Reflective Patents (Class 359/627)
  • Patent number: 10495877
    Abstract: Head-up display includes display device and projection optical system. Display device displays an image. Projection optical system includes refraction lens. Projection optical system projects the image displayed on display device to an observer. Refraction lens is disposed while inclined with respect to a reference beam. An incident surface of refraction lens is a concave surface relative to a side of display device in an X-axis direction. A curvature in a Y-axis direction of the incident surface is smaller than a curvature in the X-axis direction.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: December 3, 2019
    Inventors: Satoshi Kuzuhara, Hiroaki Okayama, Yosuke Asai
  • Patent number: 10488638
    Abstract: Projection optical system for forming an image on a substrate and including an illumination relay lens and a projection lens each of which is a catadioptric system. The projection lens may include two portions in optical communication with one another, the first of which is dioptric and the second of which is catadioptric. In a specific case, the projection optical system satisfies 4 < ? ? I ? ? ? T ? < 30 , where ?I and ?T are magnifications of the first portion and the overall projection lens. Optionally, the projection lens may be structured to additionally satisfy 6 < ? ? II ? ? ? T ? < 20 , where ?II is a magnification of the second portion. A digital scanner including such projection optical system and operating with UV light having a spectral bandwidth on the order of 1 picometer. Method for forming an image with such projection optical system.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: November 26, 2019
    Inventor: David M. Williamson
  • Patent number: 10488640
    Abstract: An image acquisition device includes a spatial light modulator modulating irradiation light, a control unit controlling a modulating pattern so that a plurality of light converging points are formed in an observation object, a light converging optical system converging the modulated irradiation light, a scanning unit scanning positions of the plurality of light converging points in the observation object in a scanning direction intersecting an optical axis of the light converging optical system, and a photodetector configured to detect a plurality of observation lights generated from the plurality of light converging points. The control unit sets a center spacing between adjacent light converging points on the basis of the positions of the plurality of light converging points in a direction of the optical axis.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: November 26, 2019
    Assignee: Hamamatsu Photonics K.K.
    Inventor: Naoya Matsumoto
  • Patent number: 10369826
    Abstract: Disclosed is a security document including an image area, a repeating image pattern in the image area of mutually spaced image elements at a mutual distance D and a layer of a plastics material overlying the image area and an array of lenses in the plastics material. The lenses are spaced at a mutual distance L which may be equal to D or which may differ from D, the array of lenses overlying only a part of the image area surface and are formed in the plastics material within an image contour. Within the contour an image may be observed such as a Moiré magnification or a Moiré effect of light and dark stripes. The lenses may be formed for instance by laser ablation or by imprinting.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: August 6, 2019
    Inventors: Wilhelmus Johannes Wesselink, Jan Van Den Berg
  • Patent number: 10222626
    Abstract: An integral image device (1) comprises an array (20) of focusing micro-lenses (22), optionally a reflecting layer (40) and an image fragment plane (30). The reflecting layer is positioned on a same side of the array of focusing micro-lenses as a focal plane of the focusing micro-lenses as such. The reflecting layer is arranged for reflecting at least a part of light incident on a surface (49) of the reflecting layer facing the array of focusing micro-lenses. The image fragment plane has image fragment structures (32). The array of focusing micro-lenses is positioned between the reflecting layer and the image fragment plane. The image fragment plane is arranged to, when being viewed refracted through the array of focusing micro-lenses towards the reflecting layer, reflected by the reflecting layer and refracted back through the array of focusing micro-lenses from the reflecting layer, give rise to an integral image.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: March 5, 2019
    Inventor: Axel Lundvall
  • Patent number: 10225533
    Abstract: A system comprising: a handheld mobile device comprising: a projector unit configured to project an image; a camera; and a prism configured to reflect the image projected by the projector such that the camera can capture the projected image.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: March 5, 2019
    Assignee: Technion Research and Development Foundation Limited
    Inventors: Aaron Wetzler, Ron Kimmel
  • Patent number: 10194076
    Abstract: The present invention provides a fixed focus-type photographing apparatus, which can inexpensively and simply increase a depth of field by disposing a removable light diffusion plate in an existing lens optical system, and an optical system of the photographing apparatus. A photographing apparatus includes: an optical system, including two or more than two lenses, a diaphragm disposed between any two adjacent lenses of the lenses, and a light diffusion plate disposed at a position that is in front of a forefront first lens; and a photographing element, disposed at a position that is behind a rearmost final lens, where: the light diffusion plate includes a light diffusion surface, and a distance a from a front surface of the first lens to the diaphragm is less than a distance b from the diaphragm to the photographing element.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: January 29, 2019
