Light Modifier Patents (Class 362/317)
  • Patent number: 10274666
    Abstract: A backlight unit includes a light source; a light guide plate; and an optical member on the light guide plate. The optical member includes first insulating patterns into which light from the light guide plate is incident to the optical member; a first insulating layer which covers the first insulating patterns; second insulating patterns into which light from the first insulating layer is incident; and a second insulating layer which covers the second insulating patterns. The light guide plate includes a light incident side surface, pairs of insulating patterns each include one first insulating pattern and one second insulating pattern, and in a top plan view, for each pair of insulating patterns, the first insulating pattern is closer to the light incident side surface than the second insulating pattern.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: April 30, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kwangsoo Bae, Jungsuk Bang, Minjeong Oh, Haeju Yun
  • Patent number: 9845936
    Abstract: A light shield includes a main portion and an overlap portion that is substantially perpendicular to the main portion. The main portion includes a first scored area and a base platform disposed below the first scored area. The first scored area includes a plurality of score lines that define one or more detachable panels. The overlap portion includes a second scored area and another base platform. The second scored area includes another plurality of score lines that define one or more detachable overlap panels. Further, the light shield includes a flange that extends substantially perpendicular to and along a length of a base platform of the light shield's main portion. A first interlocking arm extends from a first end of the flange and a second interlocking arm extends from a second end of the flange that is opposite to the first end.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: December 19, 2017
    Assignee: Cooper Technologies Company
    Inventors: Wilston Nigel Christopher Sayers, Reed Alan Bradford, Khurram Z. Moghal
  • Patent number: 9719663
    Abstract: An illuminating device may include a light source, an optical unit configured to adjust direction of light from the light source, a reflector, a light pipe, and an exciter. The light pipe may receive light having a first wavelength from the optical unit and direct the light having the first wavelength onto the exciter. The exciter may convert the light having the first wavelength into light having the second wavelength and reflects the light having the second wavelength to the reflector. A circumferential wall of the light pipe is configured to reflect the light having the first wavelength and to transmit the light having the second wavelength.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: August 1, 2017
    Assignee: OSRAM GMBH
    Inventors: Yi Ding, Ulrich Hartwig
  • Patent number: 9405147
    Abstract: A light emitting device includes a light source and a light diverging unit including a first light diverging part and a second light diverging part including a bottom surface and a first light emitting surface connected by a side surface. The bottom surface defines a first receiving space for receiving the light source, the first light emitting surface defines a second receiving space communicating with the first receiving space, and the second receiving space comprises a first connecting surface. The second light diverging part is inserted into the second receiving space, and comprises a second light emitting surface and a second connecting surface. The second connecting surface fully contacts the first connecting surface, the second light emitting surface smoothly connects to the first light emitting surface. A refraction index of the first light diverging part is smaller than that of the second light diverging part.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: August 2, 2016
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Chau-Jin Hu, Feng-Yuen Dai, Yung-Lun Huang
  • Patent number: 9348068
    Abstract: An energy-generating transparent (EGT) structure is provided, in addition to a method for generating energy from light incident to an EGT structure. The EGT structure is made up of a window pane with an interior surface adjacent a reflective structure. The method accepts light incident to an exterior surface of the window pane, and transmits light in the visible spectrum through the window pane and reflective structure. However, light in the near-infrared (NIR) spectrum is reflected back from the reflective structure into the window pane, so that reflected NIR, spectrum light is supplied to an edge of the window pane. For example, reflected NIR spectrum light is supplied to the window pane edge if the light has an angle greater than or equal to an angle TIR occurring between the window pane exterior surface and air. This reflected NIR spectrum light can be converted to electrical or thermal energy.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: May 24, 2016
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Akinori Hashimura, Douglas Tweet, Gary Hinch, Byron Cocilovo
  • Publication number: 20150131281
    Abstract: A lighting device for emitting light in selective directions including a light source structure member, a plurality of lighting devices attached to the light source structure member, a controller, a power supply, and an optic carried by the light source structure member and including a plurality of facets. Each light source of the plurality of light sources may be positioned such that light emitted thereby is emitted through a facet of the plurality of facets of the first optic. Each facet of the plurality of facets may be configured to redirect light in a direction that is unique from the other facets of the plurality of facets. Additionally, the controller may be configured to selectively operate each light source of the plurality of light sources. Multiple pairs, or combinations, of light source structure members and optics may be included.
