Light Emitting Diode (led) Patents (Class 362/555)
  • 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
  • Publication number: 20140126235
    Abstract: A luminaire module includes at least one light-emitting element (LEE); a light guide (LG) extending in a first direction from a first end of LG to a second end of LG to receive at the first end light emitted by the LEE and configured to guide the light to the second end; and an optical extractor (OE) optically coupled to LG at the second end to receive light from the LEE guided from the first end to the second end of LG. OE includes a first interface configured to reflect a first portion of the light exiting the LG and transmit a second portion of the light exiting the LG so that the second portion of the light exits OE to an ambient environment in the first direction, and a second interface configured to transmit light incident thereon to the ambient environment in a direction different from the first direction.
    Type: Application
    Filed: January 10, 2014
    Publication date: May 8, 2014
    Applicant: Quarkstar LLC
    Inventors: Ingo Speier, Wilson Dau, Robert C. Gardner, George Lerman, Louis Lerman, Christopher H. Lowery, Brian D. Ogonowsky, George E. Smith, Robert V. Steele, Jacqueline Teng, Allan Brent York
  • Patent number: 8714798
    Abstract: An illumination module includes a light bar, an LED assembly, a positioning member, a sleeve and a lamp receptacle. The light bar has a first end and a second end opposite the first end. A microstructure layer or a reflective layer is formed on the light bar, and a positioning pillar is formed on an outer side of the light bar. The emitting light of the LED assembly is diffused by the microstructure layer or reflected by the reflective layer to spread over the entire light bar. The positioning member, the sleeve, the LED assembly or the lamp receptacle has at least one guide slot that engages with the positioning pillar of the light bar.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: May 6, 2014
    Assignees: Dongguan Masstop Liquid Crystal Display Co., Ltd., Wintek Corporation
    Inventors: Chia-Ta Chang, Ming-Hsi Chiang, Zhan-Wei Qiu, Hsiu-Ping Lee, Kuo-Jui Huang, Zhi-Ting Ye
  • Patent number: 8714784
    Abstract: An LED lamp including a light guide/light pipe, and a method of reflecting light using same, are disclosed. The LED lamp includes a transparent light pipe enclosed in an envelope, where the light pipe has a lower section and an upper section. The lamp also includes an LED in a recess at a lower end of the lower section, and a reflector formed by an indentation in an upper end of the upper section. The lower section may be a compound parabolic concentrator, and the upper section may be a tapered cylinder. The lower section of the light pipe collects light emitted from the LED, the upper section of the light pipe directs the collected light onto the reflector, and the reflector reflects the directed light in a radial direction.
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: May 6, 2014
    Assignee: OSRAM SYLVANIA Inc.
    Inventor: Hong Luo
  • Patent number: 8714799
    Abstract: A projection assembly is arranged to be added onto or built into at least one LED-unit or other light-unit of an illuminated object that has more than one LED or other light source to cause the object to be illuminated and show the object's design or appearance while also offering illumination to people. The illuminated object may include all kinds of seasonal lighting, regular light fixtures, track lights, desktop lights, and battery operated lights having more than one light-unit or LED-unit.
    Type: Grant
    Filed: June 27, 2012
    Date of Patent: May 6, 2014
    Inventor: Tseng-Lu Chien
  • Publication number: 20140119045
    Abstract: A light-emitting device includes a light source, a panel and a light guiding structure. The light guiding structure includes a first light guiding tunnel and a second light guiding tunnel. The first light guiding tunnel includes a first end and a second end. A first opening is formed at the first end and close to the light source. The second light guiding tunnel includes a first end and a second end. The first end of the second light guiding tunnel communicates with the second end of the first light guiding tunnel. A diameter of the second end of the second light guiding tunnel is greater than a diameter of the first end of the second light guiding tunnel. A second opening is formed at the second end of the second light guiding tunnel. A diameter of the second opening is greater than a diameter of the first opening.
    Type: Application
    Filed: July 25, 2013
    Publication date: May 1, 2014
    Applicant: Wistron Corporation
    Inventors: Kuang-Wen Chen, Yu-Hsin Huang, Fu-Chien Chen, Chun-Chiang Lai
  • Publication number: 20140119046
    Abstract: There is provided an arrangement for light balancing. The arrangement provides light balancing and robust flux feedback and comprises a light source array, a plurality of light sources arranged as a plurality of strings of individual light emitting diodes, at least one light guide structure, and at least one optical sensor. The arrangement provides feedback relating to the optical contribution for each one of the plurality of strings of individual light emitting diodes and is thereby maintaining the emitted light at a balanced level.
