Light Emitting Diode (led) Patents (Class 362/555)
  • Publication number: 20140218955
    Abstract: Illuminated moldings with integrated control are provided. The illuminated moldings with integrated control use low voltages, are energy efficient and easy to install and use. The illuminated moldings with integrated control may be attached to various surfaces of different objects. The illuminated molding is insulated and does not carry electricity, and can be placed under water with never a risk of shock even if something damages or cuts the molding. Further, the illuminated moldings with an integrated control allow a user to control various illumination characteristics and effects such as the turn on or turn off time, the color, the brightness, the transition between various operation modes. The integrated control may be wired or wireless.
    Type: Application
    Filed: February 1, 2013
    Publication date: August 7, 2014
    Inventor: SCOTT LEE
  • Publication number: 20140218957
    Abstract: In various embodiments, LED-based illumination devices include an inlet region for receiving the LED light that is complementary in shape to the lens of the LED.
    Type: Application
    Filed: February 27, 2014
    Publication date: August 7, 2014
    Inventor: Anthony Catalano
  • Patent number: 8794809
    Abstract: A lighting system has one or more light guides capable of guiding light, each comprising a core and two optically smooth faces. A cavity adjacent to two of the optically smooth faces has an opening and a reflective-transmissive surface opposite the opening. A cover having a light source is proximate to and occludes the opening. A major portion of any light emitted from the light source is reflected by the reflective-transmissive surface of the cavity and is injected into the light guides, and a minor portion of any light emitted by the light source is transmitted through the reflective-transmissive surfaces of the cavity and emitted from the lighting system. A light injection coupler is also disclosed that has an optically transmissive housing and suitable for use to couple ends of at least one light guide thereby making a lighting system.
    Type: Grant
    Filed: April 1, 2009
    Date of Patent: August 5, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: David J. Lundin, David G. Freier, Kenneth A. Epstein, Scott D. Gullicks
  • Publication number: 20140211498
    Abstract: The invention relates to an interior trim component for a motor vehicle, which comprises: a carrier component, which determines the contour of the interior trim component, a cover layer, which is applied to a front side of the carrier component, and a light-emitting layer, which is applied to a back side of the carrier component, wherein the carrier component and the cover layer are transparent.
    Type: Application
    Filed: January 30, 2014
    Publication date: July 31, 2014
    Inventors: Carter Scott CANNON, Michael BEHNKE
  • Publication number: 20140211495
    Abstract: An optical waveguide includes a body of optically transmissive material having a width substantially greater than an overall thickness thereof. The body of material has a first side, a second side opposite the first side, and a plurality of interior bores extending between the first and second sides each adapted to receive a light emitting diode. Extraction features are disposed on the second side and the extraction features direct light out of at least the first side and at least one extraction feature forms a taper disposed at an outer portion of the body.
    Type: Application
    Filed: March 15, 2013
    Publication date: July 31, 2014
    Applicant: Cree, Inc.
    Inventor: Cree, Inc.
  • Publication number: 20140211496
    Abstract: A dropped-ceiling lighting system having a reflector positioned in an opening in a grid used to suspend a dropped ceiling, a lighting device including a light source mounted adjacent to the reflector, a structural support securing the lighting device to the grid, and a power source for the lighting device. Also discloses is a dropped-ceiling lighting system comprised of a reflector attached to a plenum barrier positioned in an opening in a grid used to suspend a dropped ceiling, a power source extends from a first edge of the plenum barrier to a second edge of the plenum barrier, and a light source is mounted to the power source.
    Type: Application
    Filed: August 30, 2013
    Publication date: July 31, 2014
    Applicant: Cree, Inc.
    Inventor: John Durkee
  • Publication number: 20140211497
    Abstract: An optical waveguide includes a body of optically transmissive material defined by outer edges and having a width substantially greater than an overall thickness thereof. The body of optically transmissive material includes a first side and a second side opposite the first side. An interior coupling cavity is defined by a surface intersecting the second side and extends from the second side toward the first side. The interior coupling cavity is disposed remote from edges of the body and is configured to receive an LED element. The body of optically transmissive material further includes a first array of light mixing cavities surrounding the interior coupling cavity and an extraction feature disposed on one of the first and second sides. The light extraction feature at least partially surrounds the interior coupling cavity.
    Type: Application
    Filed: December 9, 2013
    Publication date: July 31, 2014
    Applicant: Cree, Inc.
