With Or Including Refractor Patents (Class 362/299)
  • Patent number: 10690334
    Abstract: An operatory light may comprise a bulb that includes a light emitting diode (LED) module positioned such that when the bulb is installed into a socket of the operatory light and powered, none of the light emitted from the LED is directed directly toward a lens of the operatory light, and only reflected light passes through the lens of the operatory light.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: June 23, 2020
    Assignee: CAO Group, LLC
    Inventors: Zhaohui Lin, Densen Cao
  • Patent number: 10473977
    Abstract: Provided is a surface light source apparatus that improves homogeneity of surface illumination light, using both light rays passing through a light emitting surface of a light-distribution control element and the reflected light rays. A surface light source apparatus according to the present invention includes: a light source; a holding substrate having a main surface on which the light source is held; a light-distribution control element disposed on the main surface of the holding substrate to cover the light source, the light-distribution control element changing distribution of light emitted from the light source; and a diffuser that diffuses light emitted from the light-distribution control element. The light-distribution control element includes a diffusion part disposed at an installation surface that can abut the main surface of the holding substrate.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: November 12, 2019
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hideyuki Murai, Tomohiko Sawanaka
  • Patent number: 10260726
    Abstract: A vehicle lamp is provided. The vehicle lamp includes a base, a first reflection structure, a second reflection structure, a first light emitting structure, a second light emitting structure, and a lens structure. The first reflection structure and second reflection structure are disposed on the base. The first reflection structure includes at least one first focal point and at least one second focal point. The second reflection structure includes a first focal point and a second focal point. The first light emitting structure and the second light emitting structure are disposed on the base. The lens structure includes a lens optical axis and a lens focal point.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: April 16, 2019
    Assignee: CHIAN YIH OPTOTECH CO., LTD.
    Inventor: Cheng Wang
  • Patent number: 10160379
    Abstract: A lighting device including a reflector having a plurality of reflex pins, a light pipe integrally connected to the reflector along the periphery of the reflector forming a neck between the light pipe and the reflector, wherein the light pipe and the reflector function independently, and a light source connected to the light pipe.
    Type: Grant
    Filed: December 30, 2016
    Date of Patent: December 25, 2018
    Assignee: Valeo North America, Inc.
    Inventors: Jeremy Gahimer, Thomas Maire, Charles Crespin, Pascal Haillant
  • Patent number: 10132471
    Abstract: A lighting device includes a light source, a reflector having an ellipsoidal reflection surface, an aspherical lens, and an exit pupil. The source is arranged at a first focal point of the reflection surface and a part of the emitted light is reflected from the reflection surface in the direction of a second focal point. The pupil is arranged offset with respect to the second focal point. The lens is arranged between the reflection surface and the pupil in a beam path with the reflected light and is shaped such that a first part of the reflected light passes through the lens with an aperture angle altered by not more than 5° in a central region and passes through the pupil and a second part of the reflected light penetrates through the lens in an outer region and is deflected by the lens and is consequently guided through the pupil.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: November 20, 2018
    Assignee: OSRAM GmbH
    Inventor: Henning Rehn
  • Patent number: 9927091
    Abstract: A spotlight and a converging lens are provided. The converging lens has a light-emitting surface and a light incidence surface. An outer diameter of the converging lens is progressively decreased from the light-emitting surface toward the light incidence surface. The light-emitting surface has an opening. A maximum distance between the light incidence surface and the light-emitting surface along a thickness direction of the converging lens is H1, a maximum distance between a bottom surface of the opening and the light incidence surface along the thickness direction is H2, and 0.3×H1?H2?0.5×H1. The light incidence surface has at least one annular groove. The at least one annular groove has a central axis. The converging lens of the invention may converge light beam and mitigate a light spill phenomenon, and the spotlight applying the converging lens has good lighting quality.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: March 27, 2018
    Assignee: Young Lighting Technology Inc.
    Inventor: Hung-Wei Liu
  • Patent number: 9890921
    Abstract: Provided are an optical element and a backlight unit including the same. The optical element includes a light transmitting substrate including one face and the other face, a plurality of reflective lenses formed to protrude from the one face of the light transmitting substrate, and a scattering pattern which is formed on the one face of the light transmitting substrate and in an area between the plurality of reflective lenses.
