Envelope Composition Patents (Class 313/636)
  • Patent number: 10570502
    Abstract: In one embodiment, a method for forming an alkali resistant coating includes forming a first oxide material above a substrate and forming a second oxide material above the first oxide material to form a multilayer dielectric coating, wherein the second oxide material is on a side of the multilayer dielectric coating for contacting an alkali. In another embodiment, a method for forming an alkali resistant coating includes forming two or more alternating layers of high and low refractive index oxide materials above a substrate, wherein an innermost layer of the two or more alternating layers is on an alkali-contacting side of the alkali resistant coating, and wherein the innermost layer of the two or more alternating layers comprises at least one of: alumina, zirconia, and hafnia.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: February 25, 2020
    Assignee: Lawrence Livermore National Security
    Inventors: Thomas F. Soules, Raymond J. Beach, Scott C. Mitchell, Gary DeBell
  • Patent number: 9732940
    Abstract: A lighting apparatus includes a wavelength converting apparatus. The wavelength converting apparatus includes a hollow tube and a wavelength converting material. The hollow tube has an accommodating chamber. The wavelength converting material is positioned in the accommodating chamber.
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: August 15, 2017
    Assignee: LEXTAR ELECTRONICS CORPORATION
    Inventors: Kuang-Neng Yang, Kun-Hua Wu, Jo-Hsiang Chen, Tai-Hua Ho, Tzong-Liang Tsai, Chih-Hao Lin
  • Patent number: 9637408
    Abstract: Sodium-containing aluminosilicate and boroaluminosilicate glasses are described herein. The glasses can be used as substrates for photovoltaic devices, for example, thin film photovoltaic devices such as CIGS photovoltaic devices. These glasses can be characterized as having strain points ?540° C., thermal expansion coefficient of from 6.5 to 9.5 ppm/° C., as well as liquidus viscosities in excess of 50,000 poise. As such they are ideally suited for being formed into sheet by the fusion process.
    Type: Grant
    Filed: May 26, 2010
    Date of Patent: May 2, 2017
    Assignee: Corsam Technologies LLC
    Inventors: Bruce Gardiner Aitken, James Edward Dickinson, Jr., Timothy J Kiczenski, Michelle Diane Pierson-Stull
  • Patent number: 9018838
    Abstract: The invention describes a high intensity gas-discharge lamp (1) comprising a discharge vessel (5, 5?) enclosing a fill gas in a discharge chamber (2) and comprising a pair of electrodes (3, 3?, 4, 4?) extending into the discharge chamber (2), and wherein the fill gas includes a halide composition comprising a halide of sodium and, optionally, scandium iodide to a total proportion of at least 30 wt %, and a halide of terbium and/or gadolinium to a proportion of at least 5 wt %.
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: April 28, 2015
    Assignee: Koninklijke Philips N.V.
    Inventor: Klaus Schoeller
  • Patent number: 8937027
    Abstract: A glass composition and its use for producing glass tubes is provided. The glass tubes having the provided composition are particularly suitable for the outer tubes of fluorescent lamps in the case of which a phosphor layer is baked at temperatures of up to 700° C. The tubes composed of the glass of the provided composition have a lower tendency to deform or stick together when processed at high temperatures. To obtain the observed effects, the molar ratio of Na2O/(Na2O+K2O), inter alia, is greater than 0.4 and not more than 0.72.
    Type: Grant
    Filed: August 27, 2012
    Date of Patent: January 20, 2015
    Assignee: Schott AG
    Inventors: Erhard Dick, Joerg Hinrich Fechner
  • Patent number: 8912720
    Abstract: The present invention relates to a metal halogen lamp comprising, inside an outer casing (7), first (3) and second (5) arc tube members, which are electrically parallel-connected and are connected via conductive members (9) to a base part (11), each arc tube member having a first end (15), facing toward the top part (17) of the outer casing (7) opposite the base part (11), and a second end (19), facing toward the base part (11). The first arc tube member (3) is arranged closer to the top part (17) than the second arc tube member (5), and the second end (19) of the first arc tube member (3) and the first end (15) of the second arc tube member (5) adjoin an imaginary plane (P) defined substantially transversely to the center line (CL) of the outer casing (7), which center line extends from the top part (17) to the base part (11).
