Patents by Inventor Thomas Tessnow

Thomas Tessnow has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7588359
    Abstract: An LED light source (10) comprises a heat sink (12) having a body (14) with a front surface (16) and a rear surface (18), the rear surface (18) being provided with heat dissipaters (20). The front surface (16) includes a pocket (22) for the receipt of components (24), the components including at least one LEDs (25) and electrical circuitry therefor. A housing (26) has a flange (28) and a tubular projection (30) fitted into the pocket (22) in a manner to fix the components (24) in the heat sink (12); and an optical light guide (32) having at least one light pipes (34) is positioned in the tubular projection (30), each of the at least one light pipes (34) having a light input end (34a) fixed in light gathering alignment with the at least one LEDs (25) in a one-to-one relationship.
    Type: Grant
    Filed: June 29, 2006
    Date of Patent: September 15, 2009
    Assignee: Osram Sylvania Inc.
    Inventors: Charles M. Coushaine, Ralph Johnson, Thomas Tessnow
  • Publication number: 20090213606
    Abstract: A solid-state light source (10) comprising a plurality of LED units (12) arrayed to emit light generally about an axis (14). Each of the LED units (12) can comprise a number of LEDs, for example, up to five. They may all emit in a single color or multiple colors can be combined for a specific effect. A light transmissive light guide (16) is associated with the LED units (12) and has a plurality of input widows (18). Each LED unit (12) faces a respective input window (18) and each window (18) transversely intercepts the axis (14) and receives light from the LED units (12). The input windows (18) lead to a common output window (20) that is axially aligned with the input windows (18). The light guide (16) has smooth sidewalls (22) that extend between the input windows (18) and the output window (20).
    Type: Application
    Filed: August 23, 2006
    Publication date: August 27, 2009
    Applicant: OSRAM SYLVANIA, INC.
    Inventors: Charles M. Coushaine, Angela Hohl-Abichedid, Ralph Johnson, William E. Meyer, Thomas Reiners, Thomas Tessnow, Michael Tucker, Ralf Vollmer
  • Publication number: 20090185389
    Abstract: A light with one or more LEDs directing light in a first direction. The light has first and second over-lying light guides receiving light from the LEDs. The light guides extend in the first direction X. Plural LEDs can be used and they may direct light from either or both ends of the light guides. The light guides can be clear if the LEDs emit colored light, or colored if the LED emits white light. A plurality of first light deflectors is associated with the first light guide and a plurality of second light deflectors is associated with the second light guide for directing the light that has been emitted from the light source along the first direction X in a second, output direction Y, the first light deflectors being offset from the second light deflectors to evenly distribute output light.
    Type: Application
    Filed: September 5, 2008
    Publication date: July 23, 2009
    Applicant: OSRAM SYLVANIA INC
    Inventors: Thomas Tessnow, Hong Luo
  • Publication number: 20090086501
    Abstract: An automotive headlamp bulb provides the two light or three filament sources in a single bulb. One source may be used to generate a standard headlamp beam, while the second source may be used to generate an augmenting side beam in response to a turning signal. A similar third filament may provide an augmenting beam to the opposite side, or farther to the same side. The single bulb eliminates the need for a second bulb, or a second reflector in an advanced headlamp system with turning light augmentation.
    Type: Application
    Filed: September 28, 2007
    Publication date: April 2, 2009
    Applicant: OSRAM SYLVANIA INC
    Inventors: Daniel D. Devir, Thomas Tessnow, Michael Tucker, Joseph L. Wegman, Andreas Osten, Craig Landcastle
  • Publication number: 20090052200
    Abstract: A vehicle light (10) that can be used, for example, in a headlamp assembly (25) for a headlight projection system for use with forward illumination, comprises a reflector (12) and a light source (14) operatively mounted with the reflector (12). Preferably, the light source (14) is a filamented, tungsten halogen lamp capsule providing visible radiation and IR radiation and the reflector (12) is elliptical. The headlamp assembly (25) is mounted in a housing (27). A lens (16), such as an aspheric projector lens, directs the visible and IR radiation emanating from the light source (14) toward a field (18) to be illuminated and a shutter (20), which provides the cutoff for the low beam, has a position (22) between the light source (14) and the lens (16). The shutter (20) is transparent to the IR radiation and opaque to the visible radiation and is moveable into and out of the position (22) between the light source (14) and the lens (16), for example, by actuation of a solenoid (23).
