Refractor Patents (Class 362/308)
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Patent number: 9063257Abstract: A LED illumination lamp extending substantially along and about an axis, and having: a LED light source located substantially along the axis; a light diverting optical element located substantially in front of the light source, along the axis, and designed to laterally divert the light impinging substantially axially on the optical element; and an optical guide plate surrounding the optical element and the axis, and having a seat housing the light source and the optical element; the plate extending along the axis, between two opposite faces respectively defining a front light-exit surface, and a rear active surface having a number of circumferential annular projections spaced radially apart and concentric with the axis.Type: GrantFiled: August 7, 2013Date of Patent: June 23, 2015Assignee: ARTEMIDE S.p.A.Inventors: Damiano Lavizzari, Andrea Gallucci
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Patent number: 9039245Abstract: A light directing composite film includes a planar top major surface, a planar bottom major surface, a plurality of lenticular lens elements disposed between the top major surface and the bottom major surface, and a plurality of light reflection regions and light transmission regions disposed between the plurality of lenticular lens and the planar bottom major surface.Type: GrantFiled: December 28, 2010Date of Patent: May 26, 2015Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Michael A. Meis, David G. Freier, Patrick R. Fleming
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Publication number: 20150138757Abstract: A light-emitting device includes a base and a light source and a diverging unit placed on the base. The diverging unit has a divergent lens and a diverging ring. The divergent lens includes a light incident surface, a light exiting surface, and a side surface. The side surface is connected to the light incident surface and the light exiting surface. The divergent lens defines a receiving space and the receiving space extending into the divergent lens from the light incident surface towards the light exiting surface. The light source is received in the receiving space. The diverging ring is positioned on the light exiting surface and in-line with the light source so that the diverging ring reflects light from the light source transmitted through the divergent lens in multiple directions.Type: ApplicationFiled: October 22, 2014Publication date: May 21, 2015Inventors: FENG-YUEN DAI, CHAU-JIN HU, LI-YING WANG HE
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Patent number: 9028109Abstract: A light flux controlling member includes an emission surface, a first incidence surface that is an inner surface of a concave portion, a second incidence surface that is disposed outside an opening rim portion of the concave portion, and a rear surface. A plurality of annular grooves is formed in the second incidence surface. Each annular groove forms an intersection line with an adjacent annular groove. When a virtual plane that passes through the outer rim portion of the second incidence surface and is orthogonal to the central axis is assumed as a reference plane, the plurality of annular grooves is disposed so that the intersection line become close to the virtual plane with distance from the central axis. The shape of a cross section of the annular groove including the central axis is an arc of which the center of curvature is located outside the light flux controlling member.Type: GrantFiled: October 25, 2013Date of Patent: May 12, 2015Assignee: ENPLAS CorporationInventor: Hiroshi Takatori
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Publication number: 20150124459Abstract: A lens, LED module and an illumination system includes an illuminated area; and at least an LED module for illuminating the illuminated area. The LED module includes an LED, and a lens mounted in the light path of the LED. The lens includes an optical axis, a light source recess arranged through the optical axis, a light emitting surface crossing through the optical axis, and a critical reflection surface arranged between the light source recess and the light emitting surface, wherein the light source recess is a rectangular hole in a section view which is vertical to the optical axis and has a center axis which overlaps with the optical axis, the light source recess has a wedge-shaped hole in a section view along the optical axis, the wedge-shaped hole has a top wall which crosses through the optical axis, the top wall has a convex surface.Type: ApplicationFiled: October 17, 2014Publication date: May 7, 2015Applicants: NINGBO SELF ELECTRONICS CO., LTD., NINGBO HI-TECH PARK SELF ELECTRONICS CO., LTD., SELF ELECTRONICS USA CORPORATIONInventor: Wanjiong Lin
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Publication number: 20150124457Abstract: A light emitting device can further improve light extraction efficiency. A method of manufacturing such a light emitting device can also prove advantageous. The light emitting device includes a light emitting element, a light-transmissive member which is disposed on a light extracting surface side of the light emitting element, and a reflecting layer disposed on an element bonding surface of the light transmissive member where the light emitting element is disposed and adjacent to the light emitting element. The light-transmissive member, in a plan view, has a planar dimension greater than the light extracting surface of the light emitting element.Type: ApplicationFiled: November 6, 2014Publication date: May 7, 2015Inventors: Daisuke SANGA, Masatsugu ICHIKAWA, Shunsuke MINATO, Toru TAKASONE, Masahiko SANO
