Plural Serial Refractors Patents (Class 362/331)
  • Patent number: 11125397
    Abstract: Optical systems for linear lighting, particularly linear lighting that is installed in a channel, are disclosed, as are light fixtures that use these optical systems. The optical systems have multiple lenses, usually a first lens adapted to be positioned close to a strip of linear lighting installed in a channel, and a second lens adapted to be positioned farther from the strip of linear lighting. The two lenses are optically aligned with one another such that light from the first lens reaches the second lens. The two lenses may, e.g., form an Abbe condenser lens system. In some embodiments, diffusing features may be integrated into one or both lenses to effect light mixing. The multiple lenses may be adapted to physically support one another, and to engage with structure provided by the channel for securing a cover.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: September 21, 2021
    Assignee: Elemental LED, Inc.
    Inventor: Raymond G. Bryan
  • Patent number: 11109762
    Abstract: A user-wearable fluorescence based visualization system comprising a multi-light lamp assembly that provides for the selected output of light using multiple light emitting sources, wherein the outputted light may be tailored to generate response wavelength by the interaction of the emitted light and a tissue illuminated by the emitted light, through the process of fluorescence, and a viewing system that allows a practitioner view the fluorescent light generated by the tissue, and distinguish between healthy and diseased tissues.
    Type: Grant
    Filed: December 26, 2020
    Date of Patent: September 7, 2021
    Assignee: Designs for Vision, Inc.
    Inventors: Liviu Steier, Richard E. Feinbloom
  • Patent number: 11077959
    Abstract: A combined forward navigation and anti-collision light for an aircraft includes a forward navigation light source; a first lens, arranged over the forward navigation light source, with the forward navigation light source and the first lens in operation generating a forward navigation light output; an anti-collision light source; a second lens, arranged over the anti-collision light source, with the anti-collision light source and the second lens in operation generating an anti-collision light output; and a mounting structure, to which the forward navigation light source, the first lens, the anti-collision light source, and the second lens are mounted, wherein the mounting structure provides a common mounting plane, with the forward navigation light source and the anti-collision light source being arranged on the common mounting plane.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: August 3, 2021
    Assignee: GOODRICH LIGHTING SYSTEMS GMBH
    Inventor: Anil Kumar Jha
  • Patent number: 11060695
    Abstract: A lighting element is disclosed that provides a projection of light forming a substantially uniform bright light on a surface a known distance from the lighting element. The lighting elements includes a dome lens that is removably positioned on a light source, such that the light source is retained at a location within a focal length of a projection lens and at or within a focal length of the dome lens. The dome lens magnifies the light outputted by the light source, such that the projected light is brighter than the light generated by the light source.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: July 13, 2021
    Assignee: Designs for Vision, Inc.
    Inventors: Richard E. Feinbloom, Kenneth N. Braganca, Matthew Kenyon
  • Patent number: 10948828
    Abstract: An illumination optical unit for projection lithography serves to illuminate an object field along an illumination light beam path. The illumination optical unit includes an optical rod with end-side entrance and exit areas. The optical rod is designed in such a way that illumination light is mixed and homogenized at lateral walls of the optical rod by multiple instances of total internal reflection. An optical rod illumination specification element is disposed upstream of the optical rod in the illumination light beam path and serves to specify an illumination of the entrance area with a distribution, specified over the entrance area, of an illumination intensity and, simultaneously, an illumination angle distribution. The specified illumination intensity distribution deviates from a homogeneous distribution over the entrance area. This can result in an illumination optical unit including an optical rod, in which a specified illumination setting can be set with lower illumination light losses.
    Type: Grant
    Filed: July 9, 2020
    Date of Patent: March 16, 2021
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Stig Bieling, Markus Deguenther
  • Patent number: 10619822
    Abstract: An art lamp includes a mounting disk, a light source module mounted on the mounting disk, an inner lampshade surrounding the light source module, and an outer lampshade surrounding the inner lampshade. The inner lampshade includes a main body and a plurality of locking portions. The locking portions are locked onto the mounting disk. The main body has a plurality of diamond cones extending downward. Each of the diamond cones is provided with a plurality of light output faces that are inclined and directed toward different directions. The outer lampshade includes a fitting frame, a plurality of ornament units, and a plurality of connecting members. The fitting frame is mounted on the mounting disk. Each of the ornament units includes an outer ring, and a plurality of crystals.
