying first storage electrode.
    Type: Application
    Filed: July 12, 2011
    Publication date: November 3, 2011
    Inventors: Dae-Jin PARK, Kyu-Young Kim, Hyung-Il Jeon, Ju-Han Bae
  • Patent number: 7948183
    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.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: May 24, 2011
    Assignee: Aeon Lighting Technology Inc.
    Inventor: Chien-Kuo Liang
  • Publication number: 20110089833
    Abstract: Fluorescent lamp base cap, provided with a fluorescent lamp circuit for driving a fluorescent lamp when the lamp is connected to the base cap, two input electrodes to connect the circuit to the mains power system when the base cap is connected with the mains power system, a feeding line for feeding the fluorescent lamp circuit, and at least one output electrode for connecting the lamp with the fluorescent lamp circuit, wherein a resistor is arranged in parallel to the feeding line. Preferably, the resistor is connected to the two input electrodes, in parallel with the fluorescent lamp circuit.
    Type: Application
    Filed: November 5, 2007
    Publication date: April 21, 2011
    Inventor: Franciscus Adrianus Steur
  • Publication number: 20110043698
    Abstract: An electric resistor element is provided outside of the image region. The electric resistor element and a potential regulating element are connected outside of the image region. A part of a surface of a front substrate other than a surface thereof opposite to the rear substrate and a part of a surface of a rear substrate other than a surface thereof opposite to the front substrate are connected by a high thermal conducting member. The electric resistor element is disposed between the part of the surface of the front substrate, which is connected to the part of the surface of the rear substrate by the high thermal conducting member, and the part of the surface of the rear substrate, which is connected to the part of the surface of the front substrate by the high thermal conducting member.
    Type: Application
    Filed: July 9, 2010
    Publication date: February 24, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Nobuhiro Ito
  • Patent number: 7819109
    Abstract: Ignition apparatus includes high tension ignition cable. The cable is of low electrical resistance per unit length. A central core of the cable is formed of carbon fibre filaments. An insulating layer is provided around the core. A semiconductor layer is provided around the insulating layer. Another insulating layer is provided around the semiconductor layer. A layer of yarn around the other insulating layer forms a protecting layer. A protective layer of a flame retardant material forms an outer layer of the cable. The ignition apparatus also includes one or more of: a field stabilizer device for stabilizing and regulating high tension voltage in the cable; resistor spark plugs; connectors fitted to ends of the cable that include resistors therein, such as resistor spark plug boots.
    Type: Grant
    Filed: January 6, 2010
    Date of Patent: October 26, 2010
    Inventor: Luk Mui (Joe) Lam
  • Publication number: 20100264823
    Abstract: A spark plug with excellent vibration resistance performance and resistor load life-span characteristics, and a reduced diameter which is achieved by strengthening adhesion between a resistor and a conductive glass sealing layer.
    Type: Application
    Filed: March 23, 2009
    Publication date: October 21, 2010
    Inventors: Akira Suzuki, Tomoaki Kato, Tsutomu Shibata, Mamoru Musasa
  • Publication number: 20100259172
    Abstract: A plasma jet ignition plug including a wire-wound resistor for restraining the radiation of noise while allowing application of a sufficiently large current for generation of plasma to a spark discharge gap at the time of ignition. The wire-wound resistor having an inductance of 1 ?H to 100 ?H inclusive and a resistance of 1? or less, and is provided on at least one of a center electrode and a ground electrode. The wire-wound resistor restrains current which is generated by the influence of stray capacitance present in the plasma jet ignition plug, thereby reducing noise.
    Type: Application
    Filed: March 30, 2010
    Publication date: October 14, 2010
    Inventors: Daisuke Nakano, Yoshikuni Sato, Hiroyuki Kameda, Naohumi Yamamura, Daisuke Kasahara
  • Publication number: 20100225233
    Abstract: An alternating current light emitting diode device is disclosed, which comprises a substrate having a supporting surface and two supporting elements locating on the two sides of the supporting surface; a plurality of LED grains set on the supporting surface; a first chip resistor set on one of the two supporting elements; and a plurality of electrical wires providing electrical connections between the LED grains, and between the LED grain and the first chip resistor. Therefore, the total wattage of the AC LED device can be lowered to a designed range by using a chip resistor with proper resistance, and the total illumination efficiency can be increased.