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Publication number: 20150124449Abstract: An LED light fixture includes a heat sink structure, at least one LED board in thermal engagement with the heat sink structure, the at least one LED board having at least one LED emitter thereon, and an on-board connector on the LED board for connecting electrical wiring to the LED emitter(s). At least one enclosing member forms with the heat sink an interior space enclosing a corresponding LED board, the rigid enclosing member defining a wiring aperture therethrough in alignment with the on-board connector. The LED light fixture also has an exterior wireway structure including a one-piece duct which has an end portion engaged with the wiring aperture and forms a channel for wires to the on-board connector. The wireway structure further includes a single-piece rigid cover secured with respect to the enclosing member and enclosing the duct.Type: ApplicationFiled: November 1, 2013Publication date: May 7, 2015Applicant: Cree, Inc.Inventors: Kurt Wilcox, Andrew Bendtsen, Dan Quella
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Publication number: 20150124458Abstract: A lamp is provided having at least one module that includes a plurality of LEDs distributed over a module surface. The plurality of LEDs are arranged in a row of a plurality of rows in a longitudinal direction of the at least one module. Each of the plurality of rows are arranged next to each other in a transverse direction of the at least one module that is perpendicular to the longitudinal direction. The lamp includes an optical system for bundling the light emitted by the plurality of LEDs. The optical system includes at least one cylinder lens that extends in the longitudinal direction. The light of at least some of the plurality of LEDs from a first row of the plurality of rows is bundled into a line on a target surface by the at least one cylinder lens.Type: ApplicationFiled: March 21, 2013Publication date: May 7, 2015Inventors: Susanne Schadt, Michael Peil, Harald Maiweg
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Publication number: 20150117021Abstract: Provided is an omnidirectional lens, having a housing having a closed end and an open end, a series of facets circumferentially arranged on the housing; and a series of concentric facets disposed on the closed end.Type: ApplicationFiled: August 7, 2014Publication date: April 30, 2015Inventors: Jeyachandrabose CHINNIAH, Thomas CLYNNE, Thomas Alexander KNAPP, Benjamin Lee YODER
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Publication number: 20150117024Abstract: Disclosed is a light emitting apparatus. The light emitting apparatus includes a package body; first and second electrodes; a light emitting device electrically connected to the first and second electrodes and including a first conductive semiconductor layer, a second conductive semiconductor layer, and an active layer between the first and second conductive semiconductor layers; and a lens supported on the package body and at least apart of the lens including a reflective structure. The package body includes a first cavity, one ends of the first and second electrodes are exposed in the first cavity and other ends of the first and second electrodes are exposed at lateral sides of the package body, and a second cavity is formed at a predetermined portion of the first electrode exposed in the first cavity.Type: ApplicationFiled: January 5, 2015Publication date: April 30, 2015Inventor: Bong Kul MIN
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Publication number: 20150117014Abstract: High efficiency optical collimator utilizing an open central light flow feature reduces losses while maintaining high intensity. Many degrees of collimation are possible including wide beam angles which traditionally exhibit high back-reflection losses.Type: ApplicationFiled: October 28, 2014Publication date: April 30, 2015Inventor: Edward E. Bailey
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Publication number: 20150109795Abstract: A lens unit includes a lens and a reflector received in the lens. The lens includes a light incident face and a light emerging face opposite to the light incident face. The reflector is enclosed by the light incident face. The reflector has a diameter gradually increasing and then decreasing along an optical axis of the lens. The reflector reflects light emitted from the LED divergently to enter the lens. An LED module incorporating the lens unit is also disclosed.Type: ApplicationFiled: October 31, 2013Publication date: April 23, 2015Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: CHAU-JIN HU, YUNG-LUN HUANG
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Publication number: 20150109796Abstract: The present disclosure relates to a lens. The lens includes a bottom surface, a light input surface, a light output surface and reflective structure. The light input surface is a curved surface depressing from a center of the bottom surface. The light output surface is opposite to the bottom surface. The light output surface includes a concave surface located at a center thereof and a convex surface located at peripheral thereof and surrounding the concave surface. The reflective structure is received in the light input surface. The reflective structure includes a plurality of globoid reflective units. The present disclosure also relates to a light source module with the lens.Type: ApplicationFiled: November 18, 2013Publication date: April 23, 2015Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: CHAU-JIN HU, LI-YING WANG HE