    Type: Grant
    Filed: April 8, 2015
    Date of Patent: February 13, 2018
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Sang Jun Park, Chang Hyuck Lee
  • Patent number: 9683719
    Abstract: This luminous flux control member has: an incidence surface through which light emitted from a light-emitting element enters; an emission surface through which the light entering from the incidence surface is emitted to the outside; and multiple ridges that are formed on the back side so as to surround the central axis (CA) and that have a substantially triangular cross-sectional shape. Each of the multiple ridges has a first reflecting surface, a second reflecting surface, and a ridge line which is the line of intersection of the first reflecting surface and the second reflecting surface. An imaginary line containing the ridge lines intersects the central axis (CA) at a position closer to the front side than the ridge lines.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: June 20, 2017
    Assignee: ENPLAS CORPORATION
    Inventor: Hiroshi Takatori
  • Patent number: 9377180
    Abstract: Light flux controlling member includes first light flux controlling member, second light flux controlling member and holder having a substantially cylindrical shape. At least part of light emitted from light-emitting element is incident on first light flux controlling member, and first light flux controlling member emit the light toward second light flux controlling member. Second light flux controlling member reflects part of light arriving from first light flux controlling member while allowing remaining part of the light to pass therethrough. Holder allows light reflected by second light flux controlling member to pass therethrough. Recess that controls the emission direction of light passing through holder is formed on the external peripheral surface of holder.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: June 28, 2016
    Assignee: Enplas Corporation
    Inventor: Masato Nakamura
  • Patent number: 9249945
    Abstract: Disclosed is a lamp for a vehicle, which includes: an inner lens; a light source unit configured to irradiate light toward the inner lens; and a mirror reflector configured to extend an image of the inner lens by reflecting one area of the inner lens. As a result, a large-area image of the inner lens is able to be implemented.
    Type: Grant
    Filed: July 17, 2014
    Date of Patent: February 2, 2016
    Assignee: HYUNDAI MOBIS CO., LTD.
    Inventors: Jin A Kim, Seung Woo Baek, Ban Suk Choi
  • Patent number: 9200775
    Abstract: Light assembly (10) having reflector (16), light source (18), an outer light cover (12), and a curved transflective surface (15). Embodiments of light assemblies described herein are useful, for example, as signs, backlights, displays, task lighting, luminaire, and vehicle (e.g., cars, trucks, airplanes, etc.) components. Vehicle comprising light assemblies include those where the light assembly is a vehicle tail light assembly.
    Type: Grant
    Filed: April 23, 2010
    Date of Patent: December 1, 2015
    Assignee: 3M Innovative Properties Company
    Inventors: Stephen K. Eckhardt, Barry S. Carpenter, David A. Ender, David J. Lundin, Mark E. Napierala, Jennifer J. Sahlin, David F. Slama, Karl A. Vick, John A. Wheatley
  • Patent number: 9103519
    Abstract: A vehicle lighting unit is capable of enhancing the light utilization efficiency by effectively utilizing the part of light emitted from the semiconductor light emitting element that typically does not enter the light guide lens while being reflected by the light incident surface of the lens. The vehicle lighting unit can include a light guide lens a first surface configured to be disposed on a front side of a vehicle body, a second surface configured to be disposed on a rear side thereof and a recessed portion including a third surface; and a light emitting element disposed substantially at a reference point of the light guide lens. The second surface can include a reflection area extending from the recessed portion. The third surface can surround the semiconductor light emitting element, so that the light emitted from the semiconductor light emitting element can be incident on the third surface.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: August 11, 2015
    Assignee: Stanley Electric Co., Ltd.
    Inventor: Sadayuki Konishi
  • Publication number: 20150098226
    Abstract: An LED light source module includes a base, an LED light source positioned on the base, an optical lens located on the light path of the LED light source and a diffusion plate positioned above the optical lens. An upper surface of the base is a light reflective surface. The optical lens defines a through hole aligned with the LED light source. A reflecting body is protruded from the diffusion plate toward the through hole of the optical lens. When the light emitted from the LED light source is projected to the reflecting surface of the light reflecting body through the through hole, the light is reflected by the reflecting surface to reach the upper surface of the base, and then is reflected by the upper surface of the base to reach the diffusion plate.