    Type: Application
    Filed: November 11, 2013
    Publication date: May 14, 2015
    Applicant: Lighting Science Group Corporation
    Inventors: Ricardo Romeu, Mark Penley Boomgaarden, Ryan Kelley, Eric Holland
  • Publication number: 20150131313
    Abstract: A light adjusting sheet includes a base and a first light adjusting structure layer. The base includes a first surface and a second surface opposite to the first surface. The first light adjusting structure layer is disposed on the first surface of the base, and the first light adjusting structure layer includes a plurality of light adjusting structures. Each light adjusting structure includes a major axis, a minor axis and a thickness, wherein the major axis of the light adjusting structure is in parallel with an extending direction. A ratio of a length of the minor axis to a length of the major axis is between 0.093 and 0.6, and the thickness is between 2 mm to 6 mm. A backlight module using the light adjusting sheet can achieve high brightness and large viewing angle.
    Type: Application
    Filed: September 18, 2014
    Publication date: May 14, 2015
    Inventors: Chun-Yu LIAO, Chao-Hung WENG, Min-Yi HSU, Ming-Dah LIU
  • Publication number: 20150131092
    Abstract: An optical device and a detection apparatus, with which a measurement sample over a wide concentration range can be detected even if the concentration of a measurement target is relatively low are to be provided. An optical device emits a light for detecting and/or identifying a measurement sample when a light from a light source is incident thereon. This optical device includes multiple metal nanostructures formed on a dielectric body, a first organic molecular film which is formed on the dielectric body between two adjacent metal nanostructures among the multiple metal nanostructures, and a second organic molecular film which is different from the first organic molecular film and is formed on the multiple metal nanostructures. The first organic molecular film and the second organic molecular film attach (capture) a measurement sample 1.
    Type: Application
    Filed: April 23, 2013
    Publication date: May 14, 2015
    Inventors: Yusuke Sakagami, Kohei Yamada, Akiko Yamada
  • Publication number: 20150128490
    Abstract: An improved method to produce artificial light for plant cultivation, an illumination device with a semiconductor light emission solution and device suited for plant cultivation in a greenhouse and/or dark growth chamber environment are described. The best mode is considered to be a lighting device with LEDs that produces an emission spectrum similar to the photosynthetically active radiation (PAR) spectrum in a dark growth chamber. The methods and arrangements allow more precise spectral tuning of the emission spectrum for lights used in plant (310, 311) cultivation. Therefore unexpected improvements in the photomorphogenetic control of plant growth, and further improvements in plant production, especially in dark growth chambers, such as basements, are realized.
    Type: Application
    Filed: December 24, 2014
    Publication date: May 14, 2015
    Inventors: Lars AIKALA, Ilkka KIVIMAKI
  • Publication number: 20150124476
    Abstract: A lighting apparatus includes a wavelength converting apparatus. The wavelength converting apparatus includes a hollow tube and a wavelength converting material. The hollow tube has an accommodating chamber. The wavelength converting material is positioned in the accommodating chamber.
    Type: Application
    Filed: July 22, 2014
    Publication date: May 7, 2015
    Inventors: Kuang-Neng YANG, Kun-Hua WU, Jo-Hsiang CHEN, Tai-Hua HO, Tzong-Liang TSAI, Chih-Hao LIN
  • Patent number: 9022599
    Abstract: A lighting component having an optic is provided. The optic includes a body formed from a plurality of partial elliptical bodies. Each partial elliptical body is substantially elliptical about a source focal point and a common focal point. Each source focal point for the partial elliptical bodies is disparately located and each common focal point for the plurality of partial elliptical bodies is collocated. The body of the optic has a common outlet proximate the common focal point and a plurality of source inlets where each source inlet of the plurality of source inlets is proximate the source focal point for a corresponding one of the plurality of partial elliptical tubes.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: May 5, 2015
    Assignee: Cree, Inc.
    Inventor: David N. Randolph
  • Publication number: 20150117013
    Abstract: A light conversion assembly 100, a lamp and a luminaire is provided. The light conversion assembly 100 comprises a first layer 108 and a second layer 106. The first layer 108 comprises first luminescent material. The first luminescent material comprises particles showing quantum confinement and have at least in one dimension a size in the nanometer range. The first layer is arranged to receive light 110 from a light source emitting light of a first spectral distribution in a violet or blue spectral range. The first spectral distribution has a first peak wavelength. The first layer 108 is configured to convert substantially all the received light 110 towards light 104 of a second spectral distribution in the blue spectral range, independently of the position of first spectral distribution in the violet or blue spectral range. The second spectral distribution has a second peak wavelength which is a longer wavelength than the first peak wavelength. The second layer 106 comprises a second luminescent material.
