Curved Surface Patents (Class 362/347)
  • Publication number: 20120268948
    Abstract: A lighting control apparatus, comprising a shield having a reflective inner surface that blocks light emanating from a light fixture in a first direction, and redirects light emanating from the light fixture to a second direction; a clamp attached to the socket of the light fixture and deriving support therefrom; and a support structure attached to the clamp that supports the shield in a position suitable for blocking and redirecting the light emanating from the light fixture
    Type: Application
    Filed: April 19, 2011
    Publication date: October 25, 2012
    Inventor: Michael D. YODER
  • Publication number: 20120262925
    Abstract: The present disclosure is directed to a molded reflective structure for a light source, which may be a light-emitting diode (“LED”). The structure includes a reflector which defines a cavity therein. The cavity is surrounded by at least one reflective side wall, and has a greatest dimension of less than about 50 mm. The at least one reflective side wall further has an initial reflectance at 460 nm of greater than about 85% and an initial whiteness index of greater than about 80. The reflector is made from a thermoplastic polymer composition that contains a material such that the at least one reflective side wall absorbs light in the ultraviolet and violet region of the electromagnetic spectrum and re-emits light in the blue region.
    Type: Application
    Filed: April 14, 2011
    Publication date: October 18, 2012
    Applicant: TICONA, LLC
    Inventor: Bing Lu
  • Publication number: 20120250318
    Abstract: An LED surface cover (1) consists of a resin molding and has amain reflector (2) which reflects light forward from a surface light source and a subsidiary reflector (3) having a reflection surface which reflects light emitted from an LED light source (4) to the main reflector (2). The main reflector (2) has an aperture portion (2a) were the LED light source can be disposed and has a curved surface for traveling light reflected from the subsidiary reflector (3) to a region forward from the surface light source. The subsidiary reflector (3) is disposed above the aperture portion (2a) formed on the main reflector (2). The reflection surface of the subsidiary reflector (3) has an inclination with respect to a surface of the aperture portion (2a). The present invention provides a lighting system capable of accomplishing surface emission by carrying out a simple method, even though the LED light source (4) having a strong directivity is used.
    Type: Application
    Filed: May 27, 2011
    Publication date: October 4, 2012
    Applicant: Mitsubishi Electric Corporation
    Inventors: Motohiro Doi, Tatsuhito Ishii, Eiji Yuasa
  • Patent number: 8277079
    Abstract: A boresight collimating device using a novel way of achieving multiple source illumination of the pin hole/reticule using one moving part, a rotating elliptical mirror, while maintaining precision alignment of the device is disclosed.
    Type: Grant
    Filed: April 26, 2010
    Date of Patent: October 2, 2012
    Assignee: Ocean Thin Films, Inc.
    Inventor: Michael Francis
  • Publication number: 20120212937
    Abstract: The invention comprises a reflector with a fastening device for an animal collar. The reflector includes a base plate with an inner surface and an outer surface. A clip, which is substantially U-shaped, runs over the inner surface, the end of the first leg of the clip being fastened by means of a movable connection to a first side of the base plate, and the end of the second leg being suitable for being irreversibly fastened to a side of the base plate opposite from the first side. On the outer surface of the base plate there are triple prisms. On the inner surface of the base plate there is/are one or more spacers. The invention also comprises a collar containing an active substance which can leave the collar over the entire length. At least one of the reflectors according to the invention is fastened to the collar.
    Type: Application
    Filed: September 6, 2010
    Publication date: August 23, 2012
    Applicant: BAYER ANIMAL HEALTH GMBH
    Inventors: Uwe Müller, Liska Vehling, Ingrid Steiner
  • Publication number: 20120188385
    Abstract: In order to reduce the number of components in the optical pointing device, and the number of steps for assembling, bonding, etc. the components, a light guide (24) according to the present invention for use in an optical pointing device (30) is configured to include a redirecting element (12) for receiving light from a touch surface (11) and reflecting the light so as to guide the light into a horizontal direction, and an image forming section (14) for receiving the reflected light and reflecting the reflected light to an opposite direction backward to the horizontal direction, so as to form an image of the light, the light guide (24) outputting the image of the light from a light output section.
    Type: Application
    Filed: September 29, 2010
    Publication date: July 26, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Takahiro Miyake, Renzaburou Miki, Tetsushi Noro, Hideya Takakura
  • Patent number: 8197101
    Abstract: A concave reflecting surface of a reflector for use in a light emitting device has micro reflector segments protruded therefrom in multiple stages and in multiple radial columns, the micro reflector segments each having a convex curved surface which is defined by a locus of a circular arc moved in parallel in a radial direction of the concave reflecting surface, and a radius of the convex curved surface, in each of the reflection regions, is set to be smaller when the convex curved surface is positioned closer to a point on which light emitted from each of the directional light sources and traveling on the light axis is incident, and is set to be larger when the convex curved surface is positioned more distant from the point.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: June 12, 2012
    Assignee: Phoenix Electric Co. Ltd.
    Inventors: Haruo Kokado, Yoshihiro Shimoda
  • Patent number: 8194337
    Abstract: Skins for light reflecting umbrellas and for methods of using light reflecting umbrellas. The invention includes skins with a series of panels in stripes of alternating colors, in a shifted configuration, in a checkered shift configuration, in a half and half configuration, in a modified half and half configuration with a center portion having a separate color combination, in a tricolor configuration, in a shifted tricolor configuration and in a center black configuration.
    Type: Grant
    Filed: March 6, 2009
    Date of Patent: June 5, 2012
    Inventor: Sergio Alejandro Ortiz-Gavin
  • Publication number: 20120120325
    Abstract: In a support pin (11) for supporting optical members (43 to 45) through which light from a LED (24) passes, the portion of a top (14), which is in contact with a diffusion plate (43), is formed of a light reflective material, and the portion of a column (12), which supports the top (14), is formed of a light transmissive material.
    Type: Application
    Filed: March 24, 2010
    Publication date: May 17, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Takaharu Shimizu
  • Patent number: 8162504
    Abstract: An illumination system includes a light source and a reflector. The reflector includes a first optical interface adjacent the light source which redirects light emitted from the light source and incident on the first optical interface via Fresnel reflection. In addition, the reflector includes a second optical interface adjacent the first optical interface on a side opposite the light source, which reflects light passing through the first optical interface via total internal reflection back towards the first optical interface. Also, a light collection system includes such a reflector.
    Type: Grant
    Filed: April 15, 2009
    Date of Patent: April 24, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tong Zhang, David Montgomery
  • Patent number: 8132940
    Abstract: In a lamp unit (1), a conductive section (2) is formed by directly extending a layer structure of a reflective member (42) from (i) one end of a square U-shape of a part of the reflective member (42) that is closest to a power feeding section for feeding power to the lamp unit (1) toward (ii) a light emission side of the lamp unit (1) and further folding back the extended portion 180 degrees in a direction opposite to the direction that it extends from the reflective member (42). The conductive section (2) is provided with a screw hole (2a) through which the reflective member is connected to another object. This achieves a lamp unit in which, even if a reflective member is fixed to another object with a screw for conduction with an external conductor, a reflective layer is less likely to peel off.
    Type: Grant
    Filed: November 5, 2007
    Date of Patent: March 13, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Kazuya Shimojoh
  • Patent number: 8111968
    Abstract: Optical devices for guiding illumination are provided each having a body of optical material with staircase or acutely angled ramp structures on its top surface for distributing light inputted from one end of the device from the front exit faces of such structures along certain angular orientations, while at least a substantial portion of the light is totally internally reflected within the body until distributed from such front exit faces. Optical devices are also provided each have a body of optical material having a bottom surface with acutely angled ramp structures and falling structures which alternate with each other, such that light is totally internally reflected within the device until reflected by such ramp structures along the bottom surface to exit the top surface of the device or transmitted through the ramp structures to an adjacent falling structure back into the device.
    Type: Grant
    Filed: July 27, 2009
    Date of Patent: February 7, 2012
    Assignee: RPC Photonics, Inc.
    Inventors: Stephen H. Chakmakjian, Donald J. Schertler, Tasso Sales, G. Michael Morris
  • Publication number: 20110317430
    Abstract: A reflector may have a reflective surface, wherein the contour of the reflective surface is traversed by a Bézier curve.
    Type: Application
    Filed: February 23, 2010
    Publication date: December 29, 2011
    Applicant: OSRAM GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG
    Inventors: Ulrich Hartwig, Henning Rehn
  • Patent number: 8067881
    Abstract: A light emitting device comprises: a concave mirror having one focal point; a plurality of main light sources each of which is arranged between the focal point and a light reflection surface of the concave mirror, and emits light toward the light reflection surface; and a plurality of main lenses each of which is arranged between a corresponding one of the main light sources and the light reflection surface, refracts the light emitted from the corresponding main light source toward the light reflection surface, and produces a virtual image of the main light source on the focal point situated at a backside of the main light source.
    Type: Grant
    Filed: December 24, 2009
    Date of Patent: November 29, 2011
    Assignee: Phoenix Electric Co. Ltd.
    Inventor: Andrei Kazmierski
  • Publication number: 20110273894
    Abstract: Embodiments of the present invention provide separate optical devices operable to couple to a separate LED, the separate optical device comprising an entrance surface to receive light from a separate LED when the separate optical device is coupled to the separate LED, an exit surface opposite from and a distance from the entrance surface and a set of sidewalls. The exit surface can have at least a minimum area necessary to conserve brightness for a desired half-angle of light projected from the separate optical device. Furthermore, each sidewall is positioned and shaped so that rays having a straight transmission path from the entrance surface to that sidewall reflect to the exit surface with an angle of incidence at the exit surface at less than or equal to a critical angle at the exit surface.
    Type: Application
    Filed: May 23, 2011
    Publication date: November 10, 2011
    Inventors: Dung T. Duong, Paul N. Winberg, Matthew R. Thomas
  • Patent number: 8033693
    Abstract: A system and method for lighting structure designs, for example LED packaging, reflector designs and optics in lighting fixture, has been illustrated. In one embodiment, the lighting structure has multiple reflective surfaces such that a first reflective surface and a second surface form a first angle less than 90 degree while the second surface and a third reflective surface forms a second angle of less than 270 degree. The method can be applied in both LEDs package designs and second level optical application designs of a light module.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: October 11, 2011
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Chin Nyap Tan, Siang Ling Oon, Bit Tie Chan
  • Publication number: 20110216540
    Abstract: A lamp light director reflector (LLDR) for being installed on a lamp having a light bulb including a housing having a convex exterior surface and a convex reflective interior surface; a hole on a top portion of the exterior surface configured to accommodate a harp nut base of the lamp therein, in a first position; and a slit on the top portion of the exterior surface configured to accommodate a harp of the lamp therein, in a second position wherein the housing is configured to be installed on the lamp such that the reflective interior surface faces the light bulb of the lamp. The first position is at a top of the lamp harp resting upon the harp, and the lamp harp passes through the slit in the second position resting atop the lamp bulb.
    Type: Application
    Filed: March 3, 2011
    Publication date: September 8, 2011
    Inventor: John McCafferty, JR.
  • Publication number: 20110194295
    Abstract: Optical systems are disclosed herein for re-distributing light generated by a light source. For example, in one exemplary embodiment of the invention, the optic includes an optical body disposed about an optical axis. The optical body includes a proximal end and a distal end and a peripheral surface extending at least partially therebetween. An input surface disposed at the optical body's proximal end receives light from a light source. An optical redirecting element that is disposed at the optical body's distal end includes an output surface and a redirecting surface. The redirecting surface is configured such that substantially all light received from the peripheral surface undergoes total internal reflection and is thereby redirected out of the optical body at least partially through the output surface, e.g., perpendicular to the optical axis and/or in a proximal direction.
    Type: Application
    Filed: February 10, 2011
    Publication date: August 11, 2011
    Applicant: Fraen Corporation
    Inventors: John R. Householder, Carlton S. Jones
  • Patent number: 7993034
    Abstract: A recessed light fixture includes an LED light source and a reflector extending 360 degrees around a center line of light output from the light source. A cross-sectional geometry of the reflector includes a bell-shaped curve with two radii of curvature that join together at an inflection point. One of the radii defines a top portion of the curve, which is disposed above the inflection point and reflects light in a concentrated manner to achieve desired light at higher angles. The other radii defines a bottom portion of the curve, which is disposed below the inflection point and is more diverging than the top portion.
    Type: Grant
    Filed: September 22, 2008
    Date of Patent: August 9, 2011
    Assignee: Cooper Technologies Company
    Inventor: Scott David Wegner
  • Patent number: 7976192
    Abstract: A lighting system and a method for providing a lighting pattern are disclosed, wherein the lighting system and method minimize non-uniform color and intensity in the lighting pattern, offers unique styling features, and provides design flexibility for the LED package and associated heatsinking devices. The lighting system including a light source, a first light bending device disposed adjacent the light source and adapted to receive light rays emitted from the light source and direct the light rays in a first desired lighting pattern, and a second light bending device disposed around the first light bending device, wherein the optical device is adapted to receive the directed light rays from the first light bending device and direct the light rays in a second desired lighting pattern.
    Type: Grant
    Filed: February 6, 2008
    Date of Patent: July 12, 2011
    Assignee: Visteon Global Technologies, Inc.
    Inventors: Jeyachandrabose Chinniah, Xiaolu Chen, Edwin Mitchell Sayers, Amir P. Fallahi
  • Publication number: 20110096548
    Abstract: A hybrid reflector system for use in lighting application. The system is particularly well-suited for use with solid state light sources, such as light emitting diodes (LEDs). Embodiments of the system include a bowl-shaped outer reflector and an intermediate reflector disposed inside the bowl and proximate to the light source. The reflectors are arranged to interact with the light emitted from the source to produce a beam having desired characteristics. Some of the light passes through the system without interacting with any of the reflector surfaces. This uncontrolled light, which is already emitting in a useful direction, does not experience optical loss normally associated with one or more reflective bounces. Some of the light emanating from the source at higher angles that would not be emitted within the desired beam angle is reflected by one or both of the reflectors, redirecting that light to achieve a tighter beam.
    Type: Application
    Filed: October 27, 2009
    Publication date: April 28, 2011
    Inventor: PAUL KENNETH PICKARD
  • Publication number: 20110090705
    Abstract: A luminaire reflector composed of a pot-like hollow, rotationally symmetrical, frustoconical reflector body having a peripheral wall that is circularly curved in a peripheral direction and increases in diameter from a rear side up to a front light exit opening is provided. The reflector body has an outwardly bent over, annular peripheral edge web that surrounds the light exit opening and is bounded by two circles of different radii. The peripheral wall of the reflector body is longitudinally divided into two to four shell-like wall parts correspondingly curved in the shape of a circular arc in a peripheral direction, or the peripheral may be formed from one piece. Each wall part, or the unitary peripheral wall, together with a part of the annular peripheral edge web, is formed from a pre-coated sheet metal material that is strongly optically reflecting at least on the inside.
    Type: Application
    Filed: June 11, 2010
    Publication date: April 21, 2011
    Applicant: JORDAN REFLEKTOREN GMBH & CO. KG
    Inventors: Dieter HACKFORT, Ioannis LAFTSIDIS, Andreas MOCKING
  • Patent number: 7922355
    Abstract: A solid state lighting device includes a light mixing cavity enclosed by a diffusive output window, heat sink walls, and a light-redirection member. A plurality of circumferentially spaced apart light emitters is secured to an interior surface of the heat sink walls. The diffusive output window and light-redirection member are therefore disposed at opposite ends of the light mixing cavity. A semiconductor lighting device driver is disposed external to the light mixing cavity in electrical communication with the light emitters. Light emitted by the plurality of light emitters is reflected from the light-redirection member and from the heat sink walls prior to exiting the light mixing cavity through the diffusive output window.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: April 12, 2011
    Assignee: LEDnovation, Inc.
    Inventors: Israel J. Morejon, Jinhui Zhai, Thong Bui
  • Publication number: 20110063848
    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: Application
    Filed: September 14, 2009
    Publication date: March 17, 2011
    Applicant: COOPER TECHNOLOGIES COMPANY
    Inventors: Wei RONG, Joseph KELLER, Joseph KOSICH, Crystal PIERZ
  • Patent number: 7891824
    Abstract: A reflector for the lighting device and an illumination system of the projection apparatus are provided. The reflector comprises a first reflecting structure and a second reflecting structure disposed on the portion of the first reflecting structure. The reflecting surfaces of the first and second reflecting structures are formed with a distance therebetween. After the first portion of the light is reflected from the first reflecting surface and the second portion of the light is reflected from the second reflecting surface, the second portion of the light is adapted to remove the centrally dimmed area at the opening of the lighting device. Thus, the luminance performance can be improved.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: February 22, 2011
    Assignee: Delta Electronics, Inc.
    Inventor: Junejei Huang
  • 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
  • Publication number: 20100328959
    Abstract: A lamp reflector includes a reflector cup having an enlarged end and a narrow end being opposite to the enlarged end. The narrow end gradually is expanded toward the enlarged end. The reflecting cup has multiple tiers longitudinally formed thereon along the axis. Each tier has multiple convex surfaces longitudinally equidistantly formed on an inner periphery thereof for scattering light beams emitted from different angles. Each tier has multiple concave faces respectively radially formed on the inner periphery thereof for condensing light beams emitted form different angles.
    Type: Application
    Filed: June 24, 2009
    Publication date: December 30, 2010
    Inventor: WEN-SUNG LEE
  • Patent number: 7850345
    Abstract: An LED lighting device comprises an LED light source; a thermal management element coupled to the LED light source to manage heat generated by the LED light source; a primary reflector with at least one reflective surface oriented to collect light from the LED light source and direct collected light into a first reflected beam; at least one central inclined reflector surface disposed to receive light from the LED light source; and at least one corresponding angled mirror surface disposed to collect light from the central inclined reflector surface and to direct the collected light into a second reflected beam (see FIG. 1).
    Type: Grant
    Filed: August 16, 2006
    Date of Patent: December 14, 2010
    Assignee: Illumination Management Solutions Inc.
    Inventors: Ronald G. Holder, Greg Rhoads
  • Patent number: 7841748
    Abstract: The diffractor has a profile defined by first, second and third parabolic segments, and continuously tapering facets for improved lighting performance. Different diffuser geometries are provided to generate differing light distribution patterns, including a conical diffuser, and a diffuser having a fresnel lens portion and an angled flange portion. Equal numbers of facets and/or facets of similar geometrical profile may be provided on the diffuser and on the diffractor.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: November 30, 2010
    Assignee: RLR Industries, Inc.
    Inventors: David D. Rodstein, Stewart B. Lewis
  • Publication number: 20100284167
    Abstract: Embodiments of the present invention provide separate optical devices operable to couple to a separate LED, the separate optical device comprising an entrance surface to receive light from a separate LED when the separate optical device is coupled to the separate LED, an exit surface opposite from and a distance from the entrance surface and a set of sidewalls. The exit surface can have at least a minimum area necessary to conserve brightness for a desired half-angle of light projected from the separate optical device. Furthermore, each sidewall is positioned and shaped so that rays having a straight transmission path from the entrance surface to that sidewall reflect to the exit surface with an angle of incidence at the exit surface at less than or equal to a critical angle at the exit surface.
    Type: Application
    Filed: May 26, 2010
    Publication date: November 11, 2010
    Inventors: Dung T. Duong, Paul N. Winberg, Matthew R. Thomas
  • Patent number: 7819533
    Abstract: A light source unit and a projector apparatus secure a certain light quantity by improving the utilization efficiency of light, and thereby realize miniaturization. The light source unit includes a reflector having an opening for housing a lamp and an opening for radiating light, the reflector having an inner surface subjected to mirror surface working to be shaped in a polynomial surface, a light source equipped with a bulb and an electrode introducing unit guiding an electrode to the bulb, the bulb being inserted into the reflector from the opening and being disposed so that a focus position of the light reflected by an inner wall of the reflector is not located on the electrode introducing unit, and a condenser lens condensing the light emitted from the reflector, the condenser lens disposed so as to be located on an optical axis of light emitted from the light source.
    Type: Grant
    Filed: February 23, 2006
    Date of Patent: October 26, 2010
    Assignee: Casio Computer Co., Ltd.
    Inventor: Yukio Suzuki
  • Patent number: 7798677
    Abstract: An illumination unit for emitting light along an optic axis for a projection system includes an LED die and a collimator lens. The collimator lens includes a central part and a peripheral part. The central part has a first light transmission surface and a second light transmission surface opposite to the first light transmission surface. The peripheral part which is around the central part has an inner refraction wall coupled to the first light transmission surface to form a hollow for situating the LED die, an outer reflection wall opposite to the inner refraction wall, and a refraction surface connecting to the second light transmission surface and the outer reflection wall. Both the central part and the peripheral part of the collimator lens are rotationally asymmetrical corresponding to the optic axis.
    Type: Grant
    Filed: April 29, 2008
    Date of Patent: September 21, 2010
    Assignee: Himax Display, Inc.
    Inventors: Ho-Chi Huang, Baolong Zhang
  • Patent number: 7766495
    Abstract: A light-emitting device including a light source that exhibits polarization anisotropy and a reflector that is shaped so that for light emitted in at least two directions from the light source, the angle between the dominant polarization directions after reflecting from the reflector is smaller than the angle between the dominant polarization directions before reflecting from the reflector. In the light-emitting device the light source may be a light-emitting diode chip or one of a plurality of light sources.
    Type: Grant
    Filed: June 24, 2008
    Date of Patent: August 3, 2010
    Assignee: Samsung LED Co., Ltd.
    Inventors: Martin F. Schubert, Sameer Chhajed, Jong Kyu Kim, E. Fred Schubert, Jaehee Cho
  • Publication number: 20100182790
    Abstract: The invention relates to a reflector (1) which comprises an ellipsoidal light reflective wall (21) and a light output (3) lying in a light output plane (32). The light reflective wall is defined as a portion of the internal surface of an ellipsoid. The focal axis (25) of the ellipsoid has a determined angle CC with respect to an axis (V) perpendicular to the light output plane (32). The light reflective wall (21) is the portion of the ellipsoid, which is taken between the most remote point (24) of the ellipsoid from the light output plane and the light output plane (32). The invention further relates to a luminaire which comprises such a reflector and a light source.
    Type: Application
    Filed: April 23, 2008
    Publication date: July 22, 2010
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventor: Louis Montagne
  • Publication number: 20100177520
    Abstract: A foldable reflector screen includes a flexible, cloth-like reflective element having an inside and an outside, a supporting and tensioning structure arranged to support the reflective element on the outside, and a carrier element including at least one lamp and mounting the supporting and tensioning structure. The reflector screen has an open state in which the reflective element forms an essentially rotationally symmetrical body having an axis of rotation and has a light outlet opening. The reflective element comprises at least two reflective sections. The two reflective sections have in each case a different geometrical shape in a section containing the axis of rotation of the reflective element.
    Type: Application
    Filed: June 25, 2008
    Publication date: July 15, 2010
    Inventor: Hans-Werner Friedrich Briese
  • Patent number: 7748871
    Abstract: The present invention comprises a method of enhancing illumination by a variety of lamp types through the use of reflective technologies, for example, replacement of expensive high intensity density of mercury vapor lamps with low wattage fluorescent tubes having at least one and in some cases, up to three reflective surfaces for focusing otherwise lost light toward a target illumination area. Further, the placement of light sources at the focal point of said reflective surfaces aids in optimizing the amount of light focused in a desired direction.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: July 6, 2010
    Inventor: Randal D. Walton
  • Patent number: 7726847
    Abstract: The invention provides a method and apparatus for positioning a lighting device in a reflector. The exemplary apparatus includes a reflector member comprising a side wall with a reflector surface extending from the side wall. A lighting device support member is coupled to and extends from the side wall and defines at least one channel for engaging a support arm and a fastener channel for engaging a fastener member. The apparatus further includes a lighting device secured to a bracket for coupling the lighting device to the lighting device support member. The bracket defines a support arm for engaging the at least one support arm channel, The lighting device support member positions the lighting device adjacent to the reflector surface. The apparatus also includes a fastener for securing the bracket to the lighting device support member by engaging the fastener channel.
    Type: Grant
    Filed: January 25, 2006
    Date of Patent: June 1, 2010
    Assignee: Cooper Technologies Company
    Inventor: Tim Bingaman
  • Patent number: 7722213
    Abstract: A lighting apparatus comprises a housing and a first reflector. The first reflector is mounted beneath the light source and includes a plurality of segmented reflectors, each having at its top, a installation hole and at its bottom, an opening wider than the installation hole. A second reflector is positioned beneath the first reflector. The height of the second reflector causes a first light shielding angle defined by a straight line passing through the installation hole and the bottom edge of the corresponding segmented reflector to be larger than a second light shielding angle defined by a straight line passing through the bottom edge of the segmented reflector and the bottom edge of the second reflector.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: May 25, 2010
    Assignee: Toshiba Lighting & Technology Corporation
    Inventors: Masaru Inoue, Keiichi Shimizu, Sumio Hashimoto, Hirokazu Otake, Mitsuhiko Nishiie, Takuro Hiramatsu, Masatoshi Kumagai
  • Publication number: 20100066985
    Abstract: The present invention provides for example a reflecting mirror that has a reflecting surface that is capable or preventing the rise of the temperature of the electrodes due the reflection light.
    Type: Application
    Filed: August 7, 2008
    Publication date: March 18, 2010
    Inventors: Naoki Uekura, Toshiaki Ogura
  • Patent number: 7670030
    Abstract: A concave reflector can form a more uniform beam of light. The light source can be an LED with a nominally lambertian radiation pattern. LED can be high power requiring heatsink. Light reflected by reflector and light exiting without hitting reflector can form coinciding beams of essentially same size. Matching of sizes of reflected and unreflected components can be achieved in part by having a tangent at a rim parallel to axis of reflector. For some LEDs hot spot in center of beam is reduced by curvature becoming increasingly sharp when approaching along reflective curve a critical radius at which tangent to reflector curve in plane containing axis of reflector has angle near 45 degrees with respect to axis of reflector. Reflector can be used in, for example, work lights, desk lamps, accent lights, headlamps, and flashlights. Lamps can have multiple reflectors with one LED for each reflector.
    Type: Grant
    Filed: February 13, 2007
    Date of Patent: March 2, 2010
    Assignee: Brasscorp Limited
    Inventor: Donald L. Klipstein
  • Publication number: 20090310366
    Abstract: A light emitting diode lens structure includes a lens having an upper section and a lower section. The lower section is provided with a light emitting diode accommodation part. The upper section is coated with a specular reflection layer to form a reflecting surface facing the light emitting diode accommodation part. An illumination apparatus with the light emitting diode lens structure includes a lampshade, a locking module, an electrode module, and a light emitting diode. The lampshade has a reflecting light surface and an aperture. The locking module is coupled on the lampshade and has a through hole corresponding to the aperture. The electrode module is coupled on the locking module and corresponds to the through hole. This design provides a significant reduction in glare to reduce eyestrain.
    Type: Application
    Filed: June 12, 2008
    Publication date: December 17, 2009
    Applicant: COMPOUND SOLAR TECHNOLOGY CO., LTD.
    Inventors: Cheng-Yu Huang, Te-Kai Ku, Hsin-Kai Wang
  • Patent number: 7628519
    Abstract: A light system is disposed to be located on top of guide poles on either side of a trailer. The light system is in-line with the guide pole and may almost appear to be a part of the poles. The elevated light system allows for the brake lights to be more easily seen by following drivers and it normally keeps the brake lights from being immersed in water when the trailer is used in loading or unloading a boat or other marine craft. Additionally, in comparison with lights attached to the side of a guide pole, the in-line nature of the light system makes it less likely that the light will be knocked off or damaged when backing a trailer into a tight garage opening. Furthermore, a tell-tale lens is located opposite the primary lens and it allows the driver to be able to verify that the lights are working.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: December 8, 2009
    Inventor: Jeffrey Purdy
  • Publication number: 20090273934
    Abstract: A lamp is disclosed that includes a light source that requires high voltage for starting. A reflector body includes an electrically conductive reflective surface that is oriented to receive light from the light source and direct the light in the desired direction. A preselected surface portion of the reflector body is devoid of the electrically conductive reflective surface. First and second lead assemblies associated with the light source, and that supply power thereto, pass through openings in the reflector body. The lead assemblies are spaced from the electrically conductive reflective surface portion by the preselected surface portion that is devoid of the reflective material to preclude arcing. Asymmetrical lead wire assemblies may also be advantageously used to increase the electrical standoff.
    Type: Application
    Filed: April 30, 2008
    Publication date: November 5, 2009
    Inventors: Michael Matthew Secen, David A. Gwinn
  • Patent number: 7607787
    Abstract: A light source unit which is reduced in size while securing a certain quantity of light by increasing the utilization efficiency of light and a projector system utilizing the light source unit. The light source unit includes a reflector whose internal surface is planished to provide a mirror reflection effect and which is formed with a lamp accommodation opening and a light emitting opening, a light source including a bulb which radiates light and a lamp comprising an electrode introducing portion that guides electrodes into the bulb, and a condenser which lies on an optical axis of the light radiated from the lamp and which is adapted to gather the light that is radiated from the lamp and that is reflected on the reflector.
    Type: Grant
    Filed: December 1, 2005
    Date of Patent: October 27, 2009
    Assignee: Casio Computer Co., Ltd.
    Inventor: Yukio Suzuki
  • Patent number: 7593615
    Abstract: Optical devices for guiding illumination are provided each having a body of optical material with staircase or acutely angled ramp structures on its top surface for distributing light inputted from one end of the device from the front exit faces of such structures along certain angular orientations, while at least a substantial portion of the light is totally internally reflected within the body until distributed from such front exit faces. Optical devices are also provided each have a body of optical material having a bottom surface with acutely angled ramp structures and falling structures which alternate with each other, such that light is totally internally reflected within the device until reflected by such ramp structures along the bottom surface to exit the top surface of the device or transmitted through the ramp structures to an adjacent falling structure back into the device.
    Type: Grant
    Filed: February 10, 2006
    Date of Patent: September 22, 2009
    Assignee: RPC Photonics, Inc.
    Inventors: Stephen H. Chakmakjian, Donald J. Schertler, Tasso Sales, G. Michael Morris
  • Patent number: 7575331
    Abstract: An example light guide assembly for illuminating a display of an instrument cluster includes a light receiving portion, a light propagating portion and a conical surface positioned between the light receiving portion and the light propagating portion. An exterior surface of the light propagating portion includes a plurality of lobes that uniformly illuminate the display as light propagates from the light receiving portion to the conical surface and through the light propagating portion.
    Type: Grant
    Filed: November 28, 2006
    Date of Patent: August 18, 2009
    Assignee: Continental Automotive Systems US, Inc.
    Inventors: Vyacheslav B. Birman, Werner Eckardt, Francisco Ramirez-Aldana
  • Publication number: 20090201693
    Abstract: A trough reflector for a lighting system is disclosed, wherein the trough reflector produces a lighting pattern having a stepped horizontal cut-off, maximizes collection efficiency, and minimizes undesirable beam patterns. The trough reflector includes a reflective surface having a substantially parabolic curvature for directing light, wherein the reflective surface is split into a first portion and a second portion. The second portion offset relative to the first portion of the trough reflector. The trough reflector further includes a plurality of reflective side walls disposed adjacent the reflective surface, wherein the reflective side walls cooperate with the reflective surface to direct light rays to form a desired lighting pattern.
    Type: Application
    Filed: February 13, 2008
    Publication date: August 13, 2009
    Inventors: Jeyachandrabose Chinniah, Edwin Mitchell Sayers, Chris L. Eichelberger
  • Patent number: 7572037
    Abstract: Disclosed herein is a light emitting device, which includes a light emitting element configured to emit a light, and a concave mirror portion configured to reflect the light emitted from the light emitting element, the concave mirror portion being erected on a circumference of an emission surface of the light emitting element. The concave mirror portion has a light reflecting surface obtained by rotating a part of a parabola. A central axis of the rotation is set in a position of passing through a side of the parabola with respect to a middle point of a line segment joining the part of the parabola and a focal point of the parabola.
    Type: Grant
    Filed: March 6, 2008
    Date of Patent: August 11, 2009
    Assignee: Sony Corporation
    Inventors: Toshihiro Fukuda, Jiro Yamada, Nobutoshi Asai
  • Patent number: 7556399
    Abstract: A light reflector assembly for providing selective direct and indirect lighting includes a first section reflecting light from a first light source in a first direction and a second section reflecting light from a second light source in a second direction. The first section and the second section are connected by a central section or by end caps. The first section substantially surrounds a first light source to provide direct lighting for the user, and the second section substantially surrounds a second light source to provide indirect lighting for the user, either at the same time or independently, as desired by the user. The position of the first and second section may be adjusted to control the light dispersed by the light sources as desired by the user, and may further include secondary reflectors or diffusers for adjustment of the light.
    Type: Grant
    Filed: January 25, 2007
    Date of Patent: July 7, 2009
    Inventor: Michael L. Bailey
  • Patent number: RE43321
    Abstract: A light source lamp unit (10) includes a light source lamp (11), an ellipsoidal reflector (12) and a plate body (19). The plate body (19) is provided behind the reflector (12) with a gap kept therebetween, which has a shape corresponding to the profile of a reflecting portion (122) of the reflector (12). A cooling channel for passing a cooling air is formed between the plate body (19) and the reflector (12). The width of the cooling channel in a direction along an optical axis of the light source lamp (11) is minimized at a part near a neck portion (121) of the reflecting portion (122) and enlarged toward the peripheral edge of the reflecting portion (122) of the reflector (12).
    Type: Grant
    Filed: July 12, 2007
    Date of Patent: April 24, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Motoyuki Fujimori, Takeshi Takezawa, Hiroyuki Meguro, Masakazu Kitamura