Incandescent Filament Lamp Patents (Class 313/578)
  • Patent number: 10393826
    Abstract: A microfabricated sensor includes a first reflector and a second reflector in a sensor cell, separated by a cavity path segment through a sensor cavity in the sensor cell. A signal window is part of the sensor cell. A signal emitter and a signal detector are disposed outside of the sensor cavity. The signal emitter is separated from the first reflector by an emitter path segment which extends through the signal window. The second reflector is separated from the second reflector by a detector path segment which extends through the signal window.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: August 27, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Roozbeh Parsa, William French
  • Patent number: 9263247
    Abstract: In various embodiments, a lamp has a bulb with a pinch seal, which holds a light-emitting element by means of a wire clip. The wire clip consists of tungsten and has, at an end remote from films embedded in the pinch seal, an eyelet for holding the light-emitting element. An end of the wire clip which is close to a film is bent back. A film associated with the wire clip is folded in a roof-shaped manner. Overall, it is thus possible to realize a lamp with a long life.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: February 16, 2016
    Assignee: OSRAM GmbH
    Inventors: Thomas Heil, Heinz Lang, Roland Stark, Georg Rosenbauer
  • Patent number: 9218952
    Abstract: An electric lamp having a longitudinal axis is provided. The electric lamp may include a base; and a built-in lamp, which has a pinch seal. Two power supply lines protrude out of the pinch seal. Two pins for connection to the power supply lines are provided on the base side. In each case one pin and one power supply line are connected by means of a mounting clip. A mounting clip is a punched sheet-metal part having a bottom which is configured so as to be substantially rectangular with a width B and a length L. Two spring arms are attached to the bottom, which spring arms surround the pinch seal of the built-in lamp. In each case one means for fastening a pin and one means for fastening a power supply line are provided on the mounting clip.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: December 22, 2015
    Assignee: OSRAM GmbH
    Inventors: Andreas Nittke, Roland Stark
  • Patent number: 9214330
    Abstract: A light source device comprising a filament showing high electric power-to-visible light conversion efficiency is provided. The light source device of the present invention comprises a translucent gastight container, a filament disposed in the translucent gastight container, and a lead wire for supplying an electric current to the filament. The filament comprises a substrate formed from a metal material and a visible light-absorbing film covering the substrate. The visible light-absorbing film is transparent to lights of infrared region. The reflectance of the substrate for visible lights is thereby made low, and the reflectance of the substrate for infrared lights is thereby made high. Therefore, radiation of infrared lights is suppressed, and visible luminous efficiency can be enhanced.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: December 15, 2015
    Assignee: STANLEY ELECTRIC CO., LTD.
    Inventors: Yasuyuki Kawakami, Takahiro Matsumoto, Takao Saito, Kei Emoto
  • Publication number: 20150145407
    Abstract: An electric lamp having a longitudinal axis is provided. The electric lamp may include a base; and a built-in lamp, which has a pinch seal. Two power supply lines protrude out of the pinch seal. Two pins for connection to the power supply lines are provided on the base side. In each case one pin and one power supply line are connected by means of a mounting clip. A mounting clip is a punched sheet-metal part having a bottom which is configured so as to be substantially rectangular with a width B and a length L. Two spring arms are attached to the bottom, which spring arms surround the pinch seal of the built-in lamp. In each case one means for fastening a pin and one means for fastening a power supply line are provided on the mounting clip.
    Type: Application
    Filed: October 29, 2014
    Publication date: May 28, 2015
    Inventors: Andreas Nittke, Roland Stark
  • Patent number: 8970110
    Abstract: Described embodiments include an incandescent lighting system and a method. A described system includes a gas filled and sealed glass envelope. The system includes at least two filaments enclosed within the glass envelope. Each filament of the at least two filaments is configured to generate light in response to a flow of electric current. The system includes a controller circuit configured to manage the at least two filaments in response to a filament management schedule. The filament management schedule includes managing the respective flow of electric current through each filament of the at least two filaments. In an embodiment, the schedule includes managing the respective flow of electric current through each filament of the at least two filaments so that not all of the at least two filaments generate light at any one time.
    Type: Grant
    Filed: October 17, 2012
    Date of Patent: March 3, 2015
    Assignee: Elwha LLC
    Inventors: Roderick A. Hyde, Jordin T. Kare, Charles Whitmer, Lowell L. Wood, Jr.