    Type: Application
    Filed: April 9, 2013
    Publication date: April 30, 2015
    Inventors: Rifat Ata Mustafa Hikmet, Ties Van Bommel
  • Publication number: 20150116981
    Abstract: Disclosed is a phosphor wheel including a substrate, a first phosphor region on the substrate, and a second phosphor region on the substrate. The first phosphor region and the second phosphor region are concentric patterns without any space between their interface. Moreover, the second phosphor region is set to around the first phosphor region.
    Type: Application
    Filed: June 23, 2014
    Publication date: April 30, 2015
    Inventors: Keh-Su CHANG, Yen-I CHOU, Chi CHEN, Meng-Han LIU, Bor WANG
  • Publication number: 20150109816
    Abstract: A light guide plate configured to guide light which is incident on an incidence surface of a plate-shaped member so as to be emitted from an emission surface includes: a light amount adjusting unit configured to adjust the amount of light emitted from an excessive light amount region of the emission surface, wherein the light amount adjusting unit is provided on one of the incidence surface and the emission surface, corresponding to the excessive light amount region.
    Type: Application
    Filed: October 23, 2014
    Publication date: April 23, 2015
    Applicant: NIKON CORPORATION
    Inventor: Takeshi YAGI
  • Patent number: 8998455
    Abstract: A method 200 of manufacturing a (part of) color ring is provided. The color ring converts a color of light emitted by a light emitter into at least one other color. The method (200) comprising the steps of: i) pressing (102) a first ring body of a first granulated precursor comprising a first luminescent material for converting the color of the light of the light emitter into a first one of the at least one other color, and ii) sintering (104) the first ring body for obtaining a first ceramic ring. The color ring comprises at least a segment of the first ceramic ring.
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: April 7, 2015
    Assignee: Koninklijke Philips N.V.
    Inventors: Ulrich Weichmann, Yuri Aksenov, Johannes Baier, Jan Renier Marie Hochstenbach, Uwe Mackens, Joachim Opitz, Peter Josef Schmidt
  • Publication number: 20150085262
    Abstract: There is provided a luminescent light emitting device including a mirror layer, a luminescent material plate that is formed on one surface side of the mirror layer, and a conductive thin wire film in which a conductive thin wire is disposed and that lies on the other surface side of the mirror layer, in that luminescent light that is emitted by the luminescent material plate is emitted to the front that is one surface side of the luminescent material plate by the mirror layer, and damage done to the luminescent material plate is detected by a disconnection of the conductive thin wire.
    Type: Application
    Filed: September 15, 2014
    Publication date: March 26, 2015
    Applicant: CASIO COMPUTER CO., LTD.
    Inventor: Naotsugu OGURA
  • Publication number: 20150085490
    Abstract: Light modules for converting the wavelength of light are described herein along with methods for using and making such modules and devices incorporating such modules.
    Type: Application
    Filed: June 20, 2012
    Publication date: March 26, 2015
    Applicant: CRYSTALPLEX CORPORATION
    Inventors: Gregory D. Miller, William R. Freeman
  • Publication number: 20150085497
    Abstract: An alumina-based ceramic wavelength converter is described having a surface layer containing a second phase of alumina, preferably as alumina crystallites. The surface layer is formed as a result of the sintering process used to form the bulk ceramic which is itself substantially transparent. The ceramic wavelength converter is combined with a light emitting diode to form a light emitting device. Preferably, the ceramic wavelength converter is comprised of an alumina-based phosphor represented by a general formula A3B5O12:Ce, wherein A is Y, Sc, La, Gd, Lu, or Tb and B is Al, Ga or Sc.
    Type: Application
    Filed: September 26, 2013
    Publication date: March 26, 2015
    Applicant: OSRAM SYLVANIA INC.
    Inventors: John F. Kelso, Kathleen A. Lawson
  • Publication number: 20150077990
    Abstract: Provided is a diffuser for a backlight and display device having the same. The display device may include a case, a display screen provided in the case, and a backlight provided behind the display screen. The backlight may include a first light panel, a second light panel provided adjacent the first light panel, and a diffuser provided over a boundary between the first and second light panels to diffuse light between the first and second light panels. The diffuser may have light blocking regions arranged in a prescribed pattern to diffuse the light.
