Refractor Patents (Class 362/326)
  • Patent number: 10302847
    Abstract: In one or more embodiments, micro light guides are constructed that include a wall and one or more features extending from or protruding into one or more surfaces of the wall. The microstructure light guide is defined by a mold and formed as a single article with uniform internal stresses. In at least some embodiments, the mold that defines the microstructure light guide employs pixelated mold portions that enable selective temperature adjustment of discrete regions of the mold portions to form the microstructure light guide.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: May 28, 2019
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Kurt A. Jenkins, Lincoln M. Ghioni
  • Patent number: 9996724
    Abstract: An optical fingerprint detection apparatus and a display device are disclosed. The optical fingerprint detection apparatus includes: a light source; a touch panel including a first surface and a second surface, the first surface being provided with at least one touch area, the second surface being configured for receiving the light beam emitted from the light source and angled with respect to the first surface by an angle of less than 90 degrees; and a detection unit located outside of the side of the touch panel opposite to the first surface and configured for receiving the light beam reflected by the touch area and emitted from the touch panel and detecting an intensity distribution of the received light beam.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: June 12, 2018
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Jian Gao, Yingming Liu, Xiaochuan Chen, Xiaochen Niu, Pengcheng Lu
  • Patent number: 9931028
    Abstract: A light assembly for a hand-held medical diagnostic instrument. The light assembly includes a substrate having a top surface and a bottom surface, a light source mounted to the top surface, and the bottom surface having first and second electrical terminals. The light assembly further includes a circuit board disposed inclined to the substrate, the circuit board having first and second electrical terminals, a first connector mounting and electrically connecting the first electrical terminal of the substrate to the first electrical terminal of the circuit board, a second connector mounting and electrically connecting the second electrical terminal of the substrate to the second electrical terminal of the circuit board, a heat sink, and a thermal conductor thermally connecting at least one of the first and second electrical terminals of the substrate to the heat sink.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: April 3, 2018
    Assignee: WELCH ALLYN, INC.
    Inventors: Raymond A. Lia, Chris R. Roberts, Ervin Goldfain, Steven R. Slawson, Robert J. Wood
  • Patent number: 9921457
    Abstract: A lighting device capable of changing the light irradiation range includes a light emitting portion, and an optical member disposed in front of the light emitting portion. The optical member has a plurality of shapes such that two types of cylindrical concave surface having axial directions substantially perpendicular to each other are crossed each other. The plurality of shapes are formed in a central region of an entry surface through which light from the light emitting portion enters or a central region of an exit surface through which the light entering through the entry surface exits.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: March 20, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yoshinobu Okano
  • Patent number: 9903997
    Abstract: The present disclosure discloses a light transmission device including a first prism layer. The first prism layer includes a plurality of first prism bars formed on a surface of the first prism layer facing away from the panel, and a plurality of reflective grooves formed on a surface of the first prism layer facing the panel. Each of the reflective grooves includes a plurality of reflective surfaces matching with prism surfaces of the first prism bars; the reflective surfaces reflect received light to corresponding prism surfaces; the prism surfaces of the first prism bars are configured to emit received light reflected from the corresponding reflective surfaces towards the panel in a first direction.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: February 27, 2018
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Shang Wang, Qiuxiang Li
  • Patent number: 9557099
    Abstract: An optical lens for a light source has an incidence surface receiving light rays emitted from a light source and an aspherical emitting surface optically coupled with the incidence surface for receiving light rays from the incidence surface and emitting light rays received from the incidence surface. The incidence surface defines a cavity for receiving the light source. An opaque or semi-opaque bottom surface adjoins the incidence surface and emitting surface. A lighting device has a substrate, a lighting source located on the substrate, and the optical lens located with the substrate and enclosing the lighting device. A strip light has an elongate substrate having light sources and respective lenses distributed longitudinally along the substrate. Such a strip light using the lens is suitable for lighting the interior of a commercial or domestic refrigerator, chillier cabinet, or other enclosure.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: January 31, 2017
    Assignee: THE HONG KONG POLYTECHNIC UNIVERSITY
    Inventors: Bo Wang, Suet To, Ka Chun Cheung, Wen Kui Wang
  • Patent number: 9488864