  • Publication number: 20150048734
    Abstract: In various embodiments, a lamp has a bulb with a pinch seal, which holds a light-emitting element by means of a wire clip. The wire clip consists of tungsten and has, at an end remote from films embedded in the pinch seal, an eyelet for holding the light-emitting element. An end of the wire clip which is close to a film is bent back. A film associated with the wire clip is folded in a roof-shaped manner. Overall, it is thus possible to realize a lamp with a long life.
    Type: Application
    Filed: July 10, 2014
    Publication date: February 19, 2015
    Inventors: Thomas HEIL, Heinz LANG, Roland STARK, Georg ROSENBAUER
  • Patent number: 8907563
    Abstract: A halogen incandescent lamp for vehicle headlamps includes a coiled incandescent filament arranged within a transparent lamp vessel, wherein the incandescent filament is dimensioned in such a way that, during operation on an operating voltage of 13.2 V, the halogen incandescent lamp has an electrical power consumption in the region of greater than 22 watts and less than or equal to 27 watts and generates a luminous flux in the range of from 400 to 600 lumens.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: December 9, 2014
    Assignee: OSRAM GmbH
    Inventors: Harald Kaps, Oliver Woisetschlaeger
  • Publication number: 20140292187
    Abstract: According to embodiments, a heater lamp that includes a bulb and an anchor ring is provided. The bulb has a linear portion and at least one bent portion. The bulb has a filament therein that includes a plurality of first coils which are connected in series, and a second coil which is connected to the first coils in series and has a number of turns less than that of the first coils. The bulb is sealed at both ends and light transmissive. The anchor ring holds the filament inside the bulb.
    Type: Application
    Filed: September 20, 2013
    Publication date: October 2, 2014
    Applicant: Toshiba Lighting & Technology Corporation
    Inventors: Masaaki Takatsuka, Yoshitaka Fujita, Tsuyoshi Ohashi
  • Publication number: 20140292188
    Abstract: An object of the present invention is to provide a filament showing improved conversion efficiency with a simple configuration. According to the present invention, surface of a filament material processed into a predetermined shape is processed into a mirror surface by mechanical polishing, and surface roughness (center line average roughness Ra) thereof is thereby made to be 1 ?m or smaller. Reflectance of the filament can be thereby improved, and emissivity of the filament for lights of the infrared wavelength region can be suppressed.
    Type: Application
    Filed: October 24, 2012
    Publication date: October 2, 2014
    Inventor: Takahiro Matsumoto
  • Patent number: 8841842
    Abstract: A filament of simple structure showing improved conversion efficiency is provided. There is provided a light source device comprising a light-transmitting gas-tight container, a filament disposed in the light-transmitting gas-tight container, and a lead wire for supplying an electric current to the filament, wherein the filament consists of a single crystal. Sum of concentration of lattice defects and impurity concentration of the filament consisting of a single crystal is preferably lower than 0.01%.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: September 23, 2014
    Assignee: Stanley Electric Co., Ltd.
    Inventor: Takahiro Matsumoto
  • Publication number: 20140265824
    Abstract: Embodiments of the present invention generally relate to a tubular lamp with a coiled filament having an overwind wrapped around the coil. In one embodiment, the tubular lamp has a coiled coil filament, and the coiled coil has an overwind wrapped around the coiled coil.
    Type: Application
    Filed: March 10, 2014
    Publication date: September 18, 2014
    Inventor: Joseph M. RANISH
  • Patent number: 8823252
    Abstract: An incandescent lamp is provided having first and second attach lead wires and a filament having a coil portion between first and second end portions. The first and second end portions are crimped to the first and second wires, respectively. The first end portion has a bent portion and the second end portion has a second bent portion to prevent migration of the coil portion relative to the first and second lead wires.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: September 2, 2014
    Assignee: Ford Global Technologies, LLC
    Inventors: Donald P. Iacovoni, Frederick Masters
  • Patent number: 8796924
    Abstract: An incandescent halogen lamp for vehicle headlights may include a lamp base which defines a reference plane for orienting the incandescent halogen lamp in the vehicle headlight and includes a holder part having a substantially rotationally symmetrical external contour for holding a translucent lamp vessel, with the holder part having a first holder-part section connected to a component of the lamp base and a second holder-part section from which the translucent lamp vessel projects, wherein the second holder-part section has a smaller external diameter than the first holder-part section and wherein the height of the lamp base above the reference plane is in the 11.5-to-16.6-mm range.
