Light Emitting Diode (led) Patents (Class 362/555)
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Patent number: 8723426Abstract: 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: GrantFiled: July 14, 2011Date of Patent: May 13, 2014Assignee: Prism Projection, Inc.Inventor: Garrett J. Young
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Publication number: 20140126234Abstract: 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: ApplicationFiled: June 29, 2012Publication date: May 8, 2014Applicant: KONINKLIJKE PHILIPS N.V.Inventors: Merijn Keser, Marco Andreas Jacobus Van As, Frank Walterus Franciscus Marie Van Kempen
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Publication number: 20140126235Abstract: 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: ApplicationFiled: January 10, 2014Publication date: May 8, 2014Applicant: Quarkstar LLCInventors: 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
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Patent number: 8714798Abstract: 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: GrantFiled: December 9, 2010Date of Patent: May 6, 2014Assignees: Dongguan Masstop Liquid Crystal Display Co., Ltd., Wintek CorporationInventors: Chia-Ta Chang, Ming-Hsi Chiang, Zhan-Wei Qiu, Hsiu-Ping Lee, Kuo-Jui Huang, Zhi-Ting Ye
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Patent number: 8714784Abstract: 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: GrantFiled: February 18, 2010Date of Patent: May 6, 2014Assignee: OSRAM SYLVANIA Inc.Inventor: Hong Luo
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Patent number: 8714799Abstract: 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: GrantFiled: June 27, 2012Date of Patent: May 6, 2014Inventor: Tseng-Lu Chien
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Publication number: 20140119045Abstract: 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: ApplicationFiled: July 25, 2013Publication date: May 1, 2014Applicant: Wistron CorporationInventors: Kuang-Wen Chen, Yu-Hsin Huang, Fu-Chien Chen, Chun-Chiang Lai
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Publication number: 20140119046Abstract: 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: ApplicationFiled: June 6, 2012Publication date: May 1, 2014Applicant: KONINKLIJKE PHILIPS N.V.Inventors: Ralph Kurt, Stefan Marcus Verbrugh, Jorrit Ernst De Vries, Henricus Marius Joseph Maria Kahlman
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Patent number: 8708499Abstract: 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 (108Type: GrantFiled: September 2, 2009Date of Patent: April 29, 2014Assignee: NEC Display Solutions, Ltd.Inventor: Atsushi Katou
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Patent number: 8702292Abstract: 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: GrantFiled: September 22, 2011Date of Patent: April 22, 2014Assignee: TerraLUX, Inc.Inventor: Anthony Catalano
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Publication number: 20140104867Abstract: 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: ApplicationFiled: October 11, 2013Publication date: April 17, 2014Applicants: Beijing BOE Chatani Electronics Co. Ltd., BOE Technology Group Co., Ltd.Inventor: Yingli Meng
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Publication number: 20140104868Abstract: 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: ApplicationFiled: December 24, 2013Publication date: April 17, 2014Applicant: Quarkstar LLCInventors: 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
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Publication number: 20140098560Abstract: 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: ApplicationFiled: December 11, 2013Publication date: April 10, 2014Applicant: Lumencor, Inc.Inventor: THOMAS J. BRUKILACCHIO
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Publication number: 20140098559Abstract: 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: ApplicationFiled: August 29, 2013Publication date: April 10, 2014Applicant: Hon Yu Auto Parts Co., Ltd.Inventor: Yin-Teng HSIAO
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Patent number: 8690383Abstract: 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: GrantFiled: June 24, 2013Date of Patent: April 8, 2014Assignee: Integrated Illumination Systesm, Inc.Inventors: Thomas L. Zampini, II, Mark A. Zampini
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Publication number: 20140093948Abstract: 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: ApplicationFiled: September 30, 2013Publication date: April 3, 2014Applicant: Roche Molecular Systems, Inc.Inventors: Fabian Durrer, Alan Furlan, Joachim Wietzorrek