    Abstract: The present disclosure includes an optical component including one or more textured surfaces configured to diffuse light incident thereto from within the optical component. The optical component includes textured surfaces at least along a top periphery of its body.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: November 8, 2016
    Assignee: Radiant Choice Limited
    Inventors: Nguyen The Tran, Jiun-Pyng You
  • Patent number: 9444018
    Abstract: A light emitting diode includes a first semiconductor layer, an active layer, a second semiconductor layer, a protective layer, and a cermet layer. The active layer is on the first semiconductor layer. The second semiconductor layer is on the active layer. the protective layer is located on the semiconductor layer. The cermet layer is located on the protective layer. A first electrode covers entire surface of the first semiconductor layer away from the active layer. A second electrode is electrically connected to the second semiconductor layer.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: September 13, 2016
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Jun Zhu, Hao-Su Zhang, Zhen-Dong Zhu, Qun-Qing Li, Guo-Fan Jin, Shou-Shan Fan
  • Patent number: 9368701
    Abstract: A semiconductor structure includes a first semiconductor layer, an active layer, a second semiconductor layer, and a cermet layer stacked together. The active layer is on a surface of the first semiconductor layer. The second semiconductor layer is on a surface of the active layer away from the first semiconductor layer. The cermet layer is on a surface of the second semiconductor layer away from the first semiconductor layer.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: June 14, 2016
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Jun Zhu, Hao-Su Zhang, Zhen-Dong Zhu, Qun-Qing Li, Guo-Fan Jin, Shou-Shan Fan
  • Patent number: 9076936
    Abstract: A light emitting diode includes a substrate, a buffer layer, a first semiconductor layer, an active layer, a second semiconductor layer, and a cermet layer. The active layer is on the first semiconductor layer. The second semiconductor layer is on the active layer. The cermet layer is on the second semiconductor layer. A first electrode is electrically connected to the first semiconductor layer. A second electrode is electrically connected to the second semiconductor layer.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: July 7, 2015
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Jun Zhu, Hao-Su Zhang, Zhen-Dong Zhu, Qun-Qing Li, Guo-Fan Jin, Shou-Shan Fan
  • Patent number: 9054285
    Abstract: A light emitting diode includes a first semiconductor layer, an active layer, a second semiconductor layer, and a cermet layer. The active layer is on the first semiconductor layer. The second semiconductor layer is on the active layer. The cermet layer is on the second semiconductor layer. A first electrode covers entire surface of the first semiconductor layer away from the active layer. A second electrode is electrically connected to the second semiconductor layer.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: June 9, 2015
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Jun Zhu, Hao-Su Zhang, Zhen-Dong Zhu, Qun-Qing Li, Guo-Fan Jin, Shou-Shan Fan
  • Publication number: 20150138780
    Abstract: The illumination device includes: a case; a heat sink which has a bottom part in which an LED module is installed, a cylindrical wall part standing upright from the bottom part and disposed such that a clearance is created between the cylindrical wall part and an inner wall surface of the case, and an open end formed at the front end of the cylindrical wall part; a fan which is housed in the case; an air intake passage which guides to the fan, air introduced from the lateral side of the case into the case; and an air discharge passage which is formed along the outer surface of the bottom part and the outer wall surface of the cylindrical wall part in the heat sink and discharges the air sent from the fan from the front end side of the heat sink to the outside.
    Type: Application
    Filed: January 27, 2015
    Publication date: May 21, 2015
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Kouta YOSHIZAWA, Toshihiko KURIYAMA, Akeo KASAKURA, Yuki KOHARA, Toru TAKEDA
  • Patent number: 9035230
    Abstract: An optical element includes a refractive index pattern that is periodically formed by a plurality of media having refractive indices different from each other. The highest diffraction order for a light beam of a first wavelength region that enters the optical element is greater than the highest diffraction order for a light beam of a second wavelength region that is longer than the first wavelength region, and the light beams of the first wavelength region and the second wavelength region are emitted so that each of the light beams of the first wavelength region and the second wavelength region is periodically localized.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: May 19, 2015
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Manabu Hakko
  • Publication number: 20150131297
    Abstract: Variable index light extraction layers (100) that contain a plurality of microreplicated posts (120) are described. The variable index light extraction layers contain a plurality of microreplicated posts (120), a first region including a first lower-index substance (130) and a second region including a second higher-index substance (140). Optical films can use the variable index light extraction layers (100) in front lit or back lit display devices.