    Type: Application
    Filed: February 18, 2010
    Publication date: September 9, 2010
    Applicant: Forward Electronics Co., Ltd.
    Inventors: Pei-Hsuan Lan, Jui-Hung Chen, Jen-Hua Yang, Yu-Bing Lan
  • Publication number: 20100194274
    Abstract: The invention provides a LED arrangement including a LED string of a series arrangement of LED segments. A LED segment includes a single LED or a series arrangement of LEDs. A switching element (12, 22) is arranged in parallel with each corresponding LED segment (10, 20) of the LED string, for controlling a current (52, 62) through the LED segment (10, 20). A capacitor (13, 23) is arranged in parallel with each corresponding LED segment (10, 20) in order to prevent the occurrence of possibly harmful current spikes while switching one or more LED segments. The LED arrangement may also include a switched-mode power supply (2001). The invention further provides a LED assembly. A plurality of such LED assemblies assembles easily into a LED arrangement according to the invention.
    Type: Application
    Filed: July 16, 2008
    Publication date: August 5, 2010
    Applicant: NXP B.V.
    Inventor: Gian Hoogzaad
  • Publication number: 20100156296
    Abstract: An image display apparatus has a plurality of phosphor films two-dimensionally disposed on a substrate, a matrix-pattern rib formed on the substrate to partition between the phosphor films, a plurality of metal backs each covering at least one phosphor film, and resistance wirings having a sheet resistance higher than that of the metal backs for electrically connecting the plurality of metal backs to each other. The resistance wirings are disposed to the apexes of the matrix-pattern rib and composed of a plurality of column lines and a plurality of row lines, the metal backs have first portions for covering the phosphor films on the substrate and second portions formed along the rib to connect the first portions to the column lines.
    Type: Application
    Filed: December 4, 2009
    Publication date: June 24, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Tomoya Onishi
  • Publication number: 20100148670
    Abstract: Row-directional wires, column-directional wires having a resistance higher than that of the row-directional wires, and electron-emitting devices are disposed on a substrate. The electron-emitting devices and the column-directional wires are each connected via a resistor element. The resistor element is provided with a local fuse portion that is easier to fuse than the other portion. The fuse portion is provided closer to the row-directional wire than to the column-directional wire.
    Type: Application
    Filed: December 8, 2009
    Publication date: June 17, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Kenichi Nakamura, Yukihiro Inoue, Koji Yamazaki
  • Patent number: 7492103
    Abstract: Disclosed is a multi-functional energy-saving fluorescent lamp in which an illumination sensor for distinguishing day and night, a timer for time control, and an infrared sensor for sensing a human are integrally provided to one lamp as a light source. The sensors measure illumination according to quantity of light or sense existence of a human. If the illumination around the lamp is lower than a certain level, e.g. at night, or a human exists, the sensors send a data signal for driving a lighting control circuit so that the lamp is automatically turned on/off. This lamp has simple structure and ensures low energy consumption. In addition, by addition of a reflection shade, heat emitted from the lamp is blocked and the illumination efficiency is improved. This lamp may be conveniently installed to any place using a socket-type light bulb without any separate sensor, thereby greatly improving convenience of a user.
    Type: Grant
    Filed: August 17, 2004
    Date of Patent: February 17, 2009
    Inventor: Yoon Kyu Hwang
  • Patent number: 6948829
    Abstract: A light emitting diode (LED) light bulb that includes plural individual elements as sub-assembly elements of the overall light bulb. Different sub-assembly elements of a lens, a LED printed circuit board, a housing also functioning as a heat sink, a lower housing, and other individual sub-assembly components are utilized. The LED printed circuit board sub-assembly containing the LEDs can also be provided relatively close to a base.