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: August 5, 2014
    Assignee: OSRAM AG
    Inventors: Gerhard Behr, Peter Helbig, Christian Seichter
  • Publication number: 20140184060
    Abstract: An incandescent halogen lamp for vehicle headlights may include a lamp base which defines a reference plane for orienting the incandescent halogen lamp in the vehicle headlight and includes a holder part having a substantially rotationally symmetrical external contour for holding a translucent lamp vessel, with the holder part having a first holder-part section connected to a component of the lamp base and a second holder-part section from which the translucent lamp vessel projects, wherein the second holder-part section has a smaller external diameter than the first holder-part section and wherein the height of the lamp base above the reference plane is in the 11.5-to-16.6-mm range.
    Type: Application
    Filed: February 23, 2011
    Publication date: July 3, 2014
    Applicant: OSRAM AG
    Inventors: Gerhard Behr, Peter Helbig, Christian Seichter
  • Publication number: 20140132151
    Abstract: A thermal radiation marker adapted to emit radiation within the thermal portion of the infrared spectrum. According to some embodiments of the invention, the thermal radiation marker may include an incandescent filament and a glass or quartz enclosure. The incandescent filament may be adapted to produce radiation at least within the thermal portion of the infrared spectrum. The glass or quartz enclosure may include at least a portion that is substantially thin, and may enclose pressurized inert gas and the incandescent filament surrounded by the inert gas. At least a portion of the glass or quartz enclosure may be sufficiently thin so as to enable good transmittance therethrough for thermal radiation approximately in the 3-5 ?m wavelength band. The pressurized inert gas enclosed within the glass or quartz enclosure and surrounding the incandescent filament may enable a regenerative cycle to take place within the enclosure.
    Type: Application
    Filed: April 30, 2013
    Publication date: May 15, 2014
    Applicants: OPTIGO SYSTEMS LTD., ELTA SYSTEMS LTD.
    Inventors: ELTA SYSTEMS LTD., OPTIGO SYSTEMS LTD.
  • Patent number: 8723421
    Abstract: Described embodiments include an incandescent lighting system and a method. A described system includes a gas filled and sealed glass envelope. The system includes a gas filled glass envelope. The system includes at least two filaments enclosed within the glass envelope. Each filament of the at least two filaments is configured to generate visible light in response to a flow of electric current. The system includes a sensor configured to detect an aspect of a filament of the at least two filaments and to generate a sensor signal indicative of the aspect. The system includes a controller circuit configured to manage the at least two filaments in response to a filament management schedule. The filament management schedule includes adjusting a flow of electric current through a filament of the at least two filaments in response to the sensor signal.
    Type: Grant
    Filed: October 17, 2012
    Date of Patent: May 13, 2014
    Assignee: Elwha LLC
    Inventors: Roderick A. Hyde, Jordin T. Kare, Charles Whitmer, Lowell L. Wood Jr.
  • Patent number: 8692462
    Abstract: A halogen bulb for vehicle headlights, comprising at least one filament, which is designed such that it can be used as a light source for generating a low-beam or high-beam and during operation has a lower electric power consumption than the filaments of conventional halogen bulbs used to generate a low-beam or high-beam.
    Type: Grant
    Filed: August 9, 2010
    Date of Patent: April 8, 2014
    Assignee: OSRAM AG
    Inventors: Christoph Hoffmann, Jenny Trommer, Gabriele Wahl, Katja Zeller
  • Publication number: 20140084786
    Abstract: A filament of simple structure showing improved conversion efficiency is provided. There is provided a light source device comprising a light-transmitting gas-tight container, a filament disposed in the light-transmitting gas-tight container, and a lead wire for supplying an electric current to the filament, wherein the filament consists of a single crystal. Sum of concentration of lattice defects and impurity concentration of the filament consisting of a single crystal is preferably lower than 0.01%.
    Type: Application
    Filed: September 20, 2013
    Publication date: March 27, 2014
    Applicant: STANLEY ELECTRIC CO., LTD.
    Inventor: Takahiro MATSUMOTO
  • Publication number: 20140084785
    Abstract: A filament showing high radiation characteristics and hardly suffering from disconnection and film separation is provided by using a high melting point metal compound such as tantalum carbide. As the filament, a filament comprising a tungsten base material 30, a tantalum layer 31 coating the tungsten base material 30, and a tantalum carbide layer 32 coating the tantalum layer 31 is used. High adhesion is obtained at the interface of the layers of tungsten and tantalum by utilizing high adhesion of tungsten and tantalum.
