Refractor Patents (Class 362/308)
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Patent number: 7540635Abstract: Disclosed herein is a Light Emitting Diode (LED) light source lens for emitting light in a lateral direction. The LED source lens includes an upper part, an upper part and a central part. The upper part includes an upper part reflecting surface bent symmetrically with respect to the central axis of the lens, and an upper part refracting surface extended from the end of the upper part reflecting surface parallel with the central axis. The central part includes a side surface extended from the lower end of the upper part refracting surface and bend inwards, and refracts or reflects light through the side surface. The lower part accommodates the LED light source, and includes an arch-shaped lower part refracting surface extended outwards from the lower end of the side surface of the central part. The light radiated from the LED light source is emitted perpendicular to the central axis.Type: GrantFiled: August 8, 2006Date of Patent: June 2, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Jin Jong Kim, Bum Jin Kim, Ho Seop Jeong
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Publication number: 20090129109Abstract: A headlight reflector (1) comprising: a reflecting wall (10) defining an optical axis (O); a first opening (12) for inserting and positioning a light source (2); a second opening (18) through which the light that has been reflected by the reflecting wall leaves the reflector; and a light mask (14, 15, 16) that blocks the path of a fraction of the light that would otherwise leave via the second opening, the reflector being characterized in that it is made integrally with the light mask.Type: ApplicationFiled: April 28, 2006Publication date: May 21, 2009Applicant: Holophane SAInventor: Daniel Goraguer
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Patent number: 7530710Abstract: A color-tunable illumination system for imaging illumination having a tuning means and at least two light sources of different colors. The illumination system comprises a reflector having a reflector contour, the light sources being accommodated in the vicinity of the reflector contour, and a compact diffusing medium accommodated at the focal point of the reflector. The light from the light sources is directed substantially onto the diffusing medium and then, from there, is diffused onto the reflector contour, electronic driving of the light sources making it possible to regulate the intensity of the light sources separately from one another, with the result that the light leaving the reflector can be color-tuned.Type: GrantFiled: May 22, 2007Date of Patent: May 12, 2009Assignee: Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbHInventors: Dirk Berben, Tim Fiedler, Frank Jermann
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Publication number: 20090109687Abstract: Improved lighting devices and methods are provided. In many embodiments, the devices and methods provide the capability to change a spot of light projected onto a target surface. In other embodiments, the devices and methods are fixed-focus. In one embodiment a lens can have a lens body with anterior and posterior surfaces. The anterior surface can be adapted to receive light from a light source. The posterior surface can have a central portion and a peripheral portion. Some of the light from the light source can pass through the lens body and exit the central portion of the posterior surface via refraction. Some of the light from the light source can pass through the lens body and exit the peripheral portion of the posterior surface via both refraction and reflection at various surfaces of the lens.Type: ApplicationFiled: October 27, 2008Publication date: April 30, 2009Applicant: FRAEN CORPORATIONInventors: John R. Householder, Lawrence H. Boxler
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Publication number: 20090091936Abstract: An improved focal point projection light signal device having a single point light source, a Fresnel lens, and a reflective beam concentrator having a spherical reflective surface located to the rear of the light source. The single point light source is positioned at the focal point of the Fresnel lens such that light emitted toward the Fresnel lens is refracted into a concentrated beam pattern that is projected from the front of the lens. The reflective surface of the beam concentrator is spherically concave and is positioned such that light emitted to the rear of the light bulb is reflected back through the lens focal point and out through the Fresnel lens. The overall diameter of the reflective beam concentrator is significantly smaller than the diameter of the Fresnel lens such that reflection of extraneous light sources that may produce phantom signal indications is minimized.Type: ApplicationFiled: October 6, 2008Publication date: April 9, 2009Inventor: George H. Koester
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Patent number: 7513665Abstract: A headlamp module for a motor vehicle. The module includes a light source and a translucent member for internally reflecting the light rays so as to be directed. In one aspect of the invention, the light source is discretely positioned adjacent to a periphery defined by the exit surface so as to be directly hidden from view from the front of the vehicle. In another aspect, an outer surface of the light source is directly supported by the translucent member so that light rays emitted through an outer surface of the light source directly enter the translucent member.Type: GrantFiled: May 16, 2006Date of Patent: April 7, 2009Assignee: Visteon Global Technologies, Inc.Inventors: Jeyachandrabose Chinniah, Edwin M. Sayers, Christopher L. Eichelberger
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Publication number: 20090086478Abstract: A lighting system with removable light modules mounted on a frame by an attractive force between magnetic material of the light module and magnetic material of the frame such that a light module may be installed on, removed from, or relocated on the frame manually without tools or permanent electrical connection. The frame may be one-, two-, or three-dimensional, and it may provide an aesthetic appearance even when the lighting system is not illuminated. The light modules may employ incandescent, quartz-halogen, LED, or fluorescent light sources. Particularly, in LED embodiments, the magnetic materials serve the dual functions of mounting and heat sinking. The lighting system may be utilized as a sign, signaling device, or a building block in larger lighting systems. The lighting system has a wide variety of applications and provides a user with improved ability to control the quantity, direction, and characteristics of the emitted light.Type: ApplicationFiled: September 28, 2007Publication date: April 2, 2009Applicant: OSRAM SYLVANIA INCInventors: John P. Sanroma, John D. Mitchell, JR.
