Patents Assigned to OSRAM
  • Publication number: 20040051449
    Abstract: A method of encapsulating devices including providing a getter layer in the penetration path of atmospheric elements. The getter layer serves as a barrier to potentially deleterious atmospheric components, such as moisture and gases, that penetrate the device. In one embodiment, the getter layer surrounds an active region where active component or components are formed.
    Type: Application
    Filed: September 12, 2002
    Publication date: March 18, 2004
    Applicant: Osram Opto Semiconductors (Malaysia) Sdn. Bhd.
    Inventors: Hagen Klausmann, Yuen Sin Lew, Hou Siong Tan, Hooi Bin Lim
  • Publication number: 20040053513
    Abstract: The present invention relates to a method for the production of semiconductor components. This method comprises the steps applying masking layers and components on epitaxial semiconductor substrates within the epitaxy reactor without removal of the substrate from the reactor. The masking layers may be HF soluble such that a gas etchant may be introduced within the reactor so as to etch a select number and portion of masking layers. This method may be used for production of lateral integrated components on a substrate wherein the components may be of the same or different type. Such types include electronic and optoelectronic components. Numerous masking layers may be applied, each defining particular windows intended to receive each of the various components. In the reactor, the masks may be selectively removed, then the components grown in the newly exposed windows.
    Type: Application
    Filed: July 22, 2003
    Publication date: March 18, 2004
    Applicant: Osram Opto Semiconductors GMBH & Co. OHG, a Regensburg Bavaria, corporation
    Inventor: Volker Harle
  • Patent number: 6705748
    Abstract: A ceramic cup may be fitted in the neck of a reflector region to provide good reflection or blockage of the light incident on the reflector neck. Light is then prevented light from incorrectly exiting through the lamp neck or from heating the neck region. The ceramic cup can be cheaper than coatings or other shields. The ceramic cup shield can be more durable and electrically more compatible with the lead structure extending through the neck region. The cup shield can also help align and properly position the light source.
    Type: Grant
    Filed: April 11, 2002
    Date of Patent: March 16, 2004
    Assignee: Osram Sylvania Inc.
    Inventor: Merle E. Morris
  • Patent number: 6707263
    Abstract: A dimming ballast (100) for a high-intensity discharge lamp (10) includes an ignitor (120), a control circuit (140), and a dimming interface (160) for connection to an external dimming controller (30). Following lamp replacement (10), external dimming controller (30) receives a user relamp command and, in response, sends a special relamp signal to dimming interface (160). In response to the special relamp signal, dimming interface (160) communicates with control circuit (140), which directs ignitor (120) to provide high voltage pulses for igniting the replaced lamp. In an alternative embodiment, an external control device such as a triac dimmer (40) receives a user relamp command following lamp replacement and, in response, sends a special relamp signal to a control circuit (240), which directs ignitor (220) to provide high voltage pulses for igniting the replaced lamp.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: March 16, 2004
    Assignee: Osram Sylvania Inc.
    Inventor: Himamshu V. Prasad
  • Publication number: 20040048033
    Abstract: A method of encapsulating organic devices including covering the active component with a getter layer. The getter layer comprises an alkaline earth metal. The getter layer serves to seal the active component and absorb surrounding moisture and gases.
    Type: Application
    Filed: September 11, 2002
    Publication date: March 11, 2004
    Applicant: Osram Opto Semiconductors (Malaysia) Sdn. Bhd.
    Inventors: Hagen Klausmann, Bernd Fritz
  • Publication number: 20040048037
    Abstract: A method of encapsulating an organic device including flash evaporating a getter layer on the substrate is disclosed. The getter layer comprises an alkaline earth metal, such as barium. The getter layer serves to protect the active components by absorbing surrounding moisture and gases.
    Type: Application
    Filed: September 11, 2002
    Publication date: March 11, 2004
    Applicant: Osram Opto Semiconductors (Malaysia) Sdn. Bhd.
    Inventors: Hagen Klausmann, Bernd Fritz
  • Publication number: 20040046500
    Abstract: An electronic device protected by a novel barrier layer is provided. The barrier layer can protect against contamination and degradation arising from many sources, including oxidation and moisture. The barrier layer includes a barrier material that can include oxides, carbides, and compositions of sodium, aluminum, and fluorine.
    Type: Application
    Filed: September 11, 2002
    Publication date: March 11, 2004
    Applicant: Osram Opto Semiconductors GmbH & Co. OGH.
    Inventor: Reza Stegamat
  • Patent number: 6702959
    Abstract: A long-life, white-emitting phosphor blend is provided which comprises about 75 wt. % of a first electroluminescent phosphor having an x color coordinate of about 0.530 and a y color coordinate of about 0.455; about 10 wt. % of a second electroluminescent phosphor having an x color coordinate of about 0.185 and a y color coordinate of about 0.440, said second electroluminescent phosphor containing about 600 ppm copper; and about 15 wt. % of a third electroluminescent phosphor having an x color coordinate of about 0.160 and a y color coordinate of about 0.175, said third electroluminescent phosphor containing about 300 ppm copper.
