Discharge Device Load Patents (Class 315/56)
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Patent number: 6737811Abstract: A high intensity light source arrangement, which can prolong the service life span of the high intensity light source arrangement by better dissipating and reducing the heat generated, includes a luminary unit comprising a luminary circuit, at least a terminal electrically connected to the luminary circuit, and at least a luminary element adapted for electrifying with the terminal to emit light; a heat dissipation unit supporting the luminary unit and dissipating heat generated from the luminary unit; and a base housing for supporting the heat dissipation unit thereon including an electric input connector electrically connecting to the luminary unit.Type: GrantFiled: June 16, 2001Date of Patent: May 18, 2004Assignee: A L Lightech, Inc.Inventors: Long Bao Zhang, Hai Liao
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Patent number: 6734643Abstract: A discharge lamp which eliminates the large line noise that forms in discharge lamps during startup while preventing heat loss in the transformer by providing a pair of opposed electrodes for the main discharge and an auxiliary electrode arranged such that it does not come into contact with the discharge space for the main discharge, a feed circuit for supplying the discharge current to the electrodes for the main discharge, and a starter circuit which produces a high voltage between one of the electrodes for the main discharge and the auxiliary electrode. The high voltage generating part of the starter circuit which includes at least a high voltage transformer that is separated from the feed circuit while the discharge lamp and the high voltage generating part are formed as an integral unit.Type: GrantFiled: June 28, 2002Date of Patent: May 11, 2004Assignee: Ushiodenki Kabushiki KaishaInventors: Masashi Okamoto, Mineo Nakayama, Izumi Takaya
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Patent number: 6727662Abstract: A dimming control system includes a first circuit (100) and a second circuit (400). First circuit (100) is coupled in series with the AC line source (10) and receives brighten and dim commands from a user. The brighten and dim commands are communicated to second circuit (400) by momentarily altering the AC voltage waveforms observed by second circuit (400). Second circuit (400) provides an adjustable output signal that is coupled to inverter circuitry within an electronic dimming ballast. The output signal is adjusted by the second circuit (400) in dependence on the observed AC voltage waveforms.Type: GrantFiled: September 28, 2002Date of Patent: April 27, 2004Assignee: Osram Sylvania, Inc.Inventors: John G. Konopka, Sivakumar Thangavelu, Sameer Sodhi
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Patent number: 6720718Abstract: An efficient and safe lamp with a tungsten halogen capsule may be formed by using a two stage pyrophoric fuse as part of the electrical path to the capsule. The thin walled lamp with tungsten halogen capsule and two stage pyrophoric fuse yields a more efficient, less expensive and yet still safe tungsten halogen lamp. The thin walled lamp with tungsten halogen capsule and pyrophoric fuse provides a safe, thin walled outer envelope tungsten halogen lamp, provide a lamp with an oxygen sensitive fuse operable in low wattage lamps, provides a method manufacturing a pyrophoric fuse sensitive to moderate temperatures, provides an inexpensive and practical, low wattage, thin walled tungsten halogen lamp with a pyrophoric fuse.Type: GrantFiled: October 23, 2001Date of Patent: April 13, 2004Assignee: Osram Sylvania Inc.Inventors: Carl Douglas Trent, Jeffrey Paul Buschmann, Michael R. Kling
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Publication number: 20040066142Abstract: A lamp (10) includes an optics module (12) and an electronics module (14, 60, 70). The optics module (10) includes a plurality of LEDs (76) arranged on a printed circuit board (18) and having a plurality of input leads, and a heat sink (22) having a conduit (40) for the input leads. The plurality of LEDs (16) thermally communicate with the heat sink (22). The electronics module (14, 60, 70) is adapted to power the plurality of LEDs (16) through the input leads. The electronics module (14, 60, 70) has a first end (52) adapted to rigidly connect with the heat sink (22), and a selected electrical connector (50, 62, 72) arranged on a second end for receiving electrical power. The electronics module (14, 60, 70) further houses circuitry (80) arranged therewithin for adapting the received electrical power (82) to drive the LEDs (16).Type: ApplicationFiled: October 3, 2002Publication date: April 8, 2004Applicant: GELcore, LLCInventors: Tomislav J. Stimac, James T. Petroski, Robert J. Schindler, Greg E. Burkholder
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Patent number: 6713971Abstract: A lamp string with an open-circuit-proof structure, which comprises a socket, a bulb receptacle, a bulb and a fuse assembly; the center hole of the socket is furnished with a rectangular cavity for receiving a fuse assembly, and an outer rectangular cavity for mounting bulb receptacle plugged with a bulb; the center of the socket is furnished with a fuse assembly; in case of the tungsten filament of a bulb being burned out, or a bulb receptacle of a socket being lost, the power-supply circuit can still be maintained in a closed circuit condition through the fuse assembly, i.e., the whole lamp string can be always in lighting-up condition.Type: GrantFiled: January 9, 2003Date of Patent: March 30, 2004Inventor: Pi-Chu Wong
