Patents Assigned to OSRAM
  • Patent number: 6281630
    Abstract: A lamp capsule for use in a vehicle headlamp includes a lamp envelope having a tubular portion. First and second spaced-apart filaments are mounted in the lamp envelope for emitting light when energized by electrical energy. The lamp capsule further includes one or more light-attenuating axial stripes on the lamp envelope. The axial stripes are positioned on the lamp envelope for blocking light emitted by the first filament and reflected by the second filament. The lamp capsule may further include light-attenuating rings at or near opposite ends of the lamp envelope for defining upper and lower boundaries of a clear region of the lamp envelope. A filament support structure may include support leads located in the plane of the filaments for limiting light blockage and stray reflections.
    Type: Grant
    Filed: April 23, 1999
    Date of Patent: August 28, 2001
    Assignee: Osram Sylvania, Inc.
    Inventors: George J. English, Michael D. Tucker
  • Patent number: 6277301
    Abstract: The wavelength-converting casting composition is based on a transparent epoxy casting resin with a luminous substance admixed. The composition is used in an electroluminescent component having a body that emits ultraviolet, blue or green light. An inorganic luminous substance pigment powder with luminous substance pigments is dispersed in the transparent epoxy casting resin. The luminous substance is a phosphorous group of the general formula A3B5X12:M, and the luminous substance pigments have particle sizes ≦20 &mgr;m and a mean grain diameter d50≦5 &mgr;m.
    Type: Grant
    Filed: March 28, 2000
    Date of Patent: August 21, 2001
    Assignee: Osram Opto Semiconductor, GmbH & Co. oHG
    Inventors: Klaus Höhn, Alexandra Debray, Peter Schlotter, Ralf Schmidt, Jürgen Schneider
  • Patent number: 6270235
    Abstract: A first lamp base assembly is provided which includes two separate base components. The first base component is attachable to a lamp via a lamp retainer and to the second base component. The second base component is attachable to the first base component and to a connector. The first component includes a retainer clamp to the lamp. The retainer includes two parallel folded back walls. The retainer is then coupled to outward facing spring arms that slip behind the parallel walls. The retainer and spring arms are adjusted with in plane shifts, including rotations with respect to each other thereby providing final lamp adjustments. The walls and the spring arms are then welded with out pressing directly on the lamp. The spring arms may be further formed with heat conduction resistant slots. A lamp including the foregoing lamp base assemblies is also provided.
    Type: Grant
    Filed: May 14, 1999
    Date of Patent: August 7, 2001
    Assignee: Osram Sylvania Inc.
    Inventor: Charles M. Coushaine
  • Patent number: 6271622
    Abstract: A lamp capsule for use in a vehicle headlamp includes a lamp envelope having a tubular portion. First and second spaced-apart filaments are mounted in the lamp envelope for emitting light when energized by electrical energy. The lamp capsule further includes one or more light-attenuating axial stripes on the lamp envelope. The axial stripes are positioned on the lamp envelope for blocking light emitted by the first filament and reflected by the second filament. The lamp capsule may further include light-attenuating rings at or near opposite ends of the lamp envelope for defining upper and lower boundaries of a clear region of the lamp envelope. A filament support structure may include support leads located in the plane of the filaments for limiting light blockage and stray reflections.
    Type: Grant
    Filed: April 23, 1999
    Date of Patent: August 7, 2001
    Assignee: Osram Sylvania Inc.
    Inventors: Charles M. Coushaine, Michael D. Tucker, George J. English
  • Patent number: 6268696
    Abstract: A long-life, environmentally disposable high pressure sodium lamp comprising: an arc tube capable of withstanding internal wall temperatures of 1250 to 1300° C. and having electrodes sealed therein and being designed for operation at a given wattage; a discharge space within the arc tube and an arc generating and sustaining medium within the discharge space, the medium being mercury-free and containing sodium in an amount of about 0.02 mg to 0.06 mg/watt of designed operation, and xenon at a pressure of 100 to 200 Torr; mounting means supporting the arc tube within a glass outer envelope, the glass outer envelope being lead-free and arsenic-free; and an electrically conductive base closing the outer envelope and containing lead-in wires affixed to the electrodes, the lead-in wires being attached to the base by welding.
    Type: Grant
    Filed: February 3, 1999
    Date of Patent: July 31, 2001
    Assignee: Osram Sylvania Inc.
    Inventors: Robert B. Dolan, John L. Plumb, Elliot F. Wyner
  • Patent number: 6268698
    Abstract: An hermetically sealed arc tube which comprises a hollow body having oppositely disposed ends aligned along a longitudinal axis and containing an arc generating and sustaining medium therein. An electrode is positioned in each end of the hollow body and an ionization zone is positioned adjacent to one of the ends and is a part thereof. The ionization zone is exposed to an atmosphere different than the arc generating and sustaining medium.
    Type: Grant
    Filed: December 4, 1998
    Date of Patent: July 31, 2001
    Assignee: Osram Sylvania Inc.
    Inventor: John A. Scholz
  • Patent number: 6255763
    Abstract: An insulating member for a base for a light emitting bulb has an electrically insulating body formed from a thermoplastic plastic material and having a first surface, a second surface spaced therefrom, and a sidewall connecting the first and second surfaces. The sidewall is formed to flexibly receive and hold an electrically conductive element, such as the threaded portion of a screw base.
    Type: Grant
    Filed: October 12, 1999
    Date of Patent: July 3, 2001
    Assignee: Osram Sylvania Inc.
    Inventor: John O. Wright
  • Patent number: 6254252
    Abstract: A first lamp base assembly is provided which includes two separate base components. The first base component is attachable to a lamp via a lamp retainer and to the second base component. The second base component is attachable to the first base component and to a connector. The second base component may be a straight base component or an angled base component. Since either one of the second base components may be attached to the first base component, an adjustable lamp base assembly is provided which may be assembled as a straight or an angled lamp base. A second lamp base assembly is provided which includes a base which is attachable to a connector and one of various differently configured lamp attachment members, such attachment members being adapted to be attachable to a lamp via a lamp retainer. Since various lamp attachment members may be attached to the base, an adjustable lamp base assembly is provided which may be adapted for use with different lamps.
    Type: Grant
    Filed: May 14, 1999
    Date of Patent: July 3, 2001
    Assignee: Osram Sylvania Inc.
    Inventors: Charles M. Coushaine, James P. Szep
  • Patent number: 6250963
    Abstract: A connector assembly, and method of fabricating such connector assembly, is provided. The connector assembly includes a cable/insulator/contact sub-assembly which extends into a connector shell and is attached thereto in such a manner as to seal the interface between the connector shell and the cable where the cable is inserted therein, and to mechanically attach the connector shell to the insulator. A connector shell useful in such connector assembly.
    Type: Grant
    Filed: August 30, 1999
    Date of Patent: June 26, 2001
    Assignee: Osram Sylvania Inc.
    Inventor: John O. Wright
  • Patent number: 6250970
    Abstract: An angled lamp socket includes a body and a housing. The body contains therein opposing lamp retaining clips and a plurality of IDC contacts. The housing contains a plurality of holes to receive wire leads. The housing also contains a housing disc. The bottom portion of the IDC contacts are connected electrically to the wire leads and the top portion of the IDC contacts are connected to the lamp. When a lamp is inserted into the socket body, the horizontal axis of the lamp will extend at an angle in relation to the wire leads. In a preferred embodiment, such an angle is 90° thereby providing a right angle lamp socket.
    Type: Grant
    Filed: April 13, 2000
    Date of Patent: June 26, 2001
    Assignee: Osram Sylvania Inc.
    Inventors: Edward H. Key, Steven M. Boyd, Ronald E. Thomas, Richard P. Walker
  • Patent number: 6250943
    Abstract: A connector assembly is provided which includes a connector housing, at least one resilient lever pivotally attached relative to the connector housing, and a slider slidably attached to each lever. The connector housing is slidably engagable with and disengagable from a mating connector assembly in an engaged and disengaged mode, respectively. Each lever engages and disengages the mating connector assembly in such engaged and disengaged mode. The slider is movable to a first position to prevent disengagement of the lever from the mating connector assembly in a locked mode, and to a second position to allow disengaging the lever from the mating connector assembly in an unlocked mode.
    Type: Grant
    Filed: September 20, 1999
    Date of Patent: June 26, 2001
    Assignee: Osram Sylvania Inc.
    Inventors: Anthony E. Castle, David T. Humphrey
  • Patent number: 6249081
    Abstract: A cathode ray tube face panel having an upstanding wall therearound with a plurality of article supporting studs retained therein, said studs being formed from an alloy having a chromium content of from about 10 to 16% by weight and the balance iron.
    Type: Grant
    Filed: June 22, 1999
    Date of Patent: June 19, 2001
    Assignee: Osram Sylvania Inc.
    Inventor: Juan J. Rossi
  • Patent number: 6249077
    Abstract: A mounting member for supporting a shroud, and an arc tube located within such shroud, in an arc discharge lamp is provided. The mounting member includes at least two support clips welded to at least one support rod on the same side of the support rod. A bubble-in-the-press arc lamp is provided having at least one press seal that includes opposite walls. A bubble portion is formed in one wall, and the other wall includes a protrusion. The bubble portion extends towards one wall and the protrusion extends towards the other wall to hold a support clip of a supporting member therebetween. An electric lamp assembly is provided that includes the mounting means and/or the bubble-in-the-press arc tube of the present invention.
    Type: Grant
    Filed: March 2, 1999
    Date of Patent: June 19, 2001
    Assignee: Osram Sylvania Inc.
    Inventors: Randall D. Brown, Joseph C. Swadel, Edward H. Nortrup, Simone P. Bazin
  • Patent number: 6245259
    Abstract: The wavelength-converting casting composition is based on a transparent epoxy casting resin with a luminous substance admixed. The composition is used in an electroluminescent component having a body that emits ultraviolet, blue or green light. An inorganic luminous substance pigment powder with luminous substance pigments is dispersed in the transparent epoxy casting resin. The luminous substance is a powder of Ce-doped phosphors and the luminous substance pigments have particle sizes ≦20 &mgr;m and a mean grain diameter d50≦5 &mgr;m.
    Type: Grant
    Filed: August 29, 2000
    Date of Patent: June 12, 2001
    Assignee: Osram Opto Semiconductors, GmbH & Co. OHG
    Inventors: Klaus Höhn, Alexandra Debray, Peter Schlotter, Ralf Schmidt, Jürgen Schneider
  • Patent number: 6245260
    Abstract: A Li2SO4'Na2SO4 mixed flux for use in the synthesis of yttrium tantalate x-ray phosphors has been invented. The phosphors made with the mixed flux exhibit a dramatic increase XOF brightness, decreased persistence, and a reduced particle size.
    Type: Grant
    Filed: August 27, 1999
    Date of Patent: June 12, 2001
    Assignee: Osram Sylvania Inc.
    Inventor: Gregory A. Marking
  • Publication number: 20010002049
    Abstract: The light-radiating semiconductor component has a radiation-emitting semiconductor body and a luminescence conversion element. The semiconductor body emits radiation in the ultraviolet, blue and/or green spectral region and the luminescence conversion element converts a portion of the radiation into radiation of a longer wavelength. This makes it possible to produce light-emitting diodes which radiate polychromatic light, in particular white light, with only a single light-emitting semiconductor body. A particularly preferred luminescence conversion dye is YAG:Ce.
    Type: Application
    Filed: December 7, 2000
    Publication date: May 31, 2001
    Applicant: OSRAM OPTO SEMICONDUCTORS GmbH & Co., OHG
    Inventors: Ulrike Reeh, Klaus Hohn, Norbert Stath, Gunter Waitl, Peter Schlotter, Jurgen Schneider, Ralf Schmidt
  • Patent number: 6236155
    Abstract: A second anode button for a cathode ray tube comprises a ferritic stainless steel alloy having a chromium content of about 10 to about 20% by weight and that is nickel-free.
    Type: Grant
    Filed: June 2, 1999
    Date of Patent: May 22, 2001
    Assignee: Osram Sylvania Inc.
    Inventor: Juan J. Rossi
  • Patent number: 6229271
    Abstract: A line dimmer has a limited maximum firing angle to limit a total harmonic distortion within a powering signal. A dimming ballast generates a pulse width modulated signal based on a firing angle of the powering signal, generates a dimming command signal based on the pulse width modulated signal, and dims a lamp based on the dimming command signal. The maximum firing angle may be limited to 30 degrees, 25 degrees, or 20 degrees, for example, to limit a resulting total harmonic distortion.
    Type: Grant
    Filed: February 24, 2000
    Date of Patent: May 8, 2001
    Assignee: Osram Sylvania Inc.
    Inventor: Guang Liu
  • Patent number: 6229269
    Abstract: A method of and system for operating a high intensity discharge lamp having an electronic ballast system is provided wherein the power supplied to the discharge lamp is increased by bending the arc in the arc tube in order to increase the length of the arc. Bending may be effected by injecting acoustic frequencies in the power supplied to the discharge lamp.
    Type: Grant
    Filed: May 21, 1999
    Date of Patent: May 8, 2001
    Assignee: Osram Sylvania Inc.
    Inventor: Joseph A. Olsen
  • Publication number: 20010000622
    Abstract: The light-radiating semiconductor component has a radiation-emitting semiconductor body and a luminescence conversion element. The semiconductor body emits radiation in the ultraviolet, blue and/or green spectral region and the luminescence conversion element converts a portion of the radiation into radiation of a longer wavelength. This makes it possible to produce light-emitting diodes which radiate polychromatic light, in particular white light, with only a single light-emitting semiconductor body. A particularly preferred luminescence conversion dye is YAG:Ce.
    Type: Application
    Filed: December 6, 2000
    Publication date: May 3, 2001
    Applicant: OSRAM OPTO SEMICONDUCTORS GmbH & Co., OHG
    Inventors: Ulrike Reeh, Klaus Hohn, Norbert Stath, Gunter Waitl, Peter Schlotter, Jurgen Schneider, Ralf Schmidt