    Type: Grant
    Filed: July 10, 2019
    Date of Patent: April 14, 2020
    Assignee: Dong Guan Jia Sheng Lighting Technology Co., Ltd. China
    Inventor: Kevin Hsu
  • Patent number: 10546979
    Abstract: A display includes a light source, wherein the light source includes a base plate, a light emitting unit, and a light converting component. The light emitting unit is disposed on the base plate and has a first top surface. The light converting component covers the light emitting unit and has a second top surface and plural light converting elements, wherein the first top surface is located between the second top surface and the base plate. The light converting component includes a first region, a second region, and a third region from the first top surface to the second top surface, wherein a first sulfur content of the first region is less than a second sulfur content of the second region, and the first sulfur content of the first region is less than a third sulfur content of the third region.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: January 28, 2020
    Assignee: InnoLux Corporation
    Inventors: Jia-Yuan Chen, Tsung-Han Tsai, Hsiao-Lang Lin, Jui-Jen Yueh, Kuan-Feng Lee
  • Patent number: 10527254
    Abstract: A lighting element is disclosed that provides a projection of light forming a substantially uniform bright light on a surface a known distance from the lighting element. The lighting elements includes a dome lens that is removably positioned on a light source, such that the light source is retained at a location within a focal length of a projection lens and at or within a focal length of the dome lens. The dome lens magnifies the light outputted by the light source, such that the projected light is brighter than the light generated by the light source.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: January 7, 2020
    Assignee: Designs for Vision, Inc.
    Inventors: Richard E. Feinbloom, Kenneth N. Braganca, Matthew Kenyon
  • Patent number: 10413191
    Abstract: A housing containing an electrical energy source is coupled between a first end cap comprising a control and an interstitial member comprising an LED selectively electrically couplable to the electrical energy source by the control, and a second end cap coupled to the interstitial member comprises an optical filtering component in optical alignment with light emitted by the LED. At least a portion of an exterior of at least one of the housing, the first end cap, the interstitial member, and the second end cap may have a cross-sectional shape that is not substantially circular. The end caps, housing, interstitial member, and optical filtering component may each be sealingly interconnected. A method of using the apparatus may comprise directing light emitted by the apparatus into a human oral cavity without inserting the apparatus into the human oral cavity.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: September 17, 2019
    Assignee: FORWARD SCIENCE TECHNOLOGIES, LLC
    Inventors: Brian Pikkula, Robert Whitman
  • Patent number: 10247384
    Abstract: A lighting element is disclosed that provides a projection of light forming a substantially uniform bright light on a surface a known distance from the lighting element. The lighting elements includes a dome lens that is removably positioned on a light source, such that the light source is retained at a location within a focal length of a projection lens and at or within a focal length of the dome lens. The dome lens magnifies the light outputted by the light source, such that the projected light is brighter than the light generated by the light source.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: April 2, 2019
    Assignee: Designs for Vision, Inc.
    Inventors: Richard E. Feinbloom, Kenneth N. Braganca, Matthew Kenyon
  • Patent number: 10151866
    Abstract: A touch-sensitive apparatus comprises a light transmissive panel (1), an illumination arrangement and a detection arrangement. The illumination arrangement is configured to couple light into the panel (1) via an incoupling site (5B) such that the light propagates by total internal reflection (TIR) in opposite top and bottom surfaces (4, 5) of the panel and such that an object touching the top or bottom surface (4, 5) causes a change in the propagating light. The detection arrangement comprises a light detector arranged to detect the change in the propagating light. A compact and robust incoupling site (5B) is defined by a sheet-like micro-structured surface portion (22) which is fixedly arranged on one of the top and bottom surfaces (4, 5) and configured to transmit light having an angle of incidence that enables light propagation by TIR inside the panel (1).