    Type: Application
    Filed: September 20, 2013
    Publication date: March 27, 2014
    Applicant: STANLEY ELECTRIC CO., LTD.
    Inventors: Takahiro MATSUMOTO, Shigemi SUZUKI
  • Publication number: 20130320844
    Abstract: A halogen incandescent lamp for vehicle headlamps includes a coiled incandescent filament arranged within a transparent lamp vessel, wherein the incandescent filament is dimensioned in such a way that, during operation on an operating voltage of 13.2 V, the halogen incandescent lamp has an electrical power consumption in the region of greater than 22 watts and less than or equal to 27 watts and generates a luminous flux in the range of from 400 to 600 lumens.
    Type: Application
    Filed: January 20, 2012
    Publication date: December 5, 2013
    Applicant: OSRAM GMBH
    Inventors: Harald Kaps, Oliver Woisetschlaeger
  • Patent number: 8581492
    Abstract: A filament coil for an incandescent lamp assembly is provided. The filament coil includes a helical winding extending generally along a longitudinal axis between a first end and a second end. The filament coil further includes a winding having a first pitch ratio at the first and second ends, and a different, second pitch ratio along an intermediate portion located between the first and second ends.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: November 12, 2013
    Assignee: General Electric Company
    Inventors: Agnes Mezeine Fudala, Zoltan Bako
  • Patent number: 8466629
    Abstract: A lamp tube includes a encapsulation and a power rectifier member. The power rectifier member includes a power rectifier to convert alternating current (AC) energy into direct current (DC) energy. A first holder defining a first cavity for receiving the power rectifier, and a second cavity for detachably receiving and electrically connecting with one end of the encapsulation; and a first side cover detachably connected to the first holder to cover the first cavity.
    Type: Grant
    Filed: October 31, 2010
    Date of Patent: June 18, 2013
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventor: Jun-Ping Liu
  • Patent number: 8450930
    Abstract: The present invention relates to a sheet-shaped heat and light source. The sheet-shaped heat and light source includes a carbon nanotube film and at least two electrodes. The at least two electrodes are separately disposed on the carbon nanotube film and electrically connected thereto. The carbon nanotube film includes a plurality of carbon nanotubes arranging isotropically, along a fixed direction, or along different directions. Moreover, a method for making the sheet-shaped heat and light source and a method for heating an object adopting the same are also included.
    Type: Grant
    Filed: December 29, 2007
    Date of Patent: May 28, 2013
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Chang-Hong Liu, Shou-Shan Fan
  • Patent number: 8421328
    Abstract: An infrared heat lamp (200) having a vertical burning position includes an outer tubular member (202) and a heating element (208) having a coiled portion (214) at least partially disposed within the outer tubular member (202). The heating element (208) includes first and second terminal ends (210, 212), wherein the coiled portion (214) is defined therebetween, the coiled portion (214) having a plurality of turns (216) defining a through passage (218). The heat lamp (200) further includes an inner elongate member (222) disposed within the through passage (218) of the coiled portion (214), the inner elongate member (222) having a plurality of support members (224) extending therefrom. Each of the plurality of support members (224) engages at least one of the plurality of turns (216) of the coiled portion (214), whereby the coiled portion (214) is supported by the plurality of support members (224) when the heating element (208) is in a vertical orientation.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: April 16, 2013
    Assignee: OSRAM SYLVANIA Inc.
    Inventors: Arturo De Santiago, Andres Rodriguez
  • Patent number: 8410676
    Abstract: The present invention relates to a sheet-shaped heat and light source. The sheet-shaped heat and light source includes a carbon nanotube layer and at least two electrodes. The at least two electrodes are separately disposed on the carbon nanotube layer and electrically connected thereto. Moreover, a method for making the sheet-shaped heat and light source and a method for heating an object adopting the same are also included.