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Publication number: 20150092420Abstract: An optical system comprising a non-specular ceramic reflector surrounding one or more electrode-less bulbs containing a fill that forms a light-emitting plasma when excited with radio frequency, to be used in a fixture for illuminating subjects, for the purpose of high output lighting, such as lighting for image capture, horticulture, stadium, port, roadway, construction and area lighting. This ceramic reflector generates a uniform lambertian reflection specifically evening out the light emission from the electrode-less bulb producing a uniform beam of light with a spread between about 1 to about 300 degrees. This ceramic reflector greatly increases the amount of light falling on a given subject in comparison to the fixture without said reflector system.Type: ApplicationFiled: October 1, 2014Publication date: April 2, 2015Inventors: Jonathan Edward Miller, Robert Rutherford, Jaime Emmanuelli
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Patent number: 8992052Abstract: An optical element for a lamp or lighting apparatus having at least one light emitting diode (LED) as a light source is provided. The optical element is positioned proximate to the LED and receives light rays therefrom. In turn, the optical element distributes the substantially unidirectional light output from the LED into an omnidirectional output with a controlled variance in light intensity at different directions about the LED. A diffuser can also be used around the optical element and LED to provide further distribution of the light rays by e.g., light scattering.Type: GrantFiled: August 3, 2012Date of Patent: March 31, 2015Assignee: GE Lighting Solutions, LLCInventors: Dengke Cai, Jeyachandrabose Chinniah, Glenn Howard Kuenzler
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Publication number: 20150078006Abstract: A lens unit includes a lens and a reflector hung to the lens. The lens includes a bottom face, a light incident face formed in the bottom face, a light emerging face opposite to the bottom face and a lateral face connecting the bottom face with the light emerging face. A wire extends through the light incident face and the light emerging face. A top end of the wire is attached on a block disposed on the light emerging face, a bottom end of the wire is attached to the reflector. An LED module incorporating the lens unit is also disclosed.Type: ApplicationFiled: October 14, 2013Publication date: March 19, 2015Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: CHAU-JIN HU, LI-YING WANG HE
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Patent number: 8979326Abstract: A lens includes a bottom face, a light incident face formed in the bottom face, a light emerging face opposite to the bottom face and a lateral face formed between the bottom face and the light emerging face. A light diverging protrusion is formed on the light incident face. The light diverging protrusion has a conical face gradually shrinking away from the light emerging face. An LED unit incorporating the lens is also disclosed.Type: GrantFiled: August 21, 2013Date of Patent: March 17, 2015Assignee: Hon Hai Precision Industry Co., Ltd.Inventors: Chau-Jin Hu, Li-Ying Wang He
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Patent number: 8979321Abstract: A light guide (201) including a transparent element is presented. The transparent element includes an optical diverter section (204) including one or more reflective surfaces (205) forming walls of a notch (206) extending into the diverter section, where the reflective surfaces provide total reflections for directing light into directions lateral with respect to an arrival direction of the light. The transparent element includes an optical channel section (208) for receiving the light from a light source and for directing the light to the optical diverter section. The optical channel section includes a side surface (209) shaped to provide total reflections for directing light to the optical diverter section. The optical channel section makes it possible to place the light source a distance apart from the optical diverter section and also to prevent or at least to reduce direct propagation of light from the light source to the lateral directions.Type: GrantFiled: March 7, 2013Date of Patent: March 17, 2015Assignee: Ledil OyInventors: Hannu Hukkanen, Pasi Vallevuori
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Publication number: 20150070900Abstract: The present disclosure describes a compact spotlight that can change the area which it illuminates. The spotlight incorporates a wide angle light source, a catadioptric lens, and a bearing system for moving the catadioptric lens, the light source, or both. Movement of the light source relative to the catadioptric lens along the optical axis can change the beam diameter of the spotlight, while providing an acceptable illumination pattern.Type: ApplicationFiled: September 10, 2014Publication date: March 12, 2015Inventors: Patrick R. Fleming, Thomas R.J. Corrigan, Lars A. Smeenk, Thomas R. Hoffend, JR.