    Assignee: OMRON Corporation
    Inventors: Shinya Matsumoto, Tuo Zhuang
  • Patent number: 10101589
    Abstract: There is provided an optical element including: a substrate; and a plurality of microlenses formed on the substrate. A reflecting surface of the microlens is an aspherical surface and asymmetrical with respect to an optical axis of the microlens. A pitch between adjacent ones of the microlenses is 10 to 230 ?m. A depth of the microlens is 3.2 to 15.4 ?m.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: October 16, 2018
    Inventor: Sohmei Endoh
  • Patent number: 9971159
    Abstract: A mirror is used to form a beam of laser-radiation having a uniform intensity distribution from a beam of laser-radiation having a non-uniform intensity distribution. The mirror has a reflective surface that has a compound shape, which is two inclined surfaces joined by a rounded apex. The compound-mirror is achromatic and can form a uniform intensity distribution from a polychromatic beam of laser-radiation. The uniform intensity distribution may be an isotropic distribution or a flat-top distribution in a plane. The non-uniform intensity distribution may be a Gaussian distribution from a laser source.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: May 15, 2018
    Assignee: Coherent, Inc.
    Inventors: Michael Hertwig, Andrea Caprara, Michele Wayne Winz, Sergei Govorkov
  • Patent number: 9870740
    Abstract: A liquid crystal display panel comprises a backlight unit including an optical assembly and configured to differentiate the liquid crystal display panel into a plurality of blocks and to illuminate light to each of the plurality of blocks; a location sensor configured to sense a location of a user watching the liquid crystal display panel; a backlight controller configured to output a dimming value corresponding to a brightness of each of the plurality of blocks according to a result of sensing by the location sensor; and a backlight driver configured to generate a driving current corresponding to the dimming value of each block and to provide the generated driving current to the backlight unit corresponding to each of the plurality of blocks.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: January 16, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Se-Ki Park, Yong-Hoon Kwon, Bong-Hyun You, Joon-Chul Goh
  • Patent number: 9740006
    Abstract: Optical systems such as image display systems include a freeform optical waveguide prism and a freeform compensation lens spaced therefrom by a gap of air or index cement. The compensation lens corrects for aberrations which the optical waveguide prism will introduce in light or images from an ambient real-world environment. The optical waveguide prism receives actively projected images at an entry location, and emits the projected images at an exit location after internally reflecting the images along an optical path therein. The image display system may include an image source and coupling optics. The approach permits design of an optical viewing device, for example in optical see-through HMDs, achieving an eyeglass-form appearance and a wide see-through field of view (FOV).
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: August 22, 2017
    Assignee: MAGIC LEAP, INC.
    Inventor: Chunyu Gao
  • Patent number: 9709784
    Abstract: Described is an optical element and a device for generating an optical line pattern. The optical element and a device having such an optical element comprise a first optical surface and a second optical surface which comprises a plurality of cylinder-shaped partial areas which extend along a first direction (X) and are stacked along a second direction (Y). The second direction (Y) extends vertically to the first direction (X), and an optical axis (Z) extends vertically to the first direction (X) and vertically to the second direction (Y), where at least 60% of the surface of the cylinder-shaped partial areas is oriented in such a way that a normal vector arranged on the surface extends to a side facing away from the optical axis (Z) and to a side facing away from the first optical surface.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: July 18, 2017
    Assignee: Jabil Optics Germany GmbH
    Inventor: Eberhard Piehler
  • Patent number: 9575310
    Abstract: An optical system for an endoscope includes an objective lens, a relay lens arrangement, and a correction optical system disposed in an optical path on a proximal end side of the objective lens. The correction optical system corrects curvature of field caused by the relay lens arrangement. In the optical system for an endoscope, the correction optical system includes at least one concave mirror having an aspherical surface.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: February 21, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masayuki Suzuki
  • Patent number: 9496675
    Abstract: Systems and methods that accept the emitted radiant power from such a combined diode laser structure (laser bar stack) and efficiently direct essentially all of it into the pump cladding of a double-clad fiber amplifier, such that the radiant power will then be absorbed by a rare-earth doped core in the active fiber.