    Type: Application
    Filed: June 6, 2012
    Publication date: May 1, 2014
    Applicant: KONINKLIJKE PHILIPS N.V.
    Inventors: Ralph Kurt, Stefan Marcus Verbrugh, Jorrit Ernst De Vries, Henricus Marius Joseph Maria Kahlman
  • Patent number: 8708499
    Abstract: An illuminating device includes: light source (101); light guiding means (102) where light from light (101) is supplied to one end surface, and light incident from the one end surface is propagated inside to exit from the other end surface; illuminating optical systems (103 to 107) that form an optical image formed on the other end surface of light guiding means (102) on display element (22); reflective polarizing plate (109) that is located between illuminating optical systems (103 to 107) and display element (12), and transmits first polarized light while reflecting second polarized light whose polarized state is different from the first polarized light toward illuminating optical systems (103 to 107); phase plate (108) located between light guiding means (102) and reflective polarizing plate (109); and reflecting means (21) that is located on a side opposite the one end surface of light guiding means (102), and reflects, among lights by reflective polarizing plate (109), light incident via phase plate (108
    Type: Grant
    Filed: September 2, 2009
    Date of Patent: April 29, 2014
    Assignee: NEC Display Solutions, Ltd.
    Inventor: Atsushi Katou
  • Patent number: 8702292
    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: Grant
    Filed: September 22, 2011
    Date of Patent: April 22, 2014
    Assignee: TerraLUX, Inc.
    Inventor: Anthony Catalano
  • Publication number: 20140104867
    Abstract: The present invention provides a LED lamp with high brightness. a uniform light-emitting surface and good heat dissipation. The LED lamp includes a LED strip and a cylindrical light guide body connected to the LED strip, wherein light emitted from the LED strip irradiates towards the light guide body and exits via the surface of the light guide body.
    Type: Application
    Filed: October 11, 2013
    Publication date: April 17, 2014
    Applicants: Beijing BOE Chatani Electronics Co. Ltd., BOE Technology Group Co., Ltd.
    Inventor: Yingli Meng
  • Publication number: 20140104868
    Abstract: An illumination system is described including a plurality of illumination devices, each device including (i) light-emitting elements (LEEs) arranged along a corresponding first axis; (ii) an optical extractor extending along a corresponding longitudinal axis parallel to the first axis; and (iii) a light guide positioned to receive at a first end of the light guide light emitted by the LEEs and guide it to a second end of the light guide. The optical extractor is optically coupled to the light guide at the second end and is shaped to redirect the light guided by the light guide into a range of angles on either side of the light guide. The illumination devices are connected to each other to form a polygon such that the longitudinal axes of the connected illumination devices lie in a common plane.
    Type: Application
    Filed: December 24, 2013
    Publication date: April 17, 2014
    Applicant: Quarkstar LLC
    Inventors: Ingo Speier, Wilson Dau, Robert C. Gardner, George Lerman, Louis Lerman, Christopher H. Lowery, Brian D. Ogonowsky, George E. Smith, Robert V. Steele, Jacqueline Teng, Allan Brent York
  • Publication number: 20140098560
    Abstract: In various embodiments of the invention, a unique construction for Light Emitting Diodes (LEDs) with at least one luminescent rod and extracting optical elements used to generate a variety of high brightness light sources with different emission spectra. In an embodiment of the invention, forced air cooling is used to cool the luminescent rod. In an embodiment of the invention, totally internal reflected light can be redirected outward and refocused. In another embodiment of the invention, light emitted by the luminescent rod is out-coupled for use in a variety of applications.
    Type: Application
    Filed: December 11, 2013
    Publication date: April 10, 2014
    Applicant: Lumencor, Inc.
    Inventor: THOMAS J. BRUKILACCHIO
  • Publication number: 20140098559
    Abstract: A luminous decoration assembly for automobile contains a decorating member, a stripped light shell, a flexible guiding strap, and at least one light-emitting element. The stripped light shell is connected with the decorating member. The flexible guiding strap is retained in the stripped light shell. The at least one light-emitting element is disposed on one end of the flexible guiding strap so as to project light to one end of the flexible guiding strap, and the light from the flexible guiding strap emits to the stripped light shell.
    Type: Application
    Filed: August 29, 2013
    Publication date: April 10, 2014
    Applicant: Hon Yu Auto Parts Co., Ltd.
    Inventor: Yin-Teng HSIAO
  • Patent number: 8690383
    Abstract: A light source channel is described. The light source channel includes an extrusion forming a channel having an open length and a light source positioned within the channel. A light transfer medium is positioned above the light source and covers the open length of the channel. The light transfer medium has a cross section. A method embodiment according to the present invention produces a light source channel by installing a light engine within a channel of an extrusion and covering the channel length with a light transfer medium above the light engine. The light transfer medium has a cross-section.