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Patent number: 8975806Abstract: A lens includes a first lens section and a second lens section, which are integrally formed. The first lens section is formed in a hemispherical shell shape including a first recess opened toward one side of an optical axis direction in which light from a light source is made incident. The second lens section is formed in a hemispherical shell shape including a second recess opened toward the other side of the optical axis direction.Type: GrantFiled: August 29, 2011Date of Patent: March 10, 2015Assignee: Toshiba Lighting & Technology CorporationInventors: Toshitake Kitagawa, Makoto Sakai
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Publication number: 20150062917Abstract: An illumination device includes a light reflector; a base member disposed below the light reflector, having an upper surface provided a light emitting unit for emitting a direct light beam that extends directly to an exterior of the reflector and an indirect light beam that extends to the exterior of the reflector only after being reflected from the reflector; an optical lens disposed within the reflector in such a manner so as to be located above, spaced apart from the light emitting unit at a predetermined distance and lied within a traveling path of the direct light beam such that the direct light beam is adapted to pass through the optical lens; and a lens seat mounted securely on the reflector, having a lower surface that faces the base member and that is formed with a plurality of light incident sections located adjacent to one another.Type: ApplicationFiled: March 7, 2014Publication date: March 5, 2015Applicant: JENN FENG NEW ENERGY CO., LTD.Inventor: Wei Kung Yin
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Publication number: 20150062916Abstract: An illuminating apparatus includes a light source and an optical member that controls light distribution of light emitted from the light source in a forward direction. A plurality of prisms extending in one direction are provided on one principal surface of the optical member in regions on both sides when divided at a virtual plane that includes a reference axis. The plurality of prisms include reflecting prisms that reflect light from a light source that is disposed virtually on the reference axis and emit this light from the optical member. The light source is disposed such that its optical axis is shifted in one direction relative to the reference axis.Type: ApplicationFiled: August 7, 2014Publication date: March 5, 2015Inventor: Ryohei TAKAYAMA
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Publication number: 20150049336Abstract: An integrated illumination reference source for generating an illumination reference signal may include an optical element having a first outer surface and a second outer surface, such that the first and the second outer surface are substantially opposing. The optical element receives an incident optical signal at the first outer surface and projects the incident optical signal from the second outer surface onto a surface. A reflective device that is located on a region of the second outer surface is offset from an optical axis of the optical element. The reflective device includes a reflective surface that reflects a portion of the incident optical signal from the second outer surface back through the first outer surface, whereby the reflective surface of the reflective device is encapsulated between the first outer surface and the second outer surface of the optical element.Type: ApplicationFiled: August 19, 2013Publication date: February 19, 2015Applicant: International Business Machines CorporationInventor: CARLOS STROCCHIA-RIVERA
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Publication number: 20150043217Abstract: An LED (light emitting diode) light source module includes a first optical lens, an LED light source received in a groove of the first optical lens and a second optical lens located at a light path of the LED light source and above the first optical lens. The first optical lens includes a first reflecting surface around the groove and a second reflecting surface. The second optical lens includes a reflecting surface facing the LED light source, and light which is incident to the reflecting surface of the second optical lens is reflected thereby to the first reflecting surface and the second reflecting surface of the first optical lens. A light diffusion plate is attached to the second optical lens at a position away from the reflecting surface of the second optical lens.Type: ApplicationFiled: November 5, 2013Publication date: February 12, 2015Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: CHAU-JIN HU, YUNG-LUN HUANG
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Patent number: 8944642Abstract: The present invention discloses a light assembly, which includes a transparent main body and a lens. The transparent main body includes an interior chamber gradually expanding from bottom to top, an inner wall encircling the interior chamber, and an outer wall encircling the inner wall. The outer wall is a total internal reflection surface. The inner wall includes a plurality of first facets facing a first direction and a plurality of second facets facing a second direction which is different from the first direction. The first facets and the second facets are provided to encircle the interior chamber respectively. Either side of each of the first facets is connected to one of the second facets, and each of the two adjacent first facet and second facet form an angle therebetween. The lens is fitted into the main body and faces the interior chamber of the main body.Type: GrantFiled: March 23, 2012Date of Patent: February 3, 2015Assignee: B&M Optics Co., Ltd.Inventor: Hung-Pin Kuo
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Patent number: 8937329Abstract: An encapsulating sheet includes a transparent layer in which a concave portion that is dented from the surface inwardly is formed and a phosphor encapsulating layer which fills the concave portion. The transparent layer is formed from a transparent composition containing a first silicone resin composition and the phosphor encapsulating layer is formed from a phosphor encapsulating composition containing a phosphor and a second silicone resin composition.Type: GrantFiled: March 4, 2013Date of Patent: January 20, 2015Assignee: Nitto Denko CorporationInventor: Hiroyuki Katayama
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Publication number: 20150009680Abstract: An exemplary lens includes a bottom surface, a first light exit surface extending upwardly from an outer periphery of the bottom surface, a second light exit surface extending upwardly from a top of the first light exit surface, and a reflecting surface extending inwardly and downwardly from a top of the second light exit surface towards the bottom surface to have a funnel-shaped configuration. A receiving space is defined in the bottom surface to receive a light source therein. The receiving space is defined by a top surface and a side surface interconnecting the top surface and the bottom surface. A pyramid surface is in the middle of the top surface and recessed upwardly and inwardly away from the bottom surface.Type: ApplicationFiled: July 1, 2014Publication date: January 8, 2015Inventors: CHAO-HSIUNG CHANG, PIN-CHUAN CHEN, LUNG-HSIN CHEN, WEN-LIANG TSENG
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Publication number: 20150009681Abstract: Provided is an illumination device capable of preventing a reflection sheet in the periphery of a light-emitting element from being raised while minimizing the instability in the fixture of a diffusion lens. The illumination device comprises a light-emitting element, a mounting substrate, a diffusion lens, and a reflection sheet having a through-hole. The diffusing lens includes a lens portion for diffusing light, and a fixed portion to be fixed to the mounting substrate. An engaging portion that sandwiches the reflection sheet between the engaging portion and the mounting substrate is formed in the fixed portion.Type: ApplicationFiled: December 4, 2012Publication date: January 8, 2015Inventor: Motoki Takase
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Publication number: 20150003075Abstract: Various embodiments relate to a lens for omnidirectional illumination being rotationally symmetrical and including a light incident surface, a first refractive surface, a first reflective surface, a second refractive surface, and a third refractive surface. A first portion of light which passed through the light incident surface is refracted by the first refractive surface to produce first emergent light. A second portion of the light which passed through the light incident surface is reflected by the first reflective surface to the second refractive surface, and then is refracted by the second refractive surface to produce second emergent light. A third portion of the light which passed through the light incident surface is refracted by the third light refractive surface to produce third emergent light, the first emergent light, the second emergent light and the third emergent light jointly achieved omnidirectional illumination.Type: ApplicationFiled: January 28, 2013Publication date: January 1, 2015Inventors: XueQin Lin, YingJun Cheng
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Publication number: 20140376219Abstract: The invention provides a light-emitting device which is capable of applying light to a display panel with uniformity in brightness and can be made lower in profile. A light-emitting device (11) includes an LED chip (111a), a base support (111b) which supports the LED chip (111a), and a lens (112) disposed in contact with the LED chip (111a) so as to cover the LED chip (111a) and the base support (111b). The lens (112) has first curved sections (1122) which reflect light that has reached a top surface (112a) so that the reflected light is emitted from a side surface (112b), and second curved sections (1123) which refract light that has reached the top surface (112a) to outside so that the refracted light is emitted from the top surface (112a).Type: ApplicationFiled: February 27, 2012Publication date: December 25, 2014Applicant: SHARP KABUSHIKI KAISHAInventors: Yasuhiro Ono, Makoto Masuda, Takasumi Wada, Kenzo Ohkubo, Nobuhiro Shirai
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Publication number: 20140369050Abstract: A light assembly comprises an LED light source, a reflector, and an optical element assembly. The LED light source comprises a light emitting die and has an optical axis which extends from the light emitting die and perpendicular to a first plane. The reflector defines an optical cavity and has a reflective surface oriented to reflect light emitted by the light source incident to the reflective surface along a range of reflected angles. The optical element assembly comprises an optical element disposed in the path of the light emitted from the light source. The optical element is supported within the optical cavity by a connector arm, which has first and second ends. The first end is connected to the optical element and the second end supports the optical element assembly from behind the reflector.Type: ApplicationFiled: June 13, 2014Publication date: December 18, 2014Inventor: Todd J. Smith
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Patent number: 8911118Abstract: An illumination system includes an LED module and an illuminated area. The LED module includes an LED, and a lens mounted in light path of the LED. The lens includes a light source recess, a first light emitting surface, a critical reflecting surface, and a second light emitting surface intersecting with the first light emitting surface and being on same side with the first light emitting surface. The first light emitting surface can receive more light quantity than the second light emitting surface. Although the light emitted from the first light emitting surface may have greater attenuation than the light emitted from the second light emitting surface, light emitted from the first light emitting surface can make up the intensity losses of attenuation as the first light emitting surface receives more light quantity than the second light emitting surface. As a result, the illumination system has a uniform illumination pattern.Type: GrantFiled: August 26, 2013Date of Patent: December 16, 2014Assignee: Ningbo Hi-Tech Park Self Electronics Co., Ltd.Inventors: Fawei Zhang, Le Xu, Wanjiong Lin
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Patent number: 8912471Abstract: A heating cooker of the present invention includes a plurality of light emitting indicator units. The light emitting indicator units each have a temperature sensing unit that senses an ambient temperature of a light emission source. Therefore, deterioration of the light emission source of each of the light emitting indicator units can be suppressed to realize a further reduction in thickness, and to improve visibility of the indicator sheet.Type: GrantFiled: July 2, 2010Date of Patent: December 16, 2014Assignee: Panasonic CorporationInventors: Takehiko Shigeoka, Akira Kataoka, Eiji Matsui
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Patent number: 8905593Abstract: A luminous flux control member that controls travelling direction of light emitted from a light source includes an incident area, an emission area, and a plurality of projecting sections. The plurality of projecting sections are constituted by an inner area, an intermediate area, and a peripheral area defined in the radial direction, and a first specific projecting section disposed in the inner area is configured such that a planar section that is used to measure the height of the first specific projecting section and is perpendicular to the optical axis is connected to an inner peripheral end and an outer peripheral end of a base end portion of the first specific projecting section. The projecting sections other than the first specific projecting section, in principle, come into contact internally or externally with another projecting section other than the first specific projecting section.Type: GrantFiled: August 31, 2012Date of Patent: December 9, 2014Assignee: Enplas CorporationInventor: Tomohiro Saito
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Publication number: 20140355272Abstract: A lighting assembly has a light strip and a first reflector. The light strip includes a base with a ridged wall, a light engine with a plurality of LEDs disposed over the base, and a lens disposed over the light engine. The first reflector has an opening and a tab adjacent to the opening. The light strip is disposed over the first reflector with the ridged wall disposed through the opening in the first reflector. The tab is disposed over the ridged wall to secure the light strip to the first reflector. A power supply is disposed over the reflector and electrically coupled to the light strip. The base of the light strip includes a thermally conductive material. The lens is formed with a light-diffusing material. The first reflector has a stepped mounting portion. A housing fixture is disposed over the lighting assembly.Type: ApplicationFiled: May 30, 2013Publication date: December 4, 2014Inventor: Der Jeou Chou
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Patent number: 8899778Abstract: The present invention provides an optical cavity structure of an LED lighting apparatus comprising a base, a light reflector, LED module, and a light cover. The light reflector can be integrally formed with the base or an independent unit. An optical cavity is constructed by the base, light reflector and light cover altogether, and the LED module is attached to the base received within the optical cavity. The light reflector can be symmetrical with inclined angle or as a conical shape provided on two sides opposing to the direction of light from the LED module. The inner surface of the light reflector is a light reflecting surface. The light cover is attached to the light reflector. As a result, the light from the LED is gathered and reflected by the light reflecting surface via the angle and shape of the light reflector to achieve an enhanced luminance range and illumination.Type: GrantFiled: July 17, 2012Date of Patent: December 2, 2014Inventors: Mei-Ling Yang, Chin-Chia Chang
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Patent number: 8901589Abstract: A semiconductor structure includes a first semiconductor layer, an active layer, a second semiconductor layer, a first optical symmetric layer, a metallic layer, and a second optical symmetric layer stacked in that sequence. A first effective refractive index n1 of the second optical symmetric layer, a second effective refractive index n2 of an integrated structure satisfy |n1?n2|?0.5, wherein the integrated structure includes the substrate, the first semiconductor layer, the active layer, the second semiconductor layer, and the first optical symmetric layer.Type: GrantFiled: December 28, 2012Date of Patent: December 2, 2014Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Jun Zhu, Hao-Su Zhang, Zhen-Dong Zhu, Qun-Qing Li, Guo-Fan Jin, Shou-Shan Fan
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Publication number: 20140347841Abstract: A lighting apparatus including a base, a light cover, an optical element, and at least a light emitting element is provided. The light cover having a first opening is disposed on the base and together with the base forms a space. The optical element is fixed on the light cover and substantially covers the first opening of the light cover. The light emitting element is disposed in the space. A light emitted by the light emitting element passes through the optical element and emits from the light cover to form an illumination property of the lighting apparatus, wherein the light cover together with the optical element is movable with respect to the light emitting element. When the light cover and the optical element have different relative positions with respect to the light emitting element, the illumination properties are different.Type: ApplicationFiled: March 3, 2014Publication date: November 27, 2014Applicant: LITE-ON IT CORPORATIONInventors: Sheng-Hsiung HU, Wei-Wen SHIH, Wen-Kwei LIANG, Chung-Dao CHEN
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Patent number: 8894250Abstract: In an illuminating device, when exiting lights come out from a lens sheet, the optical paths of the exiting lights are deflected in a direction opposite to an optical axis of a light source by means of a plurality of prisms which are included in a first lens group arranged on an inward side of the lens sheet located adjacent to the optical axis of the light source and each of which has a inclined face facing toward the optical axis of the light source, wherein the exiting lights from the light source via the first lens group of the lens sheet are adapted to mix with exiting lights from the light source via a second lens group located outside the first lens group, whereby the degree of color unevenness is reduced, that appears inherently when a pseudo white LED is used as the light source of the illuminating device.Type: GrantFiled: February 27, 2012Date of Patent: November 25, 2014Assignee: Minebea Co., Ltd.Inventors: Masaki Asai, Koji Sakai, Ryohei Takayama
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Publication number: 20140340889Abstract: An apparatus, system and method for glare reduction and effective lighting, including uplighting for such things as sports fields including golf courses or for other large area projects. A set of solid state light sources having an original perceived intensity from viewers and an original light output, are altered to be perceived by a viewer as a larger light source to reduce glare to the viewer. This alteration can occur when a number of techniques including diffusive or reflective surfaces in the original output of the light sources. Altered light output is further modified by either cutting portions of it off or redirecting portions of it for more effective use. For example, a visor with reflective surface can redirect light either to a target area or for uplighting. This allows concurrent benefits of glare reduction for viewers of the sources or effective use of light.Type: ApplicationFiled: May 20, 2014Publication date: November 20, 2014Applicant: Musco CorporationInventor: Myron Gordin
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Publication number: 20140340908Abstract: A reflector having a reflection pattern for compensating for a lighting characteristic of an LED package includes a body configured to be matched and coupled with the LED package having a discontinuous chip arrangement structure to improve the lighting characteristic of the LED package for divergent light. The body includes an inner wall having a diameter which is increased upwardly to form a narrow bottom and a wide top and including an opening formed at a lower end thereof so as to arrange the LED package therein. The inner wall of the body is formed with a trigonometric cross-wave pattern part which is patterned such that sine wave-type waves curved to form peaks and valleys are arranged to cross in a horizontal direction and a vertical direction at predetermined intervals over the whole area. The reflection pattern can compensates for an incomplete lighting characteristic of an LED package itself.Type: ApplicationFiled: November 15, 2012Publication date: November 20, 2014Inventors: Dong Hoon Hyun, Myeung Jae Noh
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Publication number: 20140340588Abstract: An illumination device (100) includes a solid-state light source device (10), a pickup lens unit (20) on which light from the solid-state light source device is incident, and a polarization conversion element (40). A lens (22) constituting the light exit surface of the pickup lens unit (20) is an aspherical lens having a light exit surface shaped like a rotationally symmetric shape centered on a light axis (40ax) when viewed from a direction of the light axis (40ax), and having a cross-section of an aspherical shape when cut with a plane parallel to the light axis (40ax).Type: ApplicationFiled: February 8, 2013Publication date: November 20, 2014Inventor: Koichi Akiyama
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Patent number: 8880360Abstract: A combination mirror and media display device assembly is provided. The combination mirror and media display device includes a mirror platform having a media display device viewing area and a media display device coupled to the mirror platform. The media display device is positioned to display images through the media display device viewing area.Type: GrantFiled: December 28, 2011Date of Patent: November 4, 2014Assignee: Electric Mirror, LLCInventors: James V. Mischel, Jr., James V. Mischel, Sr.