    Type: Application
    Filed: August 27, 2014
    Publication date: March 19, 2015
    Inventors: Jungwoon PARK, Jongjin Kim, Youngil Kim, Yongshu Shin
  • Publication number: 20150078010
    Abstract: Thin film wavelength converters and methods for making the same are disclosed. In some embodiments, the thin film converters include a first thin film layer of first wavelength conversion material, a conductive layer, and a second thin film layer of a second wavelength conversion material. In one embodiment, a photoresist mask is applied to the conductive layer to form a pattern of by which the second wavelength conversion material may be applied by electrophoretic deposition to the exposed regions of the surface of the conductive layer.
    Type: Application
    Filed: September 16, 2013
    Publication date: March 19, 2015
    Applicant: OSRAM SYLVANIA INC.
    Inventors: Darshan Kundaliya, Kailash Mishra
  • Publication number: 20150070901
    Abstract: Implementations disclosed herein include optical sheets comprising one or more regions including one or more optical elements. Each of the one or more optical elements includes a plurality of microstructures. The one or more optical elements can be configured to tailor the radiation pattern output from a source of illumination. The one or more optical element can be further configured to impart a visual appearance to the optical sheet that is different from a standard lenticular or prismatic sheet. In various implementations, the one or more regions can be demarcated from each other or the surrounding by borders. The borders of the one or more regions can be configured to form one or more letters, one or more symbols or logos for identification and/or security purposes. Various implementations of the optical sheet can include nano-particles in addition to the optical elements to enhance the aesthetic quality of the optical film.
    Type: Application
    Filed: September 9, 2014
    Publication date: March 12, 2015
    Inventors: Christopher Chapman Rich, Phillip Christopher Harvey, Eric William Hearn Teather, Joel Mikael Petersen
  • Publication number: 20150070907
    Abstract: An optical converter for producing colored or white light from blue excitation light is provided. The converter has good scattering properties to be able to produce nearly white light from the scattered blue light components and the scattered, converted yellow light components. The optical converter includes material including one or more of a YAG ceramic, a LuAG ceramic, and a magnesium-aluminum ceramic exhibiting strong scattering.
    Type: Application
    Filed: April 25, 2014
    Publication date: March 12, 2015
    Applicant: SCHOTT AG
    Inventors: Volker Hagemann, Peter Nass, Yvonne Menke, Bernd Hoppe, Wolfram Beier, Rainer Liebald, Niko Schultz, Guenter Weidmann, Hauke Esemann
  • Publication number: 20150055319
    Abstract: A wavelength conversion structure for a light source including a solid-state light-emitting device. The wavelength conversion structure includes one or more apertures formed therein. The apertures may permit color steering of the light downstream of the conversion structure without a substantial reduction in the output of secondary light produced during a conversion process.
    Type: Application
    Filed: March 14, 2013
    Publication date: February 26, 2015
    Inventors: Nathan Zink, Krister Bergenek, Madis Raukas
  • Publication number: 20150048380
    Abstract: In an optical substrate (1), a concave-convex structure (12) including a plurality of independent convex portions (131 to 134) and concave portions (14) provided between the convex portions (131 to 134) is provided in a surface. The average interval Pave between the adjacent convex portions (131 to 134) in the concave-convex structure (12) satisfies 50 nm?Pave?1500 nm, and the convex portion (133) having a convex portion height hn satisfying 0.6 h?hn?0 h for the average convex portion height Have is present with a probability Z satisfying 1/10000?Z?1/5. When the optical substrate (1) is used in a semiconductor light-emitting element, dislocations in a semiconductor layer are dispersed to reduce the dislocation density, and thus internal quantum efficiency IQE is improved, and a waveguide mode is removed by light scattering and thus the light the extraction efficiency LEE is increased, with the result that the efficiency of light emission of the semiconductor light-emitting element is enhanced.
    Type: Application
    Filed: March 29, 2013
    Publication date: February 19, 2015
    Applicant: ASAHI KASEI E-MATERIALS CORPORATION
    Inventors: Jun Koike, Yoshimichi Mitamura, Fujito Yamaguchi
  • Publication number: 20150029729
    Abstract: The present invention discloses a light redirecting film. The light redirecting film comprises a support substrate and an optical substrate. The support substrate comprises a unitary body, wherein the unitary body has a first surface and a second surface opposite to the first surface. The optical substrate has a third surface and a fourth surface opposite to the third surface, wherein the fourth surface is a structured surface, and the second surface of the unitary body faces the third surface of the optical substrate. A plurality of particles are disposed in a region below the first surface of the unitary body, wherein the thickness of the region is smaller than the thickness of the unitary body.