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Patent number: 6710553Abstract: A control circuit for operating a lamp or other electrically operated device using a conventional wall socket outlet that is selectively energized under the control of a conventional wall mounted switch. To permit the lamp to be independently controlled using either the wall switch or the lamp switch, a wall adapter unit is employed that plugs into the wall outlet and into which the lamp's power cord is plugged. Sensing means are employed to detect the operation of either the wall switch or the lamp switch to control an electrically operated switch which turns the lamp ON and OFF whenever either the wall switch or the lamp switch are operated. Different embodiments are provided for use with conventional electrical wiring and with either a conventional lamp or lamp incorporating additional circuitry to adapt it for use with the wall socket adapter.Type: GrantFiled: May 31, 2002Date of Patent: March 23, 2004Inventor: James D. Logan
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Publication number: 20040051471Abstract: The present invention relates to a reborn circuit of a light string, which includes an electrical wire connecting with several bulbs and a plug to complete an electrical circuit, wherein the plug is inside provided with a detector connecting with a high-voltage controller and a switch on the electrical circuit. The detector can detect an abnormal signal that one bulb is broken, and to start the controller and to change the switch contacting with the controller. So a new electrical circuit with high voltage is formed between the two conductive wires of the broken bulb, that breaks out the oxide layer at contact position of the aluminous wire to obtain a completed circuit for the circuit of the light string to be reborn.Type: ApplicationFiled: August 27, 2002Publication date: March 18, 2004Inventor: Chun-Chang Yen
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Publication number: 20040051462Abstract: A bent fluorescent lamp for backlighting a display providing uniform illumination. A fluorescent lamp is made from a tubular glass envelope having right angles formed therein. The right angles provide improved illumination of a plane surface for backlighting a liquid crystal display. The right angles eliminate dark regions in the illuminated surface. A right-angled bend is also formed at the ends of the fluorescent lamp. An electrode is positioned sufficiently far from a central portion of the lamp so that any dark spaces in the gas discharge of the fluorescent lamp, such as the Faraday dark space associated with a cathode of a lamp are not formed within the central portion. As a result, the central portion of the fluorescent lamp has a uniform brightness or intensity providing improved illumination for backlighting a liquid crystal display. The resulting more uniform illumination with less dark regions results in a more legible display and more accurate information being displayed.Type: ApplicationFiled: August 27, 2002Publication date: March 18, 2004Inventors: Christian Sauska, Arpad Pirovic
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Publication number: 20040036417Abstract: The present invention comprises a lamp assembly with an integral circuit to provide electrical connectivity to the lamp and methods of making the lamp assembly. The integral circuit in one embodiment is constructed from a conductive polymer. The polymer may be injection molded, and the lamp assembly housing and integral circuit may be manufactured using a two-shot injection molding process. The present invention may be used in the production of a wide range of lamp assemblies, including vehicle headlamp assemblies.Type: ApplicationFiled: August 20, 2002Publication date: February 26, 2004Applicant: GUIDE CORPORATIONInventor: Tra H. Goss
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Patent number: 6696788Abstract: An electric discharge lamp includes a light transmissive inner jacket that defines a sealed inner chamber, a first material in the inner chamber that emits light when activated, and a light transmissive outer jacket around the inner jacket. The outer jacket defines a sealed outer chamber between the inner and outer jackets that contains a second fill material. The second fill material, when activated by heat from the inner chamber when the lamp is operating, converts ultraviolet (UV) and deep blue light emitted from the inner chamber to visible light, thereby increasing an amount of visible light transmitted through the outer jacket compared to an amount of visible light transmitted through the inner jacket.Type: GrantFiled: June 13, 2002Date of Patent: February 24, 2004Assignee: Osram Sylvania Inc.Inventors: Walter P. Lapatovich, Christopher Scott Nordahl
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Publication number: 20040032218Abstract: A flash lamp (10), comprising a gas-filled discharge tube (10) made of glass and, at each end, a power electrode (14, 15) that is sealed by means of a glass solder (13), has a glass including one or more of the following U.V. transmission values Tw: at 180 nm: Tw>5%, preferably >9%; at 200 nm: Tw>30%, preferably >45%; at 254 nm: Tw>60%, preferably >80%. The inside diameter of the discharge tube (11) may be larger than 1.2 times the value of the plasma channel diameter. The starting electrode (16) may be part of the reflector (30-33) or be connected electrically thereto. Flash capacitor (42) may be designed for a charging voltage above 370 volts, preferably above 400 volts.Type: ApplicationFiled: August 6, 2003Publication date: February 19, 2004Inventor: Ingo Dunisch