    Type: Grant
    Filed: July 7, 2014
    Date of Patent: November 15, 2016
    Assignee: Science Research Laboratory, Inc.
    Inventors: William T. Plummer, Aland K. Chin
  • Patent number: 9450208
    Abstract: An organic electroluminescence display device according to the invention includes a TFT substrate, a retroreflective body formed on the TFT substrate so as to correspond to each of pixels, a plurality of organic electroluminescence elements formed on the retroreflective bodies so as to correspond to the pixels, and a pixel separation film adapted to section the pixels, and the pixel separation film is formed in an area corresponding to an area between a boundary between the pixels adjacent to each other and an outer periphery of the retroreflective body.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: September 20, 2016
    Assignee: JAPAN DISPLAY INC.
    Inventor: Toshihiro Sato
  • Patent number: 9411239
    Abstract: An illumination optical unit for EUV projection lithography has a first and second facet mirrors, each with a plurality of reflecting facets on a support. The facets of the first facet mirror can be switched between various tilt positions. In each tilt position, the tiltable first facet is assigned to a second facet of the second facet mirror for deflecting EUV radiation in the direction of this second facet. Each of the first facets is assigned to a set of second facets by its tilt positions. The two facet mirrors are arranged so that an arrangement distribution of second facets, impinged upon via the first facets, results in an illumination-angle distribution of an illumination of an illumination field.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: August 9, 2016
    Assignee: Carl Zeiss SMT GmbH
    Inventor: Thomas Fischer
  • Patent number: 9336627
    Abstract: Generating a scanned-surface model representing a scanned surface includes various steps. For example, instrument model coordinates may be obtained that represent a position of the instrument in the 3D model. In addition, surface-distance measurements may be derived describing a distance from the scanned surface. Inertial measurements are also recorded. The instrument model coordinates, surface-distance measurements, and inertial measurements are correlated and filtered by a rules based selection process to determine scanned-surface model coordinates.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: May 10, 2016
    Assignee: HNTB HOLDINGS LTD.
    Inventors: Paul James Digiacobbe, Christopher Michael Siebern
  • Patent number: 9297996
    Abstract: In embodiments of laser illumination scanning, an imaging unit includes a linear array of spatial light modulators that direct light in a direction perpendicular to an imaging scan direction. The lasers each emit the light through a diffractive optic that uniformly illuminates the spatial light modulators, and a scanning mirror then scans the spatial light modulators to generate a two-dimensional image for display. The lasers can include red, green, and blue lasers for RGB illumination of the spatial light modulators, which can be implemented as reflective liquid crystal on silicon (LCOS), transmissive LCOS, or as micro-electro-mechanical systems (MEMS) mirrors.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: March 29, 2016
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: David D. Bohn, Rod G. Fleck
  • Patent number: 9077881
    Abstract: Disclosed herein is a camera module herein. The camera module includes a case; a bracket that is installed in the case, wherein an elastic element is interposed between the bracket and the case, and the bracket is elastically supported in the case by the elastic element; a substrate coupled to a lower portion of the bracket; an image sensor installed on the printed circuit board, wherein an upper portion of the image sensor is inserted into the bracket; and a focusing and tilt adjuster that is coupled through a bottom surface of the case, wherein a front end portion of the focusing and tilt adjuster contacts the substrate.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: July 7, 2015
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventor: Jae Hoon Lee
  • Patent number: 9057676
    Abstract: A microfluidic multiple channel particle analysis system (1) which allows particles (2) from a plurality of particle sources (3) to be independently simultaneously entrained in a corresponding plurality of fluid streams (4) for analysis and sorting into particle subpopulations (5) based upon one or more particle characteristics (6).
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: June 16, 2015
    Assignee: CYTONOME/ST, LLC
    Inventors: Johnathan Charles Sharpe, Emanuel Tito Mendes Machado, Blair Morad, Rudolf Hulspas, Donald Francis Perrault, Jr.
  • Publication number: 20150146297
    Abstract: An aspect of the invention provides a security device including an array of printed lenses arranged on a first surface of a substrate and a microimage array underlying the array of printed lenses, whereby a synthetic image of portions of the microimages is generated by the lenses. The security device further comprises at least one tactile element arranged on the first surface of the substrate which is of greater or lesser height than the printed lenses, the at least one tactile element being registered to the array of printed lenses.