    Type: Application
    Filed: May 23, 2013
    Publication date: May 14, 2015
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: David S. Thompson, Vivian W. Jones, Michael A. Meis, Mikhail L. Pekurovsky, Kevin R. Schaffer, Audrey A. Sherman, Steven D. Solomonson, Matthew S. Stay, Joseph W. Woody, V, Zhaohui Yang
  • Publication number: 20150124447
    Abstract: Certain example embodiments of this invention relate to heatable glass substrates that may be used in connection with lighting applications, and/or methods of making the same. In certain example embodiments, a glass substrate supports an antireflective (AR) coating on a first major surface thereof, and a conductive coating on a second, opposite major surface thereof. Bus bars connect the conductive coating to a power source in certain example embodiments. The substrate may be heat treated (e.g., heat strengthened and/or thermally tempered), with one or both coatings thereon. The heatable glass substrate thus may help provide a chemical and/or environmental barrier for the luminaire or lighting system disposed behind it. In addition, or in the alternative, the heatable glass substrate may help reduce the amount of moisture (e.g., snow, rain, ice, fog, etc.) that otherwise could accumulate on the luminaire or lighting system.
    Type: Application
    Filed: January 8, 2015
    Publication date: May 7, 2015
    Inventors: David P. MAIKOWSKI, David D. MCLEAN, Timothy BOURQUE, Christopher HOBBS
  • Publication number: 20150117028
    Abstract: A lens includes a main lens and a divergent structure positioned on the top of the main lens. The main lens has a light incident surface for receiving light generated by an LED light source and a light exit surface opposite to the light incident surface. The divergent structure includes a plurality of annular micro lenses each having a triangular shape in cross section. The micro lenses are arranged in a series of concentric circles with regard to a center point located on an optical axis of the main lens. Each micro lens includes an inner surface and an outer surface connected with the inner surface. The inner and outer surfaces define an angle therebetween, which is increased gradually from the center point toward a periphery of the light exit surface. A backlight module using the lens is also provided.
    Type: Application
    Filed: November 28, 2013
    Publication date: April 30, 2015
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: LI-YING WANG HE, YI HUNG
  • Patent number: 9016892
    Abstract: A light fixture includes a housing with a channel configured to contain a driver for driving one or more light emitting diodes located outside the channel. The housing includes slots configured to receive and secure a lens. The light fixture further includes a removable channel cover, tabs located along the length of the channel and adjacent to the channel on the housing, and a lens bar having a first flange configured to secure the lens and a second flange configured to be inserted underneath the tabs. The lens bar is secured in place with the second flange underneath the tabs by the channel cover which prevents the lens bar from moving laterally with respect to the tabs. The slots, the first flange, and a flange running the length of the light fixture perpendicular to the slots are configured to cover the edges of the lens when installed.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: April 28, 2015
    Assignee: Orion Energy Systems, Inc.
    Inventors: John Scribante, Matthew S. Tlachac, Zachary Kurtz
  • Publication number: 20150109789
    Abstract: A circular symmetric optical element for redirecting light which is emitted by a light source through a wavelength converting element, wherein the emitted light have an average color cA and a wavelength distribution depending on an emission angle from the wavelength converting element. Light having the average color cA have an emission angle tA.
    Type: Application
    Filed: April 16, 2013
    Publication date: April 23, 2015
    Applicant: KONINKLIJKE PHILIPS N.V.
    Inventors: Teunis Willem Tukker, Willem Lubertus Ijzerman, Cornelia Roline Prins
  • Patent number: 9004726
    Abstract: Light directing films employing at least two layers forming a continuous corrugated boundary between major surfaces of the film. Light received by a major surface of the film is internally redirected by interacting with the facets of the corrugated inter-layer boundary and is emitted from the opposing major surface towards a new propagation direction which is different from the original propagation direction by up to 90 degrees. Light directing films may have additional layers and/or layer boundaries which may provide additional bend angles to light rays or otherwise diffuse the emitted beam.