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Patent number: 7499099Abstract: In an illumination apparatus, an optical element has an exit surface in which an inclination to a perpendicular to an irradiation optical axis in a first area is greater than that of a second area, and the inclination of the first area gradually increases in order from the irradiation optical axis, an intermediate part and a periphery of the exit surface. The first and second areas are defined as those divided by an interface surface that includes an irradiation optical axis and is orthogonal to a plane that is orthogonal to a longitudinal direction of the light source. A first reflective surface reflects first light to the intermediate part in the first area. A second reflective surface reflects second light to the periphery in the second area.Type: GrantFiled: June 8, 2005Date of Patent: March 3, 2009Assignee: Canon Kabushiki KaishaInventor: Nobuhisa Kojima
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Publication number: 20090040768Abstract: An exemplary backlight module includes a light guide plate and light sources. The light guide plate includes a block body and the recessed parts. The block body has a top light output surface and a bottom surface. The recessed parts are provided at the bottom surface. The light sources are disposed at least partly in or adjacent to the recessed parts.Type: ApplicationFiled: June 9, 2008Publication date: February 12, 2009Applicants: TSINGHUA UNIVERSITY, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: JUN ZHU, HE ZHANG, GUO-FAN JIN
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Publication number: 20090027892Abstract: The invention relates to and discloses a light fixture (10) for illuminating a building surface (15), comprising a dished housing (11) having a light-output opening (24), a light source (12) being provided on the interior (31) of the housing, indirect light (30a, 30b, 30c) starting from the light source passing through a light-output opening only after being reflected on reflector surfaces (21, 22) and direct light (29a, 29b, 29c) starting from the light source passing through without reflection on reflector surfaces, a spread lens (23) being provided that is at the light-output opening and that ensures that the light is spread in order to illuminate the building surface more uniformly, the reflector surfaces each comprising a wall region (22) having a parabolic cross-section and a wall region (21) having an elliptical cross-section.Type: ApplicationFiled: October 12, 2007Publication date: January 29, 2009Inventors: Matthias Bremerich, Leonhard Klose
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Publication number: 20090016066Abstract: A package structure for a high-luminance light source comprises a circuit board, at least one light source and a resin coating covering the light source. A light refractive layer is formed on a surface of the circuit board and is located correspondingly to the light source, and the light refractive layer is provided for refracting the ineffective light of the light source, so as to turn the ineffective light into effective light, so that the light emitted at different angles from the light source are fully utilized to improve the luminescent efficiency of the light source.Type: ApplicationFiled: July 12, 2007Publication date: January 15, 2009Inventor: Pi Hsiang CHEN
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Patent number: 7474474Abstract: There is provided a lighting module of the type having a solid-state light source, in particular a LED, a supporting plate, and a lens; the lens has a recess housing the light source; the lens is supported by and projects from the plate by means of supporting members carried by the lens and for fitting the lens directly to the plate; and the supporting members are formed in one piece with the lens, and are spaced apart and separated from one another by cooling windows.Type: GrantFiled: February 8, 2008Date of Patent: January 6, 2009Assignee: Fraen Corporation S.R.L.Inventors: Marco Angelini, Claudia Bigliati, Natale Baraldo, Luca Scodes
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Patent number: 7473019Abstract: A lighting apparatus, particularly for the use as lighting elements in signage or as backlighting apparatus, which comprises a cavity formed by a light emitting front side, a reflective backside arranged opposite to the front side and a sidewall, and a plurality of light emitting semiconductor components mounted on the sidewall in such a way that their light is irradiated in the cavity. The reflective backside of the cavity is formed in such a way that the cavity is divided into at least two partitions directing the light to the front side.Type: GrantFiled: September 29, 2005Date of Patent: January 6, 2009Assignee: Osram Opto Semiconductors GmbHInventor: Joseph John Laski
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Patent number: 7470045Abstract: A device for shielding outside lights comprising an essentially cylindrical, transparent shield body with a surface which is provided with a zigzag-shaped profile in a vertical direction in order to deflect the radiation from a lighting source incident on the shield body in a desired direction. Triangular projections of the zigzag-shaped profile in a first portion are designed and configured in such a way that the radiation from the lighting source is fully reflected in a desired direction when passing through the first portion of the shield body and triangular projections of the zigzag-shaped profile in a second portion are designed and configured in such a way that the radiation from the lighting source is diffracted in the desired direction when passing through the second portion of the shield body.Type: GrantFiled: September 26, 2006Date of Patent: December 30, 2008Assignee: Semperlux AGInventors: Udo Bansbach, Dieter Albert