    Type: Application
    Filed: October 16, 2014
    Publication date: January 29, 2015
    Inventors: Nan-I Liu, Han-Tsung PAN
  • Publication number: 20150016085
    Abstract: Disclosed are an optical device, an optical element, and an image display device that can achieve an improved absorption efficiency of excitation light. The optical device includes: a light-emitting element; a carrier generation layer on which light from the light-emitting element is incident and in which carriers are generated; a plasmon excitation layer that excites a plasmon, stacked on the upper side of the carrier generation layer and has a plasma frequency higher than a frequency of light generated when the carrier generation layer is excited by the light from the light-emitting element; and an exit layer that converts light or a surface plasmon generated on a surface of the plasmon excitation layer into light having a predetermined exit angle and from which the light having the predetermined exit angle exits. The optical device further includes a polarization conversion layer on the lower side of the carrier generation layer.
    Type: Application
    Filed: October 3, 2012
    Publication date: January 15, 2015
    Inventors: Masanao Natsumeda, Masao Imai, Shin Tominaga, Naofumi Suzuki, Mizuho Tomiyama, Yuji Ohno
  • Publication number: 20150016108
    Abstract: Certain example implementations of the disclosed technology include a light emitting device. The light emitting device may include an enclosure with four sides and a top edge surface associated with each of the four sides. The enclosure may be capable of mounting on a grid frame of a suspended ceiling such that a portion of the top edge surfaces contacts a portion of the grid frame. The light emitting device may further include a light modifying element characterized by a substrate with four or more edges, a back surface disposed on the top edge surface of each of the four sides of the enclosure, and a front surface. In certain example embodiments the substrate may further comprise two or more edge trusses. A periphery of the light-emitting front surface may be capable of contacting the grid frame after the light emitting device is mounted to the grid frame.
    Type: Application
    Filed: September 18, 2014
    Publication date: January 15, 2015
    Applicant: Southpac Trust International Inc, Trustee of the LDH Trust
    Inventor: Leslie David Howe
  • Publication number: 20150009686
    Abstract: A light mixing chamber includes a housing having a channel formed therein, with the channel exposed to an exterior of the housing. A chamber is formed in the housing, and an aperture formed in the housing connects the chamber to the channel. The chamber may house an LED, with an optical member being retained within the channel. A light guide plate may be positioned on an exterior of the housing outside the channel.
    Type: Application
    Filed: July 10, 2014
    Publication date: January 8, 2015
    Inventors: WARREN PUMYEA, SRIDHAR SADASIVAN, SUCHIT SHAH
  • Publication number: 20140375961
    Abstract: A phosphor device of an illumination system is provided. The illumination system emits a first waveband light and has an optical path. The phosphor device includes a first section and a first phosphor agent. The first phosphor agent is coated on the first section. After the first waveband light is received by the first phosphor agent, the first waveband light is converted into a third waveband light, and the third waveband light is directed to the optical path, so that the third waveband light is separated into at least two color lights along the optical path.
    Type: Application
    Filed: September 5, 2014
    Publication date: December 25, 2014
    Inventors: Bor Wang, Keh-Su Chang, Chien-Hao Hua
  • Publication number: 20140362558
    Abstract: A phosphor body (1) for converting pump light into converted light, the extent of said phosphor body being greater in a direction of extent (3) than in a direction perpendicular thereto, and which phosphor body is adapted to emit converted light in the direction of extent (3) as a result of illumination with pump light. The phosphor body (1) comprises at least two phosphor body subvolumes (2a,b,c,d), which are configured in such a way that the converted light emitted in each case by said phosphor body subvolumes differs in terms of the spectral properties. The phosphor body subvolumes are arranged successively in a direction oriented perpendicular to the direction of extent.
    Type: Application
    Filed: December 17, 2012
    Publication date: December 11, 2014
    Applicant: OSRAM GMBH
    Inventor: Andre Nauen
  • Publication number: 20140353702
    Abstract: A wavelength conversion element includes a phosphor layer including phosphor particles configured to be excited by light from a light source and a matrix located among the phosphor particles; and a column-shaped structural body including at least two kinds of column-shaped bodies periodically arranged and in contact with the phosphor layer. The column-shaped bodies have different heights and/or different thicknesses. The column-shaped structural body is a photonic crystal.