    Type: Grant
    Filed: September 23, 2010
    Date of Patent: December 16, 2014
    Assignee: Auralight International AB
    Inventors: Martin Fransson, Mikael Severinsson
  • 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
  • Patent number: 8742663
    Abstract: In various embodiments, a lamp base element for holding a transformer is provided. The lamp base element may include a transformer chamber which holds the transformer, wherein the transformer is held completely in the transformer chamber, and wherein the contact pins of the transformer are passed through a contact-making face of the transformer chamber, which contact-making face is opposite an opening face.
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: June 3, 2014
    Assignee: OSRAM Gesellschaft mit beschraenkter Haftung
    Inventor: Frank Sroka
  • Patent number: 8664845
    Abstract: A discharge tube includes a reflective film formed on an outer periphery of a cylindrical glass bulb by metal deposition. The reflective film is deposited in a range of 240° or more in the circumferential direction, and the range being larger in a center part than at each end in the axial direction. A stroboscopic device is equipped with this discharge tube.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: March 4, 2014
    Assignee: Panasonic Corporation
    Inventors: Yasushi Ogino, Hisashi Dejima, Toshiaki Murai
  • Publication number: 20130106281
    Abstract: In various embodiments, a high pressure discharge lamp is provided having a bulb, which surrounds a discharge volume, wherein a filler, which contains indium halide, quicksilver and inert gas from the group neon, argon, krypton, xenon, is accommodated in the discharge volume, wherein the filler simultaneously contains the halide of iodine and bromine, wherein the portion of InI amounts at most to 90 mol %, in respect of the total of all halides of In.
    Type: Application
    Filed: July 9, 2010
    Publication date: May 2, 2013
    Applicant: OSRAM AG
    Inventor: Andreas Genz
  • Patent number: 8367574
    Abstract: The alkaline earth metal aluminosilicate glass for light bulbs with molybdenum parts has a composition (in percent by weight on an oxide basis) of SiO2, 56-60; Al2O3, 17-18; B2O3, 0.5-2; MgO, 0.5-2; CaO, >14-15.5; SrO, 0-3; BaO, 6-8; ZrO2, 0-5; CeO2, 0-0.1 and TiO2, 0-0.5.
    Type: Grant
    Filed: August 24, 2010
    Date of Patent: February 5, 2013
    Assignee: Schott AG
    Inventors: Erhard Dick, Ingo Kipnik
  • Patent number: 8330371
    Abstract: A high-intensity discharge (HID) lamp comprising a discharge vessel including a first and a second end region and defining an arc chamber containing an arc generating medium, a cathode and an anode in the first and the second end regions of the discharge vessel, respectively, the cathode and the anode each comprising a terminal end disposed within the arc chamber and separated by an arc gap, and an electrically conductive starting aid configured to initiate a dielectric barrier discharge (DBD) with the anode at or after a voltage across the first and second electrodes reaches an open circuit value. A ballast may control power provided to the HID lamp.
    Type: Grant
    Filed: September 14, 2010
    Date of Patent: December 11, 2012
    Assignee: Osram Sylvania Inc.
    Inventors: Marijan Kostrun, Helmar Adler
  • Publication number: 20120306365
    Abstract: A polycrystalline body comprising a MgO/ZrO2-doped aluminum oxide in which alumina grains have an average size of at least 20 ?m and wherein the magnesium oxide is present in an amount of at least 250 ppm and the zirconium oxide is present in an amount of at least about 20 ppm of the weight of the ceramic body, and the magnesium and zirconium oxides are present at a molar ratio of about 1:2 to about 15:1.
    Type: Application
    Filed: June 6, 2011
    Publication date: December 6, 2012
    Inventors: Fangming Du, Thomas J. Boyle, Shuyi Qin, Zoltan Dobe
  • Patent number: 8324795
    Abstract: A fluorescent lamp may include a pair of hot cathode electrodes at both its ends, wherein a phosphor is formed in a laminated manner on the inner surface of a glass tube and a protection film is formed between the glass tube and the phosphor, wherein a residual impure gas in the lamp, including the amount occluded by the phosphor and the protection film, is set to 0.5% or less with the sealed rare gas partial pressure ratio, and wherein the following relationship is fulfilled: GHg=A×CL, A=0.0032-0.163 [mg/cc], wherein the amount of sealed mercury is GHg [mg], the lamp internal volume is CL [cc], and the coefficient is A [mg/cc].