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Publication number: 20080298072Abstract: An exemplary LED lamp includes a housing having an opening, a printed circuit board, at least one LED, a light reflective element, at least one light-shielding sheet and a lamp cover. The printed circuit board is positioned on a bottom of the housing. The LED is electrically connected with the printed circuit board. The light reflective element defines at least one through hole, the LED passing through the corresponding through hole. The at least one light-shielding sheet corresponds to the at least one LED respectively. Each light-shielding sheet comprises a bottom reflective plate and a pair of opposite sidewalls extending from two opposite ends of the bottom reflective plate. A plurality of light holes is defined at ends of the bottom reflective plate adjacent to the two opposite sidewalls. The lamp cover is fixed on the opening of the housing. The LED lamp assembly has a uniform luminance.Type: ApplicationFiled: September 20, 2007Publication date: December 4, 2008Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventor: SHAO-HAN CHANG
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Publication number: 20080298073Abstract: The invention discloses a lighting system which includes a light source (11), a lens group (12) and an aspherical reflector (13). The light source includes an elliptical reflection cover (111). A light beam emitting from the light source is focused on an entry of the lens group via the elliptical reflection cover. The lens group regulates the light beam to a round patch and then which is projected onto the aspherical reflector. The aspherical reflector changes the round patch to an inverse trapezia patch. Then the inverse trapezia patch can be projected on an object (14) and become a large square patch in a short distance. The utilization efficiency of the light energy is enhanced in the lighting system, and the lighting system includes a small number of components, uses the point light source, and becomes easy to produce, and convenient to repair.Type: ApplicationFiled: October 24, 2007Publication date: December 4, 2008Applicant: OMT Digital Display Technology(ShenZhen) LimitedInventor: Shi Hwa HUANG
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Patent number: 7445366Abstract: A lamp for a vehicle is provided with a projection lens, a light source, a reflector having a reflecting surface, which reflects a light from the light source toward the projection lens; a body of a vessel shape; a cover forming a lamp chamber together with the body; and an auxiliary lens. The auxiliary lens diffuses an incident light in a horizontal direction and is provided at least on one side of the projection lens in the vehicle width direction. A horizontal section of the cover is tilted in with respect to a phantom line that extends in a vehicle width direction, and the auxiliary lens is formed such that a thickness thereof becomes gradually thin in an outward direction from the projection lens, and that an outermost surface thereof in the horizontal section is parallel to the cover.Type: GrantFiled: July 19, 2006Date of Patent: November 4, 2008Assignee: Koito Manufacturing Co., Ltd.Inventors: Michio Tsukamoto, Hiroshi Kawashima
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Publication number: 20080253129Abstract: An improved lamp fixture with anti-glare function is disclosed, which comprises: a lamp; a light source; and a light-control unit, composed of a semi-Fresnel microstructure and a light-control microstructure; wherein the light source and the light-control unit are mounted on the lamp; and the semi-Fresnel microstructure is used for diffusing/collimating light of the light source while the light-control microstructure is used for controlling the resulting lighting angle. With the aforesaid lamp fixture, not only glare can be prevented, but also uniformity of the lamp fixture is improved.Type: ApplicationFiled: July 7, 2007Publication date: October 16, 2008Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Jian-Shian Lin, Chieh-Lung Lai, Jen-Hui Tsai, Tung-Chuan Wu
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Publication number: 20080247172Abstract: This invention is an illumination system that incorporates a light emitting diode and a partially reflecting optical element. The light emitting diode emits internally generated light having a first angular range and reflects incident light with high reflectivity. The partially reflecting optical element transmits a first portion of the internally generated light with a second angular range, smaller than the first angular range, and reflects a second portion of the internally generated light back to the light emitting diode, where the second portion is reflected by the light emitting diode. The partially reflecting optical element can be a pyramid, an array of pyramids, a first and second orthogonal arrays of prisms or a bandpass filter. Utilizing a partially reflecting optical element and light recycling can increase the effective brightness and the output efficiency of the illumination system.Type: ApplicationFiled: December 12, 2007Publication date: October 9, 2008Inventors: Karl W. Beeson, Scott M. Zimmerman