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Publication number: 20140092621Abstract: 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: ApplicationFiled: September 28, 2012Publication date: April 3, 2014Applicant: LSI CorporationInventor: Joseph M. Freund
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Publication number: 20140092622Abstract: 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: ApplicationFiled: June 6, 2012Publication date: April 3, 2014Applicant: 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
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Patent number: 8684765Abstract: 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: GrantFiled: October 31, 2008Date of Patent: April 1, 2014Assignee: Tyco Electronics CorporationInventors: Michael Eugene Shirk, Michael J. Phillips, David S. Szczesny
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Patent number: 8687109Abstract: 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: GrantFiled: July 2, 2009Date of Patent: April 1, 2014Assignee: Sharp Kabushiki KaishaInventors: Eiji Kametani, Yoshihiko Yamamoto, Hiroshi Chikugawa
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Publication number: 20140085922Abstract: 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: ApplicationFiled: September 16, 2013Publication date: March 27, 2014Inventors: Kenny PADRO, Mark C. VIKLUND
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Patent number: 8681071Abstract: 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: GrantFiled: July 20, 2006Date of Patent: March 25, 2014Inventor: Daniel Deutsch
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Patent number: 8680753Abstract: 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: GrantFiled: February 18, 2010Date of Patent: March 25, 2014Inventors: Walter Oechsle, Manfred Oechsle
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Publication number: 20140078771Abstract: 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: ApplicationFiled: March 18, 2013Publication date: March 20, 2014Applicant: LEXTAR ELECTRONICS CORPORATIONInventors: Chun-Kuang Chen, Chia-Lun Tsai, Fu-Tse Tang
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Publication number: 20140076864Abstract: 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: ApplicationFiled: August 15, 2013Publication date: March 20, 2014Applicant: ROLLS-ROYCE PLCInventors: James KELL, Clive GRAFTON-REED, Dragos AXINTE
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Publication number: 20140078773Abstract: 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: ApplicationFiled: September 11, 2013Publication date: March 20, 2014Applicant: NOXGEAR, LLCInventors: Simon Curran, Thomas Walters
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Publication number: 20140078772Abstract: 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: ApplicationFiled: January 30, 2012Publication date: March 20, 2014Applicant: SCHOTT AGInventors: Ekkehard Gaydoul, Armin Plichta, Juergen Meinl, Bjoern Bleisinger, Martin Cramer, Thomas Reichert, Marc Timon Sprzagala, Sandra Mattheis
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Publication number: 20140063837Abstract: 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: ApplicationFiled: September 4, 2012Publication date: March 6, 2014Applicant: CREE, INC.Inventor: John R. Rowlette, JR.
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Patent number: 8664675Abstract: 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: GrantFiled: March 27, 2009Date of Patent: March 4, 2014Assignee: Industrial Technology Research InstituteInventors: Tien-Fu Huang, Shih-Hao Hua
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Patent number: 8664683Abstract: 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: GrantFiled: December 14, 2007Date of Patent: March 4, 2014Assignee: Koninklijke Philips N.V.Inventor: Gerardus Henricus Franciscus Willebrordus Steenbruggen
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Patent number: 8657476Abstract: 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: GrantFiled: December 22, 2011Date of Patent: February 25, 2014Assignee: Energy Focus, Inc.Inventors: Roger F. Buelow, Laszlo A. Takacs, Blair L. Unger
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Publication number: 20140049978Abstract: 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: ApplicationFiled: August 17, 2012Publication date: February 20, 2014Inventors: David G. Stites, Andrew M. Hawryluk
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Patent number: 8651679Abstract: 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: GrantFiled: March 14, 2012Date of Patent: February 18, 2014Assignee: Jeco Co., Ltd.Inventors: Hiroyuki Shimane, Hirohisa Tanaka, Akio Ito, Kazuya Sato