    Type: Grant
    Filed: January 28, 2004
    Date of Patent: September 27, 2005
    Assignee: Dialight Corporation
    Inventors: Anthony Verdes, Yuming Chen
  • Patent number: 6841952
    Abstract: An electronic stabilizer includes a high frequency output transformer which is connected in a primary side with a frequency modulation/power amplifying circuit, and in a secondary side with a plurality of high frequency ballasts and capacitors. The ballasts and the capacitors are matched in accordance with voltage and current of a plurality of lamps without affecting the frequency modulation/power amplifying circuit. The high frequency output transformer is capable of adjusting to output a desired voltage.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: January 11, 2005
    Inventor: Ching-Chung Lee
  • Publication number: 20040046507
    Abstract: The invention relates to a lamp base comprising an electronic component with a mounting plate (20) and electronic SMD components (10) fixed thereon. The mounting plate (20) has bent sections (201-205), so that the surface (20a) intended for mounting the electronic components (10) has areas (201a-205a) located on different planes. The mounting plate (20) is preferably curved in a meandering fashion to allow a compact spatial placement of the electronic component (10).
    Type: Application
    Filed: March 25, 2003
    Publication date: March 11, 2004
    Inventors: Andreas Alder, Matthias Burkhardt, Ulrich Ringer
  • Patent number: 6661177
    Abstract: The invention relates to a high-pressure discharge lamp comprising a discharge vessel which is enclosed, with clearance, by an outer bulb. The outer bulb is closed at one end by a lamp cap. The lamp is provided with an ignition circuit including at least a series arrangement of a glow starter and an ohmic impedance. According to the invention, the ohmic impedance is formed by a halogen incandescent lamp.
    Type: Grant
    Filed: August 7, 2001
    Date of Patent: December 9, 2003
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Gerardus Marinus Josephus Franciscus Luijks, Johan Leopold Victorina Hendrix
  • Patent number: 6635995
    Abstract: An improved fluorescent bulb for use in a work lamp for rough service applications. The fluorescent bulb is of the type having a fluorescent tube which emits light when energized by electric power. A base portion connects to the fluorescent tube and encloses a base cavity which supports a starter switch bulb electrically connected to the fluorescent tube. The starter switch bulb is protectively surrounded by a preferably woven glass-fabric sleeve which absorbs impacts caused by relative movement of components within the base cavity, including the starter switch bulb itself.
    Type: Grant
    Filed: October 10, 2000
    Date of Patent: October 21, 2003
    Assignee: National Electric Mfg. Corp.
    Inventors: Bruce A. Blye, James M. Galvez
  • Patent number: 6628082
    Abstract: A glow starter comprises a discharge vessel, filled with a filling including a rare gas, substantially transmitting ultraviolet rays of about 300 nm or less. A pair of electrodes, which are arranged in the discharge vessel, is adapted and arranged to touch each other by being heated by a glow discharge. The glow starter may be used for a high pressure discharge lamp, a high pressure discharge lamp apparatus, or a lighting fixture.
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: September 30, 2003
    Assignee: Toshiba Lighting & Technology Corporation
    Inventors: Naoya Matsumoto, Hiroyuki Ogata, Satoshi Iwasawa, Takahito Kashiwagi, Akira Ito, Daisuke Takayama, Makoto Hashimoato, Toshihiko Ishigami
  • Patent number: 6566815
    Abstract: The reflector high-pressure discharge lamp unit has a reflector (2), a high-pressure discharge lamp (3) arranged on the axis of the reflector (2), a first base part (4) connected to the neck (16) of the reflector (2), and a second base part (5), arranged in front of the radiation/light exit opening of the reflector (2) and in the form of a mechanical auxiliary part. The end of the second supply lead (18), led to the second lamp shank (10), of the high-pressure discharge lamp (3) is electrically connected directly to the end of the second high-voltage cable (7), and this free connecting region is embedded in the second base part (5). The result of this is a high degree of shock resistance and strain relief with this lamp connection.
    Type: Grant
    Filed: December 6, 2001
    Date of Patent: May 20, 2003
    Assignee: Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH
    Inventors: Florian Heike, Sven Schalk
  • Patent number: 6545416
    Abstract: A portable HMI light fixture with integral ballast for use in the motion picture and television industries. The inventive HMI fixture includes: a housing having a front portion and a rear portion; a socket secured in the front portion for removably receiving an HMI bulb; a ballast secured in the rear portion; and a thermal barrier separating the front and rear portions. Preferably the thermal barrier includes a reflective forward surface to direct radiated energy away from the rear portion, provides thermal insulation between the front portion and rear portion, and restricts airflow between the front and rear portions.
    Type: Grant
    Filed: March 27, 2001
    Date of Patent: April 8, 2003
    Inventors: Ken S. Fisher, Kevin C. Baxter