    Type: Grant
    Filed: December 25, 2009
    Date of Patent: December 4, 2012
    Assignee: Osram AG
    Inventors: Keigo Iwase, Yukio Matsuda, Takashi Osawa, Takehiko Sakurai
  • Patent number: 8319432
    Abstract: A gas-discharge lamp (deuterium lamp) is provided having a lamp bulb (26) filled with gas, an anode (12) disposed inside the lamp bulb, a cathode (10) spaced from the anode inside the lamp bulb, a housing having a molded body (18), a rear housing wall (24), and a housing base made at least partially of electrically nonconductive material. The housing base includes a housing front (16), an intermediate housing wall (22), a cathode space (28), and a cathode shielding window (20). The cathode shielding window is insulated from the molded body and/or is made of an insulating material. The gas-discharge lamp is particularly applicable for analytical purposes.
    Type: Grant
    Filed: November 13, 2009
    Date of Patent: November 27, 2012
    Assignee: Heraeus Noblelight GmbH
    Inventors: Torsten Jenek, Karsten Ernesti, Rolf Malkmus
  • Patent number: 8314554
    Abstract: Various embodiments relate to an integrated gas discharge lamp including a lamp base, a gas discharge lamp burner and an ignition electronics, wherein the integrated gas discharge lamp includes an operation electronics for operating the gas discharge lamp burner, and the gas discharge lamp burner, the ignition electronics, and the operation electronics are unseparably coupled with each other.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: November 20, 2012
    Assignee: Osram AG
    Inventors: Knut Asmussen, Guenther Hirschmann, Lars Kolbe, Manfred Roehl, Bernhard Siessegger
  • 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
  • Patent number: 8288949
    Abstract: A fluorescent lamp having a protective polymeric sleeve to provide impact resistance and contain fragments if the lamp shatters. The sleeve comprises an inner layer of a UV-blocking polymeric material and an adjacent layer of a polymeric material, preferably polycarbonate. The inner layer is preferably a co-polymer comprised of a polycarbonate block and a block comprised of isophthalic acid, terephthalic acid, and resorcinol. The inner layer helps protect the rest of the sleeve from UV degradation.
    Type: Grant
    Filed: April 29, 2009
    Date of Patent: October 16, 2012
    Assignee: General Electric Company
    Inventor: James Michael Kostka
  • Patent number: 8283269
    Abstract: The borosilicate glass with improved solarization-resistance has a transmittance curve within an area bounded by respective curves defined by the corresponding equations ?=1.7·(??277) and ?=1.6·(??284) in a wavelength range of 283 nm to 325 nm. This glass has a composition, in wt. % based on oxide content, of: 55-82, SiO2; 10-20, B2O3; 1-10, Al2O3; 0-5, Li2O; 0-10, Na2O; 0-10, K2O; 0-10, ?M2O; 0-5, MgO; 0-10, CaO; 0-5, SrO; 0-15, BaO; 0-15, ?MO; 0-3, ZrO2; 0-5, ZnO; 0-2, CeO2; 0-3, WO3; 0-2, SnO2: 0-0.1, Fe2O3; 0.05-2, MoO3; 0-5, Bi2O3; 0-1, TiO2 and 0-5, oxides of selected rare earth and Group IVB to VIIIB elements. The transmittance is adjusted by varying the MoO3 content and if necessary the TiO2 and Bi2O3 content. The glass is especially suitable for use in a weathering apparatus.
    Type: Grant
    Filed: October 14, 2009
    Date of Patent: October 9, 2012
    Assignee: Schott AG
    Inventors: Joerg Hinrich Fechner, Franz Ott
  • Patent number: 8278233
    Abstract: A translucent polycrystalline sintered body is mainly composed of an alumina, is suitable for the manufacture of an arc tube for a high-intensity discharge lamp, and has an average grain diameter of 35 to 70 ?m, preferably 50 to 60 ?m. In a case where the sintered body is in a 0.5-mm-thick flat plate shape, the in-line transmittance of the sintered body is 30% or more, preferably 50% or more. In this case, the ratio between maximum and minimum in-line transmittance values is 2:1 to 1:1 in the visible region of 360 to 830 nm. The bending strength of the sintered body is 250 MPa or more, preferably 300 MPa or more.