    Type: Grant
    Filed: October 26, 2012
    Date of Patent: April 14, 2015
    Assignee: SVV Technology Innovations, Inc.
    Inventor: Sergiy Victorovich Vasylyev
  • Publication number: 20150098211
    Abstract: The exemplary embodiments of the present invention have a first refractive surface whose distance from a central axis gradually increasing as being distanced from a rear surface, and light from a light source can be effectively emitted from a first refractive surface to a lateral direction or an upper lateral direction.
    Type: Application
    Filed: December 14, 2012
    Publication date: April 9, 2015
    Inventors: Chang Hyuck Lee, Eun Sung Seo, Ki Cheol Kim, Hyun Ho Choi, Gi Seok Lee
  • 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: 20150077976
    Abstract: The present invention discloses a new LED lens and LCD backlight screen thereof. The said new LED lens includes base stand, the first protruding stand set on the base stand and the second protruding stand set on the first protruding stand; the side wall of the first protruding stand and the side wall of the second protruding stand constitute the exit surface, the side wall of the first protruding stand is outside-protruding curved surface structure; the top surface of the second protruding stand is reflective surface, and the reflective surface is conic concave structure; the bottom of the base stand is set the cylindrical hole for installing LED, and the surface of the cylindrical hole constitutes incidence surface. The present invention achieves the intention of acquiring the same brightness degree through reducing the projection distance by half compared to the present refractive optical lens with the same LED arrangement distance.
    Type: Application
    Filed: November 28, 2013
    Publication date: March 19, 2015
    Applicant: Dong Guan Oklens Optics Technology Co., Ltd.
    Inventor: Liwang JIANG
  • Publication number: 20150076468
    Abstract: A light extraction product (1) for a semiconductor light emitting device is provided with a concavo-convex structure layer (11), provided with a concavo-convex structure (11a) on a surface thereof, having a first refractive index (n1) and a light extraction layer (12), provided on the convex portion of the concavo-convex structure (11a), having a second refractive index (n2), where in a first light extraction layer (12a) a distance Lcv between an average position Sh of tops of the convex-portions and a convex-portion upper interface average position Scv of the first light extraction layer (12a) meets equation (1) 10 nm?Lcv?5000 nm, in the concavo-convex structure (11a) a convex-portion average height H meets equation (2) 10 nm?H?5000 nm, an average pitch P meets equation (3) 50 nm?P?5000 nm, and the distance Lcv and the convex-portion average height H meet equation (4) 50 nm?Lcv+H?6000 nm.
    Type: Application
    Filed: April 11, 2013
    Publication date: March 19, 2015
    Applicant: ASAHI KASEI E-MATERIALS CORPORATION
    Inventors: Fujito Yamaguchi, Jun Koike, Aya Takagiwa
  • Patent number: 8979318
    Abstract: LEDs having a low color temperature up to 5000 K, comprising a blue-emitting LED and, connected upstream thereof, two phosphors having a first phosphor from the class of the chliorosilicates and a second phosphor from the class of the nitridosilicates having the formula (Ca,Sr)2Si5N8:Eu.
    Type: Grant
    Filed: July 15, 2005
    Date of Patent: March 17, 2015
    Assignees: OSRAM Opto Semiconductors GmbH, OSRAM Gesellschaft mit beschrankter Haftung
    Inventors: Tim Fiedler, Frank Jermann, Jörg Strauβ
  • Publication number: 20150070906
    Abstract: A lens assembly including a lens; a light absorber that does not transmit light with wavelengths from greater than or equal to about 250 nm to less than or equal to about 400 nm; a lens holder; and an adhesive configure to adhere the lens to the lens holder. The light absorber is positioned such that light having a wavelength from greater than or equal to about 190 nm to less than or equal to about 500 nm is not incident to the adhesive. A method including applying a light absorber, which does not transmit light with wavelengths from greater than or equal to about 190 nm to less than or equal to about 500 nm, to a lens; and configuring the light absorber and the adhesive so that the absorbed light is not incident to the adhesive.