    Type: Grant
    Filed: June 24, 2013
    Date of Patent: April 8, 2014
    Assignee: Integrated Illumination Systesm, Inc.
    Inventors: Thomas L. Zampini, II, Mark A. Zampini
  • Publication number: 20140093948
    Abstract: A light source module for use in an analytical instrument for analyzing at least one sample is disclosed. The light source module includes at least one light-emitting diode and at least one light guiding rod adapted to guide and shape light emitted by the light-emitting diode. The light source module further includes at least one memory device. The memory device has stored therein at least one driving parameter set, for driving the light-emitting diode in such a way that desired emission properties of light provided by the light source module are generated.
    Type: Application
    Filed: September 30, 2013
    Publication date: April 3, 2014
    Applicant: Roche Molecular Systems, Inc.
    Inventors: Fabian Durrer, Alan Furlan, Joachim Wietzorrek
  • Publication number: 20140092621
    Abstract: A light-emitting diode (LED) apparatus comprises a substrate, a first layer formed over at least a portion of the substrate, an active layer formed over at least a portion of the first layer, a second layer formed over at least a portion of the active layer, and at least one waveguide formed below the substrate. A first portion of light from the LED is directed in a first direction and a second portion of light from the LED is directed in a second direction via the waveguide, the second direction being different than the first direction. The apparatus may further comprise a shutter formed at least one of above and below the waveguide, the shutter being adjustable to control an amount of light entering or exiting the waveguide.
    Type: Application
    Filed: September 28, 2012
    Publication date: April 3, 2014
    Applicant: LSI Corporation
    Inventor: Joseph M. Freund
  • Publication number: 20140092622
    Abstract: The invention relates to a lighting strip (100) for mounting in or on a panel support element (210) of a modular panel system (200). The lighting strip comprises an optical waveguide (120) having a tapered portion increasing in thickness from the center towards a first side of the lighting strip. The lighting strip also comprises a first plurality of solid state lighting elements (110) placed along the first side of the lighting strip, facing said tapered portion (120). The lighting strip further comprises a reflective surface (140) and a light output surface comprising a glare reducing member (130), each extending between the first side and a second side opposite to the first side. The optical waveguide is located between the reflective surface and the glare reducing member. A lighting system, panel support element (210) and modular panel system (200) including such a lighting strip (100) are also disclosed.
    Type: Application
    Filed: June 6, 2012
    Publication date: April 3, 2014
    Applicant: KONINKLIJKE PHILIPS N.V.
    Inventors: Fetze Pijlman, Hendrikus Hubertus Petrus Gommans, Wilhelmus Petrus Adrianus Johannus Michiels, Jochen Renaat Van Gheluwe, Cornelis Gerardus Maria De Haas, Menno Van Baardwijk
  • Patent number: 8684765
    Abstract: A connector assembly that includes a receptacle connector and a light pipe. The connector is configured to receive a removable device inserted along a longitudinal axis. The connector has a side surface that extends along a plane defined by the longitudinal axis and a vertical axis that is perpendicular to the longitudinal axis. The connector includes a ledge and a positive stop that project laterally outward from the side surface. The ledge has a ledge surface that joins the side surface. The light pipe extends substantially along the longitudinal axis. The light pipe has an inward-facing surface that is substantially flat throughout and abuts the side surface of the connector. The light pipe rests upon the ledge surface and the positive stop is positioned on the side surface to block the light pipe from moving in at least one direction along the longitudinal axis.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: April 1, 2014
    Assignee: Tyco Electronics Corporation
    Inventors: Michael Eugene Shirk, Michael J. Phillips, David S. Szczesny
  • Patent number: 8687109
    Abstract: An image capturing device employing as illumination source(s) (flash apparatus(es)) a plurality of light emitting diodes emitting light of different colors; wherein such light emitting diodes are respectively made to emit light in pulsed fashion in turn by emitted color during exposure time(s). Furthermore, during exposure time(s), such light emitting diodes may be made to sequentially emit light in pulsed fashion in turn by emitted color, and/or such light emitting diodes may be made to sequentially emit light in pulsed fashion in turn by emitted color over multiple iterations.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: April 1, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Eiji Kametani, Yoshihiko Yamamoto, Hiroshi Chikugawa
  • Publication number: 20140085922
    Abstract: An electrical wiring device, such as a GFCI duplex receptacle, includes a light source for lighting a selected area and a photo sensor to detect ambient light conditions and to actuate a light source when the ambient light conditions are below a predetermined level. The light source is preferably at least two LEDs having an associated light conducting member functioning as a light pipe that extends between the respective LED and the front face of the electrical wiring device. Each light conducting member has an inclined face extending through an opening in the cover of the wiring device to project a light beam at an inclined angle with respect to the front face of the wiring device. The light conducting members are independently rotatably mounted in the wiring device so that the user can manually rotated the light conducting member to direct the light beam to a selected area.