    Type: Application
    Filed: December 12, 2013
    Publication date: April 9, 2015
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: PO-CHOU CHEN
  • Patent number: 8979320
    Abstract: A lighting device includes a light emitting diode (LED) element configured to emit light about an axis. The lighting device further includes an optic of a transparent material. The optic includes a first surface configured to intersect and refract said emitted light to form a first light interior to the optic, a second surface configured to intersect and reflect said first light to form a second light interior to the optic. The optic further includes a third surface configured to intersect and reflect said second light to form a third light interior to the optic. The optic further includes a fourth surface configured to intersect and transmit said third light to form a fourth light exterior to said optic. The fourth surface is further configured to concentrate the fourth light about an emerging light plane perpendicular to said axis.
    Type: Grant
    Filed: October 23, 2013
    Date of Patent: March 17, 2015
    Inventor: Kevin McDermott
  • Patent number: 8960967
    Abstract: An intelligent light fixture is shown which allows for hands-free or automatic control of any desired combination of the color of the lighting beam, the focus position of the lighting beam, the movement of the lighting beam and projection of patterns created by the lighting beam. The intelligent light fixture is configured and mounted in such a way that all of the above can be accomplished from a single mounting position on top, or of within, the structure that holds the intelligent light fixture. The intelligent light fixture may be contained within a housing and said housing maybe mounted to a light pole.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: February 24, 2015
    Inventor: Ronald P. Harwood
  • Patent number: 8931926
    Abstract: A reflector luminaire with a light-emitting means and a reflector, which reflects light from the light-emitting means which is incident on said reflector in a predetermined emission direction and which has a rim (2) which points towards the emission direction makes it possible to perform particular lighting tasks, for example the uniform illumination of a rectangular illumination area by virtue of the fact that the reflector comprises a plurality of differently designed segments (7), which are calculated individually with respect to the light-emitting means for defined illumination of a predetermined area, and by the fact that the segments (7) are joined to one another by transition sections (8), by means of which the predetermined reflecting total surface area of the segments (7) is reduced by less than ¼.
    Type: Grant
    Filed: October 22, 2010
    Date of Patent: January 13, 2015
    Assignee: Auer Lighting GmbH
    Inventors: Ralf Becker, Harry Wagener, Marc C. Hubner
  • Publication number: 20140347855
    Abstract: A LED luminaire has a first printed circuit board (PCB) and a second PCB spaced in such manner to generate an empty gap. Spacers are interposed between the first PCB and second PCB in such manner to keep them spaced. A printed circuit is obtained on the internal side of the first PCB. At least one LED is mounted on a pad of the printed circuit, in such manner that light emitted by the LED is subject to multiple reflections between the metal layers of the first PCB and second PCB and reflected light comes out of the gap, illuminating the surrounding space.
    Type: Application
    Filed: December 6, 2012
    Publication date: November 27, 2014
    Inventor: Luca PIETRELLA
  • Publication number: 20140347866
    Abstract: An apparatus is described that includes a light source, a first reflector, a lens and a second reflector. The first reflector is positioned to reflect a first portion of light from the light source, wherein the first portion of light is radiated from the light source in a central forward solid angle as defined by an outer edge of the first reflector. The lens is disposed azimuthally horizontal to the light source for accepting a second portion of light from the light source emitted in a peripheral forward solid angle. The second reflector reflects the first portion of light after reflectance from the first reflector and the second portion of light after passing through the lens in a composite beam, wherein the first reflector and the lens are configured such that the first and second portions of light behave as though they were emitted from a point source at the focus of the second reflector.
    Type: Application
    Filed: April 18, 2014
    Publication date: November 27, 2014
    Inventor: Ronald Garrison Holder
  • Publication number: 20140313739
    Abstract: An optical element that may be replaceably mounted to an LED based illumination device. The optical element includes a hollow shell reflector and a plurality of annular shell elements disposed within the hollow shell reflector at different distances from the input port of the optical element. An annular shell element that is closer to the input port of the optical element has a radius that is less than the radius of an annular shell element farther from the input port.
