Patents Assigned to OSRAM
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Publication number: 20060138963Abstract: A method of operating an arc discharge lamp and a lamp in which a light transmissive envelope encloses electrode tips, a salt and a fill that includes iodine, and in which after turning the lamp off, a first part of the light transmissive envelope is locally cooled relative to other parts of the light transmissive envelope to provide a condensation site for the iodine that is spaced from the electrode tips, the first part of the light transmissive envelope being where a salt reservoir forms and where the salt is cooled by the local cooling. The local cooling may be provided by an indentation in an outer sleeve around the light transmissive envelope, where the indentation contacts the first part to provide a heat sink.Type: ApplicationFiled: December 29, 2004Publication date: June 29, 2006Applicant: OSRAM SYLVANIA INC.Inventors: Walter Lapatovich, A. Budinger
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Publication number: 20060138621Abstract: An optoelectronic component (1) having a semiconductor arrangement (4) which emits and/or receives electromagnetic radiation and which is arranged on a carrier (22) which is thermally conductively connected to a heat sink (12). External electrical connections (9) are connected to the semiconductor arrangement (4), where the external electrical connections (9) are arranged in electrically insulated fashion on the heat sink (12) at a distance from the carrier (22). This results in an optimized component in terms of the dissipation of heat loss and the radiation of light and also in terms of making electrical contact and the packing density in modules.Type: ApplicationFiled: September 29, 2003Publication date: June 29, 2006Applicant: Osram Opto Semiconductors GmbHInventors: Georg Bogner, Patrick Kromotis, Ralf Mayer, Heinrich Noll, Matthias Winter
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Patent number: 7068137Abstract: A coil bobbin (10) that comprises a housing (12) with an interior (13) and including a floor (14) with at least one electrical lead-in (16) projecting through an aperture (15) in the floor. The lead-in (16) has one end (17) formed for attachment to a printed circuit board (18). The electrical lead-in (16) has a given diameter D1 and is provided with thermal-strain relief (20) positioned within the interior (13) of housing (14). The aperture (15) has a diameter D2 larger than the given diameter D1 of the lead-in. The larger diameter D2 of the aperture allows free movement of the lead-in during thermal cycling and contributes to the desired result. This construction also allows the use of round lead-ins over the previously employed square lead-ins, which were required to provide the rigid interference fit previously necessary.Type: GrantFiled: March 24, 2004Date of Patent: June 27, 2006Assignee: Osram Sylvania Inc.Inventor: William D. Koenigsberg
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Patent number: 7068136Abstract: A coil bobbin (10) has a housing (12) having a floor (14) with at least one electrical lead-in (16) projecting therethrough for attachment to a printed circuit board (18). The at least one electrical lead-in (16) is provided with thermal-strain relief (20) between said floor (14) and the printed circuit board (18). In a preferred embodiment of the invention the strain relief takes the form of a loop formed in the lead-in.Type: GrantFiled: March 24, 2004Date of Patent: June 27, 2006Assignee: Osram Sylvania Inc.Inventors: John H. Selverian, William D. Koenigsberg, Joseph L. Parisella
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Publication number: 20060132445Abstract: An input device having a first character of a first color, a second character of a second color and an illumination device which produces light of the first color and/or of the second color such that, depending on the illumination of the input device, in a first operating state only the first character of the first color, in a second operating state only the second character of the second color, or in a third operating state both characters appear.Type: ApplicationFiled: November 14, 2005Publication date: June 22, 2006Applicant: Osram Opto Semiconductors GmbHInventor: Josef Huttner
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Patent number: 7063807Abstract: A phosphor for light sources, the emission from which lies in the short-wave optical spectral region, as a garnet structure A3B5O12. It is activated with Ce, the second component B representing at least one of the elements Al and Ga, and the first component A is terbium or terbium together with at least one of the elements Y, Gd, La and/or Lu. In a preferred embodiment, a phosphor having a garnet of structure (Tb1-x-yRExCey)3(Al,Ga)5O12, where RE=Y, Gd, La and/or Lu; 0?x?0.5-y; 0<y<0.1 is used.Type: GrantFiled: February 25, 2005Date of Patent: June 20, 2006Assignees: Patent-Treuhand-Gesellschaft fuer Elektrische Gluehlampen mbH, OSRAM Opto Semiconductors GmbH & Co. oHGInventors: Franz Kummer, Franz Zwaschka, Andries Ellens, Alexandra Debray, Guenther Waitl