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Publication number: 20080239723Abstract: An LED table lamp including a base, a holder, and a light emitting device is provided. An end of the holder is connected to the base, and the light emitting device includes a lampshade pivotally connected to another end of the holder, a reflecting thin film and an LED light module. The lampshade has at least a side-wall and a top-wall connected the side-wall. The reflecting thin film is disposed on the top-wall and the LED light module is disposed in the side-wall. The light emitted from the LED light module is reflected several times by the reflecting thin film to render the brightness of the light emitted out of the lampshade substantially uniform.Type: ApplicationFiled: July 6, 2007Publication date: October 2, 2008Applicant: AMA PRECISION INC.Inventor: Chia-Te Lin
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Publication number: 20080239751Abstract: An exemplary LED lamp includes a housing having an opening, a printed circuit board, at least one LED, a light reflective plate, a light reflective module and a lamp cover. The printed circuit board is positioned on a bottom of the housing. The LED is electrically connected with the printed circuit board. The light reflective plate defines at least one through hole, the LED passing through the corresponding through hole. The light reflective module includes a bottom reflective plate, at least two opposite reflective sidewalls, at least one light-shielding sheet extending at midsections from the opposing reflective sidewalls. The bottom reflective plate defines at least one first cutout, the at least one LED passing through the corresponding first cutout. The at least one light-shielding sheet defines a plurality of light holes and covers the corresponding LED. The LED lamp assembly has a uniform luminance.Type: ApplicationFiled: July 6, 2007Publication date: October 2, 2008Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventor: SHAO-HAN CHANG
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Publication number: 20080232111Abstract: A low upright cutoff classification acorn style luminaire is described. The acorn style luminaire has a globe which has a top positioned thereon and which is mounted to a pole. Integrated within the luminaire is the lamp support and lamp, the lamp substantially surrounded and enclosed by a reflector. The interior surface of the globe has a plurality of substantially vertically extending prisms along a curved surface thereof, the prisms working in conjunction with the reflector to provide cutoff classification for the acorn style luminaire.Type: ApplicationFiled: February 26, 2008Publication date: September 25, 2008Applicant: Canlyte Inc.Inventor: Jean-Francois Laporte
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Publication number: 20080232110Abstract: An illuminating device includes a main body, at least one light emitting member, a non-spherical light permeable lens, and a retaining ring. Thus, the convex face of the light permeable lens gathers the light emitted from the light emitting member to provide a light gathering effect to the light emitting member, thereby enhancing the lighting effect of the light emitting member. In addition, the reflective face of the main body reflects the light emitted from the light emitting member toward the light permeable lens to enhance the lighting effect of the light emitting member.Type: ApplicationFiled: March 20, 2007Publication date: September 25, 2008Inventor: Ming-Tsai Wang
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Publication number: 20080225528Abstract: An apparatus comprises a light source, preferably an LED, a reflector, a light-conducting element mounted on the light source for directing light from the light source to an end of the light-conducting element, and a lens mounted on the end of the light-conducting element for directing light into a central beam. Light from the light source is directed to the reflector into a peripheral beam. The central and peripheral beams comprise substantially all of the light generated by the light source. The lens is in effect mounted on a pedestal above the LED. The pedestal transmits all the light rays in the central solid angle to the lens without loss.Type: ApplicationFiled: July 12, 2006Publication date: September 18, 2008Applicant: Illumination Mangement Solutions, Inc.Inventors: Ronald G. Holder, Greg Rhoads
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Publication number: 20080219009Abstract: An projector type lamp includes a casing formed with a front open end and configured by connecting an upper casing member and a lower casing member to each other; a concave mirror formed on an inside face of the casing; a light source provided at the first focal point of the concave mirror; a convex lens configured to be held between the upper casing member and the lower casing member at the front open end of the casing and adapted to refract a reflected light that is emitted from the light source and reflected on the concave mirror so as to project a substantially parallel pencil beam forward from the project type lamp; provisional fixers provided on the upper casing member and the lower casing member respectively and configured to latch one another so as to provisionally fix the casing members to one another in place; and a fastener configured to fasten the provisionally-fixed casing members together.Type: ApplicationFiled: March 6, 2008Publication date: September 11, 2008Inventor: Takayuki KAWAMURA
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Patent number: 7416315Abstract: A faceted reflector includes a plurality of individual reflectors embedded in a carrier, one main area of the carrier being a light entry side, and another main area being a light exit side. The individual reflectors may be cavities in the carrier, which, preferably, have a prismatic form. The radiation to be reflected is subjected to total reflection at a part of the cavity interfaces.Type: GrantFiled: November 4, 2002Date of Patent: August 26, 2008Assignee: Osram OPTO Semiconductors GmbHInventor: Simon Blümel