    Type: Application
    Filed: August 22, 2007
    Publication date: February 26, 2009
    Inventors: Thomas Tessnow, Michael Tucker
  • Publication number: 20090034278
    Abstract: A vehicle headlamp includes a first planar array of low and high beam LED light sources; a first primary optical light guide receiving low and high beam light from the LEDs; a first secondary optical light guide receiving and focusing collimated low and high beam light from the first primary light guide as a combination of low and high beam hot spots; a second planar array of LED light sources having a low and high beam LEDs; a second primary optical light guide receiving and collimating low and high beam light from second LED light sources; a second secondary optical light guide receiving said collimated low and high beam light and spreading the light as a combination of low and high beam spread pattern; a housing to mechanically support the LED arrays, the first primary optic, the first secondary optic, the second primary light guide and the second secondary optic.
    Type: Application
    Filed: March 3, 2006
    Publication date: February 5, 2009
    Applicant: OSRAM SYLVANIA INC
    Inventors: Thomas Tessnow, Ralph Johnson
  • Publication number: 20090034241
    Abstract: A decorative light tile includes a base, a light source adjacent to the perimeter of the base positioned to illuminate at least a slanted light reflecting area of the base, and a cover mounted on the base adapted to be illuminated by light from the light source reflected off the slanted light reflecting area. Additionally, the light tile includes a bus bar system. The bus bar system includes positioned along a perimeter of the light tile. The bus bar system is electrically connected to the light source and provides a circuit for supplying power to the light source. A light tile system includes a plurality of light tiles, a decorative sheet positioned adjacent to each light tile and illuminated by the light source within the light tile, and a power supply. Each light tile includes a bus bar system connected to a light source within the light tile and the light tiles may be positioned contiguous to each other so that the bus bar systems are in electrical contact with each other.
    Type: Application
    Filed: July 31, 2007
    Publication date: February 5, 2009
    Applicant: OSRAM SYLVANIA, INC.
    Inventors: Charles Coushaine, Frank St. Onge, Thomas Tessnow
  • Publication number: 20090034283
    Abstract: A direct view LED lamp (10) comprising: a heat sink body (12) having a longitudinal axis (14) and a wall (16) having an exterior (18) and an interior (20). A cavity (22) is formed in the interior (20) and is defined by a circumferential side wall (24) and a back wall (26). A circuit board (28) is positioned in the cavity (22) adjacent the back wall (26). At least one LED (30) is mounted on the circuit board (28) facing in an axial direction parallel to the longitudinal axis (14) and away from the circuit board (28). An optical light guide (32) is positioned adjacent the at least one LED (30). A housing (42) spans the cavity (22) and has a coupling face (44) to mate with the heat sink body (12).
    Type: Application
    Filed: January 24, 2008
    Publication date: February 5, 2009
    Inventors: Kim M. Albright, Thomas Tessnow
  • Publication number: 20090003009
    Abstract: An LED lamp (10) has a housing (12) with an interior wall (14) defining a cavity (16). An LED light source (26) is positioned in the cavity (16) and project light in a forward direction. A reflector (28) having a reflective surface (30), a forward opening (32) and a rear opening (34) surrounds the light source (26) and a complex lens (38) closes the forward opening. The lens (38) comprises a first optical refractive element (40) arranged around a peripheral edge (42) and a second optical refractive element (44) centrally located on the lens (38); the first optical refractive element (40) including a plurality of flute lenses (40a) and the second optical refractive element (44) comprising a concavo-convex lens (44a).
    Type: Application
    Filed: January 30, 2008
    Publication date: January 1, 2009
    Inventors: Thomas Tessnow, Mike Tucker, Vipin Madhani, Peter Frey
  • Patent number: 7416324
    Abstract: A vehicle light assembly may be made from a lamp having a plurality of LED light sources arrayed circumferentially around the lamp; a reflector body having a reflector axis generally directed to a field to be illuminated. A plurality of reflective surfaces is formed on the front side, the respective reflective surfaces separated by one or more axially extending walls. A through passage is formed in the reflector body, sized and shaped to receive a portion of the lamp, and intersecting a planar extension of at least one of the axially extending walls separating a first reflective surface from a second reflective surface. The planar extension intersects the lamp between a first LED and a second LED whereby light form the first LED substantially shines toward the first reflective surface and the light from the second LED shines toward the second reflective surface.