    Type: Application
    Filed: July 2, 2014
    Publication date: October 23, 2014
    Inventors: John S. Yriberri, Christopher R. Reed, Jim W. Li, Gerard Harbers
  • Publication number: 20140240991
    Abstract: Systems and devices for collimating beams of light emitted by a light emitting diode are disclosed. In one embodiment, an optical device comprises a bowl shaped reflector base, a light emitting diode (LED) physically attached to the bowl shaped reflector base, a central reflector in a shape of a hyperbolic cone formed above the LED about a center of the bowl shaped reflector base, and a transparent plate formed around a base of the hyperbolic cone. In the embodiment, the central reflector in the shape of the hyperbolic cone is configured to reflect a portion of light emitted from the LED to an outer edge of the bowl shaped reflector base which in turn substantially reflect the portion of light via the transparent plate almost parallel to an optical axis of the LED.
    Type: Application
    Filed: October 27, 2011
    Publication date: August 28, 2014
    Applicant: LG ELECTRONICS INC.
    Inventors: Emil Aslanov, Nikolay Petrov, Alexey Borodulin, Georgy Tananaev, Seokhoon Kang
  • Patent number: 8807799
    Abstract: A lamp comprises: a dish-shaped (parabolic); an LED operable to generate excitation light; a light guide configured to extend along an axis of the reflector, wherein light generated by the at least one LED is coupled into a first end of the light guide and wherein light is emitted from the light guide at a light emitting surface that is in proximity to a second end of the light guide and at least one phosphor material provided as a layer on at least a part of the light emitting surface of the light guide. An LED light bulb is also disclosed.
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: August 19, 2014
    Assignee: Intematix Corporation
    Inventors: Yi-Qun Li, Ian Collier
  • Publication number: 20140168966
    Abstract: A zoom unit (1) of a light engine (5), comprising at least one lens (2), at least one first reflector (3) and at least one second reflector (4), other at least one lens (2) receives a collimated beam (LI) from a light source unit (6) of the light engine (5), the collimated beam (LI) being incident on the first reflector (3) after being converged by the lens (2), and being incident on the second reflector (4) after being reflected by the first reflector (3), to produce an output beam (L4) with its beam angle changed.
    Type: Application
    Filed: June 1, 2012
    Publication date: June 19, 2014
    Inventors: WeiHuanq Chen, Ai Ma, SiXiong Zeng, Haiqiang Zhong
  • Patent number: 8740429
    Abstract: A vehicular lamp can include a guiding lens having a polygonal outline. The guiding lens can include divided portions around the optical axis with an equal center angle. The divided portions can each have an incidence face, a reflection face that can reflect to an optical axis direction light emitted from a light source and having passed through the incidence face, and a light-exiting face that can allow the light from the reflection face to pass therethrough to be projected in an illumination direction of the vehicular lamp. Each divided portion can have an outer-diameter end of the light-exiting face or reflection face at a position farthest from the optical axis within a plane including the maximum radius portion of the divided portion and the optical axis.
    Type: Grant
    Filed: November 28, 2011
    Date of Patent: June 3, 2014
    Assignee: Stanley Electric Co., Ltd.
    Inventors: Hidetaka Okada, Takuya Matsumaru
  • Publication number: 20140146541
    Abstract: A variety of light-emitting devices are disclosed that are configured to manipulate light provided by one or more light-emitting elements (LEEs). In general, a light-emitting device includes one or more light-emitting elements (LEEs) disposed on a base surface that are configured to emit light, a first optical element having a first surface spaced apart from the LEEs and positioned to receive light from the LEEs, a transparent second optical coupled to the first optical element, and a reflector element adjacent the second optical element arranged to reflect a portion of light output from the second optical element.