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Patent number: 6693379Abstract: The high-pressure discharge lamp of the present invention includes: a discharge chamber that is formed in a silica glass tube, a pair of electrodes that are arranged with ends confronting each other in the discharge chamber; metal foil parts that are superposed and bonded to the other ends of the electrodes, and sealing sections for hermetically sealing the discharge chamber and which are parts for embedding the other ends of the electrodes and the metal foil parts in the glass at the two ends of the silica glass tube. The electrodes and the metal foil parts are embedded in the glass in a state in which metal coils are wrapped around the vicinities of the junctions of the electrodes and metal foil parts. The ends of the metal foil parts on the electrode side are further formed as tapered portions.Type: GrantFiled: December 13, 2002Date of Patent: February 17, 2004Assignee: NEC CorporationInventor: Kazuhisa Nishida
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Patent number: 6690113Abstract: A retrofit kit, including a fluorescent lighting assembly for replacing an incandescent light assembly, includes a housing having a ballast receiving section and a fluorescent lamp receiving section. A ballast is disposed within the ballast receiving section and a socket assembly, generally adjustable, is disposed within the lamp receiving section and is in electrical communication with the ballast. The socket assembly includes a socket cup with an opening to receive a fluorescent lamp in a vertical orientation.Type: GrantFiled: May 9, 2002Date of Patent: February 10, 2004Assignee: Genlyte Thomas Group LLCInventor: Sherman Ng
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Publication number: 20040017156Abstract: A lighting device having a circuit board with a fine tube inserting opening, and electric parts, outputs high-frequency power to an emission bulb having a bent tube. A cover member has a cap on the one end side, and a holder on the other end side. A fine tube protruding from the end of the emission bulb, and having a bent portion on the middle portion thereof, is disposed so that the tip end portion from the bent portion is positioned close to the axis passing through the center of the cap as compared with the base portion from the bent portion on the side of the emission bulb. A principal amalgam is contained at a position on the cap side as to the position where the electric parts, which emit relatively a great quantity of heat, have been disposed. The bent portion is disposed on the side of the emission bulb as to the circuit board, and the tip end portion is inserted into the fine tube inserting opening, and is extended on the cap side.Type: ApplicationFiled: July 16, 2003Publication date: January 29, 2004Applicant: TOSHIBA LIGHTING & TECHNOLOGY CORP.Inventors: Takeo Yasuda, Kunihiko Ikada, Toshiyuki Ikeda, Yuichiro Takahara, Tetsuya Oono, Nobuhiro Tamura, Masahiro Izumi
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Publication number: 20040007981Abstract: When many LED lamps are provided on a printed wiring board to secure an amount of light, light can only be emitted from the side on which the lamps are provided, which limits the range in which light is emitted. To solve this problem, the present invention provides a plurality of chip type LED lamps 1 chained using conductive members 2 made of a flexible plate material.Type: ApplicationFiled: July 9, 2002Publication date: January 15, 2004Applicants: HAKUYO DENKYUU KABUSHIKI KAISHA, FUSO DENKI KOUGYOU KABUSHIKI KAISHA, METRO DENKI KOUGYOU KABUSHIKI KAISHAInventor: Yoshihiko Shibata
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Patent number: 6670764Abstract: A discharge lamp unit with noise shields includes a discharge lamp, a discharge lamp control circuit, a filter circuit, the first and the second shield cases, and a power supply. The first shield case shields a discharge lamp control circuit and a filter circuit. The second shield case exclusively shields the filter circuit. Further, a ground wire of the filter circuit and the first shield case are electrically connected. Still further, a ground wire of the control circuit and the second shield case are electrically connected.Type: GrantFiled: February 14, 2002Date of Patent: December 30, 2003Assignee: Denso CorporationInventor: Kenji Aida
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Patent number: 6670763Abstract: A low voltage display lamp is provided for use in standard threaded lamp sockets. The lamp has an IR-reflective layer, preferably gold, coated on the convex side of the reflector to reflect infrared radiation (IR) away from the ballast to reduce the ballast's operating temperature. The IR-reflective coating is effective to reflect IR radiation away from the lamp housing.Type: GrantFiled: May 15, 2001Date of Patent: December 30, 2003Assignee: General Electric CompanyInventors: Thomas M. Golz, Denis A. Lynch