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Publication number: 20080192479Abstract: A laterally emitting radiation-generating component comprising a radiation source, the optical axis of which runs perpendicular to a mounting area of the component, and comprising an optical device arranged downstream of the radiation source. The optical device includes a reflective surface shaped like a V in cross section and a refractive surface that is shaped convexly as seen externally and is arranged between the reflective surface and a bottom area facing the radiation source. The bottom area is arranged and formed in such a way that through it electromagnetic radiation from the radiation source couples into the optical device. The reflective surface is arranged and formed in such a way that a central first portion of the coupled-in radiation is deflected toward the refractive surface by the reflective surface.Type: ApplicationFiled: July 22, 2005Publication date: August 14, 2008Inventor: Mario Wanninger
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Publication number: 20080186714Abstract: A light-emitting diode including a substrate provided with a pair of electrodes, a light-emitting element mounted on the substrate and electrically connected to the pair of electrodes, and a junction being in the light-emitting element, the substrate including a mirror surface on at least a position where the light-emitting element is mounted, the light-emitting element including an upper surface which acts as an emission surface, side surface and a lower surface, the lower surface of the light-emitting element being adhered to the mirror surface of the substrate by a light-transmitting adhesive, the side surfaces of the light-emitting element being covered by a resin having a diffusion-reflection effect, the emission surface of the light-emitting element, the junction and the mirror surface of the substrate being disposed in parallel with each other.Type: ApplicationFiled: January 30, 2008Publication date: August 7, 2008Applicant: Citizen Electronics Co., Ltd.Inventor: Makoto NAGAYAMA
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Publication number: 20080158475Abstract: A light-emitting package allowing light to enter a thin lightguide plate efficiently has a package substrate 11, light-emitting elements 2 mounted on the package substrate, a transparent resin part 12 sealing the light-emitting elements on the package substrate, a cut portion 12a formed in the transparent resin part in parallel to the package substrate so as to be able to receive a side edge surface of a lightguide plate, and a reflecting layer 13 formed on the entire surface of the transparent resin part except the cut portion.Type: ApplicationFiled: December 5, 2007Publication date: July 3, 2008Applicant: Citizen Electronics Co., Ltd.Inventors: Junji Miyashita, Takumi Miyashita
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Publication number: 20080158881Abstract: The present invention discloses a coupling lens system, which comprises a collimation lens for collimating light from light source to a first direction; a first lens surface for total internal reflecting light from light source to the first direction; and a second lens surface for total internal reflecting light from the first direction to a second direction. Wherein an angle between the first direction and the second direction can be larger than, smaller than or equal to 90 degrees, and preferably between 70 to 100 degrees. Additionally, the system further comprises at least one extra surface parallel to the second lens surface, wherein at least one extra surface has a length L and is parallel to each other. At the same time, each surface and another surface has a distance D in between, and the length L can be equaled to or larger than the distance D according to purposes and further modifies a shape of the coupling lens system.Type: ApplicationFiled: December 19, 2007Publication date: July 3, 2008Applicant: Hong Kong Applied Science and Technology Research Institute Co., Ltd.Inventors: Ying LIU, Chen-Jung Tsai
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Publication number: 20080151551Abstract: A lens cap and an LED package structure using the same are provided. The lens cap includes a cap body made of a transparent material for being covered on a point light source. The cap body includes a first incident surface, which is a curved surface raised on a inner side of the cap body and refracts light emitted by the point light source into the cap body. A reflective surface is formed the outer side of the cap body and is opposite to the first incident surface, wherein the reflective surface reflects the light refracted by the first incident surface. A light-transmitting surface is formed on the outer side of the cap body, and the light reflected by the reflective surface is projected onto the light-transmitting surface to exit the cap body. Thus, the light is emitted towards the lateral of the lens cap along a horizontal direction.Type: ApplicationFiled: June 8, 2007Publication date: June 26, 2008Inventors: Cheng-Lin Yang, Shuang-Chao Chung