    Type: Application
    Filed: January 31, 2014
    Publication date: May 29, 2014
    Applicant: Quarkstar LLC
    Inventors: John J. Uebbing, Roland H. Haitz
  • Patent number: 8727574
    Abstract: An economical LED light module configured to emit a uniform pattern of light from a single LED utilizing a minimal amount of energy and exhibiting a long and useful life is provided. The LED light module includes a main hyperbolic reflector and a plug receptacle having an electrical connector configured for electrical communication with a power source. A LED is mounted in electrical communication with the electrical connector. An elongate light pipe extends between a light receiving end configured to receive light emitted from the LED and a light emitting end. The light emitting end has a parabolic reflector positioned concentrically about a focal point of the hyperbolic reflector.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: May 20, 2014
    Assignee: Federal-Mogul Corporation
    Inventors: Jeffrey Simchak, Jeremy Wong
  • Patent number: 8714800
    Abstract: The present invention provides a light source device for emitting concentrated light, which is prepared by concentrating light emitted from a light source, including: the light source; a reflective box in which the light source is provided; a plurality of light guides having a circular column shape or a polygonal column shape and having two end surfaces being different in area; and light separating means, the reflective box having a plurality of openings, each opening being provided with one of the light guides in such a way that the end surface smaller in area faces the light source, and each light separating means being provided at a position between the adjacent ones of the openings. With this, a small-sized light source device for emitting light with high output and high directivity, and a simulated solar light irradiation device including the same are provided.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: May 6, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Akiko Kobayashi, Kohji Minami, Hiroyuki Tadano, Norito Fujihara, Tamon Iden, Atsushi Nakamura
  • Patent number: 8702287
    Abstract: A lighting fixture can include a light source, and a lens body including an incident face through which light emitted from the light source enters the lens body, an exit face, and a reflecting face configured to reflect light which has entered the lens body from the incident face such that the reflected light is emitted from the exit face to form a predetermined light distribution pattern having a boundary line between light and dark. The reflecting face can include a first reflecting region configured to reflect light with a reference wavelength which has entered the incident face perpendicularly with respect to the incident face. A second reflecting region can be configured to reflect light with a wavelength longer than the reference wavelength. A third reflecting region can be configured to reflect light with a wavelength shorter than the reference wavelength.
    Type: Grant
    Filed: March 5, 2012
    Date of Patent: April 22, 2014
    Assignee: Stanley Electric Co., Ltd.
    Inventor: Masafumi Ohno
  • Patent number: 8696154
    Abstract: Luminaires are disclosed that include refractive and/or reflective structures that can provide or distribute lighting for a given area with high uniformity and efficiency. The structures can be used to distribute light from one or more light sources for lighting target areas with a desired light distribution. The lighting structures can be included in light strips or luminaires. Such luminaire can be utilized in place of fluorescent lights and can facilitate quick and easy retrofit for previous fluorescent lighting applications. The disclosed techniques and systems (including components and structures) can be particularly useful when employing one or more LEDs as light sources.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: April 15, 2014
    Assignee: LSI Industries, Inc.
    Inventor: Daniel C. Hutchens
  • Patent number: 8684575
    Abstract: A lighting unit including a lens body can achieve luminous flux utilization efficiency equal to or greater than a conventional lighting unit even with a reduced width of the lens body. A vehicle lighting unit can be constituted by a plurality of the lighting units. The lighting unit can include an LED light source, and a lens body disposed in front of the LED light source so that light emitted from the LED light source can be incident thereon. The lens body can include a lens portion configured to receive the light from the LED light source to collect the light, a front surface including the lens portion, a rear surface opposite to the front surface, a first end surface functioning as a light exiting surface having a substantially rectangular shape greater in width than in thickness, and a second end surface opposite to the first end surface.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: April 1, 2014
    Assignee: Stanley Electric Co., Ltd.
    Inventors: Yuki Mitsuhashi, Toru Umeda
  • Patent number: 8651685
    Abstract: Provided are solid state backlight devices and methods for forming the same. A solid state backlight unit according to some embodiments of the invention includes a housing having a major surface and multiple LEDs on a first surface of the major surface. The solid state backlight unit also includes a specular reflector proximate to the first surface of the major surface and oriented substantially perpendicular to the first surface of the major surface.
    Type: Grant
    Filed: March 16, 2007
    Date of Patent: February 18, 2014
    Assignee: Cree, Inc.
    Inventors: John K. Roberts, Chenhua You
  • Patent number: 8632224
    Abstract: A light emitting device includes: a first light emission element which emits a first light; a second light emission element which emits a second light; a first reflection surface which reflects the first light; and a second reflection surface which reflects the second light, wherein the first light emission element and the second light emission element are laminated in a first direction and disposed in such positions that the emission direction of the first light and the emission direction of the second light become parallel with each other and that the first light emission element and the second light emission element do not overlap with each other as viewed in the first direction, and the traveling direction of the first light reflected by the first reflection surface and the traveling direction of the second light reflected by the second reflection surface become parallel with each other.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: January 21, 2014
    Assignee: Seiko Epson Corporation
    Inventor: Hiroyasu Kaseya
  • Publication number: 20140016351
    Abstract: A light source module includes a light source unit which generates a light; a light emitting part spaced apart from the light source unit and comprising a light emitting surface; and a light transmitting part which transmits the light generated by the light source unit to the light emitting part. The light emitting part emits the light transmitted by the light transmitting part, through the light emitting surface.
    Type: Application
    Filed: November 17, 2012
    Publication date: January 16, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Chan-Jae PARK, Seung-Hwan BAEK, Youn-Ho HAN, Seok-Hyun NAM, Sang-Won LEE, Young-Keun LEE
  • Patent number: 8592881
    Abstract: An organic light emitting element includes an organic light emitting diode formed on a substrate, coupled to a transistor including a gate, a source and a drain and including a first electrode, an organic thin film layer and a second electrode; a photo diode formed on the substrate and having a semiconductor layer including a high-concentration P doping region, a low-concentration P doping region, an intrinsic region and a high-concentration N doping region; and a controller that controls luminance of light emitted from the organic light emitting diode, to a constant level by controlling a voltage applied to the first electrode and the second electrode according to the voltage outputted from the photo diode.
    Type: Grant
    Filed: April 7, 2008
    Date of Patent: November 26, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yun-gyu Lee, Byoung-deog Choi, Hye-hyang Park, Ki-ju Im
  • Patent number: 8562199
    Abstract: A lighting device can include an LED and a plate-like lens body including a narrow side surface configured as an elongated rectangular light exiting surface. The LED can face towards the lens body so that light emitted in a wide angle direction is directed to the front surface and the rear surface in the thickness direction and so that light in a narrow angle direction can impinge on the second side surface of the lens body to enter the lens body. The lens body can include a first optical system having a lens portion, a first light incident surface, a first total reflection surface, and a second total reflection surface. A second optical system can include a second light incident surface, a third total reflection surface, and a fourth total reflection surface. An air layer can be provided between the lens portion and the first light incident surface.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: October 22, 2013
    Assignee: Stanley Electric Co., Ltd.
    Inventor: Hidetaka Okada
  • Publication number: 20130208486
    Abstract: An illumination optic system includes a convex mirror to reflect light from a light source to towards a lens. The light source is at a first focus position and the lens is at a second focus position of the mirror. The system also includes a reflector to reflect light not incident on the lens toward the convex mirror. The reflector has a light guide hole to guide light to the incidence surface of the lens.
    Type: Application
    Filed: February 8, 2013
    Publication date: August 15, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Samsung Electronics Co., Ltd.
  • Patent number: 8506129
    Abstract: A lighting unit can include an LED light source, and a lens body light exiting surface greater in width than in thickness. The lens body can include a first optical system, a second optical system, and a third optical system. The first optical system can include: a lens section; a first light incident surface; a first total reflection surface; and a second total reflection surface. The second optical system can include: a second light incident surface; a third total reflection surface; and a fourth total reflection surface. The third optical system can include a third light incident surface and a fifth total reflection surface. The optical systems can direct light emitted by the source at wide or narrow angles to exit the lens body substantially parallel to the optical axis. A space can be formed between the lens section and the first light incident surface.
    Type: Grant
    Filed: January 24, 2012
    Date of Patent: August 13, 2013
    Assignee: Stanley Electric Co., Ltd.
    Inventor: Hidetaka Okada
  • Publication number: 20130182443
    Abstract: An apparatus is described that includes a light source, a first reflector, a lens and a second reflector. The first reflector is positioned to reflect a first portion of light from the light source, wherein the first portion of light is radiated from the light source in a central forward solid angle as defined by an outer edge of the first reflector. The lens is disposed azimuthally horizontal to the light source for accepting a second portion of light from the light source emitted in a peripheral forward solid angle. The second reflector reflects the first portion of light after reflectance from the first reflector and the second portion of light after passing through the lens in a composite beam, wherein the first reflector and the lens are configured such that the first and second portions of light behave as though they were emitted from a point source at the focus of the second reflector.
