Patents Assigned to OSRAM Gesellschaft mit beschrankter Haftung
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Patent number: 9341328Abstract: A method for producing a light emitting diode arrangement. A plurality of LED modules are provided, which in each case comprise at least one radiation emitting semiconductor component on a carrier body. At least one separately fabricated connection carrier is provided. The LED modules are arranged in such a way that they are adjacent to one another in pairs. A mechanically stable and electrically conductive connection between the carrier bodies of two LED modules is produced by means of the connection carrier. Furthermore, a light emitting diode arrangement is disclosed.Type: GrantFiled: December 16, 2013Date of Patent: May 17, 2016Assignee: OSRAM Gesellschaft mit beschrankter HaftungInventor: Harald Stoyan
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Patent number: 9125281Abstract: A method for controlling a voltage transformer for operating a switchable load having at least one inductance and a switch, which is activated by a digital control device. When the switch is closed, a magnetizing current flows through the inductance. When the switch is open, a demagnetizing current flows through the inductance. The method comprises the steps of measuring the demagnetizing time of the inductance and, when a maximum value of the demagnetizing time of the inductance is exceeded, storing such an occurrence as a fault. The load is disconnected by the control device when a predetermined maximum frequency of faults is exceeded.Type: GrantFiled: July 23, 2010Date of Patent: September 1, 2015Assignee: OSRAM Gesellschaft mit beschrankter HaftungInventor: Arwed Storm
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Patent number: 9119299Abstract: Surface mounted ceramic capacitors (14) on printed circuit boards (10?) are subject to vibrations (18) caused by the piezo effect. Other electronic components are subject to magnetostriction and likewise generate vibrations. In prior art, the vibrations can propagate (20) on a printed circuit board (10). To suppress the propagation of the vibrations caused by the electronic component (14), the invention provides at least one slot (22) in the printed circuit board (10?). The slot (22) extends, for example, parallel to a side wall of the electronic component (14).Type: GrantFiled: July 21, 2006Date of Patent: August 25, 2015Assignee: OSRAM Gesellschaft mit beschrankter HaftungInventor: Oskar Schallmoser
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Patent number: 9115852Abstract: A method for producing a plurality of LED illumination devices which each emit light having an average value of a first photometric parameter including producing a plurality of LED chips which emit light of the same color; measuring values of the first photometric parameter of the LED chips; combining the LED chips to form groups of at least two LED chips which have different values of the first photometric parameter such that differences in the average values of all the LED illumination devices are imperceptible to the human eye; and equipping a respective LED illumination device with a group of LED chips.Type: GrantFiled: December 18, 2009Date of Patent: August 25, 2015Assignees: OSRAM Opto Semiconductors GmbH, OSRAM Gesellschaft mit beschrankter HaftungInventors: Markus Hofmann, Ralph Peter Bertram, Julius Muschaweck
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Patent number: 8979318Abstract: LEDs having a low color temperature up to 5000 K, comprising a blue-emitting LED and, connected upstream thereof, two phosphors having a first phosphor from the class of the chliorosilicates and a second phosphor from the class of the nitridosilicates having the formula (Ca,Sr)2Si5N8:Eu.Type: GrantFiled: July 15, 2005Date of Patent: March 17, 2015Assignees: OSRAM Opto Semiconductors GmbH, OSRAM Gesellschaft mit beschrankter HaftungInventors: Tim Fiedler, Frank Jermann, Jörg Strauβ
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Patent number: 8944657Abstract: A light source comprises a light-emitting device to emit electromagnetic radiation from an emitting surface and an optical element having a light input surface, a light output surface and side surfaces connecting the light input surface to the light output surface. The light input surface is located in the optical path of the light-emitting device, the electromagnetic radiation entering the optical element through the light input surface, and the light input surface has a concave curvature and an area being smaller than the area of the light output surface.Type: GrantFiled: May 28, 2008Date of Patent: February 3, 2015Assignees: OSRAM Opto Semiconductors GmbH, OSRAM Gesellschaft mit beschränkter HaftungInventors: Alessandro Scordino, Julius Muschawek, Jan Marfeld
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Patent number: 8941334Abstract: A method for minimizing the insulation stress of a high-pressure discharge lamp system, with an operating device, which generates a high voltage for starting the high-pressure discharge lamp, wherein a starting voltage time sum applied during lamp starting is minimized, the starting voltage time sum is the sum of all time segments Zi during which the magnitude of the starting voltage exceeds a starting voltage limit, and the starting voltage limit is defined as the factor range of a maximum value, in terms of magnitude, of the applied high voltages.Type: GrantFiled: March 19, 2008Date of Patent: January 27, 2015Assignee: OSRAM Gesellschaft mit beschränkter HaftungInventors: Alois Braun, Joachim Mühlschlegel