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Patent number: 7064480Abstract: The invention relates to a luminescence conversion led based illumination deice that emits primarily radiation in the range of from 370 and 430 nm of the optical spectrum (peak wavelength). Said radiation is converted to radiation having a longer wavelength using three luminescent substances that emit in the red, green and blue range.Type: GrantFiled: July 27, 2001Date of Patent: June 20, 2006Assignees: Patent-Treuhand-Gesellschaft für Elektrische Glühlampen mbH, Osram Opto Semiconductors GmbHInventors: Dieter Bokor, Andries Ellens, Günter Huber, Frank Jermann, Manfred Kobusch, Michael Ostertag, Wolfgang Rossner, Franz Zwaschka
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Publication number: 20060128042Abstract: A method for encapsulating at least one organic light-emitting (OLED) device (22) comprising the step of forming a concave region (24) on a plate (6) by applying a negative pressure to a predetermined area of the plate. The plate is attached to a substrate (1) comprising at least one active region (23) such that the concave region (24) of the plate (6) spans over the active region (23). Also disclosed is a OLED device (22), in which at least a part of an encapsulation of the device is formed by applying a negative pressure to a predetermined area of a plate (6) forming a concave region (24) of the plate (6).Type: ApplicationFiled: November 7, 2005Publication date: June 15, 2006Applicant: Osram Opto Semiconductors GmbHInventors: Wolfgang Gramann, Ewald Guenther
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Publication number: 20060125404Abstract: An arc discharge light source (10) for automotive headlight applications comprises an arc tube (12) having a hollow body (14) arrayed a long a longitudinal axis (16) and provided with first and second ends (18, 20). The first and second ends have, respectively, first and second jointure areas (22, 24) with the hollow body (14). Electrodes (26, 28) are sealed respectively in each of the first and second ends (18, 20). An arc generating and sustaining medium is contained within the hollow body. a low-voltage-pulse starting aid (30) is associated with the arc tube and comprises an electrically conductive member (32) having an intermediate portion (34) and proximal and distal ends (36, 38). The intermediate portion (34) extends the length of the hollow body (14) and the proximal and distal ends (36, 38) each terminating in a loop (40, 42) comprised of a single turn of electrically conductive material.Type: ApplicationFiled: December 14, 2004Publication date: June 15, 2006Applicant: OSRAM SYLVANIA INC.Inventor: A. Budinger
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Publication number: 20060124945Abstract: A radiation-emitting semiconductor component having a radiation-transmissive substrate (1), on the underside of which a radiation-generating layer (2) is arranged, in which the substrate (1) has inclined side areas (3), in which the refractive index of the substrate (1) is greater than the refractive index of the radiation-generating layer, in which the difference in refractive index results in an unilluminated substrate region (4), into which no photons are coupled directly from the radiation-generating layer, and in which the substrate (1) has essentially perpendicular side areas (5) in the unilluminated region. The component has the advantage that it can be produced with a better area yield from a wafer.Type: ApplicationFiled: September 23, 2003Publication date: June 15, 2006Applicant: Osram Opto Seiconductors GmbhInventors: Johannes Baur, Dominik Eisert, Michael Fehrer, Berthold Hahn, Volker Harle
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Patent number: 7059888Abstract: A socket (5) for a double-ended lamp (12) comprises a pair of opposed connectors (10) including single-piece ceramic housings (14) each having a top surface (16) and a bottom surface (18) and including a contact receiving area (20) formed in the top surface (16). An electrical contact (22) is positioned in the contact receiving area (20) and secured by any suitable means. The electrical contact (22) has a rectangular base (24) with two sides (26, 28) and two ends (30, 32). Opposed, upright walls (34, 36) extend from the sides (26, 28) of the base (24), and an upright clip (38) extends from one end of the base, for example, end (30). The upright walls (34, 36) and the upright clip (38) have portions projecting beyond the top surface (16) of the ceramic housing (14) to receive an end (40) of the lamp (12) therein. The electrical contact (22) is further mounted within a supplemental spring (50) having opposed legs (54, 56) which are adjacent to the upright walls (34, 36) of the contact.Type: GrantFiled: August 31, 2004Date of Patent: June 13, 2006Assignee: Osram Sylvania Inc.Inventors: Michael J. Frappier, William H. Gosselin, Jonathan B. Arold
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Patent number: 7061612Abstract: An LED polarimeter is described which is suitable for measuring the stress in photoelastic materials. The polarimeter comprises a sequential arrangement of an LED light source, a first polarizer, a ¼ wave plate, and a second polarizer substantially aligned along a central axis. The relatively monochromatic LED light source essentially eliminates errors caused by chromatic abberations and heat damage to the polarizing film. Preferrably, the LED light source emits in the green region of the visible spectrum to take advantage of the sensitivity of the human eye to this part of the spectrum.Type: GrantFiled: September 28, 2004Date of Patent: June 13, 2006Assignee: Osram Sylvania Inc.Inventor: David W. Johnston
