Patents Assigned to OSRAM
  • Publication number: 20060172506
    Abstract: In a process for producing a semiconductor chip, a functional semiconductor layer sequence (2) is grown epitaxially on a growth substrate (1). Then, a separating zone (4), which lies parallel to a main surface (8) of the growth substrate (1), is formed in the growth substrate (1) by ion implantation, the ion implantation taking place through the functional semiconductor layer sequence (2). Then, a handle substrate (6) is applied to the functional semiconductor layer sequence (2), and a part of the growth substrate (1) which is remote from the handle substrate (6) as seen from the separating zone (4), is detached along the separating zone (4).
    Type: Application
    Filed: December 20, 2005
    Publication date: August 3, 2006
    Applicant: Osram Opto Semiconductors GmbH
    Inventors: Georg Bruderl, Volker Harle
  • Publication number: 20060170361
    Abstract: A single-ended arc discharge vessel for a metal halide lamp includes a U-shaped arc discharge chamber that has two juxtaposed subchambers with a divider wall therebetween and a passageway around the divider wall that connects the two subchambers to each other. The vessel has two parallel electrodes in a same end of the vessel that is opposite the passageway. Each of the electrodes extends into a respective one of the two subchambers a distance less than a height of the divider wall so that the arc discharge between the electrodes is U-shaped. This arrangement moves the vessel cold spot away from the electrodes to permit higher operating temperatures and increases arc gap length for a given vessel size to permit a higher lamp voltage.
    Type: Application
    Filed: January 31, 2005
    Publication date: August 3, 2006
    Applicant: OSRAM SYLVANIA INC.
    Inventors: Lori Brock, Thomas Dreeben
  • Publication number: 20060170358
    Abstract: A tungsten alloy feedthrough for ceramic discharge vessels is used to form a hermetic seal with the ceramic body of the discharge vessel. The tungsten alloy comprises tungsten alloyed with a metal selected from titanium, vanadium or a combination thereof. The alloy may be formulated to have a coefficient of thermal expansion that closely matches that of the ceramic to prevent cracking. Preferably, the tungsten alloy contains from about 10 to about 35 wt. % of a metal selected from Ti, V, or a combination thereof.
    Type: Application
    Filed: January 31, 2005
    Publication date: August 3, 2006
    Applicant: OSRAM SYLVANIA INC.
    Inventor: John Selverian
  • Patent number: 7083099
    Abstract: An optically pumped vertically emitting semiconductor laser having a highly reflective reflector layer (10), and a radiation-emitting active layer sequence (14) arranged on the reflector layer, in which, during operation, the reflector layer (10), together with an external mirror (20), forms a laser resonator. A heat sink (12), transparent to the emitted radiations is arranged within the laser resonator (10, 20) and in thermal contact with the active layer sequence (14), said heat sink being formed from a material having a higher thermal conductivity than the materials of the active layer sequence (14).
    Type: Grant
    Filed: September 26, 2002
    Date of Patent: August 1, 2006
    Assignee: Osram Opto Semiconductors GmbH
    Inventor: Wolfgang Schmid
  • Patent number: 7084579
    Abstract: An electronic ballast (100) for powering at least one gas discharge lamp (30) at two light levels includes a full-wave rectifier circuit (120) and a detector circuit (200). Detector circuit (200) provides an output voltage that is dependent on the states of two on-off switches (S1,S2), but that is substantially unaffected by typical X capacitances that are present between the hot and neutral input connections of the ballast.
    Type: Grant
    Filed: December 13, 2004
    Date of Patent: August 1, 2006
    Assignee: OSRAM Sylvania Inc.
    Inventors: John G. Konopka, Naveen Yadlapalli, Shashank Bakre, Himamshu Prasad
  • Publication number: 20060163591
    Abstract: An organic light-emitting device (OLED) comprising an organic active region which emits electromagnetic radiation, a conversion material which converts a portion of the radiation into light of a certain spectral range, and a filter material which transmits said light.
    Type: Application
    Filed: November 30, 2005
    Publication date: July 27, 2006
    Applicant: Osram Opto Semiconductors GmbH
    Inventor: Karsten Diekmann
  • Publication number: 20060164004
    Abstract: A light source, comprising at least one LED for emitting primary radiation, and at least one phosphor for converting the primary radiation into secondary radiation. The secondary radiation has a decay time at room temperature of at least 0.1 seconds before the luminescence intensity of the secondary radiation is no longer perceptible to the human eye.
    Type: Application
    Filed: March 12, 2004
    Publication date: July 27, 2006
    Applicant: Osram Opto Semiconductors GmbH
    Inventor: Wolfgang Rossner
  • Publication number: 20060157828
    Abstract: The invention describes a leadframe-based housing for a surface-mountable component, particularly a radiation-emitting component. Said leadframe-based housing comprises electrical connector strips and at least one chip mounting area, and provided according to the invention in one of the connector strips is an injection aperture that enables a leadframe-based housing to be produced with a very small thickness in an injection molding process. A method for producing such housings is further specified.
    Type: Application
    Filed: September 5, 2003
    Publication date: July 20, 2006
    Applicant: OSRAM OPTO SEMICONDUCTOR GMBH
    Inventor: Jorg Sorg
  • Patent number: 7078726
    Abstract: In one embodiment of the invention, a first absorbing layer is on a substrate and/or a second absorbing layer is on a heat-activated adhesive. If the IR source that supplies IR radiation is present on the substrate-side, then the absorption percentage of the substrate is less than the absorption percentage of the first absorbing layer if present and less than the absorption percentage of the second absorbing layer if present. If the IR source that supplies IR radiation is present on the “encapsulation cover”-side, then the absorption percentage of the encapsulation cover is less than the absorption percentage of the first absorbing layer if present and less than an absorption percentage of the second absorbing layer if present. The substrate and the encapsulation cover have a low thermal conductivity.
    Type: Grant
    Filed: September 9, 2004
    Date of Patent: July 18, 2006
    Assignee: Osram Opto Semiconductors GmbH
    Inventors: Karl Pichler, Kyle D. Frischknecht
  • Patent number: 7078253
    Abstract: The invention describes a radiation-emmitting semiconductor component with luminescence conversion element (7), in the case of which the semiconductor body (3) is arranged in a recess in the basic body (1). Within the recess, there is shaped around the semiconductor body a bowl-like region which contains the luminescence conversion element (7) and envelopes the semiconductor body (3). The bowl-like region is formed as a depression within the recess or as an annular enclosure (6) on the base of the recess.
    Type: Grant
    Filed: August 13, 2004
    Date of Patent: July 18, 2006
    Assignee: Osram Opto Semiconductors GmbH
    Inventors: Herbert Brunner, Alexandra Debray, Harald Jäger, Günther Waitl
  • Patent number: 7078732
    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: Grant
    Filed: December 28, 1998
    Date of Patent: July 18, 2006
    Assignee: Osram GmbH
    Inventors: Ulrike Reeh, Klaus Höhn, Norbert Stath, Günter Waitl, Peter Schlotter, Jürgen Schneider, Ralf Schmidt
  • Patent number: 7075224
    Abstract: An LED light source (10) comprises a housing (12) having a base (14) with a hollow core (16) projecting therefrom. The core (16) is substantially conical. A central heat conductor (17) is centrally located within the hollow core (16) and is formed from solid copper. A first printed circuit board (18) is connected to one end of the central heat conductor and a second printed circuit board (20) is fitted to a second, opposite end of the central heat conductor (17). The second printed circuit board (20) has at least one LED (24) operatively fixed thereto. A plurality of electrical conductors (26) has proximal ends (28) contacting electrical traces formed on the second printed circuit board (20) and distal ends (30) contacting electrical traces on the first printed circuit board (18). Each of the electrical conductors (26) has a tension reliever (27) formed therein which axially compresses during assembly.
    Type: Grant
    Filed: April 22, 2004
    Date of Patent: July 11, 2006
    Assignee: OSRAM Sylvania Inc.
    Inventor: Charles M. Coushaine
  • Patent number: 7075124
    Abstract: A radiation-sensitive semiconductor body which has at least one radiation-absorbent active area (2) between at least two contact layers (6, 7) and which receives electromagnetic radiation in a wavelength range between ?1 and ?2 where ?2>?1. A filter layer (5) is arranged between the active area (2) and a radiation input surface (9). The active area (2) detects electromagnetic radiation at a wavelength below ?2. The filter layer (5) absorbs electromagnetic radiation at a wavelength below ?1, and passes electromagnetic radiation at a wavelength above ?1.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: July 11, 2006
    Assignee: Osram Opto Semiconductors GmbH
    Inventors: Tony Albrecht, Peter Brick, Glenn-Yves Plaine, Marc Philippens
  • Publication number: 20060138930
    Abstract: A blue-enriched incandescent lamp having on the interior surface of its light transmissive glass envelope a coating in accordance with an aspect of the invention. The coating contains a phosphor that is energized by the ultraviolet/violet emission (<420 nm) from the hot filament causing it to emit radiation in the range of 420 to 490 nm. In a preferred embodiment of the invention, the coating contains a europium-activated barium magnesium aluminate phosphor and a blue pigment.
    Type: Application
    Filed: December 28, 2004
    Publication date: June 29, 2006
    Applicant: OSRAM SYLVANIA INC.
    Inventors: Madis Raukas, Kailash Mishra
  • Publication number: 20060138386
    Abstract: A method of making a haloapatite phosphor having a general formula represented by (Ca(1?x?y)MnxSby)5(PO4)3(F(1?z?y)ClzOy), where O<x<0.05, 0.004<y<0.01, and O<z<O.1. is provided. The method involves (a) formulating a blend of ingredients to make the haloapatite phosphor, the ingredients including CaHPO4 as a primary source of calcium and phosphorus, (b) partially substituting an amount of an equimolar combination of an ammonium phosphate compound and calcium carbonate for an equal number of moles of CaHPO4 in the formulation, (c) combining the ingredients in their formulated amounts to form the blend, and (d) firing the blend to form the haloapatite phosphor. The partial substitution has been found to increase the 100-hour brightness of the haloapatite phosphors.
    Type: Application
    Filed: December 28, 2004
    Publication date: June 29, 2006
    Applicant: OSRAM SYLVANIA INC.
    Inventors: Robert McSweeney, Thomas Snyder, Eric Mercer
  • Publication number: 20060138389
    Abstract: The electroluminescent phosphor of this invention is comprised of zinc sulfide activated with copper and iodine and may produce an emission with an x color coordinate from 0.145 to 0.155 and a y color coordinate from 0.085 to 0.095. The phosphor preferably contains from about 0.08 to about 0.90 weight percent (wt. %) copper.
    Type: Application
    Filed: December 28, 2004
    Publication date: June 29, 2006
    Applicant: OSRAM SYLVANIA INC.
    Inventors: Judy Belinski-Wolfe, Brian Payne
  • Publication number: 20060138941
    Abstract: An electroluminescent organic device with an electromagnetic radiation emitting front side and having at least one pixel divided into at least two sub-pixels for emitting light with respectively different colors is disclosed. The device comprises a substrate; a first electrode over the substrate; at least one active organic layer over said first electrode for emitting electromagnetic radiation; a second electrode over said active organic layer, said second electrode being at least partially transparent to the electromagnetic radiation emitted by said at least one active organic layer; and a support carrying different kinds of pigments respectively aligned with the sub-pixels of the electroluminescent organic device, said support being arranged over said second electrode toward the radiation emitting front side of the device. Instead of a support with pigments a support with color changing media can be used. Furthermore, a method is disclosed to produce such a device.
    Type: Application
    Filed: May 31, 2005
    Publication date: June 29, 2006
    Applicant: Osram Opto Semiconductors GmbH
    Inventor: Georg Wittmann
  • Publication number: 20060139924
    Abstract: At the end of life of a fluorescent lamp having a base to which a pin is press-fitted, it is an object to prevent the pin from dropping or slanting, etc. A fluorescent lamp includes a base having a base body and a pin press-fitted to a hole formed on the base body. A pin retaining force (a pin torque of the base) Fe after use by which the base body retains the pin is at least 0.08 Nm after the fluorescent lamp is burned for a rated life, and a rate Fe/Fi of an initial pin retaining force Fi by which the base body retains the pin before use of the fluorescent lamp and the pin retaining force Fe after use is at least 0.66.
    Type: Application
    Filed: September 2, 2003
    Publication date: June 29, 2006
    Applicant: OSRAM-MELCO LTD
    Inventors: Mitsuhiro Ikeda, Takashi Osawa, Masaomi Takeda, Koji Kokufu
  • Publication number: 20060138387
    Abstract: The present invention is a single-component, UV-emitting phosphor having a composition represented by the general formula (Y1?x?y?zLaxGdyCeZ)PO4 where x has a value in a range from 0.001 to 0.98, y has a value in a range from 0 and 0.1, z has a value in a range from 0.01 and 0.2, and x+y+z<1. The phosphor when stimulated by 254 nm radiation emits in both the UVA and UVB regions. The relative balance of the UVA and UVB emissions may be varied by adjusting the relative amounts of Y and La. Brightness can be increased by adding Gd to the composition.
    Type: Application
    Filed: December 28, 2004
    Publication date: June 29, 2006
    Applicant: OSRAM SYLVANIA INC.
    Inventors: Chen-Wen Fan, Thomas Snyder, Eric Thomason
  • Patent number: D525375
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: July 18, 2006
    Assignee: OSRAM GmbH
    Inventors: Barbara Funck, Rainer Weckenmann