    Type: Grant
    Filed: June 22, 2005
    Date of Patent: August 26, 2008
    Assignee: Osram Sylvania Inc.
    Inventors: Thomas Tessnow, Charles Coushaine, Howard Eng, Michael Tucker
  • Patent number: 7375382
    Abstract: An optical light guide has a substantially rigid light transmissive body having an input window, a distal end, a front side, and a rear side. The light transmissive body has a substantially smooth exterior surface on the front side and a substantially clear and solid interior. The input window transmits light into the light transmissive body and extends substantially transverse to a longitudinal axis of a light emitting diode (LED) light source. The light transmissive body has a substantially constant thickness measured between the front side and the rear side. The light transmissive body extends away from the input window through an arc of from 60 to 120 degrees to an extension that forms an output region extending towards the distal end. The rear side, at least in said output region, is formed with a plurality of totally internally reflective steps directing intercepted light towards the front side.
    Type: Grant
    Filed: June 5, 2006
    Date of Patent: May 20, 2008
    Assignee: Osram Sylvania, Inc.
    Inventor: Thomas Tessnow
  • Publication number: 20070295978
    Abstract: An LED and light guide assembly has an LED with an output surface; a first power input lead electrically coupled to a first pole and having a first surface and a second surface; and a second power input lead electrically coupled to a second pole and having a first surface and a second surface. A unitary, molded light guide has an axially extending, light transmissive body with a light output window. An input window is formed with the unitary, molded light guide being aligned in a zero-gap relationship to capture substantially all the light emitted by the LED. A support is formed integral with the light guide and envelopes a portion of the first surface and the second surface of the first power input lead and the first surface and the second surface of the second power input lead to anchor the guide with respect to the power inputs.
    Type: Application
    Filed: June 26, 2006
    Publication date: December 27, 2007
    Inventors: Charles M. Coushaine, Ralph Johnson, Thomas Tessnow
  • Publication number: 20070258237
    Abstract: A light source system is arranged about an axis, and includes a planar member having top and bottom surfaces with a central aperture and a plurality of electrical conductors spaced about the central aperture and extending beyond the top and bottom surfaces. A portion of the electrical conductors extending beyond the top surface have electrical insulators. A base having passages to receive the electrical conductors extends beyond the bottom surface and includes a boss on the top surface fitted through the aperture. A body has a first part coaxial with the axis and a second part transverse to the axis. A light source is positioned near an end of the first part. The base is positioned at an opposite end of the body and a plurality of rod-like members project from the second part parallel to the axis; and a light emitting diode is positioned adjacent the first part.
    Type: Application
    Filed: May 8, 2006
    Publication date: November 8, 2007
    Inventors: Angela Hohl-AbiChedid, Miguel Galvez, Thomas Tessnow, Charles Coushaine, Robert Colburn
  • Patent number: 7290910
    Abstract: A light source system is arranged about an axis, and includes a planar member having top and bottom surfaces with a central aperture and a plurality of electrical conductors spaced about the central aperture and extending beyond the top and bottom surfaces. A portion of the electrical conductors extending beyond the top surface have electrical insulators. A base having passages to receive the electrical conductors extends beyond the bottom surface and includes a boss on the top surface fitted through the aperture. A body has a first part coaxial with the axis and a second part transverse to the axis. A light source is positioned near an end of the first part. The base is positioned at an opposite end of the body and a plurality of rod-like members project from the second part parallel to the axis; and a light emitting diode is positioned adjacent the first part.