    Type: Grant
    Filed: June 14, 2002
    Date of Patent: March 9, 2004
    Assignee: Osram Sylvania Inc.
    Inventors: Chen-Wen Fan, Richard G. W. Gingerich
  • Patent number: 6702419
    Abstract: Systems and methods are described for delivering droplets. One embodiment provides a system comprising nozzles adapted to deliver droplets to target points on the substrate, a first camera, and means for determining an angular rotation of the substrate in a coordinate system. In some embodiments the means for determining the angular rotation includes a second camera. The substrate has a top surface and alignment marks. The nozzles have droplet delivery openings oriented towards the substrate for delivery of the droplets. The first camera is oriented substantially towards the nozzle openings, and the second camera is oriented substantially towards the substrate top surface.
    Type: Grant
    Filed: May 3, 2002
    Date of Patent: March 9, 2004
    Assignee: Osram Opto Semiconductors GmbH
    Inventors: Matthias Stoessel, Stephan Roeger, Dirk Buchhauser
  • Publication number: 20040042523
    Abstract: The invention relates to an optically pumped semiconductor laser device having a substrate (1) having a first main area (2) and a second main area (3), at least one pump laser (11) being arranged on the first main area (2). The semiconductor laser device comprises a vertically emitting laser (4) having a resonator having a first mirror (9) and a second mirror (20), said laser being optically pumped by the pump laser (11), the first mirror (9) being arranged on the side of the first main area (2) and the second mirror (20) being arranged on the side of the second main area (3) of the substrate (1).
    Type: Application
    Filed: May 23, 2003
    Publication date: March 4, 2004
    Applicant: Osram Opto Semiconductor GmbH
    Inventors: Tony Albrecht, Norbert Linder, Wolfgang Schmid
  • Publication number: 20040043690
    Abstract: Method for introducing a limited amount of mercury into a fluorescent lamp during manufacture thereof includes the steps of forming the lamp with an exhaust tubulation therein open at an end thereof, exhausting the interior of the lamp through the exhaust tubulation, placing a body of metal material not reactive with mercury in the exhaust tubulation open end, the body having a coating of metal which amalgams with mercury, over a selected surface area of the body, and having mercury on the coated area of the body, such that a limited amount of the mercury is retained by the metal coating, and sealing the open end of the exhaust tubulation, whereby the amount of mercury retained on the body and introduced into the lamp is limited by the surface area of the metal coating on the body.
    Type: Application
    Filed: June 25, 2003
    Publication date: March 4, 2004
    Applicant: OSRAM SYLVANIA INC.
    Inventors: Gregory Zaslavsky, Richard Speer, Philip E. Moskowitz, Joseph V. Lima, Louise D. Cleary
  • Publication number: 20040041515
    Abstract: An amalgam assembly for a fluorescent lamp includes a glass exhaust tubulation extending from an envelope portion of the lamp toward a base portion of the lamp, the tubulation being closed at an end adjacent the lamp base portion, and a glass body disposed in the tubulation and retained by a pinched portion of the tubulation, the glass body being disposed between the pinched portion and the closed end of the tubulation. A mercury amalgam body is disposed between the glass body and the closed end of the tubulation. A mercury wetting metallic layer is disposed on a selected one of (i) an inside surface of the tubulation between the pinched portion and the closed end of the tubulation, and (ii) a surface of the glass body whereby to a wet at least one of (i) the interior surface of the glass tubulation and (ii) the surface of the glass body, to prevent the amalgam, when liquidized, from flowing past the tubulation pinched portion and into the lamp envelope.
    Type: Application
    Filed: August 29, 2002
    Publication date: March 4, 2004
    Applicant: OSRAM SYLVANIA INC.
    Inventors: Richard S. Speer, Louise D. Cleary
  • Patent number: 6699728
    Abstract: An OLED device using improved pillars to facilitate patterning of a conductive layer is described. Conventional use of pillars to pattern electrodes encounters shorting problems due to piling of polymer material at the base of the pillars. This piling deteriorates the profile of the pillars which adversely impacts the ability of the pillars to pattern the conductive layer to form the electrodes. The present invention avoids the shorting problem by separating the pillars into at least first and second sub-pillars. By providing a relatively narrow gap between the sub-pillars, the amount of polymers filling the area between the gap is small. This prevents at least the sidewalls of the pillars facing the gap from being deteriorated by polymer pile-up, thus ensuring that the conductive layer is discontinuous between the sub-pillars.
    Type: Grant
    Filed: November 20, 2001
    Date of Patent: March 2, 2004
    Assignee: Osram Opto Semiconductors GmbH
    Inventors: Ewald Guenther, Lim Hooi Bin, Soh Ed Vin, Tan Hou Siong, Hagen Klausmann
  • Patent number: 6700326
    Abstract: A sealing electrode for discharge lamp having electrically conductive cup, and an emitter pellet is disclosed. The cup seals a passage into the discharge lamp, and additionally supports the electrode pellet or tip for the discharge. The design enables the emitter, electrode and seal structure to be made separately off line, while also enabling the emitter to be protected from contaminants during subsequent assembly.
    Type: Grant
    Filed: June 14, 1999
    Date of Patent: March 2, 2004
    Assignee: Osram Sylvania Inc.
    Inventor: Daniel D. Devir
  • Patent number: 6700335
    Abstract: A ballast (100) and method for regulating power in a high pressure discharge lamp (130) is disclosed. In a preferred embodiment, ballast (100) comprises a microcontroller (102), a buck converter (110), and an inverter (120). Microcontroller (102) monitors a signal representative of the lamp voltage and sets a current in the lamp based upon the monitored signal via control of a buck current provided by the buck converter (110). A method for regulating power in a high pressure discharge lamp is also described. The method comprises steps of detecting (202) a voltage at the lamp and setting (204) a current in the lamp based upon the detected voltage.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: March 2, 2004
    Assignee: Osram Sylavania, Inc.
    Inventor: Himamshu V. Prasad
  • Publication number: 20040038832
    Abstract: A tungsten disulfide powder comprised of macro-spherical particles of tungsten disulfide having an average particle diameter of from about 5 to about 50 micrometers is prepared by successively treating spray-dried powders of ammonium metatungstate with heat in air and sulfidizing the resultant tungsten trioxide in a carbon disulfide-containing atmosphere at about 750° C. The tungsten disulfide powder may also be formed to have a bimodal particle size distribution of the macro-spherical particles and smaller, dispersed micro- to submicron-sized fine particles.
    Type: Application
    Filed: August 12, 2003
    Publication date: February 26, 2004
    Applicant: OSRAM SYLVANIA Inc.
    Inventor: Richard G.W. Gingerich
  • Patent number: 6695665
    Abstract: A sealing electrode for discharge lamp having electrically conductive cup, and an emitter pellet is disclosed. The cup seals a passage into the discharge lamp, and additionally supports the electrode pellet or tip for the discharge. The design enables the emitter, electrode and seal structure to be made separately off line, while also enabling the emitter to be protected from contaminants during subsequent assembly.
    Type: Grant
    Filed: March 17, 2003
    Date of Patent: February 24, 2004
    Assignee: Osram Sylvania Inc.
    Inventor: Daniel D. Devir
  • Patent number: 6696788
    Abstract: An electric discharge lamp includes a light transmissive inner jacket that defines a sealed inner chamber, a first material in the inner chamber that emits light when activated, and a light transmissive outer jacket around the inner jacket. The outer jacket defines a sealed outer chamber between the inner and outer jackets that contains a second fill material. The second fill material, when activated by heat from the inner chamber when the lamp is operating, converts ultraviolet (UV) and deep blue light emitted from the inner chamber to visible light, thereby increasing an amount of visible light transmitted through the outer jacket compared to an amount of visible light transmitted through the inner jacket.
    Type: Grant
    Filed: June 13, 2002
    Date of Patent: February 24, 2004
    Assignee: Osram Sylvania Inc.
    Inventors: Walter P. Lapatovich, Christopher Scott Nordahl
  • Patent number: 6695982
    Abstract: A high efficiency phosphor from the class of the thiometallates, preferably of the thiogallates. The thiometallate being made so as to correspond to the formula (AS)·w(B2S3), where A is at least one divalent cation selected from Mg, Ca, Sr, and where B is at least one trivalent cation selected from Al, Ga, Y. The factor w may lie either in the range 0.8 ≦w ≦0.98 or in the range 1.02 ≦w ≦1.2.
    Type: Grant
    Filed: February 4, 2002
    Date of Patent: February 24, 2004
    Assignees: Patent-Treuhand-Gesellschaft für elektrische Glüjlampen mbH, Osram Opto Semiconductors GmbH & Co. oHG
    Inventors: Andries Ellens, Manfred Kobusch, Wolfgang Rossner
  • Patent number: 6696184
    Abstract: A supported tungsten carbide material is provided. The material has a unique structure as defined by its x-ray diffraction pattern and consists of extremely small crystallites on the order of about 15 to about 30 angstroms in size. The tungsten carbide material is supported on a high-surface-area support to allow for a greater number of active sites for catalysis. The support consists preferably of a high-surface-area carbon.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: February 24, 2004
    Assignee: Osram Sylvania Inc.
    Inventors: Joel B. Christian, Tuan A. Dang, Robert G. Mendenhall