    Inventors: Zongjie Yuan, Jiayin Ma, Kurt S. Wilcox, Eric J. Tarsa
  • Patent number: 8783927
    Abstract: A backlight for an appliance knob provides a light pipe that may receive light from a light source fixed behind a console at a variety of different extensions permitting ready adjustment of the light pipe to fit closely behind the appliance knob with different console thicknesses and tolerances.
    Type: Grant
    Filed: January 11, 2011
    Date of Patent: July 22, 2014
    Assignee: Illinois Tool Works Inc.
    Inventors: Edward J. Claprood, David C. Gill
  • Patent number: 8783903
    Abstract: A light-emitting electronic textile (1;35) comprising: a flexible component carrier (2) having a plurality of light sources (3) arranged thereon; and at least one textile light-diffusing member (4) arranged to diffuse light emitted by the light sources (3). The textile light-diffusing member (4) comprises: a first textile layer (10) comprising fibers (14); a second textile layer (11) comprising fibers (15); and a spacing layer (12) arranged between the first textile layer (10) and the second textile layer (11), wherein the spacing layer (12) comprises spacing fibers (16) that space apart the first and second textile layers, the spacing fibers (16) being attached to fibers (14,15) comprised in each of the first and second textile layers to thereby mechanically connect the first (10) and second (11) textile layers with each other.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: July 22, 2014
    Assignee: Koninklijke Philips N.V.
    Inventors: Rabin Bhattacharya, Hugo Johan Cornelissen, Koen Van Os
  • Patent number: 8783902
    Abstract: In an embodiment, an illuminating device includes a light source, a light source control unit, an estimation unit, a first calculating unit, and a second calculating unit. The light source includes light emitters, each having a different spectral distribution. The light source control unit determines an emission intensity of each of the light emitters. The estimation unit estimates a spectral reflectivity of an object. The first calculating unit calculates a first evaluation value, indicating an adequacy of a color of the object visually perceived, based on the spectral distributions and the spectral reflectivity. The second calculating unit calculates a second evaluation value, indicating how much an influence is given by the illuminating light to factors other than a visual sense. The light source control unit determines the emission intensities by which the first evaluation value and the second evaluation value satisfy a restraint condition determined beforehand.
    Type: Grant
    Filed: July 30, 2012
    Date of Patent: July 22, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Junya Takakura, Yoshie Imai, Toshimitsu Kaneko
  • Publication number: 20140198519
    Abstract: A light projector has a light emitting device having a light emitting surface, an optical fiber having an incident end-face to which light emitted from the light emitting surface enters, and a lens arranged between the light emitting surface of the light emitting device and the incident end-face of the optical fiber. The light emitting device, the optical fiber and the lens are arranged on one optical axis. The optical fiber includes a core region as a region including a single core of uniform refractive index or a region collectively encompassing a plurality of cores having uniform refractive index. The lens converts diffused light emitted from the light emitting surface to diffused light that widens more moderately.
    Type: Application
    Filed: March 17, 2014
    Publication date: July 17, 2014
    Applicant: OMRON CORPORATION
    Inventors: Motoharu Okuno, Tsuyoshi Miyata, Takamasa Kameda
  • Patent number: 8770792
    Abstract: A lighting variable configuration apparatus comprises a plurality of ring-shaped bodies, arranged about a central axis and provided with respective plurality of lighting sources, in particular LEDs, and connected to one another by means of joints in such a way to be differently oriented with respect to one another; the bodies are connected to one another by means of pins made of electric conductive material which contact respective pairs of terminals arranged on adjacent bodies, so that the adjacent bodies are rotational with respect to one another by means of the pins and are electrically connected by means of the same pins.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: July 8, 2014
    Inventor: Carlotta Francesca Isolina Maria de Bevilacqua
  • Patent number: 8770761
    Abstract: An illumination unit includes one or more light sources each including a solid-state light-emitting device configured to emit light from a light emission region including a single or a plurality of light-emitting spots. The solid-state light-emitting device includes a single chip or a plurality of chips each emitting a light beam. Three or more of the light-emitting spots are provided within the whole of one or more light sources, to allow the whole of one or more light sources to emit light beams in two or more wavelength bands different from one another, and the solid-state light emitting device in a first light source which is at least one of the one or more light sources, has a plurality of light-emitting spots which emit light in the same wavelength band.