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: December 11, 2018
    Assignee: FlatFrog Laboratories AB
    Inventors: Thomas Craven-Bartle, Hakan Bergstrom
  • Patent number: 10042107
    Abstract: An illumination structure for decoration includes a light-guiding member and a decorative member on a surface of the light-guiding member. The decorative member has a plurality of lighting parts configured to light in a dot form. A lens layer is between the light-guiding member and the decorative member and includes a plurality of convex lens parts, each of the convex lens parts facing at least one of the lighting parts. Each of the convex lens parts has a convex lens surface on a surface facing the light-guiding member, the convex lens surface being configured to curve and protrude toward the light-guiding member and focus light adjacent to the lighting parts.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: August 7, 2018
    Assignee: CALSONIC KANSEI CORPORATION
    Inventors: Yuuta Okabe, Tooru Ookanda
  • Patent number: 10035455
    Abstract: A light-emitting part for a vehicle having a light-emitting region is described. The light-emitting part includes an irradiation body which i) includes a dot-shaped light source and a planar plate-shaped light guide body that emits light from the dot-shaped light source, and ii) emits the light toward a front side of the light-emitting region. The light-emitting part includes a curved plate-shaped transmissive body disposed so that the light emitted from the irradiation body is transmitted through the curved plate-shaped transmissive body. The curved plate-shaped transmissive body includes portions which are separated from the planar plate-shaped light guide body by different gaps. Also included is a surface brightness adjusting portion which adjusts a brightness of an outer surface of the light-emitting region in response to a size of the gap and a distance from the dot-shaped light source.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: July 31, 2018
    Assignee: TS Tech Co., Ltd.
    Inventors: Noriyuki Yamato, Shoji Kotsuka, Yoshiaki Ito
  • Patent number: 9827898
    Abstract: A vehicle light assembly with multiple light arrays. The light assembly includes a base housing having a recess and an upstanding edge forming an open top. A light mounting board in the recess has a lower side and an opposed upper side. A first array of lights on the upper side of the mounting board projects light towards the open top. A second array of lights on the lower side of the mounting board projects lights away from the open top. A reflector received in the recess reflects light projected from the second array toward the open top.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: November 28, 2017
    Assignee: Optronics International, LLC
    Inventor: Chun-Chih Chen
  • Patent number: 9732936
    Abstract: A lamp includes an extended planar light source, and an optical element arranged with the light source, wherein the optical element comprises an outer surface having an indented cusp substantially over the light source. A lamp includes an extended planar light source, and an optical element arranged with the light source, wherein the optical element comprises an outer surface having a portion at a peripheral edge comprising a curvature configured to redirect light emitted from the light source by total internal reflection.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: August 15, 2017
    Assignee: BRIDGELUX INC.
    Inventors: Xiaolu Chen, Wenhui Zhang, Scott West
  • Patent number: 9657916
    Abstract: A lighting device is disclosed, and includes at least one lighting element for emitting light, an inner diffuser, and an outer diffuser. The inner diffuser defines a lighting cavity and an outer surface, where the at least one lighting element is located within the lighting cavity. The outer diffuser surrounds the inner diffuser. The outer diffuser defines an inner surface. The outer surface of the inner diffuser and the inner surface of the outer diffuser cooperate together to define a space between the inner diffuser and the outer diffuser. The inner diffuser and the outer diffuser spread and blend the light emitted by the at least one lighting element.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: May 23, 2017
    Assignee: TECHNICAL CONSUMER PRODUCTS, INC.
    Inventors: Andrew Hussey, Timothy Chen, George Uhler, Andrew Forchione
  • Patent number: 9588279
    Abstract: A light guide plate includes a light exit surface, a reflection surface opposite to the light exit surface, at least one light incidence surface connecting to the light exit surface and the reflection surface, and two side surfaces. The reflection surface includes first and second minute projection structures projecting toward interior of the light guide plate, the second minute projection structures being arranged between the first minute projection structures and the two side surfaces of the light guide plate. The first minute projection structures each include at least two side faces coated with a high reflectivity material and forming at least one included angle pointing toward the at least one light incidence surface. The second minute projection structures each include a side face coated with a high reflectivity material and defining two angles, which are less than 90°, with respect to a light incidence surface and a side surface.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: March 7, 2017
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Gege Zhou
  • Patent number: 9494727
    Abstract: Provided are a condensing film, a backlight unit including the condensing film, and a display device including the backlight unit. The condensing film includes a plurality of lens structures extending in an extension direction on a surface thereof, a first protrusion part disposed on the lens structures and comprising a plurality of protrusions arrayed in the extension direction of the lens structure, and a second protrusion part disposed on the lens structures and comprising a plurality of protrusions arrayed in an array direction forming a certain angle with the extension direction of the lens structure.