    Type: Grant
    Filed: September 8, 2010
    Date of Patent: October 2, 2012
    Assignee: NGK Insulators, Ltd.
    Inventors: Sugio Miyazawa, Keiichiro Watanabe, Tsuneaki Ohashi, Hisanori Yamamoto
  • Patent number: 8264147
    Abstract: An electrical lead assembly for devices such as electrical lamps having a metallic foil for providing an electrically conducting path through a hermetic seal formed by pinch sealing a vitreous material. The metallic foil includes an oxidation-inhibiting coating of silica. In another aspect of the invention, methods of coating metallic foils with silica are disclosed. In yet another aspect of the present invention, an electrical lead assembly for lamps is provided wherein the metallic foil is extended to form an outer electrical lead for the lamp.
    Type: Grant
    Filed: October 11, 2006
    Date of Patent: September 11, 2012
    Assignee: Advanced Lighting Technologies, Inc.
    Inventor: Tryggvi Emilsson
  • Patent number: 8237365
    Abstract: In various embodiments, a high-pressure discharge lamp is provided. The high-pressure discharge lamp may include a discharge vessel which is accommodated in a tubular outer bulb, wherein a major part of the outer bulb is closely surrounded by a transparent sleeve composed of highly heat-resistant plastic.
    Type: Grant
    Filed: November 26, 2010
    Date of Patent: August 7, 2012
    Assignee: Osram AG
    Inventors: Joachim Arndt, Uwe Fidler, Ralph Hauschild
  • Patent number: 8222819
    Abstract: An opaque zone in the polycrystalline (PCA) discharge vessel of a high intensity discharge lamp may be made by creating residual pores in predetermined regions of the final-sintered discharge vessel. The control over the placement of the opaque zone is achieved by forming a carbonaceous residue in a specific region of the discharge vessel prior to final sintering. During sintering, the carbonaceous material causes residual porosity in the sintered PCA. The higher emissivity of the opaque PCA provides localized cooling in order to provide more control over the condensate behavior in the discharge vessel.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: July 17, 2012
    Assignee: Osram Sylvania Inc.
    Inventors: George C. Wei, Christopher A. Tarry, Roland Huettinger
  • Publication number: 20120176028
    Abstract: A plasma lamp apparatus. The apparatus has an arc tube structure having an inner region and an outer region in one or more embodiments. The arc tube structure has a first end comprising an associated first end diameter and a second end comprising a second end diameter according to a specific embodiment. The apparatus also has a center region provided between the first end and the second end in one or more embodiments. The center region has a center diameter, which is less than a first end diameter and/or a second end diameter.
    Type: Application
    Filed: January 11, 2011
    Publication date: July 12, 2012
    Applicant: Topanga Technologies, Inc.
    Inventor: Douglas A. Doughty
  • Patent number: 8203270
    Abstract: A start assisting light source is configured such that it can be mounted simply and reliably at a position capable of efficiently radiating UV-light for enhancing the starting performance of a high pressure discharge lamp to discharge chamber without being heated to a high temperature during lighting of the lamp and also adopted to a simple constitution of not increasing the manufacturing cost. A start assisting light source includes an airtight vessel filled with a rare gas and a pipe member that penetrates through the vessel is mounted to an electrode lead which protrudes from the end face of an electrode seal portion secured to a bottom hole of the concave reflector by inserting the electrode lead through the pipe member.
    Type: Grant
    Filed: April 6, 2010
    Date of Patent: June 19, 2012
    Assignee: Iwasaki Electric Co., Ltd.
    Inventors: Makoto Ohkahara, Yosuke Kano
  • Patent number: 8153540
    Abstract: The invention relates to the field of display screens, especially plasma screens. One subject of the invention is a glass composition which comprises the constituents below in the following weight proportions: SiO2 ?55-75%; Al2O3 ??1-5%; ZrO2 ??1-5%; Na2O ??1-5.5%; K2O ??1-9%, preferably 1-8.5%, and advantageously ??1-7.5%; CaO ??7-11%; and SrO ??3-9%, preferably 3.5-9%, and advantageously 4.5-9%, said composition having an Al2O3/ZrO2 weight ratio varying from 0.7 to 1.8, preferably from 0.7 to 1.2. The substrates obtained have a strain point at least equal to 570° C. and a coefficient of thermal expansion ?20-300 between 70 and 90×10?7/° C.