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Patent number: 7060648Abstract: A tungsten-containing fuel cell catalyst having high electrochemical activity and its method of making are described. The tungsten-containing catalyst may be formed in situ in a fuel cell after the fuel cell is assembled.Type: GrantFiled: July 31, 2003Date of Patent: June 13, 2006Assignee: Osram Sylvania Inc.Inventors: Joel B. Christian, Robert G. Mendenhall
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Patent number: 7059748Abstract: An LED light source (10) has a housing (12) with a base (14). A central heat conductor (18) is centrally located within the hollow core (16) and is formed of a suitable heat-conducting material, such as copper. A cap (36) is fitted over a second printed circuit board (24), and a heat sink (38) is attached to the base (14) and in thermal contact with a first printed circuit board (20). The heat sink (38) has a bottom (40) with an upstanding side wall (42) terminating in a plurality of fingers (44), the fingers (44) being formed to overlie an upper surface (46) of the base (14). The heat sink (38) is preferably formed from black-anodized aluminum.Type: GrantFiled: May 3, 2004Date of Patent: June 13, 2006Assignee: OSRAM Sylvania Inc.Inventors: Charles M. Coushaine, Kim Albright, Thomas Tessnow, Vipin Madhani
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Patent number: 7058250Abstract: The invention relates to a lighting device, comprising a light guide (11; 31; 43), a light source (12; 32, 33; 41), which couples the light that is emitted into the light guide, and a support (10; 20, 21; 22, 23; 30, 35, 38; 40, 42) in the form of a shell, consisting of several interconnected sub-shells which enclose the light guide, at least in the area in which the light should be deviated. The invention also relates to a method for producing a lighting device.Type: GrantFiled: November 30, 2000Date of Patent: June 6, 2006Assignee: Osram GmbHInventors: Bernhard Bachl, Mario Wanninger
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Patent number: 7057337Abstract: An OLED device having pillars with cross section that is wider on the top. The pillars structure a conductive layer during deposition into distinct portions located between the pillars and on the top of the pillars. The pillars are formed by patterning a single photosensitive material which is inert to the chemicals used to deposit the organic functional layers of the OLED device. By using such pillars, the electrodes can be formed without damaging organic functional layers while achieving high resolution.Type: GrantFiled: September 6, 2000Date of Patent: June 6, 2006Assignee: Osram Opto Semiconductors GmbHInventor: Ewald Karl Michael Guenther
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Patent number: 7057334Abstract: A mount (10) for a metal halide arc discharge lamp has a flare (20) including a barrel portion and a frame (32) comprises a clip (40) attached to the barrel portion (30). First and second side rods (50, 60) spaced 180° apart have distal ends (70) and proximal ends (80), with the distal ends being attached to the clip. First and second spaced apart straps (90, 100) connect the side rods intermediate the proximal ends and distal ends. An arc tube (110) is fixed between the first and second straps. The proximal ends diverge outwardly and engage the inner surface of a dome (14) to position one end of the mount. The barrel portion includes two sealed lead-in wires (120, 130). The arc tube includes an electrode (140, 150) in each end (140a, 150a). No electrical connection is made to the frame whereby the frame is electrically isolated.Type: GrantFiled: May 17, 2004Date of Patent: June 6, 2006Assignee: Osram Sylvania Inc.Inventors: Edward M. Callahan, Jr., Ebon L. McCullough, Glen P. Williamson
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Patent number: 7057356Abstract: A circuit for operating a high intensity discharge (HID) lamp includes an H-bridge connected between a common terminal and a power line, and a control circuit connected to the H-bridge. A boost circuit is connected in parallel with the H-bridge between the power line and the common terminal, where the boost circuit includes a resistor, a Zener diode and a capacitor connected in series.Type: GrantFiled: November 10, 2004Date of Patent: June 6, 2006Assignee: Osram Sylvania Inc.Inventors: Andrew O. Johnsen, Bernhard Ertl, Guy P. Bouchard, Arnulf Rupp
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Patent number: 7053562Abstract: A lamp includes a lamp voltage conversion circuit which converts a line voltage to an RMS load voltage by clipping or modulating a load voltage. The voltage conversion circuit includes a time-based signal source that triggers conduction in the voltage conversion circuit independently of line voltage magnitude. A transistor switch whose gate receives signals from the time-based signal source triggers the voltage conversion circuit. A microcontroller increases one of a rate and a duration of the signals from the time-based signal source sent to the gate of the transistor switch when starting the lamp.Type: GrantFiled: April 1, 2005Date of Patent: May 30, 2006Assignee: Osram Sylvania Inc.Inventors: Ernest C. Weyhrauch, George B. Kendrick, Matthew B. Ballenger
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Patent number: D523569Type: GrantFiled: February 15, 2005Date of Patent: June 20, 2006Assignee: OSRAM Gesellschaft mbHInventors: Barbara Funck, Rainer Weckenmann