    Type: Application
    Filed: May 14, 2014
    Publication date: December 4, 2014
    Applicant: PANASONIC CORPORATION
    Inventors: Nobuaki NAGAO, Takahiro HAMADA, Nobuyasu SUZUKI, Seigo SHIRAISHI
  • Patent number: 8888355
    Abstract: Discussed are a light guide plate and an apparatus and method for manufacturing the same. The light guide plate manufacturing apparatus includes a stage supporting a substrate for manufacturing the light guide plate, a screen disposed on the substrate supported by the stage, an applying part applying an etching ink onto the screen, and a squeegee pressurizing the screen with the etching ink applied thereon to form a pattern corresponding to a screen pattern in the substrate. The screen pattern corresponding to the pattern to be formed in the substrate is formed in the screen. The etching ink is used for etching the substrate to form the pattern in the substrate. The light guide plate can prevent loss of light due to the pattern, and enhance efficiency of light (emitted from a light source) supplied to a display panel.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: November 18, 2014
    Assignee: LG Display Co., Ltd.
    Inventors: YoungBae Han, SunHye Kang
  • Publication number: 20140326988
    Abstract: To provide a substrate for optics for enabling the color shift caused by diffraction of light to be reduced, a substrate for optics (12) is provided with a fine-structure layer including dots (31) comprised of a plurality of convex portions or concave portions extending in the direction of from a main surface of a substrate to outside the surface, the fine-structure layer has a plurality of dot lines in which a plurality of dots is arranged with a pitch (Py) in the first direction inside the main surface of the substrate, while having a plurality of dot lines in which a plurality of dots is arranged with a pitch (Px) in the second direction orthogonal to the first direction inside the main surface of the substrate, and both of the pitch Py and the pitch Px are inconstant intervals and are of nano-order.
    Type: Application
    Filed: December 25, 2012
    Publication date: November 6, 2014
    Inventors: Fujito Yamaguchi, Jun Koike, Naoki Inoue
  • Publication number: 20140326971
    Abstract: A light extraction substrate which can realize a superior light extraction efficiency when applied to an organic light-emitting device, and an organic light-emitting device having the same. The light extraction substrate includes a base substrate and a matrix layer. One surface of the matrix layer adjoins to the base substrate, and the other surface of the matrix layer adjoins to an organic light-emitting diode. The light extraction substrate also includes a rod array disposed inside the matrix layer. The rod array includes at least one rod which is arranged in a direction normal to the one surface of the matrix layer. The rod array and a cathode of the organic light-emitting diode form an antenna structure which guides light generated from the organic light-emitting diode to be emitted in the normal direction.
    Type: Application
    Filed: May 2, 2014
    Publication date: November 6, 2014
    Applicant: SAMSUNG CORNING PRECISION MATERIALS CO., LTD.
    Inventor: Hong Yoon
  • Patent number: 8879851
    Abstract: A computer implemented method for determining shape from differential motion with unknown reflectance includes deriving a general relation that relates spatial and temporal image derivatives to bidirectional reflectance distribution function BRDF derivatives, responsive to 3D points and relative camera poses from images and feature tracks of an object in motion under colocated and unknown directional light conditions, employing a rank deficiency in image sequences from the deriving for shape determinations, under predetermined multiple camera and lighting conditions, to eliminate BDRF terms; and recovering a surface depth for determining a shape of the object.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: November 4, 2014
    Assignee: NEC Laboratories America, Inc.
    Inventors: Manmohan Chandraker, Kai Yu
  • Publication number: 20140321112
    Abstract: A bulb structure and a light guide lamp cover thereof are provided. The bulb structure comprises a light source and a lamp body. The light source includes a circuit board and a plurality of light emitting elements disposed on the circuit board. The lamp body includes a light guide lamp cover disposed above the light source. The light guide lamp cover includes a light guide element and a holder. The light guide element covers a peripheral surface of the holder. The light guide element is moveably connected onto the holder through a fastening element and can move relative to the holder.