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Patent number: 6667576Abstract: The effect lamp according to the invention comprises a baseplate, at least one perforated plate which is located in front of the baseplate and facing the observer and which comprises light passageway openings as well as at least one light source which illuminates the space between the baseplate and the perforated plate which is adjacent thereto and/or the space between two adjacent perforated plates. The baseplate and the perforated plate(s) bear text, image and/or color information whereby different optically appealing effects are generated. The optical effects alter depending on the illumination conditions inside and outside the effect lamp and depending on the location of the observer in relation to the effect lamp.Type: GrantFiled: December 4, 2001Date of Patent: December 23, 2003Inventor: Berthold Westhoff
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Publication number: 20030230982Abstract: A light switch dimmer device for operating and controlling a current supply to a lighting fixture up to seven hundred (700) watts wherein the light switch dimmer includes a mean for receiving power, a triac, a trigger diode electrically connected to the triac, an RC circuit component shunt, and a variable resistor between 300k ohms and 500k ohms for controlling the voltage to the trigger diode which controls the phase of the triac thereby dictating the voltage applied to a light fixture load. The dimmer may comprise a one-way or three-way switch.Type: ApplicationFiled: June 13, 2002Publication date: December 18, 2003Inventors: Bruce Pagano, James Pagano, Steve Wong Kwok Din
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Patent number: 6664726Abstract: This invention relates to a fluorescent lamp with a discharge vessel enclosing a discharge path and containing a gas fill. The gas fill may be by excited by a discharge arc. The discharge vessel has at least two sections located adjacent to each other. There are bypass means for providing a bypass path for the gas discharge during a startup of the lamp between the two adjacent sections of the discharge vessel. The bypass path results in a short-cut across the impedance of a portion of the discharge path. A method for starting a discharge arc of the fluorescent lamp is also disclosed. In the method, a voltage is applied between two electrodes across the discharge path, and a bypass path is provided between two ends of a bypassed part of the discharge path. The discharge path is divided into a bypassed part and a remaining part.Type: GrantFiled: January 8, 2002Date of Patent: December 16, 2003Assignee: General Electric CompanyInventor: István Magai
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High pressure discharge lamp, high pressure discharge lamp lighting apparatus and luminaire therefor
Patent number: 6661176Abstract: A high pressure discharge lamp includes a light-transmissive ceramic discharge vessel with an envelope having a maximum outer diameter D1 and open ends, a metal pipe having one end, i.e., a top end fused in the open end of the light-transmissive ceramic discharge vessel and the other end, i.e., a base end protruding from the light-transmissive ceramic discharge vessel, a pair of electrodes each having one end, i.e., a base end connectively supported on the base end of the metal pipe and the other end, i.e., a top end extending within the light-transmissive ceramic discharge vessel, and a discharge agent which is filled in the light-transmissive ceramic discharge vessel, wherein it is also characterized by that the high pressure discharge lamp has an overall length L1, and the overall length L1 and the maximum outer diameter of D1 satisfies a following equation. 1.5≦L1/D1≦4.Type: GrantFiled: December 12, 2001Date of Patent: December 9, 2003Assignee: Toshiba Lighting & Technology CorporationInventors: Hisashi Honda, Sadao Sakuguchi, Masazumi Ishida, Seiji Ashida, Shigemi Oku, Takahito Kashiwagi -
Patent number: 6657392Abstract: The invention relates to a silent discharge lamp in which support elements for supporting a top plate opposite a base plate are designed as a unipartite component of the top plate and have a tapering contour.Type: GrantFiled: May 21, 2002Date of Patent: December 2, 2003Assignee: Patent-Treuhand-Gesellschaft fuer Elektrische Gluehlampen mbHInventors: Lothar Hitzschke, Frank Vollkommer
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Publication number: 20030214239Abstract: A safety shield assembly for an electrical apparatus comprises a bellows which is recessed into the planar surface of the apparatus which surrounds a pair of electrical blades, and which faces the planar face of a wall receptacle when the electrical apparatus is plugged into the receptacle. The safety shield assembly includes the bellows and a cavity into which the bellows is secured. In its uncompressed state, the bellows extends nearly the length of the electrical blades; in its compressed state, the bellows recedes fully into the cavity.Type: ApplicationFiled: April 28, 2003Publication date: November 20, 2003Inventor: Robert G. Dickie
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Publication number: 20030209996Abstract: A light dimmer capable of receiving a faceplate fastener while thermally insulating the fastener from a heat-generating device, such as a triac or a field-effect transistor, is presented. In a preferred embodiment, the dimmer includes a thermally insulating boss integrally formed with the body of the dimmer such that the boss includes a fastener-receiving aperture adapted to be axially aligned with the fastener-receiving openings of the faceplate. In addition, the dimmer includes a heat-dissipating aluminum yoke to which the heat-generating device is in thermal communication, thereby allowing the yoke to act as a heat sink. The yoke has a fastener-receiving aperture formed therein in axial alignment with the fastener-receiving aperture of the thermally insulating boss, with the yoke fastener-receiving aperture proportioned to receive the fastener therethrough in non-contacting relationship.Type: ApplicationFiled: May 10, 2002Publication date: November 13, 2003Applicant: Lutron Electronics Co., Inc.Inventors: Jason O. Adams, Gregory S. Altonen