    Type: Application
    Filed: September 16, 2013
    Publication date: March 27, 2014
    Inventors: Kenny PADRO, Mark C. VIKLUND
  • Patent number: 8681071
    Abstract: A lighted multiple panel display unit capable of providing a variety of visual effects has layered panels made of light transmitting materials. At least two of the layered panels are spaced apart such that there is a gap between them. Each of the panels comprising a relief. Multiple light sources illuminate at least a portion of the relief of each panel, the light sources being actuated in a predetermined sequence such that the reliefs produce a visual effect. Visual effects which may be produced include a color blending effect, a three-dimensional appearance effect, a morphing effect and a color fading effect.
    Type: Grant
    Filed: July 20, 2006
    Date of Patent: March 25, 2014
    Inventor: Daniel Deutsch
  • Patent number: 8680753
    Abstract: A low voltage spot light for use as substitute for a mains voltage PAR38 reflector lamp which comprises a chamber for LED clusters with reflectors and an enclosure for an electronic power supply to step down the incoming mains voltage. The LED clusters are mounted in the central area of the heat sink within the chamber and are accessible via a removable window. The LED chamber is weatherproof ventilated to prevent condensation. The spotlight is designed for outdoor use in conjunction with the PAR38 style weather proof lamp holder but can be operated indoors from any standard E 27 lamp holder.
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: March 25, 2014
    Inventors: Walter Oechsle, Manfred Oechsle
  • Publication number: 20140078771
    Abstract: A light device includes a light transmission tube, a heat sink, a light bar, and two end caps. The light transmission tube has two securing parts. Each of the securing parts includes a first rib and a second rib, and a guide-track groove is formed between the first and second ribs. The heat sink includes a first plate body and a second plate body. The first plate body is curved and abutted on an inner wall of the light transmission tube, and the second plate body is curved toward the first plate body. Two terminals of the first plate body are connected to two terminals of the second plate body to form two connecting parts for coupling with the guide-track grooves. The light bar is disposed on the second plate body. The end caps are respectively connected to two terminals of the light transmission tube.
    Type: Application
    Filed: March 18, 2013
    Publication date: March 20, 2014
    Applicant: LEXTAR ELECTRONICS CORPORATION
    Inventors: Chun-Kuang Chen, Chia-Lun Tsai, Fu-Tse Tang
  • Publication number: 20140076864
    Abstract: A boroscope includes a working head having first and second ends. A first optical fibre extends through the boroscope to a position between the first and second ends. A second optical fibre extends through the boroscope to the second end of the working head. A laser optical fibre extends through the boroscope. At least one lens is arranged between the first end and the second end of the working head and a mirror is gimballed to the second end of the working head. The laser optical fibre directs laser light transmitted through the laser optical fibre onto the lens and then onto the mirror. A first LED is arranged at a position between the first end and the second end of the working head and a second LED is arranged at the second end of the working head and an actuator devices adjust the position of the mirror.
    Type: Application
    Filed: August 15, 2013
    Publication date: March 20, 2014
    Applicant: ROLLS-ROYCE PLC
    Inventors: James KELL, Clive GRAFTON-REED, Dragos AXINTE
  • Publication number: 20140078773
    Abstract: An illuminated vest comprises an enclosure including a light-emitting diode and control electronics that control the light emitting diode. Coupled to the enclosure is a belt made of passive material. A limb loop is created by an optical fiber structure that includes a first end and a second end. The light-emitting diode is optically coupled to the first end of the fiber optic structure. The optical fiber structure is also independent of passive material, such that the optical fiber structure forms a structure for the vest.
    Type: Application
    Filed: September 11, 2013
    Publication date: March 20, 2014
    Applicant: NOXGEAR, LLC
    Inventors: Simon Curran, Thomas Walters
  • Publication number: 20140078772
    Abstract: LED lighting devices are provided that include two optical waveguides and at least one LED in an intermediate region between end faces of the optical waveguides so that radiation from the LED is coupled into the optical waveguides through the end faces. A de-coupler is on outer circumferential surface regions of each of the two separate optical waveguides. The de-coupler reflects the radiation guided in the optical waveguides so that the radiation passes through the optical waveguides and is coupled out of the optical waveguides laterally. The intermediate region has a length that is selected so that a brightness difference, measured perpendicular to an axis of the optical waveguides in the center of the intermediate region, at a distance of 10 mm perpendicular to the axis of the optical waveguides is at most 25% based on a maximum value of brightness along the axis of the optical waveguides.