    Type: Grant
    Filed: January 11, 2008
    Date of Patent: April 10, 2012
    Assignee: Saint-Gobain Glass France
    Inventors: Sung-Min Kwon, Jerome Lalande
  • Patent number: 8110972
    Abstract: A composite High Intensity Discharge (“HID”) arc tube includes a discharge tube and two outwardly extending tubes. The discharge tube is a composite two-layer shell with an outer of fused quartz glass or Vycor quartz glass, and a layer of translucent polycrystalline alumina (“PCA”). The outwardly extending tubes are made of fused quartz glass or Vycor quartz glass, and a layer of polycrystalline alumina is applied at ends of the outwardly extending tubes close to an arc chamber. After the arc tube is sintered at a high temperature, the electrode is sealed by being separated into two segments. The first segment of the outward extending tube applied with PCA is sealed by glass solders, and the second segment of quartz glass is sealed by a molybdenum foil under pressure.
    Type: Grant
    Filed: October 22, 2010
    Date of Patent: February 7, 2012
    Assignee: Yancheng Haomai Lighting Science & Technology Co., Ltd.
    Inventor: Zonglie Chen
  • 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
  • Patent number: 8093815
    Abstract: A high-pressure discharge lamp and a reflector lamp including a discharge vessel enclosing a discharge space which is provided with an ionizable filling comprising one or more halides. The discharge vessel is substantially constituted by a ceramic material having first and second end portions. Current-supply conductors issue through each end portion to respective electrodes arranged in the discharge space so as to maintain a discharge. At least one of the current-supply conductors is formed as a rod including iridium. The rod is directly sealed to the ceramic material.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: January 10, 2012
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Josephus Christiaan Maria Hendricx, Peter Jozef Vrugt, Franciscus Johannes Gerardus Hakkens, Cornelis Johannes Maria Denissen
  • Publication number: 20110304266
    Abstract: The invention describes a high intensity gas-discharge lamp (1) comprising a discharge vessel (5, 5?) enclosing a fill gas in a discharge chamber (2) and comprising a pair of electrodes (3, 3?, 4, 4?) extending into the discharge chamber (2), and wherein the fill gas includes a halide composition comprising a halide of sodium and, optionally, scandium iodide to a total proportion of at least 30 wt %, and a halide of terbium and/or gadolinium to a proportion of at least 5 wt %.
    Type: Application
    Filed: February 17, 2010
    Publication date: December 15, 2011
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventor: Klaus Schoeller
  • Publication number: 20110291558
    Abstract: An opaque zone in the polycrystalline (PCA) discharge vessel of a high intensity discharge lamp may be made by creating residual pores in predetermined regions of the final-sintered discharge vessel. The control over the placement of the opaque zone is achieved by forming a carbonaceous residue in a specific region of the discharge vessel prior to final sintering. During sintering, the carbonaceous material causes residual porosity in the sintered PCA. The higher emissivity of the opaque PCA provides localized cooling in order to provide more control over the condensate behavior in the discharge vessel.
    Type: Application
    Filed: August 8, 2011
    Publication date: December 1, 2011
    Applicant: OSRAM SYLVANIA INC.
    Inventors: George C. Wei, Christopher A. Tarry, Roland Huettinger
  • Patent number: 8067322
    Abstract: A glass composition for lamps includes the following by weight percent: SiO2: 60-75 wt %; CeO2+Ce2O3: 0.01-5.2 wt %; SnO+SnO2: 0.01-5.2 wt %; Al2O3: 0.5-6 wt %; B2O3: 0-5 wt %; Li2O+Na2O+K2O: 13-20 wt %; MgO: 0.5-5 wt %; CaO: 1-10 wt %; SrO: 0-10 wt %; BaO: 0-10 wt %; ZnO: 0-10 wt %; Fe2O3+FeO: 0-0.2 wt %; and TiO2: 0-1 wt %. The glass composition for lamps that contains no lead or antimony achieves high ultraviolet screening capacity, ensuring fewer occurrences of initial coloring and ultraviolet ray caused coloring of glass.