    Type: Application
    Filed: September 6, 2013
    Publication date: March 12, 2015
    Applicant: CORNING INCORPORATED
    Inventors: Michael Jerome Cangemi, Robert Dennis Grejda, Keith Ernest Hanford, Jean-Francois Oudard
  • Patent number: 8975807
    Abstract: An organic light emitting device including a first substrate, a second substrate parallel to the first substrate, and an organic light emitting unit disposed between the first substrate and the second substrate is provided. The first substrate has a plurality of first light guiding microstructures. A distribution density of the first light guiding microstructures is in a range of 100 to 2000 pcs/mm, wherein the first light guiding microstructures are located inside the first substrate and a material of the first substrate includes a photosensitive material.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: March 10, 2015
    Assignees: Dongguan Masstop Liquid Crystal Display Co., Ltd., Wintek Corporation
    Inventors: Chia-Hsiung Chang, Wen-Chun Wang
  • Publication number: 20150062922
    Abstract: A lens device and a light source module using the same are provided. The lens device comprises a lens and a patterned light shielding layer. The lens has a middle light emitting surface and a periphery light emitting surface surrounding the middle light emitting surface. The patterned light shielding layer is formed on the periphery light emitting surface of the lens.
    Type: Application
    Filed: March 19, 2014
    Publication date: March 5, 2015
    Applicant: Lextar Electronics Corporation
    Inventors: Chih-Min Huang, Kuang-Neng Yang, Kun-Hua Wu
  • Publication number: 20150049307
    Abstract: A light source apparatus includes a light source unit and an output unit. The light source unit includes at least one solid-state light source capable of outputting light in a predetermined wavelength range as output light. The output unit includes a light emitter and a base unit. The light emitter is excited by the output light from the light source unit and emits visible light with a wavelength different from a wavelength of the output light. The base unit is rotatable about a predetermined rotation axis and contains a crystalline member having a crystal axis direction set to a direction different from a direction orthogonal to an optical axis direction of the output light, the light emitter being supported in the optical axis direction. The output unit is capable of outputting combined light containing the light in the predetermined wavelength range and the visible light emitted from the light emitter.
    Type: Application
    Filed: August 7, 2014
    Publication date: February 19, 2015
    Applicant: Sony Corporation
    Inventor: Yoshiki Kashihara
  • Publication number: 20150041779
    Abstract: An organic light emitting diode display is provided. The organic light emitting diode display includes a flexible substrate, an organic light emitting diode disposed on the flexible substrate, a thin film encapsulator disposed on the organic light emitting diode, a plurality of low refraction protrusions disposed on at least one of a surface of the flexible substrate and the thin film encapsulator, wherein each of the low refraction protrusions is formed having an isosceles trapezoid shape, and a high refraction layer disposed covering the plurality of low refraction protrusions.
    Type: Application
    Filed: July 24, 2014
    Publication date: February 12, 2015
    Inventors: Soon-Ryong PARK, Tae-Eun KIM, Hye-Jung PARK, Woo-Suk JUNG, Chul-Woo JEONG
  • Publication number: 20150036356
    Abstract: A light source module includes a light source and an optical lens facing the light source. The optical lens includes a light incident surface facing the light source, and a light emitting face opposite to the light incident face. The light emitted from the light source is entered into the optical lens from the light incident face, and exited from the light emitting face. A refractive index of the optical lens gradually decreases along a direction from the light incident face to the light emitting face of the optical lens.
    Type: Application
    Filed: August 15, 2013
    Publication date: February 5, 2015
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: FENG-YUEN DAI, CHAU-JIN HU, YUNG-LUN HUANG, LI-YING WANG HE
  • Patent number: 8944644
    Abstract: This invention relates to a lens module and a LED illumination device using the same. The lens module includes a plurality of lens units and a plate. Each of the lens units includes a lens body, a first engaging structure and a second engaging structure. The lens body has a light incident surface at a top thereof and a light exit surface at a bottom thereof. The first and second engaging structures are arranged at peripheral edges of the lens body. On the other hand, the plate defines a plurality of seats for accommodating the lens units.