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Patent number: 7390117Abstract: The present application discloses a light source comprising an LED die having an emitting surface and an optical element including a base, an apex, the base, and a converging side joining the base and the apex, wherein the base is optically coupled to the emitting surface. Furthermore, the optical element comprises a first section including the base and that is composed of a first material and a second section including the apex and that is composed of a second material.Type: GrantFiled: May 2, 2006Date of Patent: June 24, 2008Assignee: 3M Innovative Properties CompanyInventors: Catherine A. Leatherdale, Andrew J. Ouderkirk, Dong Lu
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Patent number: 7387409Abstract: A light fixture for use in low voltage outdoor lighting systems includes a lens assembly with a diffuser lens disposed on top of a lens support, a reflector hood and a mushroom-shaped reflector retaining cap removably mounted on top of the lens assembly. A socket and lamp extend through an opening in the lens support. The radial center of the hood has a flattened area that sits level on top of the cylindrical lens and has an opening through which a base portion of the retaining cap is inserted. A recess in the top of the lens has an opening at its bottom for receiving the base of the retainer cap which is attached with a fastener inserted through the top of the lens. An O-ring seals the lens to the lower surface of the hood and the lens and lens support are sealed to provide a water-resistant seal around the lamp. The lens support is attached to the top of a mounting post.Type: GrantFiled: March 1, 2006Date of Patent: June 17, 2008Inventor: Joshua Z. Beadle
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Publication number: 20080130291Abstract: A built-in lamp includes a housing and a holder for fastening in a built-in surface, such as a room ceiling. The built-in lamp also includes a light source socket for holding a light source and a light source region and a direct light reflector. The direct light reflector has a direct light reflector opening which is disposed in the direction of illumination which defines a direct light exit region and which is surrounded at least reasonably by a diffused light exit region. The direct light reflector has a rear opening. The head reflector is disposed on the side of the light source region remote from the direct light exit region.Type: ApplicationFiled: January 23, 2006Publication date: June 5, 2008Inventor: Hartmut S. Engel
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Patent number: 7370993Abstract: This invention is an illumination system that incorporates a light emitting diode and a partially reflecting optical element. The light emitting diode emits internally generated light having a first angular range and reflects incident light with high reflectivity. The partially reflecting optical element transmits a first portion of the internally generated light with a second angular range, smaller than the first angular range, and reflects a second portion of the internally generated light back to the light emitting diode, where the second portion is reflected by the light emitting diode. The partially reflecting optical element can be a pyramid, an array of pyramids, a first and second orthogonal arrays of prisms or a bandpass filter. Utilizing a partially reflecting optical element and light recycling can increase the effective brightness and the output efficiency of the illumination system.Type: GrantFiled: September 28, 2004Date of Patent: May 13, 2008Assignee: Goldeneye, Inc.Inventors: Karl W. Beeson, Scott M. Zimmerman
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Publication number: 20080106903Abstract: A light guide may be made from a plurality of substantially planar, light transmissive arms paralleling and radiating from a common axis. The planar arms in combination define a common cavity extending along the axis sufficiently large to envelope a light source. At least one arm has an input window facing the common cavity, a reflective wall aligned with respect to the common cavity and an input window. Light received from the direction of the common cavity through the input window is generally reflected in an axial direction. The light guide has an output window extending from an intersection point with the reflective wall towards the axis. The plurality of arms is preferably supported on a base.Type: ApplicationFiled: August 8, 2005Publication date: May 8, 2008Inventor: Robert Lee King
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Patent number: 7367693Abstract: A vehicular lamp that decreases the amount of light blocked by the extension towards the inside of the vehicle and increases the diffused light radiated toward the outside of the vehicle. The vehicular lamp 100 has a projection lens 33, a light source 27, a reflector 29 having a reflecting surface 29a in which the light source 27 acts as an approximate focal point and light from this light source 27 is reflected toward the projection lens 33, a container-shaped body 21, and a cover 23 that along with the body 21 forms a light chamber. The cover 23 has a horizontal cross-section that is slanted with respect to an imaginary line 25 in the transverse direction of the vehicle, and the projection lens 33 has a rear side focal point f, the thickness of the lens 33 decreasing from the center portion toward the outer peripheral portions, and on the outer peripheral portions, a vehicular inside edge portion projects more toward the front side of the vehicle than the vehicular outside edge portion.Type: GrantFiled: August 29, 2006Date of Patent: May 6, 2008Assignee: Koito Manufacturing Co., Ltd.Inventors: Michio Tsukamoto, Hiroshi Kawashima