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Patent number: 8896006Abstract: A red-emitting luminescent material that belongs to the class of nitridosilicates and is doped with at least one activator D, in particular Eu, wherein the material is a modified D-doped alkaline earth nitridosilicate M2Si5N8, where M=one or more elements belonging to the group Sr, Ca, Ba, with the nitridosilicate having been stabilized by an oxidic or oxinitridic—in particular alkaline earth—phase.Type: GrantFiled: October 26, 2009Date of Patent: November 25, 2014Assignee: OSRAM Gesellschaft mit beschränkter HaftungInventors: Daniel Becker, Tim Fiedler, Frank Jermann, Bianca Pohl
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Patent number: 8808577Abstract: A thermally stable phosphor made of the M-Si—O—N system, having a cation M and an activator D, M being represented by Ba or Sr alone or as a mixture and optionally also being combined with at least one other element from the group Ca, Mg, Zn, Cu. The phosphor is activated with Eu or Ce or Tb alone or as a mixture, optionally in codoping with Mn or Yb. The activator D partially replaces the cation M. The phosphor is produced from the charge stoichiometry MO—SiO2—SiN4/3 with an increased oxygen content relative to the known phosphor MSi2O2N2:D, where MO is an oxidic compound.Type: GrantFiled: July 24, 2008Date of Patent: August 19, 2014Assignee: OSRAM Gesellschaft mit beschrankter HaftungInventors: Daniel Becker, Wolfram Hempel, Frank Jermann, Bianca Pohl
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Patent number: 8760069Abstract: A method for operating a high pressure discharge lamp, with the high pressure discharge lamp being operated by a current inverter with a square wave lamp current having a positive phase with positive current flow and a negative phase with negative current flow, and with the current inverter being controlled by a control arrangement wherein the method comprises the steps of measuring a value for the positive current flow representing the lamp wattage or the square wave lamp current, measuring a value for the negative current flow representing the lamp wattage or the square wave lamp current; calculating a predetermined setpoint value in each case from a guide variable of a lamp wattage or of the square wave lamp current and the measured value for the phase with positive current flow; calculating a predetermined setpoint value in each case from a guide variable of a lamp wattage or of the square wave lamp current and the measured value for the phase with negative current flow; and outputting the two predeterminType: GrantFiled: October 23, 2008Date of Patent: June 24, 2014Assignee: OSRAM Gesellschaft Mit Beschrankter HaftungInventors: Alois Braun, Walter Limmer, Maximilian Schmidl
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Patent number: 8757849Abstract: An optical component comprises a carrier plate (1) having a first main surface (2) and a second main surface (3) facing away from the first main surface (2), and a first lens structure (4) on the first main surface (2), wherein the first lens structure (4) has at least a first lens element (41) having a first polygonal form and a second lens element (42) having a second polygonal form, the first lens structure (4) completely covers the first main surface (2), and the first lens element (41) and the second lens element (42) are non-congruent with respect to one another and/or differ in terms of their orientation on the first main surface (2) of the carrier plate (1).Type: GrantFiled: November 19, 2008Date of Patent: June 24, 2014Assignees: OSRAM Gesellschaft mit beschrankter Haftung, OSRAM Opto Semiconductors GmbHInventors: Peter Brick, Julius Muschaweck, Simon Schwalenberg
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Patent number: 8694287Abstract: An optical system including at least one light source, such as a LED source (10), and an optics (30) subjected to aging as a result of exposure to the light source (10) is designed by: defining an aging model for the optics (30), defining a thermal model for the light source (10, 100) as a spatial function representative of the temperature generated by the light source (10, 100), and defining the distance of the optics (30) from the light source (10) as a function of the aging model and the thermal model. The optical overall system (single or multiple reflector and lens) is finally optimised starting from the results achieved in the previous steps.Type: GrantFiled: October 7, 2009Date of Patent: April 8, 2014Assignee: OSRAM Gesellschaft mit beschrankter HaftungInventors: Simone Capeleto, Katrin Schroll, Simon Schwalenberg, Ulrich Streppel
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Patent number: 8690629Abstract: A luminescence conversion LED having a radiation emitting chip that is connected to electrical connections and is surrounded by a housing that comprises at least a basic body and a cap, the chip being seated on the basic body, in particular in a cutout of the basic body, and the primary radiation of the chip being converted at least partially into longer wave radiation by a conversion element, wherein the cap is formed by a vitreous body, the conversion means being contained in the vitreous body, the refractive index of the vitreous body being higher than 1.6, preferably at least n=1.7.Type: GrantFiled: February 23, 2011Date of Patent: April 8, 2014Assignee: OSRAM Gesellschaft mit beschrankter HaftungInventors: Daniel Becker, Herbert Brunner, Tim Fiedler, Jörg Strauβ, Martin Zachau