    Type: Application
    Filed: January 30, 2012
    Publication date: March 20, 2014
    Applicant: SCHOTT AG
    Inventors: Ekkehard Gaydoul, Armin Plichta, Juergen Meinl, Bjoern Bleisinger, Martin Cramer, Thomas Reichert, Marc Timon Sprzagala, Sandra Mattheis
  • Publication number: 20140063837
    Abstract: An LED lighting system comprises an LED assembly for emitting light. A bulb comprises an enclosure and an optic element in the enclosure for receiving the light from the LED assembly and transmitting the light from the enclosure. An Edison-style or other traditional-style base is provided on the bulb for connecting the bulb to an Edison-style or other traditional-style socket.
    Type: Application
    Filed: September 4, 2012
    Publication date: March 6, 2014
    Applicant: CREE, INC.
    Inventor: John R. Rowlette, JR.
  • Patent number: 8664675
    Abstract: A multichip light-emitting diode (LED) includes a reflective cup, a plurality of light-emitting chips and a package. The light-emitting chips are disposed in the reflective cup and emit light when driven. The package is disposed in the reflective cup and covers the light-emitting chips. The package further has a plurality of lenses corresponding to the light-emitting chips one by one. The lenses refract light emitted by the corresponding light-emitting chips, respectively. An extrinsic light efficiency of the multichip is increased through the design of the multichip LED.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: March 4, 2014
    Assignee: Industrial Technology Research Institute
    Inventors: Tien-Fu Huang, Shih-Hao Hua
  • Patent number: 8664683
    Abstract: A method for providing, on a carrier (40), an insulative spacer layer (26) which is patterned such that a cavity (27) is formed which enables connection of an optical semiconductor element (41) to the intended conductor structure (22) when placed inside the cavity (27). The cavity (27) is formed such that it, through its shape, extension and/or depth, accurately defines a location of an optical element (45; 61) in relation to the optical semiconductor element (41). Through the provision of such a patterned insulative spacer layer, compact and cost-efficient optical semiconductor devices can be mass-produced based on such a carrier without the need for prolonged development or acquisition of new and expensive manufacturing equipment.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: March 4, 2014
    Assignee: Koninklijke Philips N.V.
    Inventor: Gerardus Henricus Franciscus Willebrordus Steenbruggen
  • Patent number: 8657476
    Abstract: An elongated LED lighting arrangement comprises an elongated light pipe with homogeneous optical material between first and second ends. In an exemplary embodiment, an LED provides blue light to the light pipe via a first dichroic mirror tuned to pass blue light. Down-converting means on sidewall of the light pipe, tuned to receive blue light, absorbs blue light from the LED and to emit lower-energy light outside of the light pipe at respectively higher wavelengths. Light-extracting means on the sidewall extract from the light pipe some blue light without changing the wavelengths of the foregoing light. Light from the down-converting means and the light-extracting means are combined to provide a composite color. The first dichroic mirror receives some light emitted by the down-converting means and reflects back into the light pipe more than 80 percent of the light received by the mirror.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: February 25, 2014
    Assignee: Energy Focus, Inc.
    Inventors: Roger F. Buelow, Laszlo A. Takacs, Blair L. Unger
  • Publication number: 20140049978
    Abstract: An LED-based photolithographic illuminator with high collection efficiency is disclosed. The illuminator utilizes an array of LEDs, wherein each LED has an LED die and a heat sink. The LED dies are imaged onto the input end of a homogenizer rod to substantially cover the input end without inclusion of the non-light-emitting heat sink sections of the LED. A microlens array is used to image the LED dies. The collection efficiency of the illuminator is better than 50% and the illumination uniformity at the output end of the light homogenizer is within +/?2%.
    Type: Application
    Filed: August 17, 2012
    Publication date: February 20, 2014
    Inventors: David G. Stites, Andrew M. Hawryluk
  • Patent number: 8651679
    Abstract: A display device includes a first light guide member provided with a first reflecting surface formed at its first end to reflect light emitted by a light source; a second light guide member provided with a penetrating hole in which the first light guide member is intended to be inserted and a second reflecting surface formed at its first end to reflect the light; a first pointer and a second pointer fixed to the first end of the first light guide member and the first end of the second light guide member to be illuminated by the light reflected by the first reflection surface and the second reflection surface, respectively, and a driving member configured to separately rotate the first light guide member and the second light guide member around a same rotation axis with the first pointer and the second pointer, respectively.
    Type: Grant
    Filed: March 14, 2012
    Date of Patent: February 18, 2014
    Assignee: Jeco Co., Ltd.
    Inventors: Hiroyuki Shimane, Hirohisa Tanaka, Akio Ito, Kazuya Sato
  • Publication number: 20140043845
    Abstract: A light-emitting apparatus including a light guide unit, at least one light-emitting component, and a wavelength conversion unit is provided. The light guide unit has a first end and a second end opposite to the first end. The light-emitting component is disposed on the first end and emits a first light. The wavelength conversion unit is disposed on the second end. The light guide unit guides the first light emitted by the light-emitting component from the first end to the second end, and the wavelength conversion unit converts the first light into the second light, wherein the wavelength of the first light is different from the wavelength of the second light.
    Type: Application
    Filed: March 12, 2013
    Publication date: February 13, 2014
    Applicant: Genesis Photonics Inc.
    Inventors: Cheng-Yen Chen, Kuan-Wen Chen
  • Publication number: 20140027690
    Abstract: In one aspect, a lighted tip for attachment to a flexible rod comprises a tip body having proximal and distal ends, a mechanical connector at the proximal end, a lens connected to the distal end, a light source that emits light through the lens, and a holder coupled to the light source and the lens. A circuit is completed or interrupted as the holder moves in relation to the tip body, thereby switching the light source on or off. In another aspect, a lighted tip for attachment to a flexible rod comprises a lens forming a distal end of the lighted tip. The lens is cylindrical over at least some of its length, and the tip further includes a light source at least partially within the cylindrical lens portion and a mechanical connector at a proximal end if the lighted tip, for connecting the tip to the flexible rod.
    Type: Application
    Filed: September 27, 2013
    Publication date: January 30, 2014
    Applicant: Labor Saving Devices, Inc.
    Inventors: James Forthman, David G. Morgan, John E. Phillips, Roy Bowling
  • Publication number: 20140022811
    Abstract: Aspects of the disclosure provide a door handle assembly used in a vehicle door having an illumination module and illumination source that directs light in a first direction and a second direction using a pair of light pipes. The door handle from the door handle assembly includes a first illumination aperture oriented in the first direction and a second illumination aperture oriented in the second direction. As the illumination source generates light, the first light pipe receives a first portion of light and directs it toward a first illumination surface and the first illumination aperture in the first direction. By molding the second light pipe around the first light pipe, remaining light is captured from the illumination source as a second portion of light. The second portion of light reflects along the interior surfaces of the second light pipe towards the second illumination surface oriented in the second direction.
    Type: Application
    Filed: September 26, 2012
    Publication date: January 23, 2014
    Inventors: David Wheeler, Brenda Cucci, Adam S. Kilgore, Daryl Zalan
  • Patent number: 8632216
    Abstract: One embodiment of an optical system described herein comprises a source including light emitting diode chip and a homogenizer. One embodiment of the homogenizer comprises an entrance face positioned to receive light from the source, the entrance face having a first shape, a body configured to homogenize the received light and an exit face, the exit face parallel to the primary emitting face of the source. The homogenizer can emit light with a half angle that is at least 80% of the half angle of light entering the homogenizer.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: January 21, 2014
    Assignee: Illumitex, Inc.
    Inventors: Dung T. Duong, Nicholas Flynn Jameson
  • Patent number: 8632234
    Abstract: Pathway and landscape lights, in particular to devices, apparatus, systems and methods of using ground directed pathway and landscape lights with a single or perimeter spaced apart LED (light emitting diode) light sources on a disc mount, with or without an optical fiber arranged in a ring pattern about a perimeter edge of the mount. A light shade lens can have an upper end attached to the lower face of the disc mount, and a bottom end attached to a ground engaging post, so the light emitted from the mount is directed in a 360 degree outwardly expanding direction expanding outward on the ground surface where the ground engaging post is in the center of the 360 degree expanding illumination. A low voltage power source can be used. Alternatively, the light can be solar powered. The light forms uniform light beam emissions without shadow spots effects.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: January 21, 2014
    Assignee: Chien Luen Industries Co., Ltd., Inc.