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Publication number: 20080084694Abstract: An optical element comprises a radiation exit face for a light-emitting diode, said optical element being suitable for producing a radiation characteristic that breaks rotational symmetry, and a light-emitting diode comprising such an optical element, and an LED arrangement comprising a plurality of light-emitting diodes arranged on a carrier, wherein each of the light-emitting diodes is associated with its own optical element, which is arranged and configured such that a radiation characteristic of the respective light-emitting diode is formed with broken rotational symmetry, and wherein the optical elements are similarly implemented.Type: ApplicationFiled: September 27, 2007Publication date: April 10, 2008Inventors: Monika Rose, Sven Weber-Rabsilber, Alexander Wilm
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Publication number: 20080074888Abstract: An exemplary light emitting diode includes a light output unit, an optical lens, and a reflective resin member. The optical lens is mounted on the light output unit. The optical lens includes a light input surface facing the light output unit, a top interface distal from the light input surface, and a light output surface generally between the light input surface and the top interface. The reflective resin member is formed on the top interface of the optical lens. Methods for making the light emitting diode are also provided.Type: ApplicationFiled: December 15, 2006Publication date: March 27, 2008Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventor: SHAO-HAN CHANG
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Publication number: 20080025029Abstract: A direct type illuminating device includes a light source unit, a reflector plate, a diffuser plate, and a lens module. The light source unit provides source light beams. The reflector plate and the diffuser plate are spaced at an interval from each other, and the light source unit is interposed between the reflector plate and the diffuser plate. The lens module surrounds the light source unit such that the lens module is interposed between the light source unit and the reflector and diffuser plates. An outer curved surface of the lens module has a radius of curvature different from a radius of curvature of an outer curved surface of the light source unit such that the source light beams provided by the light source unit are refracted by the lens module to result in change of traveling directions of the source light beams.Type: ApplicationFiled: June 28, 2007Publication date: January 31, 2008Inventors: Teng-Chao Hou, Tzeng-Ke Shiau, Wen-Bin Chou, Ching-Shiang Li
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Patent number: 7320531Abstract: A backlight uses an array of red, green, and blue LEDs in a mixing chamber. The mixing chamber has reflecting surfaces and a top opening for illuminating LCD layers. A desired brightness profile and better color uniformity are obtained by using techniques including arranging the LEDs in certain sequences and patterns, providing a specular ring at the base of each LED, attenuating the brightness of the LEDs at the edges, and using widely separated diffusers in the mixing chamber. The arrangement, selection, and control of the multicolored LEDs may be tailored to achieve any desired white point specified by the display manufacturer.Type: GrantFiled: May 7, 2004Date of Patent: January 22, 2008Assignee: Philips Lumileds Lighting Company, LLCInventors: Robert S. West, Simon Kuppens, Charles Schrama, Yourii Martynov, Nicola Pfeffer, Huub Konijn
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Patent number: 7306351Abstract: A light emitting device includes an LED package bases, an LED chip disposed on the LED package base, and a lens disposed on the LED package base. The lens includes a frustum shape having an inclined outer peripheral surface, and having a relatively smaller lower portion for attaching onto the LED package base, and having a relatively greater upper portion spaced away from the LED package base, the lens includes a longitudinal axis arranged to have an included angle ? formed between the longitudinal axis and the inclined outer peripheral surface of the lens, for reflecting light sidewise. The lens may include a curved recess formed in the upper portion for such as light diffusing purposes.Type: GrantFiled: December 14, 2005Date of Patent: December 11, 2007Assignee: Chung Yuan Christian UniversityInventors: Chang Po Chao, Lun De Liao, Cho Wei Chiu
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Publication number: 20070274096Abstract: A lighting apparatus is described. One embodiment of the lighting apparatus includes a substrate and a lighting element. The lighting element is coupled to the substrate to emit light through a light exit plane. The light exit plane is substantially perpendicular to the substrate. By providing a lighting device with a substrate oriented perpendicular to the light exit plane of the lighting device, the lighting device can enable better mixing of the light from different LEDs. The lighting apparatus facilitates light mixing, generally, to minimize or eliminate dark spots on the diffusion panel. The lighting device also facilitates color mixing to produce relatively consistent white light on the diffusion panel.Type: ApplicationFiled: May 26, 2006Publication date: November 29, 2007Inventors: Tong Fatt Chew, Siew It Pang, Sundar Natarajan Yoganandan, Kee Yean Ng