    Type: Application
    Filed: March 4, 2013
    Publication date: July 18, 2013
    Inventor: Ronald Garrison Holder
  • Patent number: 8475006
    Abstract: A dark field illuminator that includes: (i) a light source adapted to provide ring of light characterized by uniform intensity distribution; (ii) a collimating ring adapted to receive the ring of light and to direct collimated light beams towards an area of an inspected object such that different points within the area are illuminated by identical cones of light characterized by an incidence angle; and wherein the collimating ring and the light source are co-centric to an optical axis of the dark field illuminator.
    Type: Grant
    Filed: August 1, 2007
    Date of Patent: July 2, 2013
    Assignee: Camtek Ltd.
    Inventor: Zehava Ben-Ezer
  • Patent number: 8425096
    Abstract: The signal light of mirror type consists of a light source (1), a primary optical component (2), a secondary optical component (3), a tertiary optical component (4), one or more internal glasses (5), a cover glass (6) and an optical filter (7), characterized in that the light put out by the light source (1) is focused by the primary optical component (2) on the secondary optical component (3), and scattering elements, which are on the primary optical component (2) or on the secondary optical component (3) or on the primary optical component (2) and the secondary optical component (3), after passing through the optical filter (7) are projected onto the tertiary optical component (4), while the tertiary optical component (4) is formed by one or more smooth surfaces of a mirror type, and the image of the scattering elements is further distributed by the tertiary optical component (4) and passes through the one or more internal glasses (5) and the cover glass (6).
    Type: Grant
    Filed: February 2, 2010
    Date of Patent: April 23, 2013
    Assignee: Visteon Global Technologies, Inc.
    Inventors: Wilfried Dejmek, Jakub Lenk, Lumír Soukup
  • Patent number: 8419226
    Abstract: An LED unit includes an LED and a lens receiving the LED. The lens includes a first light-incident face confronting the LED to refract the light emitted from the LED with a small angle into the lens, a second light-incident face surrounding the LED to refract the light emitted from the LED with a large angle into the lens, a light-reflecting face to reflect the light from the second light-incident face towards a top of the LED, a first light-emergent face to refract the light from the first light-incident face out of the lens, and a second light-emergent face to refract the light from the light-reflecting face out of the lens.
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: April 16, 2013
    Assignees: Fu Zhun Precision Industry (Shen Zhen) Co., Ltd., Foxconn Technology Co., Ltd.
    Inventors: Ren-Tao Fu, Chin-Chung Chen
  • Patent number: 8419232
    Abstract: Some embodiments provide an illumination optical system. The optical system can include a first surface and a second surface. Each of the first and second surfaces can further comprises a multiplicity of corresponding Cartesian-oval lenticulations such that each lenticulation of the first surface focuses a source upon a corresponding lenticulation of the second surface and each lenticulation of the second surface focuses a target upon a corresponding lenticulation of the first surface.
    Type: Grant
    Filed: July 28, 2006
    Date of Patent: April 16, 2013
    Assignee: Light Prescriptions Innovators, LLC
    Inventors: Juan Carlos Minano, Pablo Benitez, Maikel Hernandez, Jose Blen, Ruben Mohedano, Oliver Dross
  • Patent number: 8371725
    Abstract: A shaped optical prism structure for mounting on an upward light-outgoing surface of a street light or wall lamp to change the direction of light through about 360 o by means of a recessed flat incident surface, a recessed primary full-reflection surface and a curved light-distribution surface formed of a series of sloping surfaces and to enable the light to be projected onto the floor.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: February 12, 2013
    Assignee: Taiwan Network Computer & Electronic Co., Ltd.
    Inventor: Ping-Han Chuang
  • Patent number: 8371720
    Abstract: In a diffusion sheet (46), first reflection areas (AR1) with high reflectance and second reflection areas (AR2) with low reflectance are alternately arranged parallel to each other on a light receiving surface (46R), and third reflection areas (AR3) with high reflectance and fourth reflection areas (AR4) with low reflectance are alternately arranged parallel to each other on an light emitting surface (46F). In the diffusion sheet (46), the first reflection areas (AR1) and the fourth reflection areas (AR4) are opposed to each other, and the second reflection areas (AR2) and the third reflection areas (AR3) are opposed to each other.
    Type: Grant
    Filed: July 23, 2008
    Date of Patent: February 12, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Takahiro Yoshikawa
  • Patent number: 8356914
    Abstract: A light projection device of a stack of at least 2 LED light projection modules. Each module shares a common optical axis and each includes an LED at least partially surrounded by an off-axis collimating optic and each projects a radially collimated canted beam towards and onto. There is a refracting plate for redirecting and changing the angle in respect to the optical axis of at least one of the radially collimated canted beams.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: January 22, 2013
    Inventor: Jerome H. Simon
  • Patent number: 8317356
    Abstract: A solar powered light emitting device includes a solar cell battery, a plurality of organic light emitting diode (OLED) elements and a plurality of light guides. The OLED elements and the light guides are arranged on a light incident surface of the solar cell battery in which each of the light guides are arranged between every two neighboring OLED elements for guiding lights into the solar cell battery.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: November 27, 2012
    Assignees: AU Optronics (Xiamen) Corp., AU Optronics Corporation
    Inventors: Ya-Tao Wang, Tao Zhu
  • Patent number: 8283844
    Abstract: A lighting device is disclosed herein. In the lighting device, a plurality of the light emitting elements may be provided based on a desired amount of light. The lighting device may include a reflector provided over the light emitting elements and a lens provided over the reflector. The reflector may be configured to reflect light emitted from the light emitting elements to reduce light loss and to improve light distribution efficiency in the lighting device.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: October 9, 2012
    Assignee: LG Electronics Inc.
    Inventors: Hankyu Cho, Daehyuk Lee, Sanghyun Park
  • Patent number: 8256931
    Abstract: A lens arrangement with an achromatic homogenizer and collimator for multiple LEDs. The lens arrangement combines the hemispherical emittance profiles from one or more LEDS into a collimated beam without chromatic aberration. The lens arrangement has one or more LEDs, a homogenizer, a solid lightpipe, an internal parabolic reflector, a retroreflector, and a refractor. The emittance profiles of the LEDs are distributed evenly over space and angle by multiple reflections inside a diffusely reflecting cavity of the homogenizer. The internal reflector has a numerical aperture of 1.0, which defines a hemispherical solid angle of collection within air. The retroreflector directs rays away from the LEDs. The retroreflection permits space for the electronics of high radiance LEDs. The refractor converts the retroreflector rays in a plurality of shapes. The lens is optimally designed for applications with high standards for color mixing, uniformity, and efficient conversion of electrical power into light.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: September 4, 2012
    Inventor: George H. Seward
  • Patent number: 8256922
    Abstract: A lighting device with a stable high light intensity can effectively dissipate heat generated by an LED so that the light emission efficiency does not deteriorate while the inside temperature distribution can be maintained in an even state. The lighting device can also be configured to prevent snow from adhering onto an outer lens by allowing an outer surface temperature of the lighting device to rise during actuation of the device. The lighting device can also be configured to improve light utilization efficiency. The lighting device can include a semiconductor light emitting device as a light source and can include structure(s) that guides the emission light to a projection lens. The semiconductor light emitting device can be configured to emit light in a reverse or opposed direction with respect to an illumination direction for the lighting device. A projection lens can be disposed in front of the semiconductor light emitting device.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: September 4, 2012
    Assignee: Stanley Electric Co., Ltd.
    Inventor: Takashi Futami
  • Publication number: 20120188774
    Abstract: A lighting unit can include an LED light source, and a lens body light exiting surface greater in width than in thickness. The lens body can include a first optical system, a second optical system, and a third optical system. The first optical system can include: a lens section; a first light incident surface; a first total reflection surface; and a second total reflection surface. The second optical system can include: a second light incident surface; a third total reflection surface; and a fourth total reflection surface. The third optical system can include a third light incident surface and a fifth total reflection surface. The optical systems can direct light emitted by the source at wide or narrow angles to exit the lens body substantially parallel to the optical axis. A space can be formed between the lens section and the first light incident surface.
    Type: Application
    Filed: January 24, 2012
    Publication date: July 26, 2012
    Inventor: Hidetaka OKADA
  • Patent number: RE45258
    Abstract: 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: Grant
    Filed: April 11, 2013
    Date of Patent: November 25, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Atsushi Takaura, Kazuhiro Fujita, Nobuo Sakuma