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Publication number: 20140321128Abstract: An optical lens including a first light exit surface, a total internal reflection (TIR) surface, a second light exit surface and a third light exit surface connected in an order, and correspondingly has a first intersection, a second intersection and a third intersection therebetween. A first line between the first intersection and a reference point on an optical axis of the optical lens intersects with the optical axis to form a first angle between 30 degrees to 60 degrees, and a first direction of the reference point pointing toward a point on the TIR surface intersects with a normal of the first light exit surface at the point to form a reflecting angle larger than a critical angle of TIR. A second line between the second intersection and the reference point intersects with the first line to form a second angle between 10 degrees to 30 degrees.Type: ApplicationFiled: April 29, 2014Publication date: October 30, 2014Applicant: WINTEK CORPORATIONInventors: Wen-Chieh Wu, Zhi-Ting Ye, Ming-Chuan Lin, Hsiu-Ping Lee
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Publication number: 20140321127Abstract: An LED module for use in a direct-type backlight module includes a printed circuit board, an LED arrange on the printed circuit board and electrically connected to the printed circuit board, and a lens covering the LED and fixed on the printed circuit board. A reflective layer is arranged on the printed circuit board. A semi-transparent surface is recessed and tampered from a top of a column-shaped protrusion at a center of the lens towards the LED. Part of light beams emitted from a center of the LED is refracted and diffused by the semi-transparent surface to an outside, and another part of the light beams emitted from a center of the LED is reflected by the semi-transparent surface to the reflective layer, and then reflected by the reflective layer to the outside.Type: ApplicationFiled: November 22, 2013Publication date: October 30, 2014Applicant: ADVANCED OPTOELECTRONIC TECHNOLOGY, INC.Inventors: CHAO-HSIUNG CHANG, CHE-HSANG HUANG, HOU-TE LIN, PIN-CHUAN CHEN
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Publication number: 20140321121Abstract: Disclosed is an apparatus for an optical assembly for an end cap (30) of a lighting fixture (10). The optical assembly includes an outer lens (50) and an inner lens (40) interior of the outer lens (50). The end cap (30) may be coupled to a lighting fixture main housing (12) and configured to enable light from a light source (18) within the main housing (12) to enter the end cap (30), be directed through the inner lens (40), and out the outer lens (50).Type: ApplicationFiled: January 12, 2012Publication date: October 30, 2014Applicant: KONINKLIJKE PHILIPS N.V.Inventors: Scott Santoro, Steven William Johns, Daniel Fortin
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Publication number: 20140313740Abstract: An LED illuminating device includes a printed circuit board, at least one LED chip group arranged on the printed circuit board, and a lens assembly, wherein the LED illuminating device further includes a reflector provided between the LED chip group and the lens assembly, wherein the reflector is configured to diffusely reflect light from the LED chip group so that the light is uniformized and emerges in a direction of the lens assembly.Type: ApplicationFiled: November 15, 2012Publication date: October 23, 2014Inventors: Yusheng Ming, Peng Chen, Haiping Yuan, Hui Gui
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Patent number: 8859308Abstract: A method for making a light emitting diode is provided. In the method, a substrate having an epitaxial growth surface is provided. A first semiconductor layer, an active layer, and a second semiconductor layer are grown on the epitaxial growth surface in series. The first semiconductor layer, the active layer, and the second semiconductor layer constitute a source layer. A metallic plasma generating layer is then formed on a surface of the source layer away from the substrate. A first optical symmetric layer is then disposed on a surface of the metallic plasma generating layer. A first electrode is applied on an exposed surface of the first semiconductor layer. A second electrode is applied to electrically connect with the second semiconductor layer.Type: GrantFiled: December 28, 2012Date of Patent: October 14, 2014Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Jun Zhu, Hao-Su Zhang, Qun-Qing Li, Guo-Fan Jin, Shou-Shan Fan
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Publication number: 20140301085Abstract: Disclosed herein is a lens and light emitting module for surface illumination. The light emitting module includes a circuit board; a light emitting device mounted on the circuit board; and a lens dispersing light emitted from the light emitting device. The lens includes a lower surface formed with a concave section defining a light incident surface through which light enters the lens, an upper surface through which light exits the lens, and legs coupled to the circuit board and disposed farther outside the lens than an area of the upper surface. The light emitting device is disposed within the concave section of the lens. With this structure, the lens and the light emitting module can be reduced in thickness.Type: ApplicationFiled: April 4, 2014Publication date: October 9, 2014Applicant: Seoul Semiconductor Co., Ltd.Inventors: Sung Ki HWANG, Eun Ju KIM, Jung Doo KIM
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Patent number: RE45258Abstract: In a projection optical system for use in an image projection apparatus illuminating an image display panel forming an image in accordance with a modulating signal with illumination light from a light source, the projection optical system includes first and second optical systems arranged along an optical path defining an upstream-downstream direction in the order described from upstream to downstream on the downstream side of the image display panel. The first optical system includes at least one dioptric system and has positive power. The second optical system includes at least one reflecting surface having power and has positive power. The image formed by the image display panel is formed as an intermediate image in the optical path, and the intermediate image is magnified and projected.Type: GrantFiled: April 11, 2013Date of Patent: November 25, 2014Assignee: Ricoh Company, Ltd.Inventors: Atsushi Takaura, Kazuhiro Fujita, Nobuo Sakuma