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Patent number: 7295104Abstract: A lighting apparatus for vehicles having two primary headlights for visible low beam and high beam illumination, and auxiliary headlights that are mounted on the vehicle separate from the primary headlights. The auxiliary headlights generate infrared light and position light. An electrical control unit automatically turns the position light of the primary headlights off or on when the auxiliary headlight is turned on or off.Type: GrantFiled: May 5, 2005Date of Patent: November 13, 2007Assignee: Hella KGAA Hueck & Co.Inventors: Tobias Irmscher, Martin Kempkensteffen, Franz-Josef Kalze
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Patent number: 7284883Abstract: A lighting system and device for providing indirect light using free-cavity, double-diffusing configurations are disclosed. In accordance with the embodiments of the invention, a lighting fixture comprises a cover structure with a diffusion layer and a reflective plate that form the free-cavity. The free-cavity is preferably configured to provide an output of light from a light source positioned within the free-cavity with an efficiency rating of 70% or more and provide better than an 8:1 ceiling lighting contrast between the rows of fixtures with rows on 16 feet spacing. Further, in accordance with a preferred embodiment of the invention, a device is configured to couple to a ceiling structure and provide the indirect lighting from a fluorescent light source.Type: GrantFiled: March 17, 2006Date of Patent: October 23, 2007Assignee: FineliteInventors: Walter Blue Clark, David Daoud Aziz
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Patent number: 7275844Abstract: A bicycle headlamp including: a rotor having a plurality of magnet plates attached to spokes of a bicycle wheel, each magnet plate including a plurality of magnets disposed at regular circumferential spacings with alternating south and north poles; and a stator including a power-generating coil disposed in a fixed position to face the magnetic pole faces of the magnet plates. A case includes at least a headlamp electrical circuit for establishing resonance with a certain relative speed of the magnets by means of the power-generating coil and a capacitor connected in series, and for rectifying, smoothing out, and outputting electric power obtained from the power-generating coil. Also included are a light-emitting diode and a condenser lens for focusing light emitted from the light emitting diode in front of the bicycle and for illuminating the roadway.Type: GrantFiled: June 11, 2003Date of Patent: October 2, 2007Assignee: Akidenki KabushikigaisyaInventor: Masashi Watanabe
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Patent number: 7261449Abstract: A lighting module able to give a light beam with cut-off line for a motor vehicle headlight, comprising a light source, a reflector, a dioptre serving as an exit lens or an exit lens, and a reflective folder. The light source is combined with a collimator in order to give a beam that can be assimilated to a parallel beam, substantially orthogonal to an exit plane of the collimator. The reflector and the dioptre or lens may be combined in a single piece made from transparent material, and the surface of the reflector and that of the folder means work in total reflection according to an air/transparent material interface.Type: GrantFiled: April 20, 2006Date of Patent: August 28, 2007Assignee: Valeo VisionInventor: Pierre Albou
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Patent number: 7255462Abstract: At least one light distribution device is provided in the spacing between adjacent light sources to allow light diffused from both sides of the light sources to be properly refracted and reflect so as to more evenly diffuse light toward a diffuser plate and thereby, eliminate the dark bands between adjacent light sources for effectively solving the bright bands and dark bands problem observed in prior art LCD modules.Type: GrantFiled: March 4, 2004Date of Patent: August 14, 2007Assignee: K-Bridge Electronics Co., Ltd.Inventor: Wen-Pao Tseng
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Publication number: 20070159839Abstract: A vehicular headlamp 1 including a projection lens 16 installed on the optical axis Ax extending in the longitudinal direction of the vehicle a light source 12a provided behind the rear side focal point F of the projection lens 16, and a reflector 14 that reflects direct light from the light source 12a forward and toward the optical axis Ax; and in this headlamp, an additional lens 30, which deflects and directs light from the light source 12a to the front is provided around the outer perimeter of the projection lens 16, and grooves 33, which have side faces that direct at least a part of the incident light toward the side of the vehicle, are formed in the outer surface of the additional lens 30.Type: ApplicationFiled: December 11, 2006Publication date: July 12, 2007Inventor: Motohiro Komatsu
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Patent number: RE39900Abstract: A light fixture having a base for housing a light producing source and a flat plate disposed within the base. The plate has a well formed in it, the well having light reflecting walls. A lamp socket is located in a light reflecting bottom wall of the well. A plurality of light reflecting elements is attached to the plate and a pair of light reflecting assemblies, one on either side of the well, is fixed to the plate. Each light reflecting assembly includes a plurality of light reflecting fins affixed to the plate and projecting at an angle away from the plate. A frame having a convex lens affixed thereto is hingedly attached to the base. A light shield is fixed to the frame for reducing dispersion of unwanted light.Type: GrantFiled: December 20, 2002Date of Patent: October 30, 2007Inventors: William A. Hein, Henry M. Avila, Peter C. Sara