Plural Separate Reflectors Or Separate Sections Patents (Class 362/346)
  • Patent number: 8662711
    Abstract: A lighting device is provided. The lighting device includes an optical reflection plate, a light holder, and at least one light source. The optical reflection plate includes a non-reflective region located in the center of the optical reflection plate, and a plurality of reflection regions surrounding the non-reflective region in sequence. The light holder is located on the non-reflective region of the optical reflection plate and includes a circle side-light concave portion. A light-emitting opening of the side-light concave portion faces to the reflection regions. The light source is located in the side-light concave portion of the light holder. When the light source emits light, the light emitted from the light source is reflected by the reflection regions.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: March 4, 2014
    Assignee: Lextar Electronics Corporation
    Inventors: Sheng-Ping Chen, Chi-Cheng Cheng, Chun-Hung Liu, Shang-Jung Hsieh
  • Publication number: 20140056008
    Abstract: A rear combination lamp for a vehicle is disclosed, in which facets on a reflective surface impart relatively large angular deviations to their respective reflected beams. Reflected light from each facet is only visible over a particular angular range. The angular ranges for all facets overlap only in a predetermined manner, so that at a given viewing angle, light from only particular facets is visible. The appearance of the rear combination lamp varies as a function of viewing direction. As a viewing angle changes, light from certain facets becomes visible, and light from other facets becomes invisible. This changing subset of which facet reflections are visible produces a sparkling or twinkling effect from the rear combination lamp. In some designs, the sparkling can take on a pattern that moves across the rear combination lamp, as the viewing angle changes.
    Type: Application
    Filed: August 22, 2012
    Publication date: February 27, 2014
    Applicant: OSRAM SYLVANIA INC.
    Inventors: Lawrence M. Rice, Sharon L. Ernest
  • Patent number: 8657458
    Abstract: A lighting device, uneven brightness of which is suppressed, is provided. A lighting device of the present invention includes LEDs 17, a chassis 14 that houses the LEDs 17 therein, and a chassis reflection sheet 22 that is provided on an inner surface of the chassis 14 and configured to reflect light from the LEDs 17. The LEDs 17 are provided on a bottom plate 14a of the chassis 14. The chassis reflection sheet 22 has a bottom portion 31 that extends along the bottom plate 14a and slanted portions 32 that extend from a periphery of the bottom portion 31. The slanted portions 32 slant to a direction in which the LED emits light with respect to the bottom portion. A boundary L between the bottom portion 31 and the slanted portions 32 is formed in a nonlinear shape in a plan view.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: February 25, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Shinji Matsumoto
  • Patent number: 8646929
    Abstract: Disclosed are a backlight unit and a display apparatus using the same. The backlight unit includes first and second reflectors, a light source module, an optical member spaced apart from the second reflector, a first cover to come into contact with the second reflector and optical member, a second cover coupled to the first cover to support the light source module, and a third cover coupled to the first and second covers. The first cover includes a bottom plate, first lateral plates facing each other with respect to a first direction, second lateral plates facing each other in a second direction, a first coupling portion disposed at each first lateral plate and coupled to the second cover, a second coupling portion disposed at each second lateral plate and coupled to the optical member, and a third coupling portion disposed at each second lateral plate and coupled to the third cover.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: February 11, 2014
    Assignee: LG Innotek Co., Ltd.
    Inventors: Jung Ho Lee, Sung Yong Park
  • Patent number: 8641239
    Abstract: A lighting assembly utilizing a reflective body for use with a light source to uniformly disperse the light from the light source. The reflective body includes a lower array of first reflectors arranged about a central axis. Each of the first reflectors form an obtuse angle with the next adjacent first reflector. The reflective body also includes an upper array of second reflectors arranged about the central axis. Each of said second reflectors include a left face and a right face. The upper array defines obtuse angles between next adjacent second reflectors. Additionally, reflex angles are defined between the left and right faces of the second reflectors. The combination of angles evenly disperse the light supplied from the light source to provide a pleasant glow for illuminating an area below the lighting assembly without causing hot spots.
    Type: Grant
    Filed: January 8, 2010
    Date of Patent: February 4, 2014
    Assignee: Best Lights, Inc.
    Inventor: Gary D. Yurich
  • Publication number: 20140016301
    Abstract: A method and apparatus for effectively controlling light propagation are presented. The apparatus includes a muntin having reflective walls arranged to form a plurality of openings, and a cavity sheet disposed on the muntin. The muntin is configured to assemble with an array of light sources. The cavity sheet has a plurality of pinholes and is configured to assemble with the muntin such that the reflective walls align with areas between the pinholes. The light sources, the muntin, and the cavity sheet form light mixing cavities and light sources within each light mixing cavities may be individually controlled. The light mixing cavities allow generation of localized and uniform light.
    Type: Application
    Filed: July 12, 2012
    Publication date: January 16, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventor: Candice Hellen Brown Elliott
  • Patent number: 8602606
    Abstract: Methods and apparatus for a free space coupler to receive light from a laser via air. In one embodiment, a system comprises a laser source, a mirror optically aligned to the laser source, a first mount to control a position of the mirror, a free-space coupler to receive light from the mirror, a beam splitter to receive light exiting the coupler, a first detector to receive light reflected from the beam splitter, a second mount coupled to the first detector and to the coupler to control a position of the coupler from information from the first detector, and a second detector to receive light reflected by the coupler and the mirror, wherein the second detector is coupled to the first mount for positioning the mirror with respect to the coupler.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: December 10, 2013
    Assignee: Raytheon Company
    Inventors: William J. Cottrell, Nathan G. Kennedy
  • Publication number: 20130322094
    Abstract: A light guide casing is used for transmitting a light beam from an indicating lamp. The light guide casing includes a light inputting surface, a light outputting surface, and a first reflective surface. The light outputting surface includes a first plane and a second plane. After the light beam from the indicating lamp is transmitted through the light inputting surface, a first portion of the light beam is reflected to the first plane of the light outputting surface by the first reflective surface, and a second portion of the light beam is transmitted to the second plane of the light outputting surface.
    Type: Application
    Filed: August 15, 2012
    Publication date: December 5, 2013
    Applicant: Primax Electronics Ltd.
    Inventor: Wei-Hsun Hsu
  • Patent number: 8596830
    Abstract: An apparatus where an indirect lighting system is adapted to direct light to a target. The primary optics are arranged to eject a flat beam of uniform intensity light onto an assembly of fractal reflector modules that reflect the beam to the target. The primary optics comprise a light source, and a reflector of stepped facets, located on the surface of a parabolic reflector; the shape and location of each facet being calculated to provide a uniform intensity flat beam.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: December 3, 2013
    Assignee: Hella KGAA Hueck & Co.
    Inventor: Urbain du Plessis
  • Patent number: 8585214
    Abstract: A video projector including a plurality of light sources is configured to project and display an image using light emitted from at least one of the light sources so that each light source is replaceable while other light sources are lit. The video projector includes a light source replacement detection unit that detects replacement of one or more light sources, a memory unit that stores information related to a combined lighting state of the light sources, and a control unit that changes the combined lighting state of the light sources when the replacement of at least one light source is detected without displaying, on the projected image, a setting screen used to change the combined lighting state.
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: November 19, 2013
    Assignee: SANYO Electric Co., Ltd.
    Inventor: Kazunori Kotani
  • Patent number: 8587747
    Abstract: A backlight assembly capable of reducing light loss is presented. The backlight assembly includes a plurality of substrate units and a plurality of reflective members on the substrate units arranged to form an adjacent area where two reflective members are closest to each other. The adjacent area is on one of the substrate units. A display device incorporating the backlight assembly is also presented.
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: November 19, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventor: Yong-Il Kim
  • Publication number: 20130294086
    Abstract: Embodiments of a reflector and a lamp that utilizes the reflector and light-emitting diode (LED) devices to generate an optical intensity distribution substantially similar to that of a conventional incandescent light bulb. The lamp can include a heat dissipating assembly with one or more heat dissipating elements disposed annularly about the envelope and spaced apart from the envelope in order to promote convective airflow. In one embodiment, the reflector operates as a total internal reflection (TIR) lens.
    Type: Application
    Filed: December 6, 2012
    Publication date: November 7, 2013
    Applicant: GE LIGHTING SOLUTIONS, LLC.
    Inventors: Mark J. Mayer, Glenn Howard Kuenzler, JEYACHANDRABOSE CHINNIAH, Benjamin Lee Yoder
  • Patent number: 8569944
    Abstract: Disclosed herein is a light emitting device. The light emitting device includes a light emitting diode disposed on a substrate to emit light of a first wavelength. A transparent molding part encloses the LED, a lower wavelength conversion material layer is disposed on the transparent molding part, and an upper wavelength conversion material layer is disposed on the lower wavelength conversion material layer. The lower wavelength conversion material layer contains a phosphor converting the light of the first wavelength into light of a second wavelength longer than the first wavelength, and the upper wavelength conversion material layer contains a phosphor converting the light of the first wavelength into light of a third wavelength, which is longer than the first wavelength but shorter than the second wavelength. Light produced via wavelength conversion is prevented from being lost by the phosphor. Light emitting devices including a multilayer reflection minor are also disclosed.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: October 29, 2013
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Hyuck Jung Choi, Kwang Il Park
  • Publication number: 20130279171
    Abstract: A reflector for flush installed lighting devices, adapted to eliminate possible undesired spots of light and unevenness of the produced light beam, said reflector being provided with a further reflective element, arranged on the surface of said reflector and essentially parallel to the lying plane of the greater opening of said reflector. Said further reflective element will preferably have a circular segment shape and dimensions which may vary according to the dimensions of said reflector and according to the inclination that the lighting assembly may assume with respect to the main body of the flush installed lighting device.
    Type: Application
    Filed: March 18, 2013
    Publication date: October 24, 2013
    Inventor: Massimo Gattari
  • Publication number: 20130272026
    Abstract: A lateral light source processing module and a lighting device with the lateral light source processing module are provided. The lateral light source processing module includes a first surface and a second surface opposed to the first surface. In addition, plural saw-toothed structures are formed on the second surface. An included angle between any surface of any saw-toothed structure and a normal line perpendicular to the first surface is a specified angle. Consequently, the light beams projected on the saw-toothed structure are subject to total internal reflection. According to the specified angle, the reflected light beams are propagated along a corresponding direction.
    Type: Application
    Filed: June 22, 2012
    Publication date: October 17, 2013
    Applicant: E-LON OPTRONICS CO., LTD.
    Inventor: MING TANG YAO
  • Patent number: 8556472
    Abstract: Light reflectors and flood lighting systems for illumination and lighting. Each light reflector may include a housing having a plurality of facets, each of the plurality of facets having a shape that is a portion of separate ellipses sharing a common focus. First and second surfaces are defined by first and second planes intersecting along a line within a volume of the body. A light source is positioned near the first surface, at the common focus, and is angularly oriented thereto such that light emitted by the light source is directed into the housing, reflected by at least one of the plurality of facets, and exits the light reflector out of either the first plane or the second plane. The body of the light reflector may include a free-form surface that is generated as the best fit to the plurality of facets.
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: October 15, 2013
    Inventor: Simon Magarill
  • Patent number: 8556442
    Abstract: A backlight unit and a display apparatus using the same are disclosed. The backlight unit includes a first reflector, a second reflector partially having an inclined surface, a plurality of light sources disposed between the first reflector and the second reflector, and a third reflector disposed between adjacent light sources.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: October 15, 2013
    Assignee: LG Innotek Co., Ltd.
    Inventors: Ji Won Jang, Sung Yong Park, Se Jin Ko, Sung Ho Kim
  • Publication number: 20130258652
    Abstract: A light-guiding element, an illumination module and a laminate lamp apparatus are provided. The light-guiding element comprises an upper reflection member extended along a longitudinal axis direction, and a lower reflection member extended along the longitudinal axis direction thereof and coupled to the upper reflection member. The lower reflection member comprises a first reflective portion with at least a first inclined flat plate, and the upper reflection member comprises a second reflective portion facing towards the first reflective portion. A light placement portion and a light outputting trough are formed between the first reflective portion and the second reflective portion. The light outputting trough is gradually expanded largely according to a direction of being away from the light placement portion.
    Type: Application
    Filed: March 28, 2013
    Publication date: October 3, 2013
    Applicant: Lextar Electronics Corporation
    Inventors: Shang-Jung HSIEH, Chun-Hung LIU, Chi-Cheng CHENG, Sheng-Ping CHEN
  • Patent number: 8545048
    Abstract: An LED illumination structure without a light guide plate (LGP) includes an optical bottom plate, a plurality of LED illumination components arranged at least along one side edge of the optical bottom plate and a plurality of reflecting structures parallel to the LED illumination components formed on the optical bottom plate from two opposite side edges of the optical bottom plate to a center of the optical bottom plate. The reflecting structures are in a shape of tapered embossment and include a first side facing the center of the optical bottom plate and a second side facing the side edges of the optical bottom plate. An optical film is arranged in a raising direction of the reflecting structures of the optical bottom plate. The present invention is applicable to an illumination lamp for generating a uniform light emitting or may further be an illumination structure for projecting a light source of a bare-eyed 3D image.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: October 1, 2013
    Assignee: Southern Taiwan University
    Inventors: Chih-Chieh Kang, Jeng-Feng Lin, Hong-Ze Li, Shih-Fu Tseng
  • Patent number: 8545072
    Abstract: An optic includes an LED light source inside a primary reflector, where the primary reflector includes a parabolic trough whose interior surface has a longitudinally extending parabolic first reflective surface that receives light from the light source and emits a fan-shaped beam of light. The LED light source includes an LED die mounted so as to be at or near a focus of the parabolic trough. A selectively shaped secondary reflector is spaced from the primary reflector and has a second reflective surface that is arranged to intersect and reflect the fan of light. The size and shape of the second reflective surface corresponds to the fan of light where the second reflective surface intersects the fan of light. The second reflective surface displays a band of light that appears disassociated from a particular physical surface so as to float in space.
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: October 1, 2013
    Assignee: OSRAM SYLVANIA Inc.
    Inventors: Lawrence M. Rice, Thomas Tessnow
  • Publication number: 20130250567
    Abstract: A modular troffer-style lighting fixture. The fixture is particularly well-suited for use with solid state light sources, such as LEDs. Embodiments comprise a pan structure designed to house one or more modular light engine units within a central opening. Each light engine unit includes a reflective cup that can house several light sources on an interior mount surface. The cup is positioned proximate to a back reflector such that its open end faces a portion of the back reflector. The back reflector is shaped to define an interior chamber where light can be mixed and redirected. At least one elongated leg extends away from the reflective cup toward an edge of said back reflector. The leg(s) are used to mount the reflective cup relative to the back reflector and may also be used as a heat sink and/or an additional mount surface for light sources.
    Type: Application
    Filed: March 23, 2012
    Publication date: September 26, 2013
    Inventors: Mark D. Edmond, Paul Kenneth Pickard, Larry T. Scearce, JR., James Michael Lay, Praneet Athalye
  • Publication number: 20130250573
    Abstract: A total internal reflective (TIR) optic light bar of a lighting fixture configured to illuminate an object, such as a two-dimensional planar surface, the optic light bar including a body having a first end portion that extends to a second end portion through an elongated intermediate portion, the body including a light input surface extending between the first and second end portions, a total internal reflective (TIR) surface, and at least one light output surface, where the light output surface is formed as a gradual, continuous curve including a plurality of discrete segments that form a curvilinear surface, and where the TIR surface is composed of one or more of the discrete segments which form the curvilinear light output surface.
    Type: Application
    Filed: May 17, 2013
    Publication date: September 26, 2013
    Applicant: SYLVAN R. SHEMITZ DESIGNS INCORPORATED
    Inventors: Nikhil Taskar, Paul Ford, David R. Pfund
  • Patent number: 8534889
    Abstract: A vehicle headlight can include a projector lens, a bulb disposed in a back direction from the projector lens, and having an axis in a right-left direction, a reflector disposed to cover the bulb from behind, a shade disposed between the projector lens and the bulb, a first additional reflection surface disposed in the front direction from the bulb, and reflecting light from the bulb toward a space lying ahead of the bulb end in a bulb-axis direction. A second additional reflection surface can be disposed in the space, and reflect light from the first additional reflection surface toward the projector lens. A top end portion of the shade can be bent in the back direction to form a low-beam cutoff line with back end edge. The first additional reflection surface can be disposed lower than the top end portion and in the front direction from the back end edge.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: September 17, 2013
    Assignee: Stanley Electric Co., Ltd.
    Inventors: Yoshihiro Fujiyama, Hideyasu Shoji, Takashi Akutagawa
  • Patent number: 8534876
    Abstract: An optical sensor assembly is disclosed. The optical sensor assembly includes an illumination system that segments light emitted by a light source into multiple segments. The multiple segments are allowed to travel different optical paths on their way to a common target area and are further allowed to irradiate different portions of the common target area. This enables a low-profile optical sensor assembly to be achieved.
    Type: Grant
    Filed: February 10, 2011
    Date of Patent: September 17, 2013
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: Lye Pin Chu, Sai Mun Lee
  • Patent number: 8534880
    Abstract: A light emitting diode (LED) lighting system and method is inherently configurable into a variety of new and retrofit lamp applications. This reduces fixture costs by incorporating the heat removal method, light guide system, and a chassis into one easy to assemble and install structure. It also allows for configuration of a lighting system for determining overall height, overall inner and outer radii, light directivity, lighting intensity, and thermal performance. In retrofit applications, the lighting system can be configured to minimize installation costs. In a preferred embodiment, a LED lighting system is comprised of sub assemblies of LED circuit strips or arrays conjoined to create a multifaceted structure. Each sub-assembly has LEDs mounted on a circuit substrate with conductors to electrically connect the LEDs. These circuits are thermally interfaced and attached to thermally conductive material selected, treated, or processed to obtain desired light reflecting properties.
    Type: Grant
    Filed: April 12, 2011
    Date of Patent: September 17, 2013
    Assignee: Analog Technologies Corp.
    Inventors: William C. Berg, Gary L. Johnson, Joshua M. J. Muonio
  • Patent number: 8529095
    Abstract: A bulb-shaped LED lamp includes a plurality of high-intensity LED modules 2 where a high-intensity LED is attached on an LED fixing base plate, a heat sink 5 where the high-intensity LED modules 2 are attached on an end face in an axial direction thereof along a circumferential direction, for performing radiation of the high-intensity LED modules 2, a reflector 4 which is provided so as to surround the plurality of high-intensity LED modules 2, for guiding light from the high-intensity LED modules 2 forward, an electronic circuit for driving 6 which drives the high-intensity LED modules 2, a housing 7 which houses the heat sink 5, the electronic circuit for driving 6, and a portion of the reflector 4 therein, and a globe 8 which configures an outer shell together with the housing 7.
    Type: Grant
    Filed: September 19, 2007
    Date of Patent: September 10, 2013
    Assignee: Osram Gesellschaft mit beschrankter Haftung
    Inventor: Daijiro Konaka
  • Patent number: 8529102
    Abstract: A reflector system for a lighting device. The system uses two reflective surfaces to redirect the light before it is emitted. The light source/sources are disposed at the base of a secondary reflector. The first reflective surface is provided by a primary reflector which is arranged proximate to the source/sources. The primary reflector initially redirects, and in some cases diffuses, light from the sources such that the different wavelengths of light are mixed as they are redirected toward the secondary reflector. The secondary reflector functions primarily to shape the light into a desired output beam. The primary and secondary reflectors may be specular or diffuse and may comprise faceted surfaces. The reflector arrangement allows the source to be placed at the base of the secondary reflector where it may be thermally coupled to a housing or another structure to provide an outlet for heat generated by the sources.
    Type: Grant
    Filed: April 6, 2009
    Date of Patent: September 10, 2013
    Assignee: Cree, Inc.
    Inventors: Paul Kenneth Pickard, Ryan Kelley
  • Patent number: 8523419
    Abstract: An edge-lit backlight comprises a front and back reflector forming a hollow light recycling cavity having a cavity depth H and an output region of area Aout, and one or more light sources disposed proximate a periphery of the backlight to emit light into the light recycling cavity. The light sources have an average plan view source separation of SEP collectively having an active emitting area Aemit, wherein a first parameter equals Aemit/Aout and a second parameter equals SEP/H. The first parameter is in a range from 0.0001 to 0.1, and by the second parameter is in a range from 3 to 10. The front reflector has a hemispherical reflectivity for unpolarized visible light of Rfhemi, and the back reflector has a hemispherical reflectivity for unpolarized visible light of Rbhemi, and Rfhemi*Rbhemi is at least 0.70.
    Type: Grant
    Filed: May 19, 2008
    Date of Patent: September 3, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Timothy J. Nevitt, Timothy J. Hebrink, Michael F. Weber, Rolf W. Biernath, David G. Freier, John A. Wheatley, Andrew J. Ouderkirk, Charles D. Hoyle, Kristopher J. Derks
  • Publication number: 20130208485
    Abstract: The present invention relates to a reflector for light emission sources, having a rotational symmetry about an axis, an apex comprising a first opening of size such to accommodate a light source and a second opening, larger in size than the first opening, adapted to let out the direct light emitted by said light source and the light reflected by the internal surface of the reflector, surface which is characterized by a series of segments comprising a plurality of approximately rectangular surface segments in turn comprising a plurality of reliefs, preferably having a substantially hemispherical shape, and characterized by a convexity facing towards the inside of the reflector, said convexity being characterized by a single curvature radius.
    Type: Application
    Filed: February 5, 2013
    Publication date: August 15, 2013
    Applicant: IGUZZIN ILLUMINAZIONE S.p.A.
    Inventor: IGUZZIN ILLUMINAZIONE S.p.A.
  • Publication number: 20130208468
    Abstract: A lighting device is provided. The lighting device includes an optical reflection plate, a light holder, and at least one light source. The optical reflection plate includes a non-reflective region located in the center of the optical reflection plate, and a plurality of reflection regions surrounding the non-reflective region in sequence. The light holder is located on the non-reflective region of the optical reflection plate and includes a circle side-light concave portion. A light-emitting opening of the side-light concave portion faces to the reflection regions. The light source is located in the side-light concave portion of the light holder. When the light source emits light, the light emitted from the light source is reflected by the reflection regions.
    Type: Application
    Filed: July 13, 2012
    Publication date: August 15, 2013
    Applicant: LEXTAR ELECTRONICS CORPORATION
    Inventors: Sheng-Ping Chen, Chi-Cheng Cheng, Chun-Hung Liu, Shang-Jung Hsieh
  • Patent number: 8506116
    Abstract: The present invention provides various embodiments for apparatuses, systems, and methods for lighting devices used in shelving, displays, and the like. Some embodiments provide lighting device comprising elongated extrusions with a first surface and a second surface proximate the first surface. The second surface may be reflective. One or more light emitting devices may be mounted at the first surface of the extrusion. The first surface is angled with respect to the second surface such that at least a portion of the light emitted from the light emitting devices reaches the second surface. If the second surface is reflective, at least a portion of the emitted light will be reflected from the second surface. A protective and possibly light diffusive lens may be provided between the first and second surfaces. In other embodiments, lighting systems may be provided with a plurality of lighting devices as described above.
    Type: Grant
    Filed: November 11, 2009
    Date of Patent: August 13, 2013
    Assignee: The Sloan Company, Inc.
    Inventors: Thomas C. Sloan, Bruce Quaal
  • Patent number: 8506128
    Abstract: A light source device includes: a light source which emits light; a first reflector which surrounds a part of the light source and reflects the light emitted from the light source in the direction of an optical axis; and a second reflector which surrounds at least a part of the light source different from the part surrounded by the first reflector and reflects the light emitted from the light source toward the first reflector, wherein the position of a convergence spot of the light reflected by the second reflector is displaced from the position of an emission spot of the light source at least in the direction of a plane perpendicular to the direction of the optical axis.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: August 13, 2013
    Assignee: Seiko Epson Corporation
    Inventors: Hidefumi Sakata, Susumu Aruga, Takayuki Matsubara, Takeshi Takezawa
  • Publication number: 20130200407
    Abstract: A defocused optic (110, 210) for mixing of light output from a multichip LED (101, 201). The defocused optic (110, 210) includes an outer reflector having a concave inner surface (122, 26, 222, 226) with a varied profile. The outer reflector surrounds an interior reflector (140, 240) having a convex surface (142, 242). The convex surface (142, 242) of the interior reflector (140, 240) is positioned to generally face a multichip LED (101, 201) and may optionally have a varied profile. Appropriate selection of the design parameters of the profiles of the concave inner surface(122, 126, 222, 226), the profile(s) of the convex surface (142, 242), and the rotational angular range over which said profiles are present enables appropriate mixing of the light output from a given multi-chip LED (101, 201).
    Type: Application
    Filed: April 22, 2011
    Publication date: August 8, 2013
    Applicant: KONNKLIJKE PHILIPS ELECTRONICS, N.V.
    Inventor: Eric Roth
  • Patent number: 8500307
    Abstract: A lighting apparatus is presented, having a Lambertian or quasi-Lambertian light source with an emitter side, as well as a reflector structure having an output side and a reflective surface with a concave parabolic contour that reflects light from the emitter side of the light source to provide Lambertian or quasi-Lambertian output light from the output side.
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: August 6, 2013
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Paul S Lebow, Keith A Snail
  • Patent number: 8496362
    Abstract: A light module includes a light emitting diode (LED) array and a double-reflective assembly coupled to the LED array. The double-reflective assembly includes a lower member having a frame. The frame has an opening corresponding to the LED array. The frame and LED array are located in the same plane. The light module further includes a left bottom reflector and a right bottom reflector. The light module further includes an upper member which includes a left top reflector; and a right top reflector, wherein the left top reflector is attached to the left bottom reflector, and right top reflector is attached to the right bottom reflector, each forming an arbitrary left and right double-reflective assembly. A shape geometry and profile of each double-reflective assembly provides a pre-calculated combined non-circular asymmetrical intensity distribution pattern.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: July 30, 2013
    Assignee: Bridgelux Inc.
    Inventors: Alexander Rizkin, Robert Tudhope, Vahid Moshtagh, Hannu Tapani Hukkanen, Tomi Mikael Kuntze
  • Patent number: 8490267
    Abstract: An apparatus, method and system for assembling lighting fixtures where reflective inserts are installed into a reflector frame to create a reflective surface for the fixture. According to one aspect of the method, some type of worker-perceivable indication prompts a worker as to which reflective insert should be installed at which mounting location on the reflector frame. The worker does not have to guess or translate written instructions. The method can be used sequentially to provide such assistance for each of a plurality of reflective inserts for a plurality of mounting locations. The method is particularly helpful if the reflective inserts are not identical for each mounting location. According to one aspect of an apparatus according to the invention, a reflector frame is removably mounted to a machine that holds the reflector frame in an indexed position.
    Type: Grant
    Filed: October 15, 2010
    Date of Patent: July 23, 2013
    Assignee: Musco Corporation
    Inventor: Thomas A. Stone
  • Patent number: 8480266
    Abstract: A vehicle light unit can convert an LED light source to a linear light emitting state and can be incorporated into a vehicle light. The vehicle light unit can include a first to fourth lens part in front of an LED light source. The first to third lens parts can convert the point light source or the LED light source into a linear light emitting portion with improved light utilization efficiency by providing first to fourth total reflection surfaces utilizing internal reflection to the third lens part. The light rays through the linear light emitting portion can be incident on the fourth lens part. The fourth lens part can include a plate-shaped light guiding portion with a plurality of total reflection surfaces on one surface and corresponding lens cut portions on the other opposite surface.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: July 9, 2013
    Assignee: Stanley Electric Co., Ltd.
    Inventor: Takashi Futami
  • Publication number: 20130170228
    Abstract: According to an embodiment of the disclosure, a system for providing thermal management of an obscured laser system is provided that includes a primary mirror, a secondary mirror, and a plurality of energy redirectors. The primary mirror is configured to reflect beam energy for the laser system. The secondary mirror is configured to function as a limiting aperture for the laser system and is aligned on-axis with respect to the primary mirror. The energy redirectors are each configured to redirect energy away from a corresponding obscuration and out of the laser system.
    Type: Application
    Filed: December 28, 2011
    Publication date: July 4, 2013
    Applicant: Raytheon Company
    Inventors: Byron B. Taylor, Eric M. Palmer, David G. Jenkins
  • Patent number: 8475012
    Abstract: A lamp can includes: a first reflective surface which can be provided on a surface of a circular shaped member, a radius of a top of the annular member can be longer than a radius of a bottom of the annular member; a second reflective surface which can be arranged inside of the first reflective surface and can have a conical shape, a vertex of the second reflective surface can be directed to a top side of the first reflective surface; and a plurality of light emitters which can be annularly arranged on the first reflective surface around the second reflective surface at a predetermined interval so as to be projected on the second reflective surface.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: July 2, 2013
    Assignee: Stanley Electric Co., Ltd.
    Inventors: Nao Nakano, Hiroyuki Chikama
  • Publication number: 20130163260
    Abstract: A light collecting device includes at least one light guide plate having a body and at least one light guiding groove. The body has a bottom surface, a light entrance surface, a light exit surface and two opposite lateral surfaces between the bottom surface and the light entrance surface. A first acute angle is formed between the two lateral surfaces. Having a reflective surface and two opposite groove wall surfaces, the light guiding groove is formed and dented inward from the bottom surface. A second acute angle is formed between the two groove wall surfaces. The reflective surface is located at an end, close to the light exit surface, of the light guiding groove. An absolute value of a difference between the first acute angle and the second acute angle is less than or equal to 30 degrees.
    Type: Application
    Filed: December 5, 2012
    Publication date: June 27, 2013
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventor: Industrial Technology Research Institute
  • Patent number: 8469555
    Abstract: An optical system includes an outer reflector and at least one inner reflector, wherein the inner reflector is disposed within the outer reflector. The outer reflector has a proximal end, a distal end, and an interior surface extending from the distal end to the proximal end. The inner reflector has a proximal end, a distal end, and an interior surface and exterior surface extending from the distal end to the proximal end. The proximal end of the outer reflector is positioned adjacent a light source, wherein the light source is surrounded by the outer reflector's proximal end. The light source emits narrow angle beams of light through the inner reflector and emits wide angle beams of light between the outer reflector's inner surface and the inner reflector's external surface. The positioning and dimension of the inner reflector prevents the light source from emitting wide angle beams of light directly to an illuminated surface.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: June 25, 2013
    Assignee: Cooper Technologies Company
    Inventors: Wei Rong, Timothy Wright
  • Patent number: 8465170
    Abstract: A ceiling notification device has a housing; a reflector unit mounted to the housing; a lens positioned over the reflector unit; and a lamp in the center of the reflector unit along the central axis. The reflector unit has a base, a plurality of reflective fins, and a surface portion. The base has a curved surface that is symmetrical about a central axis. The plurality of reflective fins each has a first fin portion extending from the base and a second fin portion extending from the base and the first fin portion, the second fin portion having an inner surface and an outer surface, wherein the inner surface is exposed to the central axis. The surface portion extends from the base and positioned between the first fin portion and an edge of the base and is angled toward an inner surface of the second fin portion.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: June 18, 2013
    Assignee: Copper Technologies Company
    Inventors: Wei Rong, Joseph Keller, Joseph Kosich, Crystal Pierz
  • Patent number: 8454212
    Abstract: An anti-collision light for aircraft comprising two illuminating modules each comprising a number of LEDs disposed along a ring and coplanar to a plane, a first reflector facing the LEDS and a second reflector surrounding the LEDS; the first and the second reflector are so configured as to reflect the light emitted by LEDs toward angles between 0 and 75° above or below said plane. An additional module providing infra-red radiation is may be provided; the additional module comprising number of infra red LEDs disposed along a ring and coplanar to a plane and a reflector facing the infra red LEDs.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: June 4, 2013
    Assignee: Sirio Panel S.p.A.
    Inventors: Francesco Fabbri, Paolo Vanni
  • Publication number: 20130135875
    Abstract: The present invention relates to a light with a reflector defining a reflector axis and on its front side delimits a light outlet opening and on its rear side an illuminant opening. The reflector has reflector segments in the circumferential direction which are connected to one another. A holding plate has a central opening on the end region of the reflector and is positioned such that the holding plate opening and the illuminant opening lie over one another. An illuminant is a Lambert radiator with a circular light outlet surface radiating according to a Lambert characteristic. The Lambert radiator is fixed on the holding plate radiates light from the outside into the reflector through the illuminant opening. The reflector segments pass through the holding plate and the illuminant opening and the light outlet opening of the reflector lie on opposite sides of the holding plate.
    Type: Application
    Filed: November 28, 2012
    Publication date: May 30, 2013
    Applicant: BA*RO GMBH & CO. KG
    Inventor: BA*RO GMBH & CO. KG
  • Patent number: 8439525
    Abstract: The present invention, in some embodiments, provides a luminaire operable to enhance the uniformity of light distributed from the luminaire thereby mitigating diminished illuminance at the periphery of an illuminated area.
    Type: Grant
    Filed: April 16, 2010
    Date of Patent: May 14, 2013
    Assignee: ABL IP Holding LLC
    Inventors: Yaser S. Abdelsamed, Januk Aggarwal, John Bryan Harvey
  • Patent number: 8439530
    Abstract: Described herein is a method and apparatus for simulating solar light to create an ideal testing environment for solar panels and the like. The method and apparatus may also be used to test solar resistance for color fading or resistance to high levels of solar energy. The apparatus generally consists of a plurality of mirrors directed towards a multi-faceted mirror, from which the light beams converge towards a target plane. The light intensity at the target plane is, according to one embodiment, between 100 and 200 suns.
    Type: Grant
    Filed: February 16, 2011
    Date of Patent: May 14, 2013
    Assignee: The Boeing Company
    Inventors: Douglas R. Jungwirth, Emilio Quezada
  • Patent number: 8434907
    Abstract: The lighting apparatus comprises: a first and a second light sources comprising a plurality of a light emitting devices disposed on one side of a substrate respectively; a heat radiating body which radiates heat from the plurality of the light emitting devices, comprises a space for housing the first and the second light source, and comprises an opening allowing light emitted from the plurality of the light emitting devices of the first and the second light sources to be emitted; and, a reflector being disposed on the heat radiating body and comprising a reflective surface for reflecting the light emitted from the light emitting devices of the first and the second light sources to the opening of the heat radiating body, and wherein the reflective surface of the reflector comprises two surfaces, and wherein the ends of the two surfaces are in contact with each other at a predetermined angle.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: May 7, 2013
    Assignee: LG Innotek Co., Ltd.
    Inventors: Kyung-il Kong, Seok Jin Kang, Ji Yeon Hyun, Eunhwa Kim
  • Publication number: 20130107527
    Abstract: A luminaire is disclosed comprising one or more side members having one or more light modules associated therewith and defining a recess. The light module having one or more light sources, one or more light directing members, and a lens enclosing the light sources and directing members in the module. The light directing members can comprise reflector modules of different configurations to provide different light distributions from the associated one or more light sources. The light modules can be configured to cast different light distributions to combine to form the desired light distribution. The light modules can be designed or exchanged to create any desired light distribution from the same side members. The light module can comprise a tray such that the lens is sealed to the tray keeping moisture from entering the module.
    Type: Application
    Filed: September 17, 2012
    Publication date: May 2, 2013
    Applicant: LSI INDUSTRIES, INC.
    Inventor: LSI Industries, Inc.
  • Patent number: 8419227
    Abstract: To provide an illumination device in which a point light source and a reflective member based on a light weight, cheap resin material is used, the illumination device has high precision and is strong to environmental variations when in a state assembled as a unit and is easily moldable as a part, a plurality of point light sources (111) is arrayed, a first reflective member (112b, 112c, 112d) is disposed along an outgoing direction of light of the point light sources, a second reflective member (112e) is disposed in a surface opposed to a light emitting surface of the point light source in an orthogonal direction, the point light sources are moved integrally with a part or a whole of the first and the second reflective member, the illumination device irradiates an irradiation surface by light from the point light sources, rib shaped bodies (112a) are disposed in a light passageway side of the first reflective member, the rib shaped bodies includes a reflective surface and is situated at a position of an appro
    Type: Grant
    Filed: June 10, 2009
    Date of Patent: April 16, 2013
    Assignee: Ricoh Company, Ltd.
    Inventor: Takahiro Nakayama
  • Patent number: 8419218
    Abstract: A light assembly having an axis of symmetry that includes an enclosure comprising at least a base and a cover coupled to the base. The light assembly also includes a plurality of light sources disposed on a circuit board within the enclosure in a first ring having a center point aligned with the axis of symmetry. The light assembly also includes a reflector that has a first focal point within the cover and a plurality of second focal points disposed in a second ring coincident with the first ring.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: April 16, 2013
    Assignee: eLumigen LLC
    Inventors: Mahendra Dassanayake, Srini De Mel, Jagath Samarabandu