Curved Main Surface Patents (Class 362/334)
  • Patent number: 10488006
    Abstract: A vehicular lighting assembly (and methods of making the same) that includes a parabolic reflector; a translucent lens element; and a light source configured to emanate light that strikes an interior surface of the reflector and exits the assembly through the element. Further, an interior surface of the lens element comprises one or more fluted regions that are substantially invisible and configured to refract light from the source away from oncoming vehicles. In addition, the fluted region can be within, on, or integral with, the interior and/or exterior surfaces of the lens element in certain configurations.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: November 26, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Stuart C. Salter, Aaron Bradley Johnson, Paul Kenneth Dellock, Stephen Kenneth Helwig
  • Patent number: 9915404
    Abstract: An optical element includes a light entrance surface, a light exit surface, and a reflective surface. The light entrance surface has a first entrance sub-surface, a second entrance sub-surface, and a third entrance sub-surface which form a cavity for containing a light source. The light exit surface is opposite to the light entrance surface and has a first exit sub-surface, a second exit sub-surface, and a third exit sub-surface. The reflective surface connects the light entrance surface with the light exit surface. The reflective surface has a first reflective sub-surface connecting the first entrance sub-surface with the first exit sub-surface and a second reflective sub-surface connecting the third entrance sub-surface with the third exit sub-surface. The first reflective sub-surface has a step laterally extending from a side adjacent to the light entrance surface to another side adjacent to the light exit surface.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: March 13, 2018
    Assignee: BROALUX International Limited
    Inventors: Jui-Hung Sun, Chun-Te Wu
  • Patent number: 9784429
    Abstract: The invention provides a method and a device for greatly increasing an irradiation range of a lamp.
    Type: Grant
    Filed: November 27, 2014
    Date of Patent: October 10, 2017
    Assignee: HONGLI LIGHTING GROUP CO., LTD.
    Inventors: Guofeng Lv, Wenqing Lv
  • Patent number: 9719656
    Abstract: An aspheric lens is rotating symmetrically with a central optical axis, the aspheric lens includes a first optical surface and a second optical surface opposite to the first optical surface, the second optical surface includes a first portion, the first portion is formed in a rotation symmetrical formed with the central optical axis and is flat.
    Type: Grant
    Filed: February 2, 2016
    Date of Patent: August 1, 2017
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: Po-Yu Lin
  • Patent number: 9714751
    Abstract: An illumination lens includes a light incident surface that defines a cavity and has a flat top and lateral flanks, the light incident surface configured to receive light from an underlying light emitting element. The illumination lens also includes a light exiting surface having a central indentation and a surrounding toroid. The flat top has an angular range of 0 to 25° with respect to a vertical optical axis and faces the central indentation.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: July 25, 2017
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: David G Pelka, William A Parkyn
  • Patent number: 9689553
    Abstract: The disclosure relates to a lens, the lens includes a bottom surface and a light emergent surface relative to the bottom surface, the bottom surface defines a recess configured to receive a light source. The lens further includes a light incident surface opposite to the recess, the light incident surface faces away from the light emergent surface. The light incident surface is formed by a number of ring-shaped curved surfaces connected to each other one by one. The disclosure also relates to a light emitting device using the same.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: June 27, 2017
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: Po-Chin Chiu
  • Patent number: 9677738
    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: Grant
    Filed: March 14, 2014
    Date of Patent: June 13, 2017
    Assignee: 1947796 Ontario Inc.
    Inventors: Jie Sun, Christopher Hart, Stephen Naor
  • Patent number: 9664356
    Abstract: An illumination lens includes a light incident surface that defines a cavity and has a flat top surface and lateral flanks, the light incident surface configured to receive light from an underlying light emitting element, a light exiting surface having a central indentation and surrounding toroid, and a bottom surface connecting the light incident surface and the light exiting surface. The lateral flank includes a first region extending from the top surface and a second region extended from the first region, the second region is a curved surface, of which the center of the curvature thereof lies on the illumination lens, an intersection of the second region and a horizontal optical axis forms a first point, and the first point is disposed lower than a second point where the bottom surface and the light exiting surface intersect.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: May 30, 2017
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: David G Pelka, William A Parkyn
  • Patent number: 9589077
    Abstract: A method for designing a lens of a lighting device having a first spherical surface refracting light generated from an LED device that is a light source and a second spherical surface refracting the light passing through the first spherical surface includes determining an irradiation surface that is an area onto which light passing through the second spherical surface is irradiated, forming a reference circle disposed within the irradiation surface; designing a free curved surface of the first spherical surface by using light emitted from the LED device as an input direction vector and a coordinate within the reference circle as an output direction vector to calculate normal vectors, and designing a free curved surface of the second spherical surface by using light refracted by the first spherical surface as an input direction vector and a coordinate within the irradiation surface as an output direction vector to calculate normal vectors.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: March 7, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Sunjung Park, Chunji Hong, Junwon Lee
  • Patent number: 9435507
    Abstract: An optical element has a light receiving surface covering a light source arranged on a plane and an exit surface covering the light receiving surface. When an axis passing through the center of the light source and is perpendicular to the plane is designated as an optical axis and the point of intersection of the optical axis and the light receiving surface is designated as O1, the light receiving surface is concaved around the optical axis with respect to the periphery. When an angle which a normal to the light receiving surface on a point P thereon forms with the optical axis is designated as ?h and distance in the optical axis direction from O1 to P is designated as z, ?h has at least one local maximum value and at least one local minimum value with respect to z while P is moved along the light receiving surface.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: September 6, 2016
    Assignee: NALUX CO., LTD.
    Inventors: Katsumoto Ikeda, Daisuke Seki, Kouei Hatade
  • Patent number: 9310594
    Abstract: A light source module includes a light source and an optical lens facing the light source. The optical lens includes a light incident face facing the light source, a light emitting face opposite to the light incident face, and a connecting face connecting the light incident face and the light emitting face. The connecting face is planar. The light emitting face includes a lateral face extending upwardly from an outer periphery of the connecting face and a top face located above the light incident face. The top face of the light emitting face comprises a center curved facet and a periphery curved facet surrounding and extending outwardly from the center curved facet. The light incident face is a discontinuous face and includes a plurality of curved facets.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: April 12, 2016
    Assignee: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Feng-Yuen Dai, Chau-Jin Hu, Li-Ying Wang He
  • Publication number: 20150117016
    Abstract: A lens including an upper surface having a curved portion having a changing curvature in a direction extending away from a central axis of the lens, and a lower surface having a concave portion disposed on the central axis of the lens. The concave portion of the lower surface includes an entrance disposed on a lower region of the concave portion and configured to receive light emitted from a light-emitting diode chip, and an upper end surface disposed on an upper region of the concave portion. The concave portion includes a width that narrows in a direction extending away from the entrance. The upper end surface is nonplanar.
    Type: Application
    Filed: December 30, 2014
    Publication date: April 30, 2015
    Inventors: Eun Ju KIM, Bang Hyun Kim, Young Eun Yang
  • 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: 8992052
    Abstract: An optical element for a lamp or lighting apparatus having at least one light emitting diode (LED) as a light source is provided. The optical element is positioned proximate to the LED and receives light rays therefrom. In turn, the optical element distributes the substantially unidirectional light output from the LED into an omnidirectional output with a controlled variance in light intensity at different directions about the LED. A diffuser can also be used around the optical element and LED to provide further distribution of the light rays by e.g., light scattering.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: March 31, 2015
    Assignee: GE Lighting Solutions, LLC
    Inventors: Dengke Cai, Jeyachandrabose Chinniah, Glenn Howard Kuenzler
  • Patent number: 8946743
    Abstract: Disclosed is a light emitting apparatus. The light emitting apparatus includes a package body; first and second electrodes; a light emitting device electrically connected to the first and second electrodes and including a first conductive semiconductor layer, a second conductive semiconductor layer, and an active layer between the first and second conductive semiconductor layers; and a lens supported on the package body and at least a part of the lens including a reflective structure. The package body includes a first cavity, one ends of the first and second electrodes are exposed in the first cavity and other ends of the first and second electrodes are exposed at lateral sides of the package body, and a second cavity is formed at a predetermined portion of the first electrode exposed in the first cavity.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: February 3, 2015
    Assignee: LG Innotek Co., Ltd.
    Inventor: Bong Kul Min
  • Patent number: 8905593
    Abstract: A luminous flux control member that controls travelling direction of light emitted from a light source includes an incident area, an emission area, and a plurality of projecting sections. The plurality of projecting sections are constituted by an inner area, an intermediate area, and a peripheral area defined in the radial direction, and a first specific projecting section disposed in the inner area is configured such that a planar section that is used to measure the height of the first specific projecting section and is perpendicular to the optical axis is connected to an inner peripheral end and an outer peripheral end of a base end portion of the first specific projecting section. The projecting sections other than the first specific projecting section, in principle, come into contact internally or externally with another projecting section other than the first specific projecting section.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: December 9, 2014
    Assignee: Enplas Corporation
    Inventor: Tomohiro Saito
  • 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: 8777458
    Abstract: Disclosed is a light emitting device to reduce the number of components and elements of a light emitting device and a lighting device having the light emitting device, and simplify and miniaturize the structures of these devices. With this light flux controlling member (4), a total reflecting surface (12) functions like a reflecting member, light from a light emitting element (LED, for example) (3) that is incident from an input surface (13) and that arrives at the total reflecting surface (12) is total-reflected by the total reflecting surface (12) toward the output surface (11) side (including a first output surface (11a) and second output surface (11b)), and the illuminating light from the second output surface (11b) is superimposed upon the illuminating light from the first output surface (11a), so that the light from the light emitting element (LED, for example) (3) is used efficiently and illuminates the illumination target surface (6) over a wide range.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: July 15, 2014
    Assignee: Enplas Corporation
    Inventors: Akinobu Seki, Kyouhei Yamada, Noriyuki Kawahara, Hiroshi Takatori
  • Patent number: 8678628
    Abstract: A vehicle light using a projection lens of a novel appearance can provide a feeling of solidness as compared to a simple spherical shape. The vehicle light can include a projection lens having an optical axis and a plurality of separate lens portions divided in a radial pattern with respect to the optical axis of the projection lens. The separate lens portions can have respective light exiting surfaces of different curvatures, and respective light incident surfaces, the shapes of which are determined such that the separate lens portions have the same thickness and the same focal point.
    Type: Grant
    Filed: January 24, 2012
    Date of Patent: March 25, 2014
    Assignee: Stanley Electric Co., Ltd.
    Inventor: Takashi Futami
  • Patent number: 8669571
    Abstract: A light distribution controller of a light-emitting device includes a first optical member formed of ZnO disposed over an LED interposing a transparent adhesive, and a second optical member which covers the first optical member. The first optical member includes a first concave portion having an opening in a regular hexagon shape whose area gradually increases. In the first concave portion, inner wall surfaces having inclined surfaces, each of whose bases is formed by one side of the hexagon of the opening shape, are formed. Outside of the first optical member, outer wall surfaces each having a trapezoidal shape are formed. The second optical member includes a second concave portion arranged so that light at an annular peak in the light distribution characteristic of the light traveled through the first optical member is totally reflected.
    Type: Grant
    Filed: July 4, 2011
    Date of Patent: March 11, 2014
    Assignee: Panasonic Corporation
    Inventors: Akihiko Murai, Masahiro Kume, Akiko Nakamura, Tooru Aoyagi, Kiyoshi Fujihara
  • Publication number: 20140055992
    Abstract: An illumination apparatus includes an optical element. The optical element includes a light incident curved surface and a light outgoing curved surface. The center of curvature of the light incident curved surface is positioned on the center of the light emitting surface of a light source, and the center of the curvature of the light outgoing curved surface is positioned beneath the center of curvature of the light incident curved surface and deviates from the light source. The radius of curvature R1 of the light outgoing curved surface is greater than the radius of curvature R2 of the light incident curved surface.
    Type: Application
    Filed: December 20, 2012
    Publication date: February 27, 2014
    Applicant: LEXTAR ELECTRONICS CORPORATION
    Inventor: Han-Chung Hsu
  • Publication number: 20140029266
    Abstract: A bulb for a semiconductor luminous device is provided. The bulb is three-dimensionally extended and includes at least one optically effective surface structure. A semiconductor luminous device may include at least one semiconductor light source and an optically transmissive bulb for transmitting light emitted by the at least one semiconductor light source, the bulb being three-dimensionally extended and comprising at least one optically effective surface structure, wherein the bulb encloses at least one semiconductor light source.
    Type: Application
    Filed: March 13, 2012
    Publication date: January 30, 2014
    Applicant: OSRAM GMBH
    Inventor: Johannes Hoechtl
  • Patent number: 8602621
    Abstract: The present invention relates to an optical element including a light guide, into which light from one or more light-emitting diodes in a light unit arranged at one end of the light guide is injected, and a reflector arranged at the other end of the light guide capable of reflecting light incident on the reflector. The light guide further includes a prismatic surface comprising a plurality of prisms, each prism being arranged at an angle to an axial direction of the light guide, for guiding the light emitted from the light unit towards the output end of the light guide. The present invention also relates to a light source including an optical element according to the present invention, the light source being arranged for retrofitting into a luminaire employing an incandescent light source.
    Type: Grant
    Filed: January 5, 2010
    Date of Patent: December 10, 2013
    Assignee: Koninklijke Philips N.V.
    Inventors: Yun Li, Ye Liu
  • Patent number: 8596829
    Abstract: A light flux controlling member has a flange projecting outward of a radial direction of a light controlling emission surface and leg parts arranged within a range of area width L in a back surface and on the reference optical axis side of the boundary between the flange and the light controlling emission surface, and L is given by L=t×tan(???), where: t is the thickness of the flange or the height from the back surface to the outermost rim part; ? is an angle of incidence of a light parallel to the reference optical axis and incident on the light controlling emission surface in the outermost rim part; and ? is an angle of emission, from the light controlling emission surface, of a refraction light generated when the light parallel to the reference optical axis is incident on the light controlling emission surface from the outermost rim part.
    Type: Grant
    Filed: August 23, 2010
    Date of Patent: December 3, 2013
    Assignee: Enplas Corporation
    Inventor: Masao Yamaguchi
  • Patent number: 8582053
    Abstract: A light exit surface of an illuminating lens has a first light exit surface and a second light exit surface. The first light exit surface is recessed toward a point on the optical axis, and the second light exit surface extends outwardly from the periphery of the first light exit surface. The first light exit surface has a transmissive region and a total reflection region. When the position of a light source on the optical axis is defined as a starting point, the transmissive region transmits light that has been emitted from the starting point at a relatively small angle with respect to the optical axis, and the total reflection region totally reflects light that has been emitted from the starting point at a relatively large angle with respect to the optical axis.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: November 12, 2013
    Assignee: Panasonic Corporation
    Inventors: Tomoko Iiyama, Syunsuke Kimura, Daizaburo Matsuki
  • Patent number: 8576351
    Abstract: An illuminating lens includes a main body and a ring portion. The main body has a light exit surface, and the light exit surface has a first light exit surface recessed toward a point on the optical axis and a second light exit surface extending outwardly from the periphery of the first light exit surface. The first light exit surface has a transmissive region in the center thereof, and a total reflection region on the peripheral side thereof. The ring portion has a back surface configured to guide the light that has been emitted from a light source, totally reflected repeatedly at the light exit surface, and then entered the ring portion to an end surface by total reflection.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: November 5, 2013
    Assignee: Panasonic Corporation
    Inventors: Syunsuke Kimura, Daizaburo Matsuki, Tomoko Iiyama
  • Patent number: 8558967
    Abstract: A light exit surface of an illuminating lens has a first light exit surface and a second light exit surface. The first light exit surface is recessed toward a point on the optical axis, and the second light exit surface extends outwardly from the periphery of the first light exit surface. The first light exit surface has a transmissive region and a total reflection region. When the position of a light source on the optical axis is defined as a starting point, the transmissive region transmits light that has been emitted from the starting point at a relatively small angle with respect to the optical axis, and the total reflection region totally reflects light that has been emitted from the starting point at a relatively large angle with respect to the optical axis. A reflective layer is formed on a bottom surface that surrounds a light entrance surface and faces oppositely to the light exit surface.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: October 15, 2013
    Assignee: Panasonic Corporation
    Inventors: Tomoko Iiyama, Syunsuke Kimura, Daizaburo Matsuki
  • Patent number: 8523404
    Abstract: An illumination device, comprising a basic body (1) having a cutout (5), a reflector (51), which is formed at least by parts of the cutout (5), and at least one optoelectronic semiconductor component (20) arranged in the cutout (5), wherein the semiconductor component (20) has an optical element (3) designed for directing at least part of the electromagnetic radiation emitted by the semiconductor component (20) during operation onto the reflector (51), wherein a radiation exit area (61) of the illumination device is at least twice as large as the sum of the radiation exit areas (44) of the semiconductor components.
    Type: Grant
    Filed: November 27, 2009
    Date of Patent: September 3, 2013
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Ales Markytan, Christoph Neureuther, Steffen Block
  • Patent number: 8500310
    Abstract: Disclosed herein is an indication plate including: a plate member including a light-transmitting material; and an indication part provided at a surface on one side with respect to the thickness direction of the plate member, wherein the indication part includes a light-shielding part including a light-shielding material and covering the surface on one side, and a convex portion including the light-transmitting material, the convex portion projecting from the surface on one side and being exposed from the light-shielding part; the convex portion has a circumferential surface projecting from the light-shielding part, and an end face connecting tip portions of the circumferential surface to each other, and a metallic foil having a light-transmitting property is attached to the end face.
    Type: Grant
    Filed: March 17, 2009
    Date of Patent: August 6, 2013
    Assignee: Sony Corporation
    Inventor: Takeshi Sakamoto
  • Patent number: 8403549
    Abstract: An edge-type backlight module and a direct-type backlight module with a optical device are provided. The optical device comprises an array layer and a second refractive layer. The array layer has a first refractive index (n1) and contains pluralities of lenticular lens disposed on a base surface side by side. The lenticular lens contains a curving structure with a peak, a trough, a curvature radius (R), a width (P) and an altitude (H) between the peak and the trough. The trough is disposed on the base1 surface. The array layer has a first critical angle (?1c) relative to the normal of the base surface and satisfies ? 1 ? c = sin - 1 ? ( 1 n 1 ) and H = R 1 + K ? [ 1 - 1 - ( 1 + K ) ? ( P 2 ? R ) 2 ] . The conical constant (K) of the lenticular lens ranges from ?2.1 to ?1.5.
    Type: Grant
    Filed: November 11, 2010
    Date of Patent: March 26, 2013
    Assignee: Entire Technology Co., Ltd.
    Inventors: Hao Xiang Lin, Yan Zuo Chen, Wen Feng Cheng, Jui Hsiang Chang
  • Patent number: 8303141
    Abstract: A total internal reflection (TIR) lens has an integrated lamp cover adapted to a lamp of a desired form factor (e.g., PAR-38). The size and shape of the TIR lens can be adapted to optimize the light output of the lamp with little regard to the desired form factor. The integrated lamp cover can extend the front surface of the TIR lens in a direction transverse from the optical axis.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: November 6, 2012
    Assignee: LedEngin, Inc.
    Inventor: Wu Jiang
  • Patent number: 8231249
    Abstract: A lighting system is provided that includes: an optical device including a cylindrical lens made up of a liquid lens, an emission unit including an axis line in the Z-axis direction, and a reflecting mirror configured to reflect light emitted from the emission unit. The cross-sectional shape of a light reflecting portion when cutting away the reflecting mirror at a virtual plane perpendicular to the Z axis is a part of a parabola. The axis line of the emission unit is positioned between the vertex-of the parabola and a focal point. Thus, there is provided a lighting system in which an optical device, which is made up of a liquid lens employing an electrowetting phenomenon, having an arrangement and configuration whereby high optical power can be obtained.
    Type: Grant
    Filed: September 4, 2008
    Date of Patent: July 31, 2012
    Assignee: Sony Corporation
    Inventors: Miki Tsuboi, Yuichi Takai, Mariko Obinata
  • Patent number: 8197104
    Abstract: A secondary optical lamp guard includes an upper half portion, two clamp portions and a lower half portion, and the upper half portion has a plurality of optical refractive angles formed on an internal side of the upper half portion for improving the effect of the optical refractive angles, and the upper half portion and the lower half portion are processed by a plasma treatment to produce nanoscale holes for facilitating the dissipation of heat generated by a light source.
    Type: Grant
    Filed: June 10, 2010
    Date of Patent: June 12, 2012
    Assignee: UP Key Light & Energy Technology Co., Ltd.
    Inventor: Jacky Chang
  • Patent number: 8172433
    Abstract: An optoelectronic component has optically active region, with the optically active region comprising at least one semiconductor chip which is provided for generating electromagnetic radiation, and comprising a beam-forming element through which at least a portion of the electromagnetic radiation which is emitted from the semiconductor chip in operation passes and which has an optical axis, and with the optically active region having quadrant symmetry with respect to a coordinate system which is perpendicular to the optical axis. An illumination device has an optoelectronic component such as this.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: May 8, 2012
    Assignee: Osram Opto Semiconductors GmbH
    Inventor: Julius Muschaweck
  • Patent number: 8104930
    Abstract: An LED module includes an LED and a lens covering the LED. The LED has an optical axis. The lens has an incident face for incidence of light of the LED into the lens and an opposite emitting face for refracting the light of the LED out of the lens. The emitting face has two elongated, ellipsoid lateral surfaces and a middle surface located between and connecting with the two ellipsoid lateral surfaces. The incident face has a sidewall and a ceiling connecting to a top of the sidewall. The middle surface of the emitting face and the ceiling of the incident face are corresponding to each other and inclined laterally relative to the optical axis of the LED.
    Type: Grant
    Filed: January 18, 2010
    Date of Patent: January 31, 2012
    Assignees: Fu Zhun Precision Industry (Shen Zhen) Co., Ltd., Foxconn Technology Co., Ltd.
    Inventors: Hai-Wei Zhang, Chin-Chung Chen, Jia-Chuan Lv
  • Patent number: 8023068
    Abstract: An optical sheet, a backlight unit including the optical sheet, and a liquid crystal display including the backlight unit are provided. The optical sheet includes a base film including a first surface and a second surface opposite the first surface and a plurality of projections on the base film. A first thickness between the first surface and the second surface is different from a second thickness between the first surface and the second surface.
    Type: Grant
    Filed: January 23, 2009
    Date of Patent: September 20, 2011
    Assignee: LG Electronics Inc.
    Inventors: Hanbitt Joo, Kabjin Hwang
  • Patent number: 7922368
    Abstract: A liquid crystal display device may include a backlight unit for providing light for the display. A backlight unit may include light modules. The light modules include colored LEDs surrounded by a first lens for refracting the light from the LEDs. A second lens surrounds the first lens for further refraction of the light to improve brightness and the uniformity of the light.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: April 12, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Jae Bum Kim, Jae Kyung Kang, Sung Keun Lee, Jae Jin Kim, Hyung Dong Kim, Sang Dae Lee
  • Patent number: 7918583
    Abstract: Lighting devices are provided for efficiently distributing light over an area to provided uniform illumination over a wide angle or other tailored illumination patterns. Each light device has at least one light source, at least one collimator for partially collimating light from the light source, and at least one diffuser for diffusing light from the collimator. The diffuser provides diffused light over an area from the diffuser having an intensity that is angularly dependent in accordance with the angular distribution intensity of light outputted from the collimator, so as to provide a predetermined illumination pattern from the device. The light sources and collimators may be provided in one or two-dimensional arrays, and a single diffuser may be formed on each collimator or the diffuser may be along a plate spaced from the collimators.
    Type: Grant
    Filed: August 16, 2006
    Date of Patent: April 5, 2011
    Assignee: RPC Photonics, Inc.
    Inventors: Stephen H. Chakmakjian, Donald J. Schertler, Tasso Sales, G. Michael Morris
  • Patent number: 7901108
    Abstract: An LED light source device using light from luminescent elements at a high level of uniformity and efficiency, and to conduct irradiation with a high level of design freedom an LED light source device is equipped with luminescent elements and a translucent light-guiding member. The translucent light-guiding member has a central convex lens with a first cylindrical light-guiding part formed on the outer periphery of the central convex lens and a second cylindrical light-guiding part formed on the outer periphery of the first cylindrical light-guiding part, such that an air layer is formed between the outer peripheral surface of the first cylindrical light-guiding part and the inner peripheral surface of the second cylindrical light-guiding part, the outer peripheral surface of the first cylindrical light-guiding part and the outer peripheral surface of the second cylindrical light-guiding part being rotated quadratic surfaces with the same focal point.
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: March 8, 2011
    Assignee: Ushiodenki Kabushiki Kaisha
    Inventors: Kiyoyuki Kabuki, Hiroshige Hata
  • Patent number: 7866855
    Abstract: A reflector (14) for a luminaire comprises a generally parabolic wall (28) having series of main right-angled prisms (16) and an interleaved series of transition prisms (18). The main and transition prisms have essentially the same shapes and follow the same overall curvature to control the illumination. The transition prisms transition into the main prisms by merging a peak of a transition prism into the valley between adjacent main prisms in a short transition zone (20). Thus, the transition zone has only a small effect on the overall lighting pattern.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: January 11, 2011
    Assignee: ABL IP Holding LLC.
    Inventor: Yaser S. Abdelsamed
  • Patent number: 7841750
    Abstract: A light-directing lensing member for off-axial preferential-side distribution of light from a light emitter having an emitter axis, including a base end with a perimeter-loop line defining a main plane transverse the emitter axis, and an outer surface configured for refracting light from the emitter in a predominantly off-axis direction toward the preferential side. The outer surface includes a major lens-portion and an axially-located minor lens-portion. The major lens portion outer surface has a front region centered on the front side, a back region centered on the back side, and a middle region around the emitter axis and contiguous with the front and back regions. The minor lens-portion has a surrounding-loop surface extending from the middle region transverse the main plane and terminating at an end surface configured to direct substantially axially-parallel light from the emitter in off-axis direction toward the preferential side.
    Type: Grant
    Filed: August 1, 2008
    Date of Patent: November 30, 2010
    Assignee: Ruud Lighting, Inc.
    Inventors: Kurt S. Wilcox, Chris Strom
  • Patent number: 7819550
    Abstract: An array of LEDs (30) is provided having a lens array (34) for collecting divergent light from each LED (30). Each lens (34) in the array is associated with a respective LED (30) and has a compound shape including a curved surface (40) that may be spherical or may have an offset aspherical shape. The curved surfaces (40) are centered about each side of its associated LED (30). The lens (34) may alternatively include faceted surfaces (46) that approximate the curved lens surface.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: October 26, 2010
    Assignee: Phoseon Technology, Inc.
    Inventors: Duwayne R. Anderson, Roland Jasmin
  • Patent number: 7819560
    Abstract: Provided are an illumination device and a lens employed in the device for controlling light travelling direction, the device being capable of illuminating brightly and uniformly a certain limited region (region-to-be-illuminated) corresponding to an object such as subject for photography. The illumination device emits light H coming from a light emitting element (point-like light source) employing a LED as a light emitting source via the lens. A light control emission face of the lens emits light (rays), which is included in light H introduced into the lens through an incidence face thereof and travelling within the lens to the light control emission face without undergoing inner-reflection at any surface of the light control emission face, as illumination light.
    Type: Grant
    Filed: April 24, 2007
    Date of Patent: October 26, 2010
    Assignee: Enplas Corporation
    Inventor: Shingo Ohkawa
  • Patent number: 7798679
    Abstract: A light-emitting device (10) is arranged such that (x) R1 monotonically decreasing as ?1 increases, at least in a range of ?1<?/3, where an intersection of a light axis Z and an emission surface of a light-emitting element (1) is a reference point; ?1 is an angle between the light axis Z and a straight line that passes through the reference point and an arbitrary point on a light-incoming surface (2a), and R1 is a distance between the reference point and the arbitrary point on the light-incoming surface (2a); (y) R2 monotonically increasing as ?2 increases, at least in a range of ?2<?/3, where ?2 is an angle between the light axis Z and a straight line that passes through the reference point and an arbitrary point on a light-outgoing surface (2b), and R2 is a distance between the reference point and the arbitrary point on the light-outgoing surface (2b); and (z) A2 scatters light without generating uneven brightness on a liquid crystal display panel and has higher scattering ability that is obtained by
    Type: Grant
    Filed: August 8, 2008
    Date of Patent: September 21, 2010
    Assignees: Sharp Kabushiki Kaisha, Enplas Corporation
    Inventors: Fumio Kokubo, Masao Yamaguchi
  • LED
    Patent number: 7789537
    Abstract: An LED (10) includes a chip with a light-emitting surface (140) and an encapsulation on the chip. The encapsulation has a light output surface (110) facing the light-emitting surface of the chip and has a convex surface (112) surrounding a concave surface (114). A portion of light (30) emitted by the light-emitting surface is refracted divergently via the concave surface to a predetermined area above and around the concave surface, and another portion of light (40) emitted by the light-emitting surface is refracted convergently via the convex surface to the predetermined area.
    Type: Grant
    Filed: October 8, 2008
    Date of Patent: September 7, 2010
    Assignees: Fu Zhun Precision Industry (Shen Zhen) Co., Ltd., Foxconn Technology Co., Ltd.
    Inventors: Fang-Xiang Yu, Shun-Yuan Jan
  • Patent number: 7744246
    Abstract: A portable luminaire includes an optical module, a power source and a housing. The optical module has at least one light emitting diode (LED) that emits light with a wide divergence, a non-imaging optical element and a transparent window. The non-imaging optical element (NIO) has a refractive member located around a LED optical axis and a total internal reflection member located around the refractive member. The refractive member and the total internal reflection member are integrated in a single transparent element having a mutual focal point. The NIO element collects a significant amount of light emitted by the LED with wide divergence located at the focal point to compress the collected light with high efficiency into a required pattern with a generally different angular distribution in a horizontal plane and a vertical plane, and to direct the compressed light outside of the luminaire.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: June 29, 2010
    Assignee: Farlight, LLC
    Inventors: Alexander Rizkin, Robert H. Tudhope
  • Patent number: 7731401
    Abstract: An exterior automotive lamp may be formed with LED light sources by efficiently using the available light. The LEDs are arranged in an array to illuminate a central lens to produce the horizontal spread from the central portion of the LED beam. Meanwhile a reflector gathers the more disperse side-emitted portion of the LED beam and directs that light as an outer sheath to form a supplementary portion of the beam. The lamp efficiently provides a beam that may be adapted for highbeam, lowbeam, fog, or signal purposes.
    Type: Grant
    Filed: April 11, 2007
    Date of Patent: June 8, 2010
    Assignee: Valeo Sylvania LLC.
    Inventors: Robert Lee King, Dennis Wilkerson, Dennis Black
  • Patent number: 7726849
    Abstract: A luminaire adapted to being mounted at the top of a post having a design reducing maintenance costs. The luminaire has a capital with a globe mounted thereon forming an optical chamber, the capital has a front access area with a front access door hingedly attached thereto and optionally has a tool-less latch capable of holding the front access door over the front access area. The capital has an opening in a top portion thereof into the optical chamber, optionally, a relamping module extends from the inside of the capital, through the opening and up into a central portion of the optical chamber and has a lamp socket thereon. The relamping module may be removed without manipulation of the globe or globe roof. The luminaire may also have electrical gear within the capital attached to a tray wherein the tray is removably attached to an internal portion of the capital. The globe and globe roof may remain stationary during typical maintenance processes such as relamping or maintenance of electrical gear.
    Type: Grant
    Filed: March 3, 2009
    Date of Patent: June 1, 2010
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Eric Haddad, Jason Metzler
  • Patent number: 7717589
    Abstract: A light emitting device comprises: an LED chip mounted in a recess formed in a mounting substrate; a wavelength converting member that is disposed so as to cover the recess and the edge area around the recess and that is excited by light emitted from the LED chip to emit light of a wavelength different from an excitation wavelength; and an emission control member disposed at a light output side of the wavelength converting member so as to allow emission of light coming from an area of the wavelength converting member that corresponds to the recess and to prevent emission of light coming from an area of the wavelength converting member that corresponds to the edge area around the recess. This can prevent variations in color between light emitted from the central part of the wavelength converting member and light emitted from the part of the wavelength converting member that is located on the edge area around the recess of the mounting substrate, thereby reducing unevenness of color on the irradiation surface.
    Type: Grant
    Filed: November 25, 2004
    Date of Patent: May 18, 2010
    Assignee: Panasonic Electric Works Co., Ltd.
    Inventors: Kouji Nishioka, Masaru Sugimoto, Hideyoshi Kimura, Ryoji Yokotani, Yutaka Iwahori, Takuma Hashmoto, Shinya Ishizaki, Satoshi Mori, Hiroyuki Sekii, Eiji Shiohama
  • Patent number: 7712930
    Abstract: An optical module for projecting a light beam comprises a solid body of transparent material into which a light source is sunk and which is delimited by an annular surface and by a central surface, and a substantially annular reflecting surface arranged around the solid body. The central and annular surfaces are suitable for receiving respective distinct portions of the luminous flux produced by the source. The reflecting surface may have a reflecting coating or may form part of a transparent body, in which case it works by total internal reflection. The reflecting surface reflects a portion of luminous flux refracted by the annular surface and shapes the flux into a predetermined distribution of luminous intensity about the principal axis. The annular surface is designed in a manner such as to reduce the overall thickness of the module by moving the refracted ray away from the principal axis.
    Type: Grant
    Filed: September 13, 2006
    Date of Patent: May 11, 2010
    Assignee: C.R.F. Societa Consortile per Azioni
    Inventors: Piermario Repetto, Denis Bollea, Stefano Bernard, Davide Capello