    Type: Grant
    Filed: July 7, 2006
    Date of Patent: November 29, 2011
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventors: Ryousuke Sawa, Junko Abe, Tomoko Atagi, Masanobu Itou, Tomoko Akai, Masaru Yamashita
  • Patent number: 8040061
    Abstract: An opaque zone in the polycrystalline (PCA) discharge vessel of a high intensity discharge lamp may be made by creating residual pores in predetermined regions of the final-sintered discharge vessel. The control over the placement of the opaque zone is achieved by forming a carbonaceous residue in a specific region of the discharge vessel prior to final sintering. During sintering, the carbonaceous material causes residual porosity in the sintered PCA. The higher emissivity of the opaque PCA provides localized cooling in order to provide more control over the condensate behavior in the discharge vessel.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: October 18, 2011
    Assignee: Osram Sylvania Inc.
    Inventors: George C. Wei, Christopher A. Tarry, Roland Huettinger
  • Patent number: 8040026
    Abstract: An illumination lamp is provided. The illumination lamp includes a hollow pillar tube being light-transmissive, at least one inner light tube accommodated in the hollow pillar tube, and an electrode set disposed at one distal end of the hollow pillar tube and electrically connected to the inner light tube in the hollow pillar tube.
    Type: Grant
    Filed: June 24, 2009
    Date of Patent: October 18, 2011
    Assignee: Candle Laboratory Co., Ltd
    Inventors: Wei-Ping Shao, Ping-Sung Lu, Shou-Yi Hung
  • Patent number: 8040065
    Abstract: An electric lamp is described, which has a quartz glass lamp vessel (10) accommodating an electric element (3, 4). The lamp vessel locally has a light-absorbing, non-reflective coating (11, 12). The coating mainly consists of iron, iron oxide, silicon, and silicon dioxide, the ratio of the weight percentages of iron (compounds) and silicon (compounds) being in the range of 0.17<=iron (compounds)/silicon (compounds)<-12, and the ratio of the weight percentages of silicon and silicon dioxide being in the range of 0.5<=silicon/silicon dioxide<=50.
    Type: Grant
    Filed: November 6, 2007
    Date of Patent: October 18, 2011
    Assignee: Koninklijke Philips Electronics N.V.
    Inventor: Heinz Josef Schloemer
  • Publication number: 20110248630
    Abstract: The present disclosure relates to a short arc metal halide lamp without outer jacket, whose arc tube has a specified aspect ratio and chemical filling, characterised in that it delivers a low colour temperature and very high colour rendering index, which are maintained during dimming.
    Type: Application
    Filed: April 8, 2011
    Publication date: October 13, 2011
    Applicant: Flowil International Lighting (Holding) BV
    Inventors: James Hooker, Lode Derhaeg
  • Publication number: 20110205529
    Abstract: A cell for a vacuum ultraviolet plasma light source, the cell having a closed sapphire tube containing at least one noble gas. Such a cell does not have a metal housing, metal-to-metal seals, or any other metal flanges or components, except for the electrodes (in some embodiments). In this manner, the cell is kept to a relatively small size, and exhibits a more uniform heating of the gas and cell than can be readily achieved with a hybridized metal/window cell design. These designs generally result in higher plasma temperatures (a brighter light source), shorter wavelength output, and lower optical noise due to fewer gas convection currents created between the hotter plasma regions and surrounding colder gases. These cells provide a greater amount of output with wavelengths in the vacuum ultraviolet range than do quartz or fused silica cells. These cells also produce continuous spectral emission well into the infrared range, making them a broadband light source.
    Type: Application
    Filed: February 17, 2011
    Publication date: August 25, 2011
    Applicant: KLA-TENCOR CORPORATION
    Inventors: Kenneth P. Gross, Yung-Ho Chuang, John Fielden
  • Patent number: 8004196
    Abstract: The invention relates to aluminoborosilicate glasses as a glass casing body of a lighting means, especially for background illumination, which glass composition is equally suitable for use in lighting means with external contacting as well as for lighting means with internal contacting.