    Type: Grant
    Filed: September 20, 2010
    Date of Patent: February 3, 2015
    Assignee: B&M Optics Co., Ltd.
    Inventor: Hung-Pin Kuo
  • Publication number: 20150029709
    Abstract: An elongated lens profile having reverse total internal reflection (TIR) features that improve light extraction when the lens is used in conjunction with a plurality of light emitters. Solid state light emitters, such as LEDs, are arranged proximate to the elongated lens along a longitudinal axis of the lens body. The emitters, which may be grouped in clusters, emit toward a receiving surface of the lens. The receiving surface includes a plurality of reverse TIR features, also disposed along the longitudinal axis. These features may be defined by a series of recessed areas spaced along the longitudinal axis to correspond with the light emitters which can protrude into the negative space created by the recessed features. The recessed features may have more than one shape. The reverse TIR features improve light output uniformity, reducing hot spots along the lens, and improve output efficiency.
    Type: Application
    Filed: October 8, 2014
    Publication date: January 29, 2015
    Inventors: Dong Lu, Paul Kenneth Pickard
  • Publication number: 20150029727
    Abstract: An optical element has a light receiving surface covering a light source arranged on a plane and an exit surface covering the light receiving surface. When an axis passing through the center of the light source and is perpendicular to the plane is designated as an optical axis and the point of intersection of the optical axis and the light receiving surface is designated as O1, the light receiving surface is concaved around the optical axis with respect to the periphery. When an angle which a normal to the light receiving surface on a point P thereon forms with the optical axis is designated as ?h and distance in the optical axis direction from O1 to P is designated as z, ?h has at least one local maximum value and at least one local minimum value with respect to z while P is moved along the light receiving surface.
    Type: Application
    Filed: October 14, 2014
    Publication date: January 29, 2015
    Inventors: Katsumoto IKEDA, Daisuke SEKI, Kouei HATADE
  • Patent number: 8939606
    Abstract: Certain example embodiments of this invention relate to heatable glass substrates that may be used in connection with lighting applications, and/or methods of making the same. In certain example embodiments, a glass substrate supports an antireflective (AR) coating on a first major surface thereof, and a conductive coating on a second, opposite major surface thereof. Bus bars connect the conductive coating to a power source in certain example embodiments. The substrate may be heat treated (e.g., heat strengthened and/or thermally tempered), with one or both coatings thereon. The heatable glass substrate thus may help provide a chemical and/or environmental barrier for the luminaire or lighting system disposed behind it. In addition, or in the alternative, the heatable glass substrate may help reduce the amount of moisture (e.g., snow, rain, ice, fog, etc.) that otherwise could accumulate on the luminaire or lighting system.
    Type: Grant
    Filed: April 2, 2012
    Date of Patent: January 27, 2015
    Assignee: Guardian Industries Corp.
    Inventors: David P. Maikowski, David D. McLean, Timothy Bourque, Christopher Hobbs
  • 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
  • Patent number: 8931930
    Abstract: Described herein are devices, compositions, and methods for improving color discernment.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: January 13, 2015
    Assignee: Nitto Denko Corporation
    Inventors: Brett T. Harding, Sheng Li, Amane Mochizuki, Hironaka Fujii
  • Publication number: 20150003078
    Abstract: A lens includes a bottom face, a light incident face defined in the bottom face, a top face and four lateral faces interconnecting the top face and the bottom face. Each lateral face is perpendicular to two adjacent lateral faces, and parallel to an opposite lateral face. An LED unit incorporating the lens is also disclosed.