    Type: Grant
    Filed: December 29, 2007
    Date of Patent: April 2, 2013
    Assignees: Beijing Funate Innovation Technology Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Chen Feng, Peng Liu, Kai-Li Jiang, Yang Wei, Shou-Shan Fan
  • Patent number: 8278823
    Abstract: A thermo-optically functional composition is disclosed. The composition includes a solid solution of at least two materials selected such that the composition emits thermal radiation, wherein each material is selected from the group consisting of metal carbides, metal nitrides, metal oxides, metal borides, metal silicides and combinations thereof, wherein each metal is selected from the group consisting of tungsten or tungsten alloys, hafnium or hafnium alloys, niobium or niobium alloys, tantalum or tantalum alloys, titanium or titanium alloys, zirconium or zirconium alloys, and combinations of two or more thereof.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: October 2, 2012
    Assignee: General Electric Company
    Inventors: Sergiy Zalyubovskiy, William Paul Minnear, Vikas Midha
  • Publication number: 20120146495
    Abstract: A halogen bulb for vehicle headlights, comprising at least one filament, which is designed such that it can be used as a light source for generating a low-beam or high-beam and during operation has a lower electric power consumption than the filaments of conventional halogen bulbs used to generate a low-beam or high-beam.
    Type: Application
    Filed: August 9, 2010
    Publication date: June 14, 2012
    Applicant: OSRAM AG
    Inventors: Christoph Hoffmann, Jenny Trommer, Gabriele Wahl, Katja Zeller
  • Patent number: 8164240
    Abstract: The invention relates to a dipping cap comprising a filament for a dual-filament lamp. The dimension between an outlet of an outgoing section of the filament, on the side of the base, and the point on the outgoing section of the filament, arranged opposite the outgoing section of the filament on the side of the base and welded to the dipping cap, measures more than approximately 5.2 mm and less than 9.7 mm, and the dimension between the outlet of the outgoing section of the filament, on the side of the base, and the front surface of the dipping cap, which is adjacent to the outgoing section of the filament, welded to the dipping cap, measures more than approximately 5.9 mm and less than 11.9 mm.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: April 24, 2012
    Assignee: Osram AG
    Inventors: Frank Auer, Gerhard Behr, Peter Helbig, Christian Seichter, Klaus Wittmann, Sascha Zelt
  • Patent number: 8106585
    Abstract: A manufacturing method of a high-pressure mercury lamp includes an electric field application step in which an electric field is applied to at least a light emission part (4) with the high-pressure mercury lamp being kept at a high temperature. This can reduce impurities such as hydrogen and alkali metals in a discharge space (8) and glass forming the light emission part (4). As a consequence, blackening and devitrification of the high-pressure mercury lamp while the lamp is lit can be reduced.
    Type: Grant
    Filed: March 17, 2004
    Date of Patent: January 31, 2012
    Assignee: Panasonic Corporation
    Inventors: Jun Sakaguchi, Syunsuke Ono, Yoshitaka Kurimoto, Toshiyuki Shimizu, Shinichiro Hataoka, Kiyoshi Takahashi, Takashi Tsutatani, Tomoyuki Seki, Makoto Horiuchi, Tsuyoshi Ichibakase
  • Publication number: 20120019135
    Abstract: A lamp burner having a quartz body comprising a light emitting chamber intermediate a pair of end portions. A filament may be positioned within the light emitting chamber and a multilayer optical coating provided on at least a portion of the body. The coating may comprise a plurality of layers of a first material comprising silica, a plurality of layers of a second material comprising rutile titanium dioxide, and a plurality of layers of a third material having an index of refraction intermediate the indices of refraction of the layers of first material and the layers of second material.
    Type: Application
    Filed: July 20, 2011
    Publication date: January 26, 2012
    Inventors: Miles Rains, Howard R. Gray
  • Publication number: 20120019134
    Abstract: A halogen incandescent burner comprising a quartz body comprising a light emitting chamber, a filament positioned within the light emitting chamber, and a multilayer optical coating on at least a portion of the chamber. The coating may include a plurality of layers of a low refractive index material and a high refractive index material having a total thickness of at least nine microns, wherein the gain of the burner is at least 1.7. The high refractive index material may comprise tantala and the low refractive index material may comprise silica.
    Type: Application
    Filed: July 20, 2011
    Publication date: January 26, 2012
    Inventors: Miles Rains, Howard R. Gray, Leroy A. Bartolomei, Norman L. Boling
  • Publication number: 20110266948
    Abstract: The present invention relates to a filament for an infrared lamp used as a heater and a method of manufacturing the same. The method of fabricating the filament includes cutting a thin graphite plate into a thin graphite plate strip of a predetermined size, integrally adhering two sheets of the thin graphite plate strips using heat, primarily heating and plasticizing the integrally adhered graphite plate strips within an inert gas, coating a silicon-series coating solution on the primarily heated and plasticized graphite plate strips and naturally drying the graphite plate strips, and heating and plasticizing the naturally dried graphite plate strips using an identical process to the primary plasticity process and then naturally cooling the heated and plasticized graphite plate strips.