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: August 23, 2011
    Assignee: Schott AG
    Inventors: Jörg Fechner, Franz Ott, Christof Kass
  • Patent number: 7977885
    Abstract: In certain embodiments, a lamp is provided with an arc envelope including a ceramic, an end member including a material different from the ceramic, and a compliant seal disposed between the end member and the arc envelope. The compliant seal includes a plurality of layers having different thermal expansion characteristics in an order of gradual change between the arc envelope and the end member.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: July 12, 2011
    Assignee: General Electric Company
    Inventors: Bernard Bewlay, Bruce Knudsen, Mohamed Rahmane, James Vartuli, James Brewer
  • Patent number: 7973481
    Abstract: An insulating material high both in thermal conductivity and light reflectance, and a submount high in heat radiatability for mounting an LED element thereon, capable of raising a light utilization factor and quickly radiating heat generated from the element. For example, used as a substrate material of a submount is a nitride sintered body having a reflectance of light in the wavelength region of from 350 nm to 800 nm of 50% or more and a reflectance of light with a wavelength of 700 nm of 60% or more, obtained by sintering a preform consisting of a composition containing 100 parts by mass of aluminum nitride powder and 0.5 to 10 parts by mass of a compound containing an alkaline earth metal such as 3CaO×Al2O3 in an inert atmosphere containing a specific quantity of carbon vapor, or by burning a coat of a nitride paste applied on a base substrate having a heat resistance at a predetermined temperature.
    Type: Grant
    Filed: April 26, 2010
    Date of Patent: July 5, 2011
    Assignee: Tokuyama Corporation
    Inventors: Yasuyuki Yamamoto, Yukihiro Kanechika, Masakatsu Maeda
  • Patent number: 7884550
    Abstract: A transparent sintered yttrium aluminum garnet ceramic material formed from a solid-state reaction of a mixture of yttrium oxide powder and aluminum oxide powder during sintering. The ceramic material preferably has an in-line transmission of greater than 75% so it may used to fabricate arc tubes for high intensity discharge lamps used in automotive headlamps.
    Type: Grant
    Filed: November 7, 2006
    Date of Patent: February 8, 2011
    Assignee: General Electric Company
    Inventors: Gregory M. Gratson, James A. Brewer, Venkat S. Venkataramani, Mohamed Rahmane, Svetlana Selezneva, Sairam Sundaram
  • Patent number: 7876053
    Abstract: An insulating material high both in thermal conductivity and light reflectance, and a submount high in heat radiatability for mounting an LED element thereon, capable of raising a light utilization factor and quickly radiating heat generated from the element. For example, used as a substrate material of a submount is a nitride sintered body having a reflectance of light in the wavelength region of from 350 nm to 800 nm of 50% or more and a reflectance of light with a wavelength of 700 nm of 60% or more, obtained by sintering a preform consisting of a composition containing 100 parts by mass of aluminum nitride powder and 0.5 to 10 parts by mass of a compound containing an alkaline earth metal such as 3CaO×Al2O3 in an inert atmosphere containing a specific quantity of carbon vapor, or by burning a coat of a nitride paste applied on a base substrate having a heat resistance at a predetermined temperature.
    Type: Grant
    Filed: June 20, 2005
    Date of Patent: January 25, 2011
    Assignee: Tokuyama Corporation
    Inventors: Yasuyuki Yamamoto, Yukihiro Kanechika, Masakatsu Maeda
  • Patent number: 7852006
    Abstract: A lamp comprising an arc envelope and a molybdenum-rhenium end structure coupled to the arc envelope.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: December 14, 2010
    Assignee: General Electric Company
    Inventors: Bernard Patrick Bewlay, Bruce Alan Knudsen, Mohamed Rahmane, James Anthony Brewer, James Scott Vartuli, Alan George Chalmers
  • Patent number: 7800309
    Abstract: A low-pressure mercury vapor discharge lamp has a lamp envelope enclosing, in a gastight manner, a discharge space provided with a filling of mercury and a rare gas. The lamp envelope includes electrodes for maintaining a discharge in the discharge space. The lamp envelope transmits UV-light and is made of a black glass component. The composition of the black glass component is free of PbO and comprises, expressed as a percentage by weight, the following constituents: 65-70% by weight of SiO2, 1.4-2.2% by weight of Li2O, 1.5-2.5% by weight of Na2O, 11-13% by weight of K2O, 1.8-2.6% by weight of MgO, 2.5-5% by weight of CaO, 2-3.5% by weight of SrO, 8-9.5% by weight of BaO, 0.2-0.4% by weight of CoO, and 1.7-3.25% by weight of NiO.
    Type: Grant
    Filed: November 21, 2005
    Date of Patent: September 21, 2010
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Simon Krijnen, Theodorus Herman Ketelaar, Olaf Mastenbroek, Roland Blasig
  • Publication number: 20100213867
    Abstract: A high-pressure discharge lamp may include a discharge vessel, which contains: electrodes, at least one noble gas as a start gas, at least one element selected from the group consisting of Al, In, Mg, Tl, Hg, and Zn for arc transfer and discharge vessel wall heating, and at least one rare earth halide for the generation of radiation, which is configured such that the generated light is dominated by molecular radiation, wherein at least one member of a first group of rare earth halides is used together with at least one member of a second group of rare earth halides, the first group having the property that the color distance decreases with a power increase when the power of the lamp is increased in a predetermined power interval, and the second group having the property that the color distance increases with a power increase when the power of the lamp is increased in this predetermined power interval.
    Type: Application
    Filed: July 16, 2007
    Publication date: August 26, 2010
    Applicant: OSRAM GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG
    Inventors: Marko Kaening, Bernhard Schalk, Steffen Franke, Ralf-Peter Methling
  • Patent number: 7741780
    Abstract: A sealing composition for ceramic discharge vessels is described. The sealing composition contains about 20 to about 40 mole percent MgO, about 20 to about 45 mole percent Y2O3, and about 20 to about 60 mole percent Al2O3 and has a melting point of less than about 1800° C., and preferably from about 1700° C. to about 1800° C. The sealing composition may be used for making ceramic-to-ceramic or ceramic-to-metal seals in ceramic discharge vessels.
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: June 22, 2010
    Assignee: Osram Sylvania Inc.
    Inventor: Arlene Hecker
  • Patent number: 7741237
    Abstract: There is described a sealing composition for sealing aluminum nitride and aluminum oxynitride ceramics comprising: a mixture of SiO2, at least one other metal oxide, and a silicon additive comprising at least one of silicon metal or a silicide. The silicon additive acts to suppress the formation of nitrogen bubbles during the sealing of articles comprised of aluminum nitride or aluminum oxynitride ceramics, e.g., as in the case of a ceramic discharge vessel for a high intensity discharge lamp.
    Type: Grant
    Filed: January 20, 2010
    Date of Patent: June 22, 2010
    Assignee: Osram Sylvania Inc.
    Inventors: Yi Zheng, Richard C. Marlor, George C. Wei
  • Patent number: 7710038
    Abstract: A ceramic discharge vessel is described that is provided a feedthrough comprised of a molybdenum alloy containing at least 75 weight percent molybdenum and greater than 5 weight percent of nickel and at least one other alloying metal selected from copper and iron, wherein the weight ratio of the amount of nickel to the combined amount of copper and iron, Ni:(Fe,Cu), in the alloy is in the range of 1:1 to 9:1. The thermal expansion coefficient of the alloy is sufficiently matched to that of the ceramic so that the feedthrough may be sealed to the discharge vessel without causing cracking. Preferably, the feedthrough is directly sealed to the ceramic discharge vessel without the use of an intermediate frit material.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: May 4, 2010
    Assignee: OSRAM Sylvania Inc.
    Inventor: Thomas J. Patrician
  • Patent number: 7678725
    Abstract: A polycrystalline body includes aluminum oxide, magnesium oxide, zirconium oxide, and lutetium oxide. The lutetium oxide is present in an amount of at least 10 ppm of the weight of the ceramic body, and the magnesium and zirconium oxides are present at a molar ratio of from 0.5:1 to 3:1.
    Type: Grant
    Filed: May 14, 2007
    Date of Patent: March 16, 2010
    Assignee: General Electric Company
    Inventors: Karthik Sivaraman, Shuyi Qin, Ming Gao
  • Publication number: 20100045164
    Abstract: The invention concerns a glass composition for a glass body of an illuminating means with external electrodes, wherein the quotient of the loss angle (tan ?[10?4]) and the dielectric constant (??) amounts to tan ?[10?4]/??<5, i.e., tan ?/??<5×10?4). In this way, the total power loss of the illuminating means with external electrodes can be minimized in a targeted manner by means of the glass properties.
    Type: Application
    Filed: December 29, 2005
    Publication date: February 25, 2010
    Inventors: Joerg Fechner, Martin Letz, Steffen Reichel, Franz Ott, Brigitte Hueber