    Type: Grant
    Filed: October 19, 2011
    Date of Patent: July 8, 2014
    Assignee: Sony Corporation
    Inventor: Koji Miura
  • Patent number: 8770787
    Abstract: Proposed is a luminaire (1), comprising light sources (10) and optical elements (20). The light sources (10) are arranged in a first (11) and a second array (12), while the optical elements (20) are arranged in a first (21) and a second section (22). The first ‘light sources' array (11) and the first Optical element’ section (21) form a first group (31), and the second array (12) and the section (22) form a second group (32). The luminaire (1) is characterized in that the optical elements (20) of each group are arranged to have different beam shaping characteristics, and the arrays (11,12) are arranged to be individually addressable. This is especially advantageous in illumination applications where the control of the beam shape is required or desired. Advantageously, the invention provides a luminaire (1) capable of adjusting the beam shape without using an adjustable optical system. Moreover, the control bandwidth of the light sources limits the speed with which the beam shape can be adjusted.
    Type: Grant
    Filed: June 9, 2008
    Date of Patent: July 8, 2014
    Assignee: Koninklijke Philips N.V.
    Inventors: Michel Cornelis Josephus Marie Vissenberg, Willem Lubertus Ijzerman
  • Publication number: 20140185312
    Abstract: An optical module apparatus and method operates at high temperatures. The apparatus has a first printed circuit board with optoelectronics and electronics located on a thermoelectric cooler. The thermoelectric cooler is located on a second printed circuit board that also has electronics that control the thermoelectric cooler separately mounted thereon. The optical module operates at substantially higher temperatures by placing the optoelectronics and the electronics, not including the thermoelectric cooler controller, on the thermoelectric cooler. The electronics controlling the thermoelectric cooler only require relatively simple, low-speed electronics that are implemented in integrated circuit technologies. The integrated circuit electronics may operate at very high temperatures (200° C. or higher) thereby making control of the thermoelectric cooler with uncooled electronics possible.
    Type: Application
    Filed: December 19, 2013
    Publication date: July 3, 2014
    Inventor: Duane Louderback
  • Publication number: 20140185313
    Abstract: An electronic apparatus includes a fan unit having a first connector part and a second connector part disposed at different positions, and a housing configured to accommodate the fan unit. The housing includes a connector and a connector protecting part. The connector is configured to be connected to one of the first and the second connector parts, and the connector protecting part is configured to cover the other one of the first and the second connector parts when the fan unit is inserted into the housing.
    Type: Application
    Filed: March 7, 2014
    Publication date: July 3, 2014
    Applicant: FUJITSU LIMITED
    Inventor: Shohei HASHIMOTO
  • Patent number: 8764261
    Abstract: An optical surgical probe includes a handpiece, a light guide within the handpiece, and a multi-spot generator at a distal end of the handpiece. The handpiece is configured to optically couple to a light source. The light guide is configured to carry a light beam from the light source to a distal end of the handpiece. The multi-spot generator includes a faceted optical element with a faceted end surface spaced from a distal end of the light guide. The faceted end surface includes at least one facet oblique to a path of the light beam.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: July 1, 2014
    Assignee: Alcon Research, Ltd.
    Inventor: Ronald T. Smith
  • Patent number: 8764259
    Abstract: A lighting assembly including a semiconductor light source, a support with a recess within which the semiconductor light source is positioned, and a collimator having light entry and light exit openings joined together by at least one side wall. The collimator is moveable relative to the support. The collimator is attached to the support such that the light entry opening of the collimator and the recess are joined in a nested manner so that light emitted by the semiconductor light source within the recess enters the collimator through the light entry opening and exits essentially only through the light exit opening of the collimator for any position of the collimator over its range of motion. The lighting assembly further includes an actuator for moving the collimator over at least part of its range of motion. An automotive headlamp arrangement includes the lighting assembly, a reflector element and a secondary optic.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: July 1, 2014
    Assignee: Koninklijke Philips Electronics N.V.
    Inventor: Josef J. Schug
  • Patent number: 8764265
    Abstract: This invention relates to a backlight unit that is adaptive for increasing brightness uniformity, and a liquid crystal module using the same. The backlight unit includes a plurality of light emitting diodes with the (2i?1)th (where i is a natural number) light emitting diodes of the plurality connected in a first series circuit between an input terminal and an output terminal and the 2ith light emitting diodes of the plurality connected in a second series circuit. The second series circuit is connected in parallel with the first series circuit between the input terminal and the output terminal, and each of the 2ith light emitting diodes is disposed adjacent to a respective (2i?1)th light emitting diode.