    Type: Grant
    Filed: May 8, 2006
    Date of Patent: November 6, 2007
    Assignee: Osram Sylvania Inc
    Inventors: Angela Hohl-AbiChedid, Miguel Galvez, Thomas Tessnow, Charles M. Coushaine, Robert H. Colburn
  • Patent number: 7275839
    Abstract: The multi-color light lamp has a base divided into a plurality of segments. The three segments are spaced at 120 degrees. More or less segments can be used. An LED is positioned in each segment, the LED in each segment emits a color distinct from the light emitted by the LEDs in the other segments. If the lamp is to be used for automotive purposes, the LED in a first segment emits red light as a taillight and a stop light, the LED in a second segment emits yellow light a turn signal lamp, and the LED in the third segment emits white light as a backup light. A light pipe is operatively associated with the LEDs in each segment for directing emitted light away from the base. The LEDs (preferably two per segment) are mounted upon a thermally efficient printed circuit board such as a flex-on aluminum board.
    Type: Grant
    Filed: April 5, 2005
    Date of Patent: October 2, 2007
    Assignee: Osram Sylvania, Inc.
    Inventors: Charles M. Coushaine, Michael Tucker, Thomas Tessnow
  • Patent number: 7261437
    Abstract: An LED wedge-based lamp and method of making the lamp, where the lamp has a generally planar circuit board having one end that has electrical connections exposed thereon and a connecting part that is adapted to mechanically couple the lamp to a wedge-based lamp socket. The lamp includes an LED light engine near a second end of the circuit board, where the light engine includes plural laterally aligned LEDs whose light output mimics the light output of an incandescent lamp, such as used in automobile stop and turn signals. The lamp includes a load resistor, whose load mimics that of the incandescent lamp, on an exterior surface of the connecting part. The connecting part may be a sleeve that slides onto the circuit board. A hand grip/heat sink may be provided at the second end of the circuit board.
    Type: Grant
    Filed: June 10, 2004
    Date of Patent: August 28, 2007
    Assignee: Osram Sylvania Inc.
    Inventors: Charles M. Coushaine, Steve C. Sidwell, Thomas Tessnow, Robert H. Colburn
  • Patent number: 7261451
    Abstract: A vehicle headlamp (10) has a first light source (12) for illuminating an area forward of the light source (12). The first light source (12) is preferably a filamented tungsten halogen capsule or an arc discharge source. The first light source (12) is arrayed along a longitudinal axis (14) and emits substantially white light. A second light source (16) in the form of a plurality of light emitting diodes is arrayed about the first light source (12), and the second light source (16) emits light via an optic 42 for providing a daylight running light. Via the optic 42 light is emitted in a forward direction as well as toward the reflector to increase the lighting area.
    Type: Grant
    Filed: January 13, 2006
    Date of Patent: August 28, 2007
    Assignee: Osram Sylvania Inc.
    Inventors: Charles M. Coushaine, Thomas Tessnow, Michael Tucker
  • Patent number: 7261452
    Abstract: A lamp (10) has a housing (12) with a base (14) with an internal circumferential wall (16) arranged about a longitudinal axis (18). A hollow body (20) projects from the housing (12) and is symmetrically arrayed about the longitudinal axis (18). A light guide (21) is positioned in the hollow body (20) and as a single output end (22) arrayed along the longitudinal axis (18) and has a plurality of radially extending arms (23), each of the arms having an input end (24). The light guide (21) is preferably constructed from a molded acrylic or a suitable glass having wave-guide characteristics.
    Type: Grant
    Filed: February 8, 2005
    Date of Patent: August 28, 2007
    Assignee: Osram Sylvania Inc.
    Inventors: Charles M. Coushaine, Thomas Tessnow
  • Patent number: 7237927
    Abstract: A lamp component has a support with a base surrounded by an interior wall defining a cavity with a central axis. A plurality of LEDs are supported on the interior wall and generally aimed to direct light towards the central axis. A center piece has a first reflective surface shaped and positioned to intercept light received from the LEDs and reflect such received light generally in a direction parallel to the axis.
    Type: Grant
    Filed: May 9, 2005
    Date of Patent: July 3, 2007
    Assignee: Osram Sylvania Inc.
    Inventors: Charles Coushaine, Michael Tucker, Thomas Tessnow, Ralph Johnson, Steven Sidwell
  • Patent number: D586751
    Type: Grant
    Filed: June 13, 2006
    Date of Patent: February 17, 2009
    Assignee: Osram Sylvania, Inc.
    Inventors: Charles M. Coushaine, Thomas Tessnow, Kim Albright