    Type: Application
    Filed: August 27, 2013
    Publication date: January 1, 2015
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: CHAU-JIN HU, FENG-YUEN DAI, PO-CHOU CHEN
  • Publication number: 20150003081
    Abstract: In an auxiliary light source unit, when the longest length of a light emitting face of an LED light source is S (mm), the furthest distance from the light emitting face of the LED light source to the light exiting surface of an optical element is T (mm), the largest diameter of the light transmitting section is L1 (mm), and the largest diameter in first partial ring zones and second partial ring zones is L2 (mm), the following conditional expressions are satisfied, 1.5<L2/S<4.0??(1) S/3<T<25??(2) 0.1<L1·T/S<1.05??(3) provided that T=T1+T2, where T1 is a thickness (mm) from the light emitting face of the LED light source to the light entering surface of the optical element, and T2 is a thickness (mm), in the optical axis direction, of the optical element.
    Type: Application
    Filed: December 8, 2012
    Publication date: January 1, 2015
    Inventors: Daisuke Kobayashi, Yuki Naoi, Yuki Ono
  • Patent number: 8922734
    Abstract: An exemplary lens for diffusing light from an LED to a diffusion plate of an LCD module, includes a light-refraction portion and a plurality of legs extending from the light-refraction portion. The light-refraction portion includes a light-incident face facing the LED and a light-emergent face opposite to the light-incident face and facing the diffusion plate. The light-incident face defines a plurality of dots therein. Each dot is a depression and has an inner face concaved from the light-incident face.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: December 30, 2014
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: I-Thun Lin
  • Patent number: 8899802
    Abstract: Optical component for illumination purposes, wherein the optical component comprises a monolithic body of transparent material, the monolithic body including a first light entry face, a first optically operative light exit face, a second optically operative light entry, and a second optically operative light exit face.
    Type: Grant
    Filed: November 11, 2011
    Date of Patent: December 2, 2014
    Assignee: Docter Optics SE
    Inventors: Dmitry Fedosik, Wolfram Wintzer, Silvana Kock, Mohsen Mozaffari
  • Patent number: 8894250
    Abstract: In an illuminating device, when exiting lights come out from a lens sheet, the optical paths of the exiting lights are deflected in a direction opposite to an optical axis of a light source by means of a plurality of prisms which are included in a first lens group arranged on an inward side of the lens sheet located adjacent to the optical axis of the light source and each of which has a inclined face facing toward the optical axis of the light source, wherein the exiting lights from the light source via the first lens group of the lens sheet are adapted to mix with exiting lights from the light source via a second lens group located outside the first lens group, whereby the degree of color unevenness is reduced, that appears inherently when a pseudo white LED is used as the light source of the illuminating device.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: November 25, 2014
    Assignee: Minebea Co., Ltd.
    Inventors: Masaki Asai, Koji Sakai, Ryohei Takayama
  • Patent number: 8894263
    Abstract: A display apparatus includes a light source, a display panel and an optical plate between the light source and the display panel. The optical plate includes a supporting sheet, a first, a second and a third optical layer. The first optical layer is disposed on a bottom surface of the supporting sheet and has a plurality of first protruding portions on a bottom surface of the first optical layer and has a first refractive index. The second optical layer is disposed on the bottom surface of the first optical layer and covers the first protruding portions. The second optical layer has a second refractive index larger than the first refractive index. The third optical layer is disposed on a top surface of the supporting sheet and has a plurality of second protruding portions on a top surface and has a third refractive index smaller than the second refractive index.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: November 25, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong-Yeol Yeom, Yongkyu Kang, Seunghwan Chung
  • Publication number: 20140340898
    Abstract: A lens member for projecting light from an LED in a square pattern includes a body formed of a light transmissive material. The body includes a base portion and a bulbous-shaped, light-directing lens portion extending upwardly from the base portion. A recess extending upwardly from a lower surface of the base portion and into the bulbous-shaped, light-directing lens portion continuously tapers from the base to a flat, circular surface below a top surface of the bulbous-shaped, light-directing lens portion. The lens portion has a horizontal cross-sectional shape that is substantially square at elevations between the base and the top surface of the lens portion.
    Type: Application
    Filed: May 14, 2013
    Publication date: November 20, 2014
    Applicant: CoreLED Systems, LLC
    Inventors: Derek S. Mallory, Brian C. Wells
  • Patent number: 8888333
    Abstract: Light redirecting film is disclosed. The light redirecting film includes a first major surface that includes a plurality of first microstructures that extend along a first direction. The light redirecting film also includes a second major surface that is opposite to the first major surface and includes a plurality of second microstructures. The second major surface has an optical haze that is in a range from about 4% to about 20% and an optical clarity that is in a range from about 20% to about 60%. The light redirecting film has an average effective transmission that is not less than about 1.55.