    Type: Grant
    Filed: June 13, 2006
    Date of Patent: July 1, 2014
    Assignee: LG Display Co., Ltd.
    Inventor: Jung Sun Yoo
  • Patent number: 8764260
    Abstract: The present invention relates to a light-guiding cover and an illumination device having the same. The light-guiding cover, for guiding light beams emitted by at least one light-emitting diode (LED), has a light-guiding portion and a light output portion. The light-guiding portion has a light input surface for transmitting light beams thereto and a connecting surface. The light output portion formed on one end of the light-guiding portion has an optical surface adjoining the connecting surface. The light-guiding cover is substantially symmetrical and defines a central axis. The light beams received by the light-guiding portion are guided by the light input surface for light reflection from one side to another side of the optical surface across the central axis to exit from the light-output portion. Thus, the illumination device having the light-guiding cover can illuminate in an omni-directional manner.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: July 1, 2014
    Assignee: Lite-On Technology Corporation
    Inventor: Chun-Wei Liang
  • Publication number: 20140177264
    Abstract: An electronic censer includes a seat and an incense detachably mounted on the seat. The seat includes a base, a supporting plate mounted on the base, two pins protruding from the plate and an annular rib surrounding the pins. A bottom of the incense is inserted within the annular rib. The incense includes a light guiding rod, a shell enclosing the rod, an LED, a circuit board and a battery embedded within the shell. An induction coil is fixed in the shell to control the lighting of the LED.
    Type: Application
    Filed: August 15, 2013
    Publication date: June 26, 2014
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: CHIH-CHEN LAI
  • Publication number: 20140177261
    Abstract: A light source module includes a light source and a light guiding pole. The light guiding pole is made of transparent material and has a light incident surface and at least one side surface connected to the light incident surface. The light source emits light rays, and faces the light incident surface. The light incident surface guides the light rays into the light guide pole, and the at least one side surface totally reflects the light rays. At least one slot is defined at the at least one side surface, and extends along a lengthwise direction of the light guiding pole. The at least one slot destroys the totally reflective path of a portion of the light rays arriving the at least one side surface, and thus the portion of the light rays emits from the at least one side surface.
    Type: Application
    Filed: March 26, 2013
    Publication date: June 26, 2014
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: LI-YING WANG HE
  • Publication number: 20140177260
    Abstract: The disclosure of the present application includes a light pipe assembly having a light pipe with a proximal end, an opposing distal end, a length between the proximal end and the distal end, and a surface, the surface having an emitting portion and an overlay portion, where the light pipe is a material capable of transmitting light with a first refractive index; and a reflective secondary surface having a second refractive index and a width, the reflective secondary surface positioned adjacent the overlay portion of the light pipe, where the first refractive index is greater than the refractive index of air, and the second refractive index is greater than the first refractive index. In at least one embodiment, the reflective secondary surface is a non-metallic material capable of reflecting light. In at least one embodiment, the width of the reflective secondary surface varies along the length of the light pipe.
    Type: Application
    Filed: March 15, 2013
    Publication date: June 26, 2014
    Applicant: Flex-N-Gate Advanced Product Development, LLC
    Inventors: Ronie George, James R. Rhodes, Mike E. Jensen
  • Publication number: 20140177262
    Abstract: A light source includes a light emitting diode (LED) packing structure, a fiber and a light color converting portion. An end of the fiber couples with the LED packing structure. The light color converting portion is arranged at an opposite end of the fiber. The light color converting portion contains phosphor therein. Blue light emitted by the LED package transmits to the light color converting portion via the fiber and excites the phosphor to produce yellow light which mixes with the blue light to generate white light. An LED automobile lamp having the light source is also provided.
    Type: Application
    Filed: June 25, 2013
    Publication date: June 26, 2014
    Inventor: CHIH-CHEN LAI
  • Publication number: 20140177265
    Abstract: An electronic incense censer includes an electronic incense which consists of a light guide for guiding light and a sheath coated on a circumferential periphery of the light guide, a light source arranged at a light incident end of the light guide, and a light emitting portion arranged at a light output end of the light guide. A color of light generated by the light source is adjustable by mixing light beams having different colors, wherein intensities of the light beams are adjustable. The light enters the light guide via the light incident end and reaches the light emitting portion via a guidance of the light guide.