    Type: Grant
    Filed: April 12, 2011
    Date of Patent: November 15, 2016
    Assignee: LG Chem, Ltd.
    Inventors: Kyung-Mo Kim, Soo-Hee Jung, Sang-Choll Han
  • Patent number: 9476570
    Abstract: A lens for distribution of light predominantly toward a preferential side from a light emitter having an emitter axis and defining an emitter plane. The lens has an emitter-adjacent base end forming an emitter-receiving opening to an emitter-surrounding cavity defined by an inner surface which includes a front sector centered on the preferential side and a back sector centered on the non-preferential side radially opposite the preferential side. The front and back sectors differ in their respective configurations for refracting light from the emitter. The lens further includes an primary back surface positioned to receive light from at least a portion of the inner-surface back sector and configured for total internal reflection (TIR) thereof. The inner-surface back sector and the primary back surface extend along substantially elliptical cross-sections in planes substantially parallel to the emitter plane.
    Type: Grant
    Filed: January 7, 2013
    Date of Patent: October 25, 2016
    Assignee: Cree, Inc.
    Inventors: Kurt S. Wilcox, Christopher Strom
  • Patent number: 9374985
    Abstract: A method of manufacturing multiple light emitting diode lighting assemblies each having a different initial light output is provided. A first heat sink is manufactured and a first platform assembly with a plurality of light emitting diodes is formed with an automated device. The automated device selects a first predetermined lumen output. A second heat sink is then manufactured using the same manufacturing process, and a second platform assembly with a plurality of light emitting diodes is formed with the automated device. During this time, the automated device selects a second predetermined lumen output based on information inputted into the automated device.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: June 28, 2016
    Assignee: ONCE Innovations, Inc.
    Inventor: Zdenko Grajcar
  • Patent number: 9318671
    Abstract: An LED package and method for LED packaging is disclosed. In one embodiment, an LED package includes a carrier substrate having a predefined surface area, an LED device bonded to the carrier substrate, the LED device having a footprint area of at least fifty percent of the predefined surface area of the carrier substrate, and an encapsulant lens having a top surface inclined inwardly at an angle in the range of about 10° to about 140°. In one embodiment, the top surface of the encapsulant lens layer has a concave cone shape. In one embodiment, a wafer level packaging process includes forming an encapsulant lens layer portion having a top surface inclined inwardly at an angle in the range of about 10° to about 140° on each of a plurality of LED devices bonded to a carrier substrate wafer.
    Type: Grant
    Filed: April 18, 2014
    Date of Patent: April 19, 2016
    Assignee: Toshiba Corporation
    Inventors: Kai Liu, Chao-Kun Lin
  • Patent number: 9229146
    Abstract: A backlight module including a light guide plate is disclosed. The light guide plate has a light emitting plane, a bottom plane opposite to the light emitting plane and a light incident plane connecting the light emitting plane and the bottom plane, a plurality of arc protrusions disposed on the first light incident plane; and a transparent layer disposed upon each of the arc-protrusions. In the backlight module, an LED bar is disposed near to the light incident plane of the light guide plate, and the LED bar has a plurality of LED light sources corresponding to the arc-protrusions of the light guide plate, respectively.