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Publication number: 20140043845Abstract: 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: ApplicationFiled: March 12, 2013Publication date: February 13, 2014Applicant: Genesis Photonics Inc.Inventors: Cheng-Yen Chen, Kuan-Wen Chen
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Publication number: 20140027690Abstract: 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: ApplicationFiled: September 27, 2013Publication date: January 30, 2014Applicant: Labor Saving Devices, Inc.Inventors: James Forthman, David G. Morgan, John E. Phillips, Roy Bowling
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Publication number: 20140022811Abstract: 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: ApplicationFiled: September 26, 2012Publication date: January 23, 2014Inventors: David Wheeler, Brenda Cucci, Adam S. Kilgore, Daryl Zalan
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Patent number: 8632216Abstract: 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: GrantFiled: September 23, 2011Date of Patent: January 21, 2014Assignee: Illumitex, Inc.Inventors: Dung T. Duong, Nicholas Flynn Jameson
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Patent number: 8632234Abstract: 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: GrantFiled: December 9, 2011Date of Patent: January 21, 2014Assignee: Chien Luen Industries Co., Ltd., Inc.Inventors: Tien S. Lowe, Mark Velutini, Eli E. Rivera, Joe Zhou, Francisco Biancuzzo
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Patent number: 8628228Abstract: 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: GrantFiled: February 26, 2010Date of Patent: January 14, 2014Inventor: Benton Lundy
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Patent number: 8622571Abstract: 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: GrantFiled: March 18, 2011Date of Patent: January 7, 2014Assignee: Teknoware OyInventors: Yrjö Hartikka, Jouko Kuisma
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Publication number: 20140003082Abstract: 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: ApplicationFiled: June 27, 2012Publication date: January 2, 2014Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventor: Jeffrey Jose' Calderas
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Publication number: 20140003081Abstract: 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: ApplicationFiled: June 27, 2012Publication date: January 2, 2014Inventor: Tiansong Wang
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Patent number: 8616715Abstract: 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: GrantFiled: January 18, 2013Date of Patent: December 31, 2013Assignee: Lighting Science Group CorporationInventors: Fredric S. Maxik, Robert R. Soler, David E. Bartine, Eric Bretschneider
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Patent number: 8616751Abstract: 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: GrantFiled: March 10, 2011Date of Patent: December 31, 2013Assignee: Excelitas Technologies Corp.Inventor: Wei Li
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Patent number: 8616745Abstract: 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: GrantFiled: August 24, 2012Date of Patent: December 31, 2013Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.Inventors: Yong-Jun Yu, Xue-Feng Wan
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Publication number: 20130343080Abstract: 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: ApplicationFiled: May 30, 2013Publication date: December 26, 2013Inventors: Joe Bria, H. Thomas Lockamy, Robert St. Louis, John Helgesen, Nabil Dagher, Ted Von Badinski, Tom Benfield, Austin Unsworth, Nathan Hemmer
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Publication number: 20130343079Abstract: 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: ApplicationFiled: June 20, 2012Publication date: December 26, 2013Applicant: ENERGY FOCUS, INC.Inventors: Blair L. Unger, Gregory P. Frankiewicz, Joseph G. Kaveski, Roger F. Buelow, II, John M. Davenport
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Patent number: 8613532Abstract: 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: GrantFiled: April 6, 2011Date of Patent: December 24, 2013Assignee: Enplas CorporationInventors: Yuki Fujii, Mamoru Yoshida, Kazuma Yanagisawa, Tomohiro Saito
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Patent number: 8613538Abstract: 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: GrantFiled: August 24, 2007Date of Patent: December 24, 2013Assignee: Karl Storz GmbH & Co. KGInventors: Andre Ehrhardt, Klaus M. Irion, Uwe Martin, Fang Lei
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Publication number: 20130335995Abstract: 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: ApplicationFiled: June 14, 2013Publication date: December 19, 2013Inventors: KU Te-Kai, Nai-Chiang PAI