    Type: Application
    Filed: September 5, 2013
    Publication date: June 26, 2014
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: PO-CHOU CHEN
  • Publication number: 20140177263
    Abstract: An electronic censer includes a seat and multiple real incenses and an electronic incense inserted to the seat. The electronic incense includes a light guiding rod, a metal shell enclosing the rod, an LED contacting the rod and a circuit board connected to the LED. Light emitted from the LED transmits through the rod to an outside environment.
    Type: Application
    Filed: July 24, 2013
    Publication date: June 26, 2014
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: CHIH-CHEN LAI
  • Publication number: 20140167617
    Abstract: Light source systems and methods of operating the light source systems are disclosed. A light source system may include a combination of two lighting modules in communication with each other. The lighting modules can operate in concert, in parallel, or as master or slave. A printed circuit board assembly (PCBA) of the light source system includes electrical circuitry to drive a set of light emitting diodes (LEDs). The PCBA can include a communication interface for communication amongst the lighting modules. The PCBA can also include an optical sensor to provide color spectrum feedback to a controller module for self calibration. A master PCBA can receive sensor feedbacks, such as thermal and optical feedbacks from a slave PCBA. The sensor feedbacks can then be used to tune a color spectrum of a slave lighting module including calibrating the slave lighting module.
    Type: Application
    Filed: March 15, 2013
    Publication date: June 19, 2014
    Applicant: Lumenetix, Inc.
    Inventors: Thomas Poliquin, Dustin Cochran, Herman Ferrier, David Bowers, James Kingman
  • Publication number: 20140169028
    Abstract: An exemplary electronic censer includes a censer body, working fluid contained in the censer body, an incense branch, a fog generator, and a guiding tube. The incense includes a light guiding tube, a light source mounted on the light guiding tube, and a fog guiding tube surrounding the light guiding tube and spaced from the light guiding tube to define a chamber between the fog guiding tube and the light guiding tube. The fog generator is received in the censer body and converts the working fluid to fog. The guiding tube guides the fog from the censer body to the chamber to exhaust.
    Type: Application
    Filed: August 8, 2013
    Publication date: June 19, 2014
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: PO-CHOU CHEN
  • Publication number: 20140169026
    Abstract: A linear light module that uses a thermally conductive housing for dissipating heat generated by a lighting source within the housing is described. Light is thermally coupled away from the lighting source via a thermally conductive heating block. The heating block is thermally coupled to a thermally conductive heat pipe that runs along the length of the housing, where the length of the housing is substantially the same length as the linear light module. The housing is extruded to include a channel that runs the length of the housing for holding the heat pipe. Because the housing is long, the heat is easily conducted from the housing.
    Type: Application
    Filed: March 15, 2013
    Publication date: June 19, 2014
    Applicant: Lumenetix, Inc.
    Inventors: Dustin Cochran, Herman Ferrier, Sanjoy Ghose
  • Publication number: 20140169027
    Abstract: A lighting system comprising multiple linear lighting module building blocks is described. A lighting module is designed to emit light in a linear configuration, and multiple lighting modules are concatenated to emit light in a single linear configuration. A mechanical coupling system allows the lighting modules to be inserted into the linear configuration from a direction perpendicular to the linear configuration. The housing of the lighting modules is designed to allow the module to be clipped together in the linear configuration.
    Type: Application
    Filed: March 15, 2013
    Publication date: June 19, 2014
    Applicant: Lumenetix, Inc.
    Inventors: Dustin Cochran, Alan Nottingham
  • Publication number: 20140169025
    Abstract: A linear light module having an optical coupling element and a light pipe is described. The optical coupling element receives light emitted by multiple light emitting diodes (LEDs) having different emission wavelengths and couples the light efficiently to a linear light pipe. The light from the LEDs is efficiently mixed by the optical coupling element and the light pipe to produce a linear light output that is uniform in color and intensity. Diffusers can be used with the optical coupling element and light pipe at various locations to further enhance the uniformity of the emitted light.
    Type: Application
    Filed: March 15, 2013
    Publication date: June 19, 2014
    Applicant: Lumenetix, Inc.