    Type: Grant
    Filed: November 18, 2013
    Date of Patent: January 5, 2016
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Hu He
  • Patent number: 9217552
    Abstract: A lighting device (100) includes: a surface light source (1); a first lens (L1) having a first focal point (F1), the first lens being provided on the light exit surface side of the surface light source; and a second lens (L2) having a second focal point (F2), the second lens being provided on a light exit surface side of the first lens, the surface light source, the first lens, and the second lens being configured such that a first virtual image (I1) is formed by the first lens and a second virtual image (I2) is formed by the second lens, wherein the first virtual image (I1) is formed between the second focal point (F2) and the first lens, the second focal point (F2) is on a side opposite to the light source side relative to a predetermined focal position f?, and at least either of a light entry surface or a light exit surface of the first lens or the second lens includes a non-revolution surface (SO) as a lens surface, and a plurality of boundary lines (B1-B4) whose curvatures vary discontinuously are provid
    Type: Grant
    Filed: July 2, 2013
    Date of Patent: December 22, 2015
    Assignees: Sharp Kabushiki Kaisha, Tohoku University
    Inventors: Tatsuo Uchida, Yoshito Suzuki, Tohru Kawakami, Takahiro Ishinabe, Katsunori Ehara, Yoshihiro Hashimoto, Toshiki Matsuoka, Kozo Nakamura, Yasuhisa Itoh, Yoshitaka Yamamoto, Yutaka Ishii
  • Patent number: 9188306
    Abstract: An optical assembly of alert light has two optical halves obtained by symmetrically dividing the optical assembly along an optical reference plane. Each optical half has a base with one side corresponding to the optical reference plane and having a junction surface. A light entrance portion and a light exit portion are on two opposite sides of the optical reference plane. The two optical halves are assembled to form the optical assembly of alert light with the junction surfaces of the two optical halves attached to each other. Accordingly, the structural simplification of the divided optical halves facilitates the molding of the optical halves and reduces limitations in manufacturing the optical halves, thereby satisfying the demands of different light form, light projection angles and product shapes in generating diversified alert lights.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: November 17, 2015
    Inventor: Neng-Chen Yeh
  • Patent number: 9164320
    Abstract: A backlight assembly includes a light emitting unit, a reflective sheet, and a bottom cover. The light-emitting unit includes a light source emitting light and an optical system. The optical system is spaced apart from the light source in a direction in which the light emitted from the light emitting unit initially travels. The optical system has a curved shape that reflects a portion of the light emitted from the light source and transmits a remaining portion of the light emitted from the light source. The reflective sheet is disposed under the light-emitting unit to re-reflect the light reflected by the optical system. The bottom cover accommodates the light emitting unit and the reflective sheet. Thus, the light-spreading angle of the light-emitting unit becomes wide.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: October 20, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dongmin Yeo, Sangheon Ye
  • Patent number: 9039249
    Abstract: A backlight module includes a laser light source, a light guiding board located at a side of the laser light source, a first lens and a second lens both located at a light path of light beams emitted from the laser light source. The laser light source includes one laser diode or a plurality of laser diodes. The light guiding board includes a light incident face and a light emerging face. The first lens firstly converges and then diverges the light beams emitted from the laser light source. The second lens changes the light beams passed through the first lens to be parallel light beams. The parallel light beams have a larger width than that of the light beams just emitted from the laser light source. The parallel light beams enter the light guiding board via the light incident face of the light guiding board.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: May 26, 2015
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: Po-Chou Chen
  • Publication number: 20150115383
    Abstract: According to one embodiment, an optical device includes a plurality of optical elements arrange in array. At least of the optical elements includes an optical layer constituted by a plurality of patterns. The plurality of patterns are formed by a layered body including metal layers and a dielectric layer interlayered between the metal layers, and formed as a plurality of regularly-arranged loop-like patterns with a density decreasing from the center toward the periphery of the loop.
    Type: Application
    Filed: January 21, 2014
    Publication date: April 30, 2015
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventor: Koichi KOKUBUN
  • 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
  • Patent number: 8979316
    Abstract: A LED array spot illuminator for providing light along an optical axis comprises a substrate and at least one array of multiple LED chips without individual packaging supported by the substrate, wherein the LED chips emit light within the same or different wavelength ranges and are distributed laterally with respect to the axis over a light-emitting area. The LED chips have light emitting surfaces for emitting light in directions transverse to the area. An optical device collects and directs light emitted by the LED chips of the at least one array along the axis. An aperture passes the light emitted by the LED chips of the at least one array along the axis, wherein light collected by the optical device and passed by the aperture forms a beam of light illuminating a spot. Electric current is supplied to the multiple LED chips, causing them to emit light. Light emitted by the multiple LED chips that passed through the optical device and the aperture form a beam of light illuminating a spot.
    Type: Grant
    Filed: August 23, 2011
    Date of Patent: March 17, 2015
    Assignee: DiCon Fiberoptics Inc.
    Inventors: Jeffrey B. Lee, Brian I-Yuan Chiang, Han-Kun Ho
  • 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
  • Patent number: 8979317
    Abstract: An illumination device (1) has a light-emitting element (6b), and a luminous flux control member (6c) that includes a first lens (10) and a second lens (20). The first lens (10) and the second lens (20) are assembled such that a first surface (10c) and a second rear surface (20a) are in contact, or such that a minute gap exists between the first surface (10c) and the second rear surface (20a). A first conical concave surface (10d) having its apex on the central axis (C) is formed by indenting a first rear surface (10a). A second concave surface (20d), having its apex on the central axis (C) and having a curved shape the curvature of which decreases as the distance from the central axis increases, is formed by indenting a second surface (20c).
    Type: Grant
    Filed: January 17, 2012
    Date of Patent: March 17, 2015
    Assignee: Enplas Corporation
    Inventor: Masato Nakamura
  • Publication number: 20150062905
    Abstract: A method for manufacturing an optical lens includes providing an uncured light diffusion body, the light diffusion body comprising a first optical surface located at a bottom thereof, and a second optical surface located at a top thereof and arranged oppositely to the first optical surface, the light diffusion body defining a receiving cavity recessed from a central portion of the second optical surface toward the first optical surface; introducing a light transmissive material doped with diffusion particles into the receiving cavity to a desired thickness; and solidifying the light transmissive material and the light diffusion body. An optical lens manufactured by the method and a light source module incorporating the optical lens are also provided.
    Type: Application
    Filed: August 27, 2014
    Publication date: March 5, 2015
    Inventor: YUNG-LUN HUANG
  • Patent number: 8967823
    Abstract: Combination light diffusion with either sound diffusion or absorption is provided in a single lighting fixture, to provide uniform luminosity and sound control. The traditional flat light diffuser is replaced with a translucent acoustical element which either diffuses sound or absorbs the sound. The sound diffuser topology includes random surfaces, geometrical shapes, number theoretic diffusers or optimized rectilinear or curvilinear surfaces. The translucent sound absorber includes microperforated or microslit panels, as well as translucent fabrics and microperforated, translucent wood veneers.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: March 3, 2015
    Inventor: Peter D'Antonio
  • Publication number: 20150049463
    Abstract: A lens for an LED backlight module includes a main lens body and a diffusion structure consisting of a plurality of micro lenses. The main lens body includes a light incident face for receiving light from an LED light source and a light exit face opposite to the light incident face thereof. Light leaves the lens from the light exit face. The micro lenses of the diffusion structure are formed on the light exit face of the main lens body. Each micro lens is annular and has a generally triangular cross section. Each micro lens includes a first light scattering surface and a second light scattering surface intersecting with the first light scattering surface. The micro lenses are arranged in a series of concentric circles with regard to a center of the lens. A backlight module source incorporating the lens and the LED light source is also provided.
    Type: Application
    Filed: November 20, 2013
    Publication date: February 19, 2015
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: LI-YING WANG HE, YI HUNG
  • Patent number: 8950880
    Abstract: A lighting device and a photographing system including the same are provided. The lighting device including a plurality of light emitting devices which emit lights of wavelengths within the visible ray domain; and an opening arranged in front of the plurality of light emitting devices, wherein the plurality of light emitting devices are arranged in a medium having a low refraction index, and solid structures that are formed of a medium having a high refraction index, are capable of transmitting visible rays therethrough, and are periodically formed on a portion of the opening to face the plurality of light emitting devices, wherein the solid structures are formed in a period such that lights emitted by the plurality of light emitting devices are not reflected.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: February 10, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Masataka Hamada
  • Publication number: 20150036347
    Abstract: A compound lens includes a first lens and a second lens coupled to the first lens. The first lens has a light incident face and a light exit face opposite to the light incident face thereof. The first lens defines a recess at a center of the light exit face thereof. The second lens has a refractive index lower than that of the first lens. The second lens is received in the recess of the first lens and a light incident face of the second lens directly contacts the light exit face of the first lens. A light emitting diode light source device incorporating the compound lens is also provided.