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Patent number: 8686557Abstract: An illumination device (1) having comprising at least one support element (4) and at least one light-emitting diode (5) arranged on the support element (4), characterized in that wherein at least one of the plurality of components (2, 3, 4, 7, 10) of the illumination device (1) intended for heat dissipation from the light-emitting diode (5), in particular the support element (4), is provided at least in part with an electrically insulating layer (6, 11) having a high thermal conductivity, formed at least in part from a carbon compound, in particular from amorphous carbon, in particular tetrahedral amorphous carbon.Type: GrantFiled: September 10, 2009Date of Patent: April 1, 2014Assignee: OSRAM Gesellschaft mit beschrankter HaftungInventor: Jens Florian Hockel
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Patent number: 8678621Abstract: A mounting arrangement for a light source (L) having associated a Printed Circuit Board, wherein said mounting arrangement includes: a housing (H) with an exit opening for light from the source (L), a reflector (R) to reflect light from the source (L) towards the opening, an at least partly transparent cover (1) to close the opening of the housing (H). The cover (1) includes a set of retaining elements (12A) for retaining the cover (1) to the housing (H), and a set of holding elements (12B) for holding the associated Printed Circuit Board (D) within the housing (H). Such configuration is capable of exerting a pressure on the reflector (R) when the cover (1) is coupled to the housing (H), and wherein the reflector (R) in turn urges the light source (L) against the housing (H), providing thus thermal coupling between the light source (L) and the housing (H).Type: GrantFiled: October 15, 2009Date of Patent: March 25, 2014Assignee: OSRAM Gesellschaft mit beschrankter HaftungInventors: Alessandro Bizzotto, Simone Capeleto, Christian Hacker, Alessandro Scordino
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Patent number: 8637882Abstract: A method for producing a light emitting diode arrangement. A plurality of LED modules (110, 120, 130) are provided, which in each case comprise at least one radiation emitting semiconductor component (1000) on a carrier body (1300). At least one separately fabricated connection carrier (200) is provided. The LED modules are arranged in such a way that they are adjacent to one another in pairs. A mechanically stable and electrically conductive connection between the carrier bodies of two LED modules is produced by means of the connection carrier. Furthermore, a light emitting diode arrangement is disclosed.Type: GrantFiled: September 26, 2007Date of Patent: January 28, 2014Assignee: OSRAM Gesellschaft mit beschrankter HaftungInventor: Harald Stoyan
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Patent number: 8624493Abstract: An integrated gas discharge lamp (5) with ignition electronics integrated into the base, comprising an ignition transformer (TIP), an ignition capacitor (CIP), and a controlled switching element (SIP), wherein the integrated ignition electronics are configured to generate an asymmetrical ignition pulse, and wherein the voltage ratio between the first lamp electrode near the base and the second lamp electrode distant from the base ranges from 22:1 to 5:4.Type: GrantFiled: November 18, 2009Date of Patent: January 7, 2014Assignee: OSRAM Gesellschaft mit beschrankter HaftungInventors: Knut Asmussen, Bernhard Siessegger
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Patent number: 8619211Abstract: A lighting arrangement is disclosed with a light module (2) that has at least one first group (22, 22?) of light sources (221, 222, 223) and one second group (22, 22?) of light sources that are arranged spaced apart from each other on a flexible circuit board (21), and with a carrier (1) on which the light module is mounted, and a buffer zone (12) that laterally overlaps with the light module between the first and the second group of light sources. Furthermore, a backlighting device and a display device are disclosed.Type: GrantFiled: May 20, 2008Date of Patent: December 31, 2013Assignee: OSRAM Gesellschaft mit beschrankter HaftungInventors: Ralph Peter Bertram, David Dussault, Matthias Fiegler, Harald Stoyan
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Patent number: 8604682Abstract: A lamp which has a lamp glass envelope (14) having contact pins (16) projecting from its end (15) and which is held in a socket receptacle (9) having an insulator (2, 6), wherein the insulator (2, 6) holds a small metallic tube (1) between a contact pin (16) of the lamp envelope (14) and a current-feeding connecting cable (4) in at least one through hole, to which small tube (1) the contact pin (16) is crimped and the connecting cable (4) is connected.Type: GrantFiled: October 18, 2007Date of Patent: December 10, 2013Assignee: OSRAM Gesellschaft mit beschrankter HaftungInventors: Josef Bauer, Hans-Hermann Gmeiner, Silvia Hangl, Johann Holland
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Patent number: 8596834Abstract: A heatsink (2), comprising a heatsink body (3) extending between two endsides (4, 5) of the heatsink body. The heatsink is designed for introducing the heatsink with the first endside ahead into an aperture (16), which is provided in a wall (17), and for a thermal conductive connection of a heat-generating element (14) to the second endside, with a main direction of extent (6) of the heatsink body (3) from the first endside (4) to the second endside (5) being bent or sharply bent. Furthermore, an illumination system with such a heatsink is disclosed.Type: GrantFiled: October 1, 2007Date of Patent: December 3, 2013Assignee: OSRAM Gesellschaft mit Beschränkter HaftungInventors: Felix Franck, Alessandro Maschietto, Alessandro Scordino