    Type: Grant
    Filed: August 11, 2010
    Date of Patent: November 18, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Robert A. Yapel, Mitchell A. F. Johnson, Tri D. Pham, Joseph T. Aronson, Steven D. Solomonson, Scott R. Kaytor, Steven J. McMan, Fei Lu, Steven H. Kong, Slah Jendoubi, Gary T. Boyd
  • Patent number: 8890395
    Abstract: A beamshaping optical stack (108), a light source and a luminaire is provided. The beamshaping optical stack (108) is to be optically coupled to a light emitting surface of a light emitter. The beamshaping optical stack (108) comprises a first light transmitting layer (120) and a second light transmitting layer (118). The second light transmitting layer (118) comprises a first side (110) which is optically coupled to the first light transmitting layer (120) to receive light from the first light transmitting layer (120). The second light transmitting layer (118) further comprises a second side (106) which is substantially opposite the first side (110) to emit the received light into another optical medium. The second light transmitting layer (118) further comprises a geometrical structure (116) at the second side (106) to obtain a decreasing light emission with increasing light emission angles (9a) with respect to a normal (112) to the first side (110).
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: November 18, 2014
    Assignee: Koninklijke Philips N.V.
    Inventor: Ferry Zijp
  • 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
  • Publication number: 20140313742
    Abstract: A light-influencing element for influencing the light emission of essentially point light sources having at least one lens which has a cavity defining a light entrance section of the lens, and a light exit surface opposite the light entrance section, a beam splitter being formed in the light entrance section of the lens.
    Type: Application
    Filed: July 5, 2012
    Publication date: October 23, 2014
    Applicant: ZUMTOBEL LIGHTING GMBH
    Inventor: Stephan Ebner
  • Patent number: 8864346
    Abstract: The present subject matter is directed to a system and method for producing a batwing light distribution. A lens is illuminated with a light source, preferably an LED, and the lens is configured to internally reflect a portion of the illuminating light back in a direction generally opposite to the initial illumination direction. Another portion of the light from the light source may pass through other lens surfaces but may also be reflected back past the light source with a reflector positioned on the other side of the lens from the light source. The light source may be mounted on a frame so as to obscure light therefrom from view.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: October 21, 2014
    Assignee: GE Lighting Solutions, LLC
    Inventors: Jeyachandrabose Chinniah, Benjamin Lee Yoder, Gary Robert Allen
  • Publication number: 20140300972
    Abstract: A lens optical element including an on-chip lens with a convex surface formed at a top part of a column-shaped portion; and a light emitting surface disposed in a state where the light emitting surface is covered by a bottom portion of the column-shaped portion of the on-chip lens. The relationship between a lens height, which is defined as a height from the light emitting surface to a peak of the convex surface, a thickness of the column-shaped portion, and a refractive index of a structural material of the on-chip lens is set so that when the light emitting surface emits light, a state is produced where the convex surface of the on-chip lens appears to have uniform brightness.
    Type: Application
    Filed: May 15, 2012
    Publication date: October 9, 2014
    Applicant: OKI DATA CORPORATION
    Inventor: Hironori Sasaki
  • Patent number: 8851682
    Abstract: A display module includes a light emitting element array and a lens array. The light emitting element array includes a plurality of light emitting elements arranged on a substrate and driven by driving signal to emit light. A lens array is configured to focus light emitted by the respective light emitting elements. The lens array includes a plurality of first lens pillars respectively provided on the light emitting elements, a plurality of second lens pillars respectively provided on the first lens pillars and having curved surfaces at tops thereof, and a plurality of lens portions formed so as to cover the first lens pillars and the second lens pillars, the lens portions having curved surfaces at tops thereof. A driving circuit is provided on the substrate.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: October 7, 2014
    Assignee: Oki Data Corporation
    Inventors: Kenichi Tanigawa, Minoru Fujita