    Type: Application
    Filed: May 8, 2013
    Publication date: May 28, 2015
    Inventors: Lawrence George Commander, Matthew Sugdon, Stephen Banister Green
  • Patent number: 9030747
    Abstract: An image display apparatus includes a plurality of display elements each configured to display an original image, and an observation optical system configured to introduce light fluxes from the plurality of display elements to an exit pupil via a plurality of optical units, and to present a combined image. When a decentering section of each optical unit is defined as a section formed by a principal ray of the light flux introduced to the same image point in the combined image when the principal ray is reflected, the plurality of optical units are arranged so that decentering sections of the plurality of optical units are parallel. The plurality of display elements includes two neighboring display elements, and display planes of the two display elements partially display the same image.
    Type: Grant
    Filed: August 27, 2012
    Date of Patent: May 12, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masakazu Tohara, Kazutaka Inoguchi
  • Patent number: 9020641
    Abstract: Disclosed herein are an obstacle sensing module and a cleaning robot including the same. The cleaning robot includes a body, a driver to drive the body, an obstacle sensing module to sense an obstacle present around the body, and a control unit to control the driver, based on sensed results of the obstacle sensing module. The obstacle sensing module includes at least one light emitter including a light source, and a wide-angle lens to refract or reflect light from the light source so as to diffuse the incident light in the form of planar light, and a light receiver including a reflection mirror to again reflect reflection light reflected by the obstacle so as to generate reflection light, an optical lens spaced from the reflection mirror by a predetermined distance, to allow the reflection light to pass through the optical lens, and an image sensor, and an image processing circuit.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: April 28, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yeon Kyu Jeong, Dong Won Kim, Jea Yun So, Sang Sik Yoon, Gwang Jin Jung, Joon Hyung Kwon
  • Patent number: 9001426
    Abstract: A device forms laser radiation which has partial beams interspaced in a first direction that is perpendicular to the direction of propagation of the laser radiation, especially for forming laser radiation which is emitted by a laser diode bar. The device contains a plurality of reflective surfaces on which at least one of the interspaced partial beams can be reflected in such a manner that the distances of the partial beams are smaller relative to each other after reflection than before reflection.
    Type: Grant
    Filed: January 21, 2010
    Date of Patent: April 7, 2015
    Assignee: LIMO Patentverwaltung GmbH & Co. KG
    Inventor: Udo Fornahl
  • Patent number: 8941800
    Abstract: A reflective imaging element includes: a plurality of holes penetrating through the plate-like substrate along a thickness direction thereof; two orthogonally-disposed specular elements on inner walls of the plurality of holes; a first principal face on which light from an object is received; a second principal face parallel to the first principal face; and two taper elements opposing the two specular elements. The two taper elements each have a first side parallel to the first principal face, a second side orthogonal to the first principal face and to the first side, and a hypotenuse meeting the first and second sides and constituting an angle ? with the second side. An angle constituted by a normal direction of the first principal face and an incident direction of light striking the first principal face defines an incident angle ?, such that, in a range of 0°<?<90°, the angle ? satisfies (90°??)/4??.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: January 27, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kentarou Imamura, Shigeto Yoshida, Takafumi Shimatani
  • Patent number: 8922895
    Abstract: An optical film or other optical body has a structured surface comprising Fresnel prisms. The Fresnel prisms define a complex topography. For example, a first and second Fresnel prism may have elongated first and second plan view shapes that form a “wye” (Y-shaped) feature. Alternatively or in addition, the Fresnel prisms may be arranged such that slopes of the Fresnel prisms define one or more saddle points. Furthermore, one or more of the Fresnel prisms may have prism shapes in plan view that include undulating portions, and the Fresnel prisms may be arranged in a slope sequence that defines one or more inflection points. The Fresnel prisms may be refractive or reflective, and they may provide the structured surface with a 3-dimensional appearance.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: December 30, 2014
    Assignee: 3M Innovative Properties Company
    Inventor: Michael F. Weber
  • Publication number: 20140376091
    Abstract: An optionally transferable optical system with a reduced thickness is provided. The inventive optical system is basically made up of a synthetic image presentation system in which one or more arrangements of structured image icons are substantially in contact with, but not completely embedded within, one or more arrangements of focusing elements. The focusing element and image icon arrangements cooperate to form at least one synthetic image. By way of the subject invention, