With Or Including Plural, Distinct Reflecting Surfaces Patents (Class 362/297)
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Publication number: 20120275136Abstract: 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: ApplicationFiled: July 3, 2012Publication date: November 1, 2012Applicant: Cooper Technologies CompnayInventors: Wei Rong, Joseph Keller, Joseph Kosich, Crystal Pierz
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Patent number: 8297798Abstract: An lighting fixture includes a reflector, a pedestal, and a lighting module. The reflector includes an opening formed therethrough and the pedestal is positioned in communication with the opening. The lighting module is coupled to the pedestal. In certain embodiments, the reflector is organically shaped and includes four parts, where each part is substantially S-shaped. The lighting module includes a frame and indirect LEDs that emit light toward the interior surface of the reflector. The indirect LEDs are positioned below the lowest portions of the reflector a are positioned at an angle with respect to a horizontal axis. The frame includes a cut-off wall that provides for a cut-off angle for the indirect LEDs and one or more fins. The frame and the pedestal provide thermal management for the LEDs. In certain embodiments, the lighting module also includes one or more of direct LEDs and an active cooling module.Type: GrantFiled: April 16, 2010Date of Patent: October 30, 2012Assignee: Cooper Technologies CompanyInventors: Chantal Louise Pittman, Ann Marie Reo
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Patent number: 8297785Abstract: The light-emitting apparatus (1) of the present invention includes: a storage case (12) that includes a base board (10) having a concave portion (10a) and a lid portion (11) covering the concave portion (10a); and a plurality of light-emitting elements (13) that are disposed on an inner surface (12a) of the storage case (12), an opening (11a) is formed in the lid portion (11), at least a part of the inner surface (12a) is a light-reflecting surface that wave-guides light emitted by the light-emitting elements (13) as light sources to a position directly underneath the opening (11), and a reflecting portion (15) that reflects the light emitted by the light-emitting elements (13) as the light sources toward the opening (11a) is formed directly underneath the opening (11a). Thereby, the light-emitting apparatus having a point light source with high brightness can be provided.Type: GrantFiled: December 15, 2011Date of Patent: October 30, 2012Assignee: Panasonic CorporationInventor: Hideo Nagai
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Patent number: 8292445Abstract: An optical system with an LED light source utilizes a base with an inverted conical shape to conduct light to a phosphor layer. The phosphor layer emits light from both upper and lower surfaces. The base and a substantially mirror image cap element facilitate efficient extraction of the phosphor-generated light from the optical system so that the output of the system is omni-directional light suitable for common lighting applications. The system is very efficient in that nearly all the light generated by the LED is transmitted to the phosphor layer, and nearly all the light emitted from the phosphor layer is output from the system.Type: GrantFiled: January 27, 2012Date of Patent: October 23, 2012Assignee: Rambus Inc.Inventor: Brian E Richardson
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Patent number: 8287137Abstract: A projector apparatus with multi-light sources and a light coupling module thereof are disclosed. The projector with multi-light sources comprises a light incident region, a light tunnel, a color wheel, a light coupling module, and a plurality of light sources, all disposed in the light incident region. The light coupling module comprises a light coupling device, a light gathering device, and a reflection device. The light sources provide a plurality of light beams, which are substantially coupled into a single light beam by the light coupling device. The single light beam travels through the color wheel and the light tunnel through the light gathering device and light reflection device.Type: GrantFiled: January 5, 2007Date of Patent: October 16, 2012Assignee: Delta Electronics, Inc.Inventor: Hung-Ying Lin
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Patent number: 8287139Abstract: A light source device, includes: an arc tube, and a pair of sealing portions; a reflector; and a sub mirror configured to reflect the light emitted from the arc tube toward the arc tube, and disposed of the other side of the sealing portion in such a manner as to cover a part of the outer surface of the tube spherical portion of the side of the illumination area, the sub mirror include a plurality of reflection members provided with reflection surfaces having different shapes, and the distance between the illumination axis and the outer shape of one of the adjoining reflection members is different from the distance between the illumination axis and the other of the adjoining reflection members.Type: GrantFiled: February 17, 2010Date of Patent: October 16, 2012Assignee: Seiko Epson CorporationInventor: Susumu Wada
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Publication number: 20120257393Abstract: Light fixtures, methods for displaying light, and light fixture housings having enhanced appearance and providing distinctive light patterns are provided. The light fixture includes a light source, and a housing mounted about the light source. The housing includes a body, for example, a transparent glass body, having an outer surface having a plurality of facets adapted to refract at least some light emitted by the light source; and an opening in the body to emit light. Dimensions of the housing body are defined to produce substantially uniform light patterns on surfaces adjacent the light fixture. Methods of displaying light and faceted light housings are also disclosed.Type: ApplicationFiled: April 11, 2011Publication date: October 11, 2012Applicant: SCHONBEK WORLDWIDE LIGHTING INC.Inventor: Daniel ZEISNER
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Patent number: 8277085Abstract: A lighting device has a light source, a reflector dish with a central opening facing the light source, and a lens between the light source and the reflector dish. The lens is so arranged that light emitted from the source towards the central opening of the reflector dish is diffracted away from the central opening. The reflector dish is arranged to reflect light received from the source through the lens back past the lens and source.Type: GrantFiled: October 5, 2009Date of Patent: October 2, 2012Assignee: Light Prescriptions Innovators, LLCInventors: Waqidi Falicoff, William A. Parkyn
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Patent number: 8277054Abstract: 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: GrantFiled: August 7, 2008Date of Patent: October 2, 2012Assignee: Panasonic CorporationInventors: Naoki Uekura, Toshiaki Ogura
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Patent number: 8277086Abstract: A reflector has a one-piece sheet-metal body having an anodized front face and unitarily formed with a central annular part lying generally in a plane and having an inner periphery generally centered on an axis and adapted to accommodate a light source and an outer periphery. A plurality of flat fingers project from the outer periphery, extend at an acute angle to the plane, have outer ends, and each have a pair of generally parallel side edges. Each edge of each finger is closely juxtaposed with the edge of the adjacent finger and the fingers form with the annular part a concave shape.Type: GrantFiled: March 5, 2010Date of Patent: October 2, 2012Assignee: Alux Luxar GmbH & Co. KGInventor: Dietrich Heitmann
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Patent number: 8272768Abstract: The light emitting device comprises: a bowl-shaped reflector; a point light source; and a combined lens provided on the light axis of the point light source. And the combined lens has: a convex lens part having a focal point coinciding with the point light source, refracting center light around the light axis into parallel light; and a concave lens part provided around the convex lens part, and refracting and diffusing light having an angle with the light axis larger than an angle between the center light and the light axis so as to increase the angle with the light axis. A virtual focal point of the light refracted and diffused with the concave lens part coincides with the focal point of the paraboloid of revolution.Type: GrantFiled: February 17, 2011Date of Patent: September 25, 2012Assignee: Phoenix Electric Co., Ltd.Inventors: Andrei Kazmierski, Tomihiko Ikeda
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Patent number: 8251546Abstract: An LED module includes a housing, a plurality of LED modules, a plurality of first and second reflectors, a heat sink attached to the housing and an envelope engaged with the housing and covering the LED modules, the first and second reflectors. The housing includes a base and four sidewalls extending upwardly from edges of the base. The LED modules are mounted on the base. The first reflectors are accommodated in the housing and each cover a corresponding LED module. The second reflectors are mounted on the base and each located at a lateral side of the corresponding LED module.Type: GrantFiled: January 12, 2010Date of Patent: August 28, 2012Assignees: Fu Zhun Precision Industry (Shen Zhen) Co., Ltd., Foxconn Technology Co., Ltd.Inventors: Chin-Chung Chen, Shi-Yu Song
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Patent number: 8253310Abstract: An exemplary light fixture includes a holder, an envelope and a lamp body. The lamp body includes a heat dissipation portion, a light source and a shield. The heat dissipation portion has top and bottom ends connecting to the holder and the envelope, respectively. The light source is mounted on the bottom end of the heat dissipation portion and covered by the envelope. The heat dissipation portion includes a plurality of fins extending from the top end to the bottom end of the heat dissipation portion. A passage is defined between every two adjacent fins. The shield surrounds the fins and defines a plurality of windows therein, communicating with the passages.Type: GrantFiled: August 10, 2011Date of Patent: August 28, 2012Assignees: Furui Precise Component (Kunshan) Co., Ltd., Foxconn Technology Co., Ltd.Inventor: Ben-Fan Xia
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Patent number: 8231251Abstract: Collection optics are used with one or more light emitting diodes to produce, e.g., collimated light. The collection optics are produced in multiple pieces including a small reflective ring that surrounds the one or more light emitting diodes. The reflective ring may be positioned relative to the LEDs, using a mesa upon which the LEDs are mounted, as a lateral positioning guide. A separate upper reflector uses the reflective ring as a lateral positioning guide during assembly. The reflective ring and the upper reflector include reflective sidewalls that are approximately continuous when the reflective ring and upper reflector are assembled.Type: GrantFiled: October 28, 2005Date of Patent: July 31, 2012Assignee: Philips Lumileds Lighting Company LLCInventors: Gregory W. Eng, Mina Farr, Matthijs Keuper, Stefan Eberle, Franklin J. Wall, Jr.
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Patent number: 8231238Abstract: The present invention discloses a method for enhancing light directivity of a lighting apparatus. The method for enhancing light directivity of a lighting apparatus, comprising providing a light source module that comprises at least one light emitter; and providing a reflecting device that surrounds said light emitter or said light source module to reflect light emitted from said light emitter and direct the light toward a same direction, wherein said reflecting device comprises a first surface, said first surface comprises at least two planes in which every two planes are connected with an included angle more than 90 degrees and less than 180 degrees, said reflecting device surrounds one light emitter or surrounds said light source module.Type: GrantFiled: April 4, 2011Date of Patent: July 31, 2012Assignee: Chung Yuan Christian UniversityInventors: Yi-Hua Fan, Rong-Jhe Chen, Yi-Lin Liao, Sheng-Kai Chang, Kai-Yin Huang
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Patent number: 8226269Abstract: A color mixer for producing a colored beam of light in combination with a light source. The color mixer includes a plurality of color media configured to pass a light beam such that the color media may be repositioned relative to one another to produce a color mixing effect resulting in many available combinations of color and hue.Type: GrantFiled: September 8, 2008Date of Patent: July 24, 2012Assignee: Apollo Design Technology, Inc.Inventors: Jeff Mateer, Keersten Nichols, Michael Wood
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Patent number: 8220948Abstract: 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: GrantFiled: September 14, 2009Date of Patent: July 17, 2012Assignee: Cooper Technologies CompanyInventors: Wei Rong, Joseph Keller, Joseph Kosich, Crystal Pierz
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Patent number: 8220965Abstract: A laser device including a concave mirror converging beamlets from a plurality of high efficiency diode lasers to a focal point, an integrating convex mirror placed at or near the focal point reflects a first portion of the beamlets back to the concave mirror and allows a second portion through to a light transmitter. The second portion of beamlets exists the light transmitter as a homogenized uniform laser beam having substantially uniform convergence and focus.Type: GrantFiled: April 20, 2010Date of Patent: July 17, 2012Inventor: Martin A. Stuart
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Patent number: 8220941Abstract: A solar simulator for testing photovoltaic cells is disclosed herein. The solar simulator includes a housing having an opening through which light is emitted. The solar simulator employs a plurality of concave cylindrical mirrors and a plurality of flat mirrors that reflect and redirect images of an illuminated light source such that an observer at a target area outside the housing will perceive multiple instances of the illuminated light source. The housing also contains a flat top cover mirror and a flat bottom cover mirror that function to reflect additional light through the opening and toward the target area.Type: GrantFiled: March 13, 2007Date of Patent: July 17, 2012Assignee: The Boeing CompanyInventor: Douglas Jungwirth
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Patent number: 8215801Abstract: Disclosed is a lighting apparatus. The lighting apparatus includes: a first and a second light emitting diode (LED) module including a plurality of LEDs disposed on one side of a substrate respectively; a heat radiating body which radiates heat from the plurality of the LEDs, includes a space for housing the first and the second LED modules, and includes an opening allowing light emitted from the plurality of the LEDs of the first and the second LED modules to be emitted; and, a reflector being disposed on the heat radiating body and reflecting the light emitted from the plurality of the LEDs of the first and the second LED modules to the opening.Type: GrantFiled: December 9, 2010Date of Patent: July 10, 2012Assignee: LG Innotek Co., Ltd.Inventors: Kyung-il Kong, Seok Jin Kang, Ji Yeon Hyun, Eunhwa Kim
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Patent number: 8210727Abstract: A vehicle headlamp of the present invention is provided with: a semiconductor-type light source; a main reflecting surface; a first auxiliary reflecting surface; a shade; a second auxiliary reflecting surface; a third auxiliary reflecting surface; and a fourth auxiliary reflecting surface. The shade forms a light distribution pattern for passing, having cutoff lines. The first auxiliary reflecting surface and the second auxiliary surface form a light distribution pattern for overhead sign. The first auxiliary reflecting surface, the third auxiliary reflecting surface, and the fourth auxiliary reflecting surface form an auxiliary light distribution pattern between the light distribution pattern for passing, having the cutoff lines, and a light distribution pattern for overhead sign. As a result, the vehicle headlamp of the present invention improves visibility.Type: GrantFiled: September 8, 2009Date of Patent: July 3, 2012Assignee: Ichikoh Industries, Ltd.Inventor: Yasufumi Suzuki
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Patent number: 8206005Abstract: A light assembly is disclosed which can include an LED array and a reflector. The LED array can include a plurality of LEDs which are disposed such that each LED is substantially aligned to define a focal axis. Each LED can emit light substantially along an optical output axis, with each optical output axis being perpendicular to the focal axis. The optical output axis of the LED array can be disposed in intersecting relationship with the reflector surface. The reflector can be defined by a curve section defined with respect to a principal axis. The principal axis and the output axis of the LED array can be in non-parallel relationship with each other. The optical output axis of the LED array can be substantially perpendicular to the principal axis of the curve section of the reflector.Type: GrantFiled: August 17, 2009Date of Patent: June 26, 2012Assignee: Federal Signal CorporationInventor: Robert A. Czajkowski
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Patent number: 8206011Abstract: An apparatus and method for a high intensity lighting fixture. In one aspect, instead of a spun aluminum bowl-shaped reflector, a die cast metal reflector frame, somewhat simulating a bowl shape, includes an inner surface with mounting structure. A high reflectance sheet or plurality of high reflectance inserts are placed onto the mounting structure to create a reflecting surface. This allows high customability of the reflecting surface and minimizes light loss.Type: GrantFiled: July 14, 2011Date of Patent: June 26, 2012Assignee: Musco CorporationInventors: Myron Gordin, Timothy J. Boyle
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Patent number: 8197110Abstract: A light assembly is disclosed which can include one or more light emitting diodes and a reflector. The reflector includes a reflective surface and is positioned to reflect at least a portion of the light emitted by the light emitting diode. The reflector further includes a pair of flanking planar reflective surfaces. The flanking planar reflective surfaces can be positioned at a distance one half the predetermined distance between two light emitting diodes, and can simulate an extended length of the reflector.Type: GrantFiled: March 1, 2007Date of Patent: June 12, 2012Assignee: Federal Signal CorporationInventor: Bob Czajkowski
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Patent number: 8197105Abstract: An LED-lamp (lighting bar) comprises a plurality of solid state light emitters (LEDs) configured as an elongate (linear) array and a generally concave cylindrical light reflective surface disposed along the length of the array of LEDs. The concave light reflective surface is configured to direct light over an illumination plane located to a side of the lamp. The LEDs can be configured such that their emission axes are oriented to the illumination plane at an angle of between 0° and 90. The lamp can further comprise a second generally concave cylindrical light reflective surface in which the concave light reflective surfaces are configured to direct light over illumination planes located on respective sides of the lamp. There is also disclosed a panel lamp and sign incorporating the lamp(s) of the invention.Type: GrantFiled: August 9, 2010Date of Patent: June 12, 2012Assignee: Intematix CorporationInventor: Haitao Yang
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Patent number: 8197101Abstract: 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: GrantFiled: December 8, 2009Date of Patent: June 12, 2012Assignee: Phoenix Electric Co. Ltd.Inventors: Haruo Kokado, Yoshihiro Shimoda
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Publication number: 20120138122Abstract: Apparatus and methods are provided for use with photovoltaic cells, light emitting devices and the like. Reflective regions are formed on a sheet of flexible, non-metallic sheet material. The sheet material is folded to at least partially define a finished shape. Supports complete and maintain the folded condition such that one or more truncated parabolic troughs are defined. Incident light may be received and concentrated, or emitted light concentrated and projected, by way of the troughs.Type: ApplicationFiled: October 22, 2009Publication date: June 7, 2012Inventors: John P. Whitlock, Scott Lerner, Stephan R. Clark, Karl S. Weibezahn
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Patent number: 8186861Abstract: Each of a pair of lower reflection areas, which are located on both left and right sides of an optical axis in a lower end portion of a reflective surface of a reflector, respectively, is formed so as to converge light from a light source at a position located forward of a rear side focal point of a projection lens in a horizontal direction, and on the same lateral side as that of each of the lower reflection areas with respect to the optical axis. Thus, the pair of light ray bundles are emitted from the projection lens, whereby a pair of additional light distribution patterns are formed on both sides of a lateral direction central portion in an upper area of a high-beam distribution pattern, respectively. The upper area of the high-beam distribution pattern is thus made bright widely in a lateral direction.Type: GrantFiled: August 3, 2009Date of Patent: May 29, 2012Assignee: Koito Manufacturing Co., Ltd.Inventor: Shinji Kagiyama
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Patent number: 8177396Abstract: A method and apparatus to increase efficiency of wide area lighting fixtures having a lamp mounting opening in a reflector or reflector frame, which results in gap(s) or spaces that do not control incident light to the intended target. The gap(s) or spaces(s) are covered with reflecting surfaces which do control incident light to increase efficiency of the fixture.Type: GrantFiled: July 12, 2010Date of Patent: May 15, 2012Assignee: Musco CorporationInventor: Myron Gordin
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Publication number: 20120115215Abstract: A light source reflector includes a structure having three or more internal reflective surfaces defining a first light entry aperture and a second light exit aperture having an area that is greater than the area of the entry aperture. A single light source, or a plurality of uniformly distributed light sources, such as one or more LEDs, located proximal the entry aperture provides illumination, which impinges on the reflective surfaces from the entry aperture and is reflected off the surfaces to provides a substantially uniform illumination pattern exiting the exit aperture. The reflector advantageously allows for the use of a source (e.g., LED(s)) that is smaller than the targeted area of illumination and also avoids creating hot-spots as the reflector does not focus the light, but rather reflects mirror images of the source off of the reflective surfaces.Type: ApplicationFiled: November 4, 2010Publication date: May 10, 2012Applicant: LI-COR, Inc.Inventor: Robert D. Eckles
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Publication number: 20120106126Abstract: The phosphor wheel (wavelength conversion element) includes: a substrate; a light-emitting element having at least a phosphor layer provided on one surface of the substrate; and a first reflective portion provided in at least a first side face of the phosphor layer to change a propagation direction of the light propagating inside the phosphor layer such that an angle with respect to a normal line of the emission face where the fluorescent light is emitted from the light-emitting element is reduced.Type: ApplicationFiled: October 25, 2011Publication date: May 3, 2012Applicant: SEIKO EPSON CORPORATIONInventors: Shigeo NOJIMA, Tsuyoshi KANEKO, Daisuke SAWAKI
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Patent number: 8162511Abstract: A wide area lighting fixture including a relatively large visor extending from a bowl shaped fixture reflector. The distal portion of the visor extends relatively far outwardly and downwardly and around the fixture opening. In operating position, the visor blocks most or all off-field direct view of the light source in the fixture. Optionally a light absorbing surface or insert can be placed at the very bottom of the bowl shaped reflector to absorb or otherwise stop light that otherwise might go off field to further control spill light, glare, and sky glow or uplight.Type: GrantFiled: February 22, 2011Date of Patent: April 24, 2012Assignee: Musco CorporationInventors: Myron Gordin, Joe P. Crookham
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Patent number: 8157414Abstract: An LED optical assembly is provided having a support surface having a plurality of light emitting diodes, a plurality of reflectors, and a plurality of optical lenses. Each reflector is positioned over a corresponding light emitting diode and at least one optical lens is placed over a corresponding reflector.Type: GrantFiled: January 30, 2009Date of Patent: April 17, 2012Assignee: Koninklijke Philips Electronics N.V.Inventors: Gary Eugene Schaefer, Hristea Mihalcea
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Publication number: 20120086885Abstract: An object of the present invention is to suppress deformation of a reflection member. A backlight unit 12 according to the present invention includes a light source board 18, a chassis 14, and a reflection sheet 21. The light source board 18 includes an LED 17 as a light source. The chassis 14 stores the light source board 18 therein and has an opening 14b through which light from the LED 17 exits. The reflection sheet 21 that is a reflection member configured to reflect light and arranged on the opening 14b side so as to overlap the light source board 18 in a plan view. The reflection sheet 21 is larger than the light source board 18. The chassis 14 has a first supporting portion 28 and a second supporting portion 29. The first supporting portion 28 supports the light source board 18. The second supporting portion 29 is arranged closer to the opening 14b than the first supporting portion 28, and supports a first reflection sheet 22 included in the reflection sheet 21.Type: ApplicationFiled: April 6, 2010Publication date: April 12, 2012Applicant: SHARP KABUSHIKI KAISHAInventor: Masashi Yokota
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Publication number: 20120086884Abstract: The present invention provides an art of properly fixing a light source board without using any screw. A backlight unit 12 according to the present invention includes an LED board 18 with an LED 17 as a light source, a chassis 14, an optical member 15, and a supporting member 20. The chassis 14 stores the LED board 18 therein and has an opening 14b through which light from the LED 17 exits. The optical member 15 is arranged so as to face the LED board 18 and to cover the opening 14b. The supporting member 20 supports the optical member 15 from the side of the LED board 18. The supporting member 20 is fixed to the chassis 14 such that the LED board 18 is sandwiched between the supporting member 20 and the chassis 14.Type: ApplicationFiled: April 6, 2010Publication date: April 12, 2012Applicant: SHARP KABUSHIKI KAISHAInventor: Takahiro Yoshikawa
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Patent number: 8152332Abstract: A cyclorama light includes a generally enclosed housing forming an interior compartment having a normally horizontal housing axis and an open front defining a window generally arranged within a plane parallel to said axis. A reflector substantially covers the window and has an operative portion that has a substantially uniform cross-section along the housing axis. An LED light emitter array extends along a line substantially parallel to the housing axis, the reflector having a surface configuration and the LED array being arranged in relation to the reflector surface to provide a higher flux density directed toward a far end of a wall or surface to be illuminated and provide a lower flux density directed toward a direction of the near end of the surface to be illuminated, generating a transition flux density between the far and near ends of the surface to be illuminated. The LED array and/or the reflector have optical features for eliminating shadows in the projected light over the entire illuminated surface.Type: GrantFiled: November 7, 2008Date of Patent: April 10, 2012Assignee: Altman Stage Lighting Co., IncInventor: John T. Ryan
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Publication number: 20120075551Abstract: An object of the present invention is to reduce its tendency to generate local deformation in an extending member of a backlight unit. A backlight unit 12 according to the present invention includes LEDs 17 as light sources, a chassis 14 storing the LEDs 17, a reflection sheet 21 and an LED substrate 18 that are extending members along an inner surface of the chassis 14, a holding member 20 fixed to the chassis 14 and holding the reflection sheet 21 and the LED substrate 18 with the chassis 14 such that the reflection sheet 21 and the LED substrate 18 are sandwiched between the holding member 20 and the chassis 14, and a restricting part 26 restricting positional relationship of the holding member 20 with respect to the reflection sheet 21 and the LED substrate 18 such that a gap C is provided between the holding member 20 and the reflection sheet 21.Type: ApplicationFiled: April 6, 2010Publication date: March 29, 2012Applicant: SHARP KABUSHIKI KAISHAInventor: Yasumori Kuromizu
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Patent number: 8142052Abstract: A medical light solidifying device includes a housing box, a rotary work table, a lighting source reflection body, and an LED lighting source set. The rotary work table is rotatably located in the housing box for being placed with a target material. The lighting source reflection body includes at least two reflection masks. Each mask has a reflection wall surrounding the rotary work table. Each of the reflection walls of the two reflection masks respectively has at least one reflection surface. The LED lighting source set is located above the rotary work table and the lighting source reflection body, and includes a plurality of LED units for emitting a beam with a specific wavelength for solidifying the target material. Thereby, the dead zone of the LED lighting source set is reduced so that the usage efficiency thereof is increase, and furthermore the target material can be efficiently and uniformly solidified.Type: GrantFiled: April 7, 2009Date of Patent: March 27, 2012Assignee: Rolence Enterprise Inc.Inventors: Shan-Non Wang, Shih-Chi Ou, Chia-Ming Chang
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Patent number: 8136973Abstract: A lighting apparatus is disclosed. The lighting apparatus includes a light source, a first reflective unit reflecting light, a second reflective unit that is positioned opposite the first reflective unit and reflects the light, and a light pipe positioned outside the first reflective unit. The light source is positioned inside the first reflective unit. The light pipe receives the light reflected by the first reflective unit or the second reflective unit to emit the light.Type: GrantFiled: April 4, 2008Date of Patent: March 20, 2012Assignee: LG Electronics Inc.Inventor: Junghoon Lee
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Publication number: 20120055056Abstract: A lighting device configured for projecting a unique lighting to illuminate letters, figures and shapes displayed on the top of the device is disclosed. The letter and figures are interchangeable and maybe customized to individual tastes and interests. The lighting device comprises a chamber containing a light source and a plurality of reflector strips disposed in the inner portion of the chamber. The letters and figures are inserted into a longitudinal aperture at the top of the chamber and snapped onto a lip that protrudes from an aperture wall. An inclined reflector strip comprising of a plurality of flat portions and angled portions directs the light toward the bottom and sides of the letters and figures that permeates through the substantially transparent material the letters and figures comprise to produce the unique lighting effect. Alternatively, angled reflector tabs are used in lieu of the inclined reflector strip.Type: ApplicationFiled: September 6, 2010Publication date: March 8, 2012Inventor: Michael Roger Olson
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Publication number: 20120056807Abstract: A dual light-source position detecting system for use in touch screens is provided that utilizes parallax to determine the position of an interposing object, and a prismatic film that is brightly retroreflective over a broad entrance angle to enhance to accuracy of the parallax determination of position. The position detecting system includes at least one camera positioned to receive light radiation traversing a detection area and that generates a signal representative of an image; two spaced-apart sources of light radiation, which may be LEDs, or IR emitters positioned adjacent to the camera for outputting light radiation that overlaps over at least a portion of a detection area, and a prismatic film positioned along a periphery of at least a portion of the detection area that retroreflects the light radiation from the two sources to the camera.Type: ApplicationFiled: December 10, 2010Publication date: March 8, 2012Applicants: NEXT HOLDINGS LTD., AVERY DENNISON CORPORATIONInventors: Steven CHAPMAN, Simon BRIDGER
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Publication number: 20120051062Abstract: A lighting apparatus has a reflector of a specially designed shape and a plurality of light sources such as LEDs disposed inside the reflector whereby a portion of light emitted by said light sources is received by the reflector surface and directed so as to provide a uniform and wide illumination pattern over the illuminated surface in indoors or outdoors applications such as roadway illumination.Type: ApplicationFiled: August 25, 2011Publication date: March 1, 2012Inventors: Alexei Miridonov, Alejandro De Santos, Rafael De Santos, Kuotaro Sanay
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Patent number: 8123383Abstract: An apparatus and method for high intensity lighting includes, in one aspect, a reflector frame having a main portion generally following a surface of revolution of the type that produces a converging beam and a second portion following a surface of revolution of the type that produces a different shape beam. Placement of the second portion in the reflector frame allows shifting of parts of the light beam in desired directions.Type: GrantFiled: October 11, 2010Date of Patent: February 28, 2012Assignee: Musco CorporationInventors: Myron Gordin, Timothy J. Boyle
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Publication number: 20120044694Abstract: 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: ApplicationFiled: March 3, 2010Publication date: February 23, 2012Inventor: Urbain du Plessis
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Patent number: 8118462Abstract: An automotive lamp includes an LED as a light source, a heatsink for radiating heat produced by the LED, the heatsink including a plurality of plate fins installed upright on base parts and a plurality of ventilation passages formed between the plate fins, a centrifugal fan for performing the forced air cooling of the plate fins by sending air through the ventilation passages of the heatsink, the centrifugal fan having air inlets in an axial direction for drawing air in, a left-side air outlet and a right-side air outlet for discharging air in left-right directions perpendicular to the axial direction, and a lamp housing for housing the LED, heatsink and centrifugal fan. The plate fins of the heatsink are formed such that the entrance of at least one of a plurality of ventilation passages faces the left-side air outlet and the right-side outlet of the centrifugal fan.Type: GrantFiled: June 23, 2009Date of Patent: February 21, 2012Assignee: Koito Manufacturing Co., Ltd.Inventors: Takashi Inoue, Yuji Yasuda
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Publication number: 20120039076Abstract: An energy-saving lighting device includes a lampshade body, a light-transmissive plate located on the bottom side of the lampshade body, a parabolic reflector and a nonlinear reflector having a light distribution curve mounted in the lampshade body, a light emitting device mounted in the lampshade body, and a cone reflector disposed in the lampshade body right below the light emitting device. When the light emitting device is electrically connected to emit light, light rays are evenly distributed in the illumination area without causing Gaussian distribution, thereby saving the energy and avoiding dazzling.Type: ApplicationFiled: October 15, 2011Publication date: February 16, 2012Inventor: Ping-Han CHUANG
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Patent number: 8104923Abstract: The light-emitting apparatus (1) of the present invention includes: a storage case (12) that includes a base board (10) having a concave portion (10a) and a lid portion (11) covering the concave portion (10a); and a plurality of light-emitting elements (13) that are disposed on an inner surface (12a) of the storage case (12), an opening (11a) is formed in the lid portion (11), at least a part of the inner surface (12a) is a light-reflecting surface that wave-guides light emitted by the light-emitting elements (13) as light sources to a position directly underneath the opening (11), and a reflecting portion (15) that reflects the light emitted by the light-emitting elements (13) as the light sources toward the opening (11a) is formed directly underneath the opening (11a). Thereby, the light-emitting apparatus having a point light source with high brightness can be provided.Type: GrantFiled: October 11, 2007Date of Patent: January 31, 2012Assignee: Panasonic CorporationInventor: Hideo Nagai
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Patent number: 8100563Abstract: The present invention relates to a reflector assembly for a luminaire where the reflector assembly comprises an anti-static member disposed between a lamp of the luminaire and a reflector body. In various aspects the anti-static member may be glass, plastic or other transparent or translucent materials and the reflector may be substantially sealed from the atmosphere by the anti-static member or the anti-static member in cooperation with a cover of the reflector assembly.Type: GrantFiled: January 16, 2007Date of Patent: January 24, 2012Assignee: ABL IP Holding LLCInventors: Yaser S. Abdelsamed, Jack L. Ries
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Patent number: 8096690Abstract: A light source or signaling module for the emission of an illuminating or signaling beam along a main direction, of the type including a light source, a luminous flux recovery mirror made up of a set of reflecting tiles, each reflecting tile being formed of a conical segment with two focal points, the first of which is located on the light source and a second focal point which is located, with respect to the reflecting tile, in a direction parallel to the main direction, each reflecting tile forming an image of the light source. The parameters of the conical segments with two focal points made up of the reflecting tiles are adjusted to confer upon the second focal points pre-determined photometric characteristics, and the images from the light source are directly visible.Type: GrantFiled: January 15, 2008Date of Patent: January 17, 2012Assignee: Valeo VisionInventors: Whilk Goncalves, Otavio-Henrique Reis
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Patent number: 8092037Abstract: A retrofit kit is configured for a single or multiple tubular fluorescent lamp fixture. The original fixture being retrofitted may or may not have any reflectors. The kit includes a new improved reflector with double concave wings. The winged reflector preferably has a central arched, preferably trapezoidal portion which forms the lower cover of the fixture box. This central trapezoidal portion includes an access door to permit access to the ballast without the need to remove the winged reflector once it is installed. An arched, preferably trapezoidal socket bar is installed at each end of the fixture, to lower the position of the lamp with respect to the winged reflector surfaces, to enhance the light distribution in a downward direction while permitting enhanced up-lighting. The distal ends of the trapezoidal central portion of the reflector mate with the trapezoidal socket bars at opposite ends of the fixture.Type: GrantFiled: July 24, 2009Date of Patent: January 10, 2012Assignee: Philips Electronics North America CorporationInventors: Charles E. Kassay, Suzanne M. Pane, Marc A. Kassay, John P. Kassay