    Type: Application
    Filed: December 22, 2009
    Publication date: November 3, 2011
    Applicant: Lichtzen Co. Ltd.
    Inventors: Yong Sun Kim, Young Nam Kim, Kyong Hoon Park, Joeng Yeob Yun
  • Publication number: 20110215718
    Abstract: A halogen incandescent lamp for operation at mains voltage is provided. The halogen incandescent lamp may include a unilaterally pinched bulb in which is accommodated a filament and a halogen-containing filling as well as an inert gas, wherein at least one bulb section disposed in the vicinity of the pinch is oval shaped, said filling containing xenon as the inert gas.
    Type: Application
    Filed: October 22, 2009
    Publication date: September 8, 2011
    Applicant: OSRAM GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG
    Inventors: Thomas Heil, Heinz Lang, Georg Rosenbauer
  • Patent number: 7977855
    Abstract: An incandescent lamp that is specially adapted for use in combination with a concave reflector in providing a high-intensity beam of light. The lamp includes an optimized filament shape that consist of a filament arranged in coiled coils having a longitudinal axis perpendicular to the reflector longitudinal axis and the larger coils of the coiled coil filament spaced from each other by a distance substantially the same as the filament coil diameter. The filament length, width, and height can be limited to substantially twelve millimeters to optimize the lamp for use with concave reflectors having a focal length of substantially twenty five millimeters, any type curvature, and any size diameter.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: July 12, 2011
    Inventor: Randal Lee Wimberly
  • Patent number: 7804233
    Abstract: A light bulb includes two or more filaments. When one filament burns out another filament can be connected so that the light bulb is still operational and does not have to be discarded.
    Type: Grant
    Filed: July 25, 2008
    Date of Patent: September 28, 2010
    Inventors: Shaam P. Sundhar, Totada R. Shantha, Theodore T. Masters
  • Publication number: 20100181907
    Abstract: The invention provides a filament lamp (1) having a filament (20), wherein the filament comprises tantalum carbide. The filament lamp comprises a lamp base part filament construction (15) which comprises a lamp base part (10) with a base part (11) top and a coil (21) comprising tantalum carbide connected to lead-in connections (23), the lead-in connections extending through the base part. The filament lamp further comprises a lamp bulb (40) connected to the base part top (11), thereby providing a filament enclosure (44), which filament enclosure comprises a gas filling (45). The invention further provides a process for making such a lamp.
    Type: Application
    Filed: June 10, 2008
    Publication date: July 22, 2010
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Mathias Hubertus Johannes Van Rijswick, Adriaantje Pieternella Mouws-Van Rossum
  • Patent number: 7755291
    Abstract: An incandescent lamp that emits infrared light and a method of making the lamp includes a filament assembly inside a polycrystalline aluminum oxide (PCA) envelope, where the filament assembly preferably has a coiled tungsten filament, solid metal ends of tungsten or molybdenum attached to the coiled tungsten filament, and leads at distal ends of the solid metal ends. End caps are attached to ends of the envelope and have openings through which a respective one of the leads extends, where the leads are each made of an electrically conductive material having a coefficient of thermal expansion compatible with the end caps, such as niobium. The leads are attached to the end caps with glass-ceramic sealing frits. The end caps and sealing frits seal a suitable gas inside the envelope.
    Type: Grant
    Filed: June 27, 2005
    Date of Patent: July 13, 2010
    Assignee: Osram Sylvania Inc.
    Inventors: Jeffrey T. Neil, Victor E. Perez, Lewis H. Palmer, III, Joseph E. Lester
  • Publication number: 20100156289
    Abstract: The invention relates to an incandescent lamp having a carbide-containing luminous element and current supplies holding the luminous element. A luminous element is introduced into a bulb together with a filling in a vacuum-tight manner, the luminous element having a metal carbide the melting point of which is preferably above that of tungsten, and the luminous element being helical. The luminous element has a core wire and a wrapped filament and is constituted of various materials and contains a metal carbide.
    Type: Application
    Filed: April 26, 2007
    Publication date: June 24, 2010
    Applicant: Osram Gesellschaft Mit Beschrankter Haftung
    Inventors: Axel Bunk, Matthias Damm, Georg Rosenbauer, Christa Bunk, Ludwig Bunk, Maximilian Bunk, Stefan Bunk
  • Patent number: 7714487
    Abstract: It is possible to prolong service life of a discharge lamp of hot-cathode type and to reduce a diameter thereof. A discharge lamp 1 is provided with an electrode 3. The electrode 3 has a heater 4 made up a coil portion 4a, and a first lead wire portion 4b and a second lead wire portion 4c that respectively extend from rear ends of this coil portion 4a and applied by an electron emission material 3a. In the electrode 3, a first lead-in wires 6a is connected to the first lead wire portion 4b and a second lead-in wires 6b is connected to the second lead wire portion 4c, so that the coil portion 4a is arranged vertically along the tube axis of the glass tube 2. The electrode 3 is also provided a sleeve 7 covering surrounding of the coil portion 4a and having openings in the faces respectively opposite to the forward end and rear end of the coil portion 4a. An open end 7a of the sleeve 7 exceeds a forward end of the coil portion 4a, thereby protecting the coil portion 4a.
    Type: Grant
    Filed: January 19, 2005
    Date of Patent: May 11, 2010
    Assignee: Sony Corporation
    Inventors: Yoshiichi Horikoshi, Yukio Hara, Masahiro Kikuchi, Hiroshi Takahashi, Ryouichi Yoshida, Hiroto Watanabe
  • Publication number: 20100084972
    Abstract: A lightbulb comprising a base and a selectively detachable bulb means is disclosed. The base has an enclosure with a socket means, a base connector means, and a circuit means for conveying electric power from the socket means to the connector means. The bulb means has a bulb connector means that is mechanically and electrically cooperative with the base connector means to secure the bulb means to the base and conduct electrical power therethrough. The bulb means further includes a glass bulb that is fixed to the bulb connector means and encloses a non-opaque, substantially hollow capsule that includes within a filament. The capsule further has a non-reactive gas sealed therein.
    Type: Application
    Filed: October 6, 2008
    Publication date: April 8, 2010
    Inventor: Shaam Sundhar
  • Publication number: 20100054719
    Abstract: A filament lamp has a bulb comprised of a straight light emitting tube from which a pair of flat hermetically sealed portions extend, a plurality of coiled filaments arranged within the light emitting tube, in the tube axis direction a pair of internal leads are connected to ends of the filament by a respective one of a plurality of metal foils that are embedded in the hermetically sealed portions, and external leads are connected to the metal foils. The width of metal foils embedded in the hermetically sealed portions is increased so as not to cause them to melt even when an electric current to be supplied to the filament lamp is increased, the hermetically sealed portions being made wider than the external diameter of the light emitting tube and the width between outer margins of the metal foils in a direction at right angles of the tube axis is greater than the internal diameter of the light emitting tube.
    Type: Application
    Filed: August 20, 2009
    Publication date: March 4, 2010
    Applicant: Ushiodenki Kabushiki Kaisha
    Inventors: Yoichi MIZUKAWA, Kenji TANINO
  • Publication number: 20100021147
    Abstract: A filament lamp is provided. The filament lamp includes: a long light emitting section including a plurality of filaments aligned with one another in an axial direction of the light emitting section, wherein electric power is independently supplied to each of the filaments; a sealing section that seals the light emitting section, including: a first sealing section provided at one end of the light emitting section; and a second sealing section provided at the other end of the light emitting section; a plurality of metal foils embedded in the sealing section; a plurality of external leads each connected to a corresponding one of the metal foils and extending from the sealing section to the outside; and a plurality of glass pipes each provided on the sealing section so as to cover a corresponding one of the external leads.
    Type: Application
    Filed: July 27, 2009
    Publication date: January 28, 2010
    Applicant: Ushio Denki Kabushiki Kaisha
    Inventors: Akinobu NAKASHIMA, Shinji Taniguchi
  • Publication number: 20090302761
    Abstract: The invention relates to a discharge lamp comprising a discharge vessel (2) and an electrode frame (3) which is provided with a lamp coil (33) and at least some sections of which extend into the discharge vessel (2). Electrode holders (31, 32) are connected to a glass bead (34), at least some areas of which are sealed into an end region (21) of the discharge vessel (2).
    Type: Application
    Filed: November 6, 2007
    Publication date: December 10, 2009
    Applicant: OSRAM GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
    Inventors: Gerald Hammer, Alfred Langer, Thomas Noll, Klaus Pankratz
  • Patent number: 7576480
    Abstract: The present invention relates to an electrical incandescent lamp (1), in particular a halogen incandescent lamp, in which luminous element limbs (14, 16) extend in lamp vessel structural parts (42, 44), the lamp vessel structural parts surrounding the luminous element limbs in sections at a distance, and the axes of the lamp vessel structural parts (42, 44) extending at a distance from one another in order to increase the energy efficiency of the incandescent lamp, in particular if a layer (42a, 44a) which reflects IR radiation is applied to the lamp vessel structural parts. When using the pinch-sealing technology, it is possible to achieve a small system voltage halogen lamp having a long life expectancy and at the same time requiring little energy for reaching the operating temperature.
    Type: Grant
    Filed: April 24, 2006
    Date of Patent: August 18, 2009
    Assignee: OSRAM Gesellschaft mit beschraenkter Haftung
    Inventor: Roland Stark
  • Patent number: 7518299
    Abstract: A compact PAR lamp (10) has a hollow body (12) arrayed along a longitudinal axis (14) and has an open end (16) and a substantially closed neck end (18) and containing a light source capsule (20) within the hollow body (12) and coaxial with the longitudinal axis (14). The light source capsule (20) has electrical lead-ins (22, 24) that extend therefrom and exit via the neck end (18). A first parabolic reflector (26) is formed within the body (12) and has a wide portion (28) adjacent the open end (16) and a narrow portion (30) spaced therefrom along the longitudinal axis (14). A second reflector (32) is formed within the body (12) and extends from the narrow portion (30) into the neck end (18). A lens (34) closes the open (16), and a base (36) is attached to the closed neck end (18).
    Type: Grant
    Filed: September 27, 2006
    Date of Patent: April 14, 2009
    Assignee: OSRAM Sylvania Inc.
    Inventor: Michael R. Kling
  • Publication number: 20090045742
    Abstract: The invention relates to an incandescent lamp (1) which is provided with an illuminant (7) which is inserted in a bulb (2) together with a filling in a vacuum-tight manner, the illuminant (7) comprising a metal carbide that has a melting point above that of tungsten. The bulb also comprises a source and a sink for a material of which the illuminant is depleted during use.
    Type: Application
    Filed: October 18, 2005
    Publication date: February 19, 2009
    Inventors: Axel Bunk, Matthias Damm, Georg Rosenbauer
  • Patent number: 7487781
    Abstract: An energy converter according to the present invention includes a heat source (radiator 1), which receives externally applied energy and raises its temperature, thereby emitting electromagnetic radiations, and a radiation cut portion (mesh 2) for cutting down infrared radiations, of which the wavelengths are longer than a predetermined wavelength. The mesh 2 is a woven or knitted mesh of metal wires. The openings of the woven or knitted mesh have an aperture size that is smaller than the predetermined wavelength.
    Type: Grant
    Filed: November 8, 2004
    Date of Patent: February 10, 2009
    Assignee: Panasonic Corporation
    Inventors: Makoto Horiuchi, Mitsuhiko Kimoto, Kazuaki Ohkubo, Yuriko Kaneko, Mika Sakaue
  • Publication number: 20090033219
    Abstract: The invention relates to an electric lamp (1) with a base at one end and with an outer bulb (3), mounted in a base (2), and at least one integral lamp (4), preferably a high-voltage halogen lamp, which is arranged within the outer bulb (3), and at least two power supply wires (6) from the base (2) to the integral lamp (4), the integral lamp (4) being held on the power supply wires (6). At least one of the power supply wires (6) has, in the region of the end (12) on the integral-lamp side, at least one u-shaped bend (11) for accommodating a base (8) of the integral lamp (4).
    Type: Application
    Filed: May 20, 2008
    Publication date: February 5, 2009
    Applicant: OSRAM GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
    Inventor: Roland Stark
  • Patent number: 7456558
    Abstract: The invention relates to an electric incandescent lamp, in particular a vehicle headlight, having at least one incandescent filament which is arranged within a light-permeable lamp vessel, the at least one incandescent filament having different pitch factors at its two ends. In order to increase the luminance at the light/dark boundary of the lower beam, that end of the incandescent filament which is near to the base has a lower pitch factor.
    Type: Grant
    Filed: August 2, 2005
    Date of Patent: November 25, 2008
    Assignee: Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH
    Inventors: Manfred Bühler, Klaus Wittmann