    Inventors: Tien S. Lowe, Mark Velutini, Eli E. Rivera, Joe Zhou, Francisco Biancuzzo
  • Patent number: 8628228
    Abstract: A light assembly is provided. The light assembly has a housing having a first end segment carrying an activation mechanism, a second end segment, and a light emitting segment connecting the first and second end segments. A light source is provided in communication with an activation device and arranged to illuminate the light emitting segment. An attachment assembly is arranged for attachment of the light assembly to a carrying device. The attachment assembly is formed by a first receptor and a second receptor, the first and second receptors adapted to receive an attachment device. The attachment assembly may also be formed by a first magnet arranged to attract to the carrying device and a second magnet arranged to attract to the carrying device.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: January 14, 2014
    Inventor: Benton Lundy
  • Patent number: 8622571
    Abstract: A LED tube (41) comprises one or more LED components (34) and a current control unit (33) installed therein. Both ends of the LED tube (41) are provided with a contact pin pair (37, 38, 39, 40) for connecting the LED tube mechanically and electrically to tube holders of a fluorescent tube lighting fixture. The LED tube includes a safety unit (42, 43, S1) arranged to prevent a voltage from passing through the LED tube (41) from its one end to the other end thereof until at both ends of the LED tube, a voltage (U1, U2) fed from the corresponding tube holder of the lighting fixture to the contact pin pair (37, 38, 39, 40) has been detected separately.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: January 7, 2014
    Assignee: Teknoware Oy
    Inventors: Yrjö Hartikka, Jouko Kuisma
  • Publication number: 20140003082
    Abstract: A lighting apparatus for illuminating a license plate includes an LED element and an appliqué. The appliqué has an exterior surface, which is substantially opaque, facing away from the license plate and an interior surface facing toward the license plate. A light guide is disposed between the exterior surface and the license plate, and has a first end with a first optic formed thereon. The light guide carries light from the LED element to the first optic and casts light onto the license plate.
    Type: Application
    Filed: June 27, 2012
    Publication date: January 2, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Jeffrey Jose' Calderas
  • Publication number: 20140003081
    Abstract: An optical fiber (500) illuminates the bore (520) of a capillary tube (515) that is used for separating chemicals by capillary electrophoresis (CE). The fiber terminates in either two sloped regions (525) and a curved region (530) or two sloped regions (705) and a flat region (700). Light from these regions is focused on the bore of the capillary tube. Since the fiber is sized to illuminate the core of a CE capillary, it is larger than fibers used in telecommunications and its sloped regions are at angles that would be unsuitable for use in telecommunications. The relatively large diameter of the capillary permits efficient use of a light source (905).
    Type: Application
    Filed: June 27, 2012
    Publication date: January 2, 2014
    Inventor: Tiansong Wang
  • Patent number: 8616715
    Abstract: A remote light wavelength conversion device is provided for converting a source light emitted from a light source within a source wavelength range into a converted light within a converted wavelength range. The remote light wavelength conversion device may include a waveguide and a color conversion optic. The waveguide may include a first end and a second end and the color conversion optic may be adjacently located at the second end of the waveguide. The color conversion optic may convert the source light transmitted through the waveguide to the converted light. The waveguide may be a fiber having a core diameter of less than about ten micrometers.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: December 31, 2013
    Assignee: Lighting Science Group Corporation
    Inventors: Fredric S. Maxik, Robert R. Soler, David E. Bartine, Eric Bretschneider
  • Patent number: 8616751
    Abstract: A light guide for interfacing between a light source having a light emitting surface with a first shape and a light receiver with a light receiving surface of a second shape. The light guide has a light emitting end having a first shape of substantially the same size as the first shape of the light emitting surface. A light receiving end has a second shape of substantially the same size as the second shape of the light receiving surface. A free form body between the light emitting end and the light receiving end causes a transition between the first and second shape.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: December 31, 2013
    Assignee: Excelitas Technologies Corp.
    Inventor: Wei Li
  • Patent number: 8616745
    Abstract: The electronic device includes a first cover, a second cover, a light guiding element, and a PCB. A first blocking rib is formed on a bottom of the first cover. A retaining panel extends from the bottom and includes a hook at a distal end thereof. The second cover includes a second blocking rib. The PCB is positioned between the two covers. A light source is mounted on the PCB. A light guiding element includes a flat panel and two sidewalls extending from the flat panel. The hook engages with the end surface of the first sidewall. The first blocking rib and the retaining panel abut against opposite sides of the light guiding element. The second blocking rib abuts against the end surface of the second sidewall. The light guiding element is coupled to the light source and configured to transmit the light from the light source.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: December 31, 2013
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Yong-Jun Yu, Xue-Feng Wan
  • Publication number: 20130343080
    Abstract: Disclosed herein is an improved dental operatory lamp having an LED light source that directs light to a reflector that in turn reflects the light to illuminate a treatment area. In one embodiment, the lamp is adapted for efficient transfer of heat from the light source and into the environment. In another embodiment, the lamp is adapted to generate a predetermined pattern of light optimal for the treatment area. In other embodiments, the lamp includes structural features that enable the lamp to maintain optimum light intensity and/or temperature. Also, disclosed herein are unique reflector embodiments that intentionally provide a generally smooth surface, without facets, that reflect light at all visible and infrared wavelengths.
    Type: Application
    Filed: May 30, 2013
    Publication date: December 26, 2013
    Inventors: Joe Bria, H. Thomas Lockamy, Robert St. Louis, John Helgesen, Nabil Dagher, Ted Von Badinski, Tom Benfield, Austin Unsworth, Nathan Hemmer
  • Publication number: 20130343079
    Abstract: An elongated LED lighting arrangement comprises an elongated fiberoptic light pipe having an exteriorly facing sidewall between its ends. The light pipe is constructed to promote TIR of light between the ends. A first LED light source is tuned to efficiently provide light within a wavelength range to the pipe. Light-extracting means are applied along the light pipe along the main path of TIR light propagation, and comprise down-converting means tuned to efficiently convert light rays from the LED light source within the wavelength range to lower-energy light rays at respectively longer wavelengths and light-scattering means for extracting from the pipe some light rays within the wavelength range without changing the wavelengths of the foregoing light. The light emitted by the down-converting means and the light-scattering means intermix to produce light, the majority of which has a composite color determined by the foregoing light emitted and the foregoing light extracted.
    Type: Application
    Filed: June 20, 2012
    Publication date: December 26, 2013
    Applicant: ENERGY FOCUS, INC.
    Inventors: Blair L. Unger, Gregory P. Frankiewicz, Joseph G. Kaveski, Roger F. Buelow, II, John M. Davenport
  • Patent number: 8613532
    Abstract: In the light flux controlling member (5), the angle between an optical path of light output from the light emission center (14) of a light emitting element (4) and optical axis L1 is ?2. Light is incident on the light flux controlling member (5) through an input surface and travels inside the light flux controlling member at an angle ?2 with respect to optical axis L1. Then, light is output from a light control output surface (10) at an angle ?3 with respect to optical axis L1. The input surface (15) and the light control output surface (10) are formed such that, in a range 0<?1??1max, the relationship between ?1 and ?2 is reversed from ?1<?2 to ?1>?2 when ?1 increases, and the relationship between ?1 and ?3 is reversed from ?1<?3 to ?1>?3 when ?1 increases.
    Type: Grant
    Filed: April 6, 2011
    Date of Patent: December 24, 2013
    Assignee: Enplas Corporation
    Inventors: Yuki Fujii, Mamoru Yoshida, Kazuma Yanagisawa, Tomohiro Saito
  • Patent number: 8613538
    Abstract: An illumination system for producing light and for launching the light into a proximal end of an optical cable of an observation apparatus for endoscopy or microscopy has a light source having at least one LED. In addition, the illumination system has an optical light guiding element between the light source and the proximal end of the optical cable for introducing the light emitted by the light source into the proximal end of the optical cable, wherein a first end region of the optical light guiding element on a side facing the light source has a smaller cross-sectional area than a second end region of the optical light guiding element on a side facing the proximal end of the optical cable. Furthermore, the illumination system has a cooling apparatus which has at least one cooling body and which is thermally conductively connected to the light source in order to remove heat produced by the light source from the illumination system.
    Type: Grant
    Filed: August 24, 2007
    Date of Patent: December 24, 2013
    Assignee: Karl Storz GmbH & Co. KG
    Inventors: Andre Ehrhardt, Klaus M. Irion, Uwe Martin, Fang Lei
  • Publication number: 20130335995
    Abstract: The present invention is provided with a light resource module with larger illumination area, wherein comprising a curve light guide column, the surface of which is formed with several microstructures with light scattering, light refraction or light reflex functions; and two LED light resources, which are corresponding to the two ends of the light guide column The present invention is further provided with a lighting fixture, which comprising at least a light guide column, a heat emission element and a heat conduction element. The present invention of a light resource module with larger illumination area and a lighting fixture thereof have advantages that light is guided to the rear area of the light resource module to enlarge illumination area and reduce unavailable area, making the light resource module and the lighting fixture with larger illumination area.
    Type: Application
    Filed: June 14, 2013
    Publication date: December 19, 2013
    Inventors: KU Te-Kai, Nai-Chiang PAI