    Type: Application
    Filed: January 2, 2014
    Publication date: October 30, 2014
    Applicant: LITE-ON IT CORPORATION
    Inventor: Ku-Yuan HUANG
  • Patent number: 8872672
    Abstract: A traffic signal system with dual light sources includes a signal displaying module, an ambient light module and a supplementary light module. The ambient light from environment is assembled by the ambient light module for generating a first light beam. A second light beam is provided by the supplementary light module disposed near the ground for easy maintaining and avoiding danger. The supplementary light module includes a sensor and a control circuit. The sensor senses the brightness of the first light beam passing through the signal displaying module and generates a photosensitive signal. The brightness of the second light beam is regulated by the control circuit according to the photosensitive signal. The brightness of the first light beam is supplied by regulating the brightness of the second light beam, so the signal displaying module has high-brightness light source and achieves the energy conservation.
    Type: Grant
    Filed: June 6, 2012
    Date of Patent: October 28, 2014
    Assignee: National Taiwan University of Science and Technology
    Inventors: Allen Jong-Woei Whang, Yi-Yung Chen, Horng-Ching Hsiao, Jiun-Shi Liu, Nai-Lun Ku
  • Patent number: 8851698
    Abstract: The present invention is an articulating hand power tool which in one embodiment includes a head portion including a head housing configured to articulate with a main housing, a bit holder rotatably positioned within the head housing, and a lighting assembly configured to emit a first elongated beam pattern from the head portion.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: October 7, 2014
    Assignee: Robert Bosch GmbH
    Inventor: Jon Parrinello
  • Publication number: 20140293617
    Abstract: A photoluminescent guide for an emergency lighting system includes a housing having a first end, a second end opposite the first end, and a longitudinal slot extending between the first end and the second end. A one-piece composite insert is disposed within the longitudinal slot. The one-piece composite insert includes a photoluminescent layer and a light-transmitting layer integrally secured to the photoluminescent layer. The one-piece composite insert is configured to receive light at the photoluminescent layer through the light-transmitting layer and to emit light from the photoluminescent layer through the light-transmitting layer.
    Type: Application
    Filed: March 28, 2014
    Publication date: October 2, 2014
    Applicant: Saf-T-Glo Limited
    Inventor: Sean Patrick O'Kell
  • Publication number: 20140293576
    Abstract: A phosphor device of an illumination system emitting a first color light in a first waveband region includes a first region having n sub-regions and n single-powder phosphor agents, wherein n is ?2. The n single-powder phosphor agents are coated on the n sub-regions, respectively, for transforming the first color light in the first waveband region into n color lights in n waveband regions. The n sub-regions are arranged in a specific area ratio. The first color light in the first waveband region is cyclically transformed into a second color light in a second waveband region, a third color light in a third waveband region, . . . , and a (n+1)th color light in a (n+1)th waveband region in a specific time ratio according to the specific area ratio, such that the n color lights sequentially outputted in the specific time ratio are integrated as a specific color light.
    Type: Application
    Filed: August 14, 2013
    Publication date: October 2, 2014
    Applicant: Delta Electronics, Inc.
    Inventors: Yen-I Chou, Chi Chen
  • Publication number: 20140293192
    Abstract: A display panel can display images or information on at least one surface side and transmit external light through a transmissive display element. The display panel includes a plurality of light-emitting elements that emit light to the one surface side and can be driven independently and a plurality of transmissive display elements that can be driven independently. Alternatively, a display panel transmits external light through a double-side light-emitting element and a transmissive display element. The display panel includes a plurality of double-side light-emitting elements that can be driven independently and a plurality of transmissive display elements that can be driven independently.
    Type: Application
    Filed: March 25, 2014
    Publication date: October 2, 2014
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Kaoru Hatano
  • Publication number: 20140268732
    Abstract: A lighting component having an optic is provided. The optic includes a body formed from a plurality of partial elliptical bodies. Each partial elliptical body is substantially elliptical about a source focal point and a common focal point. Each source focal point for the partial elliptical bodies is disparately located and each common focal point for the plurality of partial elliptical bodies is collocated. The body of the optic has a common outlet proximate the common focal point and a plurality of source inlets where each source inlet of the plurality of source inlets is proximate the source focal point for a corresponding one of the plurality of partial elliptical tubes.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: CREE, INC.
    Inventor: David N. Randolph
  • Publication number: 20140254133
    Abstract: The invention relates to a phosphor wheel comprising a carrier (16) and a plurality of pre-manufactured, individual, jointed segments (20) that are mounted on the carrier (16). At least a few of the segments (20) comprise a luminescent substance.