    Inventors: Matthew D. Weaver, Dustin Cochran, Robert Alan Nottingham, Herman Ferrier, Thomas Poliquin, David Bowers, Yuko Nakazawa, James Kingman, Kevin Pelletier, Sanjoy Ghose
  • Patent number: 8746931
    Abstract: Light incoupling structures for lighting applications, such as lightguides, are described herein. The incoupling structures include an optically substantially transparent medium for transporting light emitted by a light source and an optical element including at least one hole in the medium for coupling light together with optional further optical elements. A lighting element includes a light source with related integrated optics.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: June 10, 2014
    Assignee: Modilis Holdings LLC
    Inventor: Kari J. Rinko
  • Patent number: 8746934
    Abstract: A lighting assembly that efficiently collects and accurately directs light with a defined asymmetrical light ray angle distribution onto a nearby target surface. The light with the asymmetrical light ray angle distribution illuminates the target surface with a defined illumination profile. In theatrical and architectural lighting, the defined illumination profile is an even illumination profile on a nearly vertical surface. In street lighting, the defined illumination profile is an even illumination profile on a horizontal surface. The lighting assembly includes an LED and a solid reflector optic having a reflective surface shaped to reflect light from the LED in a way that produces the asymmetrical light ray angle distribution at least in part.
    Type: Grant
    Filed: November 11, 2011
    Date of Patent: June 10, 2014
    Assignee: Rambus Delaware LLC
    Inventor: Brian E. Richardson
  • Patent number: 8746899
    Abstract: A light emitting apparatus includes a first rod integrator and a second rod integrator supported by a support substrate and a light emitting device disposed between the first rod integrator and the second rod integrator. The light emitting device emits a plurality of light beams to be incident on the first rod integrator and a plurality of light beams to be incident on the second rod integrator. Each of the rod integrators has a light incident surface on which the plurality of light beams are incident, a bent portion that changes the propagating direction of the plurality of incident light beams, and a light exiting surface through which the plurality of light beams mixed with each other exit.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: June 10, 2014
    Assignee: Seiko Epson Corporation
    Inventor: Hiroyasu Kaseya
  • Patent number: 8746942
    Abstract: A tubular skylight, comprising a tubular body (2) provided with an inner reflecting surface (3), a light collector (4) mounted to a first end of the tubular body (2) and a light diffuser (6) mounted to a second end of said tubular body (2). The skylight further comprises a source of artificial light (9) external to the tubular body (2) to enable it not to interfere with the natural light, and mounted in the vicinity of the diffuser (6). This artificial-light source (9) is preferably defined by a plurality of LEDs positioned around the diffuser (6) itself.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: June 10, 2014
    Inventor: Gennaro Bracale
  • Patent number: 8740427
    Abstract: The invention relates to a device for optimal coupling of light into a light conductor in an illuminating element in a vehicle rear view device, which comprises a light conductor with a coupling surface. The light conductor is placed at a distance from a TIR lens and a light source of at least one LED. The LED protrudes into a recess of the TIR lens, which includes the LED.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: June 3, 2014
    Assignee: SMR Patents S.a.r.l.
    Inventors: Daniel Fritz, Arne Schmierer
  • Patent number: 8740434
    Abstract: A light guide element, a light source module, and a display are provided. The display includes a display panel and the light source module. The light source module includes a light source and the light guide element, wherein light emitted by the light source is guided toward the display panel by the light guide element. The light guide element includes a plurality sidewalls and a bottom wall. The sidewalls surround the bottom wall and are connected with each other to form a light entering opening, a light exiting opening, and an inner reflection room. Each of the sidewalls and the bottom wall has at least one reflection surface, wherein the reflection surface faces the inner reflection room.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: June 3, 2014
    Assignees: Kinpo Electronics, Inc., Cal-Comp Electronics & Communications Company Limited
    Inventor: Chun-Hsien Cho
  • Patent number: 8740433
    Abstract: A frame-supported vehicle, such as a bicycle or the like, has at least one frame component made of a light diffusing or fluorescent translucent or transparent material to form a leaky light pipe, and at least one light source in light communication with the frame component, whereby light propagates within the frame and is visible from outside the frame by diffusion or fluorescence or a combination thereof. The bicycle is highly visible at night, and may carry logos or other indicia that are enhanced by the background illumination, which may be redirected out of the tube.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: June 3, 2014
    Assignee: Phantom Frames, Inc.
    Inventor: Forrest Smith
  • Patent number: 8743077
    Abstract: The present invention relates to a front light system which can be built with thin film light emitting diodes (LEDs), such as organic light emitting diodes (OLEDs) or electro-luminescent light emitting diodes. The front light system may be built on a thin and flexible substrate and can generate lighting of satisfactory uniformity and with high efficiency. The system also can potentially be inexpensive. The front light system of the present invention is particularly suitable for keymat applications wherein a flexible reflective display on top of a touch sensitive surface or device, is used as an output device.
    Type: Grant
    Filed: July 29, 2008
    Date of Patent: June 3, 2014
    Assignee: SiPix Imaging, Inc.
    Inventor: Robert A. Sprague
  • Publication number: 20140146558
    Abstract: A light source assembly includes a light emitting diode and a light guide stick. The light guide stick includes an incident surface, a rear surface opposite to the incident surface, and a side surface connected between the incident surface and the rear surface. The light emitting diode faces the incident surface for emitting light to the incident surface. The light guide stick includes a plane passing through its center axis. The side surface includes a light reflection part and a light emission part. A projection of the light emission part on the plane is substantially a rectangle. Long sides of the rectangle are parallel to the center axis. The light reflection part is coated with a reflection layer.
    Type: Application
    Filed: April 18, 2013
    Publication date: May 29, 2014
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: PO-CHOU CHEN
  • Patent number: 8733982
    Abstract: An optical system is disclosed that uses an LED light source. The light output is coupled to an optic element formed from a material with a high refractive index. The coupling of the light to the high index material significantly reduces the cone angle of the light. The system is very efficient in that nearly all the light generated by the LED is directed to the intended subject.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: May 27, 2014
    Assignee: Rambus Delaware LLC
    Inventor: Brian Edward Richardson
  • Patent number: 8733995
    Abstract: An objective is to provide a light source device having a light emission source such as a semiconductor laser (LD), an LED and a lamp, and an optical part such as a lens and a fiber for transmitting, transferring and light-focusing, in which, by controlling the amount of sulfate ions inside the device at a low level, adhesion of ammonium sulfate to the optical part can be prevented. The light source device includes a light source for emitting light, an optical part for processing light emitted from the light source, and a housing in which the optical part is housed, or to which the optical part is mounted, and the housing is formed by machining material that includes no sulfur component, and the material is exposed on the surface thereof.
    Type: Grant
    Filed: August 17, 2010
    Date of Patent: May 27, 2014
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yukio Sato, Mitoru Yabe, Toru Yoshihara, Yasuyuki Nakagawa, Hiroshi Kurokawa
  • Publication number: 20140140088
    Abstract: A device for creating dynamic light effects includes an optical fiber with at least two light sources (, which feed light into the optical fiber, wherein the light from the light sources is mixed in the optical fiber in such a manner that a variation of color is identifiable in the optical fiber, and wherein the light sources can be controlled in such a manner that a dynamically changing color distribution is obtained in the optical fiber. A related process is also disclosed.
    Type: Application
    Filed: November 11, 2013
    Publication date: May 22, 2014
    Inventor: Jürgen Griebel
  • Publication number: 20140140089
    Abstract: A lighting device comprises a clear acrylic rod provided with a diffusive reflective strip along one side. Light is emitted into the rod by way of an LED provided at one end of the rod. Most of this light travels along the rod having one or more total internal reflection off the sides until it encounters the reflective strip. At this point, the light is diffusely reflected back across the rod and thereby provides a diffuse beam of light in a desired direction for use in illumination. In order to prevent light emitted from the LED directly exiting the rod and thereby creating a potential hazard, side guards are provided. The extent of the side guards is selected such that all rays a emitted directly from the LED are blocked.
    Type: Application
    Filed: June 20, 2012
    Publication date: May 22, 2014
    Inventor: Morton Graham
  • Patent number: 8727591
    Abstract: Disclosed are a light emitting device and a light emitting element that can decrease fabrication difficulties, while improving lighting efficiency and controlling the distribution of intensity that occurs in the emitted light. A light emitting device comprises a rod-shaped light guide, an LED that inputs light to the light guide, and a prism that changes the direction of light input from the lengthwise end of the light guide, and emits redirected light from a light exit surface that is disposed opposite the prism. The light emitting device is constituted so that an input lens is formed at the lengthwise end of the light guide as a parallel light forming body to make light exiting from the LED toward the light guide nearly parallel light, and the LED is shifted from the center axis of the light guide toward the side closer to the prism, or toward the side away from the prism, and thus said nearly parallel light is directed to the exit surface of the light guide or to the prism.
    Type: Grant
    Filed: February 16, 2010
    Date of Patent: May 20, 2014
    Assignees: Nittoh Kogaku K.K.
    Inventor: Keiichi Mochizuki
  • Publication number: 20140133172
    Abstract: The invention relates to a light-output device (1; 10; 30) controllable to provide different light-output functions. The light-output device comprises a light-source arrangement (12; 31) configured to emit light; and a light-guiding system (10; 32) arranged to receive the light and configured to guide the light to at least one light-output surface of the light-guiding system. The light-guiding system (10; 32) comprises at least a first light-guide (11b; 37) and a second light-guide (11a; 40, 41); and the light-guiding system (10; 32) is movable relative to the light-source arrangement (12; 31) between at least a first position where light output by the light-source arrangement is guided by the first light-guide (11b; 37) to provide a first light-output function, and a second position where light output by the light-source arrangement is guided by the second light-guide (11a; 40, 41) to provide a second light-out put function, different from the first light-output function.
    Type: Application
    Filed: March 26, 2012
    Publication date: May 15, 2014
    Applicant: KONINKLIJKE PHILIPS N.V.
    Inventors: Michel Cornelis Josephus Marie Vissenberg, Ramon Pascal van Gorkom, Peter Johannes Martinus Bukkems, Mark Johannes Antonius Verhoeven, Andreas Aloysius Henricus Duijmelink, Monica Antonia Maria De Wilt, Richard Josephus Arnoldus Maria Foederer
  • Patent number: 8721152
    Abstract: In one aspect, the present invention provides light emitting devices, including light fixtures and luminaires. In some embodiments, a light emitting device comprises at least one light source, a lightguide operable to receive light from the at least one light source at a first location on the lightguide, at least one light extraction region optically coupled to the lightguide and a substantially non-scattering region along a portion of the lightguide.
    Type: Grant
    Filed: May 3, 2010
    Date of Patent: May 13, 2014
    Assignees: ABL IP Holding LLC, Fusion Optix, Inc.
    Inventors: Zane Coleman, John X Zhang, Peter Yi Yan Ngai, Frank Friedman, James M Young
  • Patent number: 8723424
    Abstract: A light assembly includes a light source circuit board and a plurality of light-emitting diodes disposed on the light source circuit board. A plurality of light pipes axially extends from and adjacent to each light-emitting diode. Each light pipe has a respective first end adjacent to the plurality of light-emitting diodes and a second end opposite to the light-emitting diodes. The plurality of light pipes communicates light from the light-emitting diodes therethrough and defines a cavity therebetween. A plurality of thermal vanes forms a heat sink for removing heat from the light-emitting diodes. The plurality of thermal vanes extend adjacent to the plurality of light pipes. A driver circuit board is disposed within the cavity.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: May 13, 2014
    Assignee: eLumigen LLC
    Inventors: Mahendra Dassanayake, Gennaro Fedele, James A. Karchon, Alles Hiranthini
  • Patent number: 8723426
    Abstract: A system may include an LED array, an optical plane, optics, a sensor and a controller. The LED array is configured to generate LED light. The optical plane has a plurality of scattering features and with a mixing chamber. The optics is configured to direct the LED light to the optical plane. The plurality of scattering features are configured to reflect a sampled portion of the LED light into the mixing chamber. The mixing chamber is configured to mix the sampled portion of the LED light. The sensor is configured to sense the sampled portion of the LED light received from the mixing chamber. The controller is connected to the sensor and configured to control the LED array using the sensed, sampled portion of the LED light received from the mixing chamber.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: May 13, 2014
    Assignee: Prism Projection, Inc.
    Inventor: Garrett J. Young
  • Publication number: 20140126234
    Abstract: The disclosed embodiments relate to a light guide (100) and a luminaire (700) including such a light guide (100). The light guide (100) guides light emitted in a first direction (500) from a light source (200) comprising at least one light emitting diode (210). The light guide (100) directs a major part of the light in a second direction (600), wherein the first direction (500) is not equal to the second direction (600). The light guide (100) comprises an upper part (110) having a shape of a cone, and a center axis (120) of the upper part (110) is in the first direction (500). The light guide (100) can be used with reflectors (800) that have originally been manufactured for use with high intensity discharge lamps or halogen lamps but because of the light guide (100), the reflectors (800) can be used together with light sources (200) in the form of at least one light emitting diode (210).
    Type: Application
    Filed: June 29, 2012
    Publication date: May 8, 2014
    Applicant: KONINKLIJKE PHILIPS N.V.
    Inventors: Merijn Keser, Marco Andreas Jacobus Van As, Frank Walterus Franciscus Marie Van Kempen