    Type: Application
    Filed: August 22, 2013
    Publication date: February 5, 2015
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: CHAU-JIN HU, FENG-YUEN DAI, YUNG-LUN HUANG
  • Publication number: 20150029722
    Abstract: The present disclose relates to a lens unit. The lens unit includes a first lens and a second lens. The first lens includes a first light input surface, a first light output surface opposite to the first light input surface and a first side surface connected to the first light output surface. The first lens has a first refractive index. The second lens defines a cavity at a light input surface thereof for receiving the first lens. The second light output surface of the second lens contacts the first light output surface and the first side surface of the first lens. The second lens has a second refractive index which less than the first refractive index. The present disclose also relates to a light source module with the lens unit.
    Type: Application
    Filed: October 16, 2013
    Publication date: January 29, 2015
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: LI-YING WANG HE
  • Patent number: 8939614
    Abstract: A pattern forming apparatus for a light guide panel is provided. The apparatus may include a pattern design system, a control system, a header moving unit including an XY moving unit and a header unit, a laser system, beam splitters, and an optical unit. The pattern design system may have an input of data on a pattern. The control system may connect with the pattern design system and transmits a position signal. The XY moving unit may mechanically move up/down and left/right in response to the position signal. The header unit may be coupled with the XY moving unit and reflects a scanned laser beam. The laser system may output a laser beam by a pulse signal. The beam splitters may split a laser beam into two or more laser beams. The optical unit may reflect and collect the two or more laser beams.
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: January 27, 2015
    Assignee: HB Technology Co., Ltd.
    Inventors: Deukil Park, Choongyop Rhew, Kiyong Baek, Daisoung Park
  • Patent number: 8899792
    Abstract: Embodiments described herein provide an optical system having a light source (e.g., LED) and a high numerical aperture multi-element optical stack. According to one embodiment, the optical stack can reimage an entrance aperture. The multi-element optical stack can include a number of optical elements forming a series of lenses. The series of lenses comprises, a first lens positioned to receive light emitted in a first beam angle and a second lens more distal from the LED than the first lens, the second lens defining a second lens exit aperture that has at least a minimum area necessary to conserve radiance for the emission beam angle in air. The lenses in said series of lenses are configured, in combination, to successively reduce a beam angle of light from the first beam angle to the emission beam angle.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: December 2, 2014
    Assignee: Illumitex, Inc.
    Inventors: Dung T. Duong, Robert McAlister, Randall E. Johnson
  • 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
  • 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
  • Patent number: 8870399
    Abstract: Provided is a backlight unit. The backlight unit includes a light source, an optical member configured to uniformly distribute light emitted from the light source, and at least two condensing films configured to condense light from the optical member. Hetero-conic lenses are two-dimensionally arranged on a surface of each of the condensing films, and each of the hetero-conic lenses is formed by combining a first conic lens expressed by Formula (1) below and a second conic lens expressed by Formula (2) below: y = H 1 - x 2 / r 1 1 + 1 - ( 1 + k 1 ) ? ( 1 / r 1 ) 2 ? x 2 ? ? ( 0 ? y ? y 0 ) Formula ? ? ( 1 ) y = H 2 - x 2 / r 2 1 + 1 - ( 1 + k 2 ) ? ( 1 / r 2 ) 2 ? x 2 + y 0 ? ? ( y 0 ? y ? H 2 ) .
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: October 28, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Yune-Hyoun Kim, Kwang-Seung Park, Sang-Choll Han, Sang-Eun An
  • Publication number: 20140293607
    Abstract: A lens module for divergently refracting light from an LED includes a first lens and a second lens matching with the first lens. The first lens is received in the second lens, and the first lens is spaced from the second lens. The LED is received in the first lens. A central axis of the first lens coincides with a central axis of the second lens. Light emitted from the LED and into the lens module is refracted out by the first lens and the second lens. The first and second lenses have different capabilities of refraction. This disclosure also relates an LED lighting module with the lens module.
    Type: Application
    Filed: October 18, 2013
    Publication date: October 2, 2014
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: LI-YING WANG HE
  • Patent number: 8845129
    Abstract: A method and system for providing an array of illumination modules is disclosed. A modular illumination system can comprise a one-dimensional array, a two-dimensional array, or other shapes and arrangements of the illumination modules. Adjacent illumination modules in the array can be attached to one another via a system of connectors. Each illumination module can comprise at least two connectors, one feeding electricity to a neighboring illumination module and one receiving electricity from a power source. The power source can comprise another neighboring illumination module or a power supply circuit that feeds the array of illumination modules or a subset of illumination modules in the array. Each illumination module can comprise a circuit board, at least one LED, and an optical system that manages light.
    Type: Grant
    Filed: July 23, 2012
    Date of Patent: September 30, 2014
    Assignee: Cooper Technologies Company
    Inventors: Ronald G. Holder, Matthew A. Davis
  • Publication number: 20140268802
    Abstract: An optical device for transforming an input light distribution from an LED light source to provide an omni-directional output light distribution for solid-state lighting is disclosed. The optical device has a conical form, comprising first and second coaxial cones of different refractive index, defined by coaxial inner and outer cone surfaces, which converge from a cone base to a rounded tip at the apex. Preferably, each of the inner and outer cone surfaces comprises a plurality of conical facets defining a grating structure. The inner cone, i.e. air cavity, is directly coupled to an LED emitter area. Cone angles and spacings of conical facets, defining inner and outer gratings, are tailored to reshape a predetermined input light distribution. Apertures assist in heat dissipation. A lightweight, compact device with high transmission efficiency can be manufactured at low cost by one-step injection molding from an optical-grade polymer, such as PMMA.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: LEAPFROG LIGHTING
    Inventors: JIE SUN, CHRISTOPHER HART, STEPHEN NAOR
  • Publication number: 20140247602
    Abstract: A luminaire including a light engine having a light source and a housing and a light-diffusing attachment that includes a frame secured to the housing of the light engine, a refracting lens supported by the frame, and a diffuser supported by the frame.
    Type: Application
    Filed: March 4, 2013
    Publication date: September 4, 2014
    Applicant: ELECTRONIC THEATRE CONTROLS, INC.
    Inventors: David Kinzer, Frank Tornyai, Sunya Nimityongskul
  • Patent number: 8814410
    Abstract: A lighting assembly has an edge-lit light guide having a light output surface through which light is extracted by light extracting optical elements. The extracted light has a maximum intensity at low light ray angles relative to the light output surface. A light redirecting member has an arrangement of light redirecting optical elements configured to redirect the extracted light incident thereon to provide a pattern of redirected light. A light focusing member has light focusing optical elements having an angular acceptance range. The redirected light has light ray angles within the angular acceptance range of the light focusing optical elements and is perceived as a pattern of light. The extracted light not redirected by the light redirecting member has light ray angles outside the angular acceptance range of the light focusing optical elements and is not perceived, or is perceived as background light.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: August 26, 2014
    Assignee: Rambus Delaware LLC
    Inventors: Timothy A. McCollum, Fumitomo Hide, Robert M. Ezell
  • Patent number: 8807759
    Abstract: A projection apparatus includes an optical engine base, a light source, a light valve, a projection lens, and an array lens module. The light source, the light valve, and the projection lens are installed to the optical engine base. The array lens module includes a frame body fixed to the optical engine base, a first array lens, and a second array lens. One of the first array lens and the frame body has a first positioning hole while the other one has a first positioning pillar inserted into the first positioning hole. One of the second array lens and the frame body has a second positioning hole while the other one has a second positioning pillar inserted into the second positioning hole. A light beam emitted by the light source passes through the first array lens, the second array lens, and the light valve sequentially to reach the projection lens.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: August 19, 2014
    Assignee: Coretronic Corporation
    Inventor: Shiuan-Ting Lin
  • Patent number: 8807809
    Abstract: A lighting device for vehicles with a plurality of light sources arranged like a matrix in a light generation level, with a light forming optic unit arranged in front of the light sources in a primary direction of emission, and with another optic unit arranged between the light forming optic unit and the light sources, comprising a plurality of optic elements, with the optic elements being arranged like a matrix and one optic element each being allocated to a light source, with the additional optic unit being embodied as a widening optic unit with a plurality of band reflector segments arranged intersecting to form polygonal reflectors as optic elements and with a plurality of light forming elements, which are arranged like a matrix corresponding to the light sources and arranged between the light sources and the polygonal reflectors.
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: August 19, 2014
    Assignee: Hella KGaA
    Inventor: Gerhard Kloos