    Type: Application
    Filed: September 14, 2012
    Publication date: September 11, 2014
    Applicant: OSRAM GMBH
    Inventors: Stefan Kotter, Dirk Berben
  • Patent number: 8827503
    Abstract: An optical lens for lighting fixture includes a body, which comprises a bottom surface and a light-exit surface at opposing bottom and top sides thereof, an elongated groove formed in the bottom surface, a light incident surface, a first intersection line and a second intersection line respectively connected between the two ends of the elongated groove and the bottom surface, a first line segment and a second line segment respectively connected between the light incident surface and the bottom surface, a first virtual line defined between the two ends of the first line segment, a first distance that is the shortest distance between the two ends of the first intersection line, and a SAGi that is the shortest distance between any point at the first line segment and the first virtual line and satisfies the equation: 0?|SAGi/first distance|×100?2.8.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: September 9, 2014
    Assignee: Genius Electronic Optical Co., Ltd.
    Inventors: Yi-Jie Lin, Chih-Chieh Wu, Yen-Wei Ho
  • Patent number: 8827487
    Abstract: Gradient optics for controllable light distribution for LED light sources. In an aspect, an apparatus is provided that includes a panel coupled to receive light emitted from a light source and gradient optics disposed on the panel. The gradient optics providing a transparency gradient that filters the light to achieve a selected emitted light intensity variation across a selected surface of the panel.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: September 9, 2014
    Assignee: Bridgelux, Inc.
    Inventor: Todd Farmer
  • Publication number: 20140226343
    Abstract: Described is an ornamental strand of glow-in-the-dark bulbs comprising a plurality of bulbs having a means for glowing in the dark and that are arranged along a strand. The strand of glow-in-the-dark lights resembles a traditional strand of lights, but does not require a power source or any electrical components. The bulbs glow in the dark by means of a phosphorescent material. The bulbs may be composed of a phosphorescent material, coated with a phosphorescent material, or filled with a phosphorescent material. Overall, the present invention provides an ornamental strand of lights for use in decorating a home, tree, or business that does not require the use of electricity.
    Type: Application
    Filed: February 12, 2014
    Publication date: August 14, 2014
    Inventor: Deanna Deas
  • Publication number: 20140185299
    Abstract: Provided is a bandpass filter for a light emitting device that can improve the light emission efficiency in use for a light emitting device, and a light emitting device that can obtain the high light emission efficiency by using the bandpass filter. The light emitting device includes a substrate; a light emitting element disposed over the substrate; a phosphor-containing layer containing at least one kind of phosphor; and a bandpass filter disposed over a surface of the phosphor-containing layer on the light emitting element side, the bandpass filter including a multilayer film having a plurality of first and second dielectric layers, the second dielectric layer being disposed over the first dielectric layer.
    Type: Application
    Filed: December 24, 2013
    Publication date: July 3, 2014
    Applicant: NICHIA COPRORATION
    Inventors: Daisuke SANGA, Tomonori Morizumi, Naoki Azuma, Keisuke Sejiki, Kunihito Sugimoto
  • Publication number: 20140185320
    Abstract: An optical coupling device is used for optically coupling light sources with a light guide plate. The optical coupling device includes transparent light guide portions. Each light guide portion has a light incident surface, a light emitting surface, a top surface, and a bottom surface. The light incident surface is opposite to the light emitting surface. The top surface is opposite to the bottom surface. Along a direction perpendicular to the top surface, a thickness of the light incident surface is greater than a thickness of the light emitting surface. The light incident surface is optically coupled with a corresponding one of the light sources. The light emitting surface is optically coupled with the light guide plate.
    Type: Application
    Filed: April 21, 2013
    Publication date: July 3, 2014
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: LI-YING WANG HE
  • Publication number: 20140177237
    Abstract: The present invention generally relates to methods and systems for narrowing a wavelength emission of light. In certain aspects, methods of the invention involve transmitting light through a filter and passing a portion of the filtered light through a gain chip assembly at least two times before that portion of light passes again through the filter.
    Type: Application
    Filed: December 17, 2013
    Publication date: June 26, 2014
    Applicant: VOLCANO CORPORATION
    Inventor: David Welford
  • Publication number: 20140160790
    Abstract: Disclosed are an optical member, a display device having the same, and a method of fabricating the same. The optical member includes a receiving part having an empty space therein, a host in the receiving part, a plurality of wavelength conversion particles in the host, a sealing part in the receiving part, and a pre-treatment layer between the sealing part and an inner surface of the receiving part.
    Type: Application
    Filed: June 12, 2012
    Publication date: June 12, 2014
    Applicant: LG INNOTEK CO., LTD.
    Inventor: Seung Ryong Park