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Patent number: 6642659Abstract: A stand lamp assembly includes a stand frame unit and auxiliary and main lamp units. The auxiliary lamp unit includes a night lamp disposed removably on a night lamp socket, a light sensor to control activation of the night lamp in accordance with ambient light conditions, and a sleeve disposed around the night lamp and having a rotatable cover body that can be opened to permit removal of the night lamp via an opening in the sleeve.Type: GrantFiled: July 12, 2002Date of Patent: November 4, 2003Inventor: Duan-Cheng Hsieh
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Patent number: 6635995Abstract: 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: GrantFiled: October 10, 2000Date of Patent: October 21, 2003Assignee: National Electric Mfg. Corp.Inventors: Bruce A. Blye, James M. Galvez
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Patent number: 6628080Abstract: A spring clip 10 for assembling a light source to a shroud comprises a base 12 extending in a first plane and having an aperture 14 centrally located therein. Aperture 14 is substantially circular and is provided with cutouts 14a to provide flexibility. Upstanding walls 16, 18, are provide, one at each end of the base 12. A first lip 20 extends orthogonally away from the wall 16 in a second plane and a second lip 22 extends orthogonally away from the wall 18, also in the second plane. The second plane is substantially parallel to the first plane but spaced therefrom. Flags 24, 26 are formed, respectively, with the lips 20, 22, the flags extending away from the lips in a plane transverse to the first and second planes. Extended ends of a light source are accommodated into the apertures 14 and the lips and walls of the clips frictionally engage an interior surface of a shroud.Type: GrantFiled: April 24, 2002Date of Patent: September 30, 2003Assignee: Osram Sylvania Inc.Inventors: Ebon L. McCullough, David J. Lamprey, Jr.
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Patent number: 6628081Abstract: An electric lamp, in particular a motor vehicle auxiliary light lamp, and a method for producing such a lam. The base of the lamp comprises an annular metal part (5) or resilient design for holding the lamp vessel (1), and a plastic part (6) provided with at least one hollow contact pin (7, 8). A supply lead (3, 4) projecting from the lamp vessel (1) is threaded into the hollow contact pin (7, 8) and welded to the latter such that the metal part (5) is under mechanical stress. In this way, backlash-free plug-and-socket connections are produced between the lamp vessel (1) and the metal part (5) or between the metal part (5) and the plastic part (6).Type: GrantFiled: May 6, 2002Date of Patent: September 30, 2003Assignee: Patent-Treuhand-Gesellschaft fuer elektrische Gluehlampen mbHInventors: Gerhard Behr, Peter Helbig
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Patent number: 6624580Abstract: A high pressure electric discharge lamp adapted to utilize dielectric barrier discharges can include an arc tube having a discharge space that contains at least a rare gas and an outer tube airtightly surrounding the arc tube. At least one material selected from Ne, Ar, Kr, Xe, F2, Cl2, Br2, I2 and N2 or a mixture thereof that are apt to produce a dielectric barrier discharge can be filled in the space between the arc tube and the outer tube at pressure preferably between 1.3 and 100 [kPa] and more preferably between 40 and 80 [kPa]. The type and the pressure of the rare gas contained in the space is selected as to make the dielectric barrier discharge starting voltage in the space lower than the discharge starting voltage in the discharge space.Type: GrantFiled: January 30, 2002Date of Patent: September 23, 2003Assignee: Stanley Electric Co., Ltd.Inventors: Aiko Kanegae, Masaaki Muto, Shinya Omori, Kimihiro Iritono
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Patent number: 6621223Abstract: The present invention discloses a structure of package socket and package legs for three-primary-color LED and the manufacturing method of this structure. One of the leg forms a die bonding seat and a common negative bonding pad, the other three legs form positive bonding pads. Said negative and positive bonding pads are arranged in the four corners of a square, with two legs stretch to the right, the other two legs stretch to the left. Then punch by a punch machine with a tooling to form an array of the structures, or by electrode plating or by etching to form the array. The four legs are then bending 90° to one side near the bonding pads such that it can stand alone. After die bond and wire bond has performed, the LED is sealed by transparent epoxy molding, and then cut to single structures, or the structure is cut to single structures before the LED is sealed by transparent epoxy. The other structure is by further bending the four legs near the end of the legs to satisfy surface mount technology (SMT).Type: GrantFiled: April 5, 2002Date of Patent: September 16, 2003Inventor: Chang Hsiu Hen
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Patent number: 6621222Abstract: A power-saving lamp is constructed to include a lamp head, a bulb fastened to the lamp head, a polygonal light emitting circuit assembly suspended from a bracket in the lamp head within the bulb, the polygonal light emitting circuit assembly having LEDs in each of the peripheral sidewalls thereof, and a power control circuit board mounted in the lamp head and electrically connected between the lamp head and the polygonal light emitting circuit assembly to convert input AC power from the lamp head into the desired working voltage for the polygonal light emitting circuit assembly.Type: GrantFiled: October 25, 2002Date of Patent: September 16, 2003Inventor: Kun-Liang Hong
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Publication number: 20030168989Abstract: The present invention discloses a structure of package socket and package legs for three-primary-color LED and the manufacturing method of this structure. One of the leg forms a die bonding seat and a common negative bonding pad, the other three legs form positive bonding pads. Said negative and positive bonding pads are arranged in the four corners of a square, with two legs stretch to the right, the other two legs stretch to the left. Then punch by a punch machine with a tooling to form an array of the structures, or by electrode plating or by etching to form the array. The four legs are then bending 90° to one side near the bonding pads such that it can stand alone. After die bond and wire bond has performed, the LED is sealed by transparent epoxy molding, and then cut to single structures, or the structure is cut to single structures before the LED is sealed by transparent epoxy. The other structure is by further bending the four legs near the end of the legs to satisfy surface mount technology (SMT).Type: ApplicationFiled: April 5, 2002Publication date: September 11, 2003Inventor: Chang Hsiu Hen
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Patent number: 6611105Abstract: An electric bulb structure includes a housing, a base post extended into an inside of the housing from one end of the housing, a shade mounted on an opening of the housing, a first conductive wire and a second conductive wire each extended into the inside of the housing from an outside of the housing and each extended through the base post, a first filament having a first end connected to the first conductive wire, a second filament having a first end connected to the second conductive wire, and a third conductive wire having a first end connected to a second end of the first filament, and a second end connected to a second end of the second filament.Type: GrantFiled: March 12, 2002Date of Patent: August 26, 2003Inventor: Yu-Sheng Chiu
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Patent number: 6608444Abstract: A mercury-free high-intensity discharge lamp operating apparatus includes a horizontally operated high-intensity discharge lamp including an arc tube in which a luminous material is enclosed and a pair of electrodes are arranged in the arc tube; a ballast including an alternating current generation means for supplying alternating current to the pair of electrodes; and a magnetic field application means for applying in substantially vertical direction a magnetic field having a component that is substantially perpendicular to a straight line connecting heads of the pair of electrodes; wherein mercury is not included as the luminous material in the arc tube.Type: GrantFiled: May 25, 2001Date of Patent: August 19, 2003Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Ryo Minamihata, Kiyoshi Takahashi, Yuriko Kaneko, Mamoru Takeda, Hideaki Kiryu, Takayuki Murase, Masato Yoshida
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Publication number: 20030151368Abstract: A lighting fixture and a method of fabricating the same are shown and described herein in one particular embodiment, a light fixture comprises a plurality of vanes projecting radially outward from a central core, and a series of lights coupled to the fixture. The vanes can each be semi-circular, and can each be identical in size, such that the fixture as a whole is generally spherical. In addition, a method of fabricating a light fixture by bending an elongated structure alternatingly in opposite directions to form such a plurality of vanes is shown and described.Type: ApplicationFiled: February 8, 2002Publication date: August 14, 2003Inventor: Joseph M. Ahroni
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Patent number: 6593706Abstract: A high pressure neon arc lamp and method of using the same for photodynamic therapies is provided. The high pressure neon arc lamp includes a housing that encloses a quantity of neon gas pressurized to about 500 Torr to about 22,000 Torr. At each end of the housing the lamp is connected by electrodes and wires to a pulse generator. The pulse generator generates an initial pulse voltage to breakdown the impedance of the neon gas. Then the pulse generator delivers a current through the neon gas to create an electrical arc that emits light having wavelengths from about 620 nanometers to about 645 nanometers. A method for activating a photosensitizer is provided. Initially, a photosensitizer is administered to a patient and allowed time to be absorbed into target cells. Then the high pressure neon arc lamp is used to illuminate the target cells with red light having wavelengths from about 620 nanometers to about 645 nanometers.Type: GrantFiled: October 2, 2001Date of Patent: July 15, 2003Assignee: The Regents of the University of CaliforniaInventors: Robert C. Sze, Irving J. Bigio
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Patent number: 6577065Abstract: An electric lamp is provided which includes a sealed thin-walled outer envelope containing a fill gas having a high thermal conductivity. A lamp capsule is contained within the outer envelope and is in series with an oxidizable fuse also contained within the outer envelope. The fill gas serves to reduce the temperature of the fuse during normal operation of the lamp thereby reducing the power loss in the fuse, increasing overall lamp efficacy and eliminating glow of the fuse. The lamp capsule is quickly extinguished if the outer envelope is broken and the fuse exposed to air. In one embodiment, an incandescent lamp is provided wherein the lamp capsule is a tungsten halogen capsule, the fuse is a tungsten coil wire and the fill gas is helium.Type: GrantFiled: September 26, 2001Date of Patent: June 10, 2003Assignee: Osram Sylvania Inc.Inventor: Michael R. Kling
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Patent number: 6570332Abstract: An electrode-to-ballast interconnect is provided in combination with a fluorescent lamp including a discharge tube bent substantially in a plane. The discharge tube is shaped at least in part to define a substantial portion of the boundary of a zone in the plane. The part of the tube defining the boundary includes at least one straight portion. The discharge tube has a symmetry axis in the plane and sealed tube ends provided with electrodes, and the tube ends re-enter said zone. A base housing is laid within said zone and receives the tube ends. The base housing includes a ballast circuit which is located at least partly on a circuit board positioned substantially parallel to the plane. The electrode-to-ballast interconnect comprises electrode-in-leads which are connected to each electrode and embedded in the tube ends. Terminals are anchored in and protruding from the circuit board. The electrode-in-leads are pre-formed to a shape suitable for connecting to the terminals.Type: GrantFiled: June 19, 2000Date of Patent: May 27, 2003Assignee: General Electric CompanyInventors: József Fülöp, Sándor Lukács, Ákos Ocsovai, Ferenc Papp, István Würsching
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Patent number: 6566819Abstract: A touch operated control system is provided that advantageously provides enhanced functionality, including a programmable timer that sets a light coupled to the dimmer to OFF after a predetermined period of time. The control system generally includes a conductive housing provided with a power receptacle, a power switch, a fuse, and a printed circuit board mounted within the housing. The printed circuit board includes switching circuitry by means of a programmed integrated circuit operationally connected to the housing, and a timer is operationally connected to the switching circuitry. By touching the housing, the switching circuitry is activated to automatically connect or remove power to or from the power receptacle. The sequence and duration of the touch activation function varies the system response to provide enhanced control, functionality and flexibility.Type: GrantFiled: April 2, 2001Date of Patent: May 20, 2003Inventor: Gregory A. Wolff
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Patent number: 6566815Abstract: 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: GrantFiled: December 6, 2001Date of Patent: May 20, 2003Assignee: Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbHInventors: Florian Heike, Sven Schalk
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Patent number: 6552491Abstract: A tubular fluorescent lamp has a light emissive portion and an integral adjacent portion for containing power circuitry, such as an electronic ballast for providing high voltage power to electrodes of the lamp. All necessary electrical connections between the power circuitry and the electrodes are provided either within or on the lamp structure itself.Type: GrantFiled: December 13, 2000Date of Patent: April 22, 2003Assignee: Koninklijke Philips Electronics N.V.Inventors: Gert W. Bruning, Jose Azevedo
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Patent number: 6552502Abstract: Light source device which includes a discharge lamp which contains at least 0.15 mg mercury per cubic millimeter of the volume of the discharge space, a pair of electrodes opposite one another to create the main discharge and spaced a distance from one another of less than or equal to 2.5 mm, and an auxiliary electrode arranged such that it does not come into contact with the discharge space for the main discharge. The light source device further including a feed circuit to feed the discharge current to the electrodes for the main discharge, and a starter which produces a high voltage between one of the electrodes of the two electrodes for the main discharge and the auxiliary discharge, such that the starter produces a voltage two to five times as high as the voltage necessary for starting the main discharge in the lamp at the room temperature state.Type: GrantFiled: March 13, 2002Date of Patent: April 22, 2003Assignee: Ushiodenki Kabushiki KaishaInventors: Masashi Okamoto, Mineo Nakayama, Izumi Takaya
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Publication number: 20030071573Abstract: A rechargeable emergency lamp tube includes a lamp tube holder, the lamp tube holder having a base adapted to obtain AC power supply from an electric socket and a socket adapted to hold a tube for emitting light, a rechargeable battery and a control circuit board mounted inside the lamp tube holder, the control circuit board driving input AC power supply to charge the rechargeable battery and, converting DC battery power supply into AC power supply for the tube upon power failure.Type: ApplicationFiled: October 17, 2001Publication date: April 17, 2003Inventor: Yung-Lin Chien
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Patent number: 6545416Abstract: 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: GrantFiled: March 27, 2001Date of Patent: April 8, 2003Inventors: Ken S. Fisher, Kevin C. Baxter
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Patent number: 6545417Abstract: A ballast socket for compact fluorescent lamp is disclosed. The ballast socket includes: a case having an upper case, which has a receiving space for receiving a lamp and a connection terminal connected with the lamp at a side of the receiving space, and a lower case, which has a through hole at a lower center of the upper case; a controller mounted in the inside of the case for controlling lighting of the lamp; pins for connecting PCB and the connection terminal; and a printed circuit board on which various circuit components are mounted. The ballast socket is similar with an incandescent lamp socket in outward form but the compact fluorescent lamp not having ballast is used in the ballast socket. Therefore, the ballast socket prevents waste of resources and environmental pollution by saving electricity and improves productivity of the lamp by manufacturing the lamp not having the ballast.Type: GrantFiled: September 10, 2001Date of Patent: April 8, 2003Inventor: Dai Sung Moon
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Patent number: 6545415Abstract: A high efficiency high voltage ignition coil with segmented high voltage bobbin (15) with the last few bays (16,17,18) having fewer secondary winding turns than the average and thicker flanges separating the bays, and further including an inductor (20) of inductance at least 0.5 mH with a core material which is lossy in the 100 KHz to 1 MHz range, the inductor located between the end of the high voltage winding and the spark gap (7b) so as to reduce the peak voltages across the last few high voltage bays immediately following the spark gap breakdown.Type: GrantFiled: November 16, 2000Date of Patent: April 8, 2003Inventor: Michael A. V. Ward
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Patent number: 6531824Abstract: The present invention relates to a novel energy efficient, universal replaceable electronic ballast, using compatible adapters, for use in fluorescent lighting fixtures and/or table/floor lamps. This novel energy efficient, universal replaceable electronic ballast comprises a family of electronic ballasts for use with currently available fluorescent lamps; the first being a Circlelite lamp, the second, a compact SpringLamp, the third, either a double or triple biaxial compact fluorescent lamp, and the fourth, a 2D fluorescent lamp. Additionally, these electronic ballasts are available in either an instant start (IS) or a rapid start (RS) designs. It is advantageous to use these universal ballasts with the aforementioned fluorescent lamps because of their increased longevity, typically 9,000 to 10,000 hours, their reduced operating costs and energy efficiencies. Additionally. there are five newly designed families of adapters that are compatible with the universal plug-in electronic ballasts.Type: GrantFiled: September 21, 2000Date of Patent: March 11, 2003Assignee: Technical Consumer Products, IncInventor: Ellis Yan
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Publication number: 20030034738Abstract: A high pressure electric discharge lamp adapted to utilize dielectric barrier discharges can include an arc tube having a discharge space that contains at least a rare gas and an outer tube airtightly surrounding the arc tube. At least one material selected from Ne, Ar, Kr, Xe, F2, Cl2, Br2, I2and N2 or a mixture thereof that are apt to produce a dielectric barrier discharge can be filled in the space between the arc tube and the outer tube at pressure preferably between 1.3 and 100 [kPa] and more preferably between 40 and 80 [kPa]. The type and the pressure of the rare gas contained in the space is selected as to make the dielectric barrier discharge starting voltage in the space lower than the discharge starting voltage in the discharge space.Type: ApplicationFiled: January 30, 2002Publication date: February 20, 2003Applicant: Stanley Electric Co., Ltd.Inventors: Aiko Kanegae, Masaaki Muto, Shinya Omori, Kimihiro Iritono
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Patent number: 6522084Abstract: An electrodeless discharge lamp operating apparatus includes a transparent discharge vessel (1) in which a luminescent substance is enclosed; a coil (3) for generating an alternating electromagnetic field that discharges the luminescent substance; a power source (4) for supplying alternating current to the coil (3). The coil (3) comprises at least a magnetic material, and is disposed on an inner side than the outer side wall of the discharge vessel (1), and the luminescent substance comprises at least a rare gas, and does not comprise mercury.Type: GrantFiled: June 15, 2001Date of Patent: February 18, 2003Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Koji Miyazaki, Toshiaki Kurachi, Mamoru Takeda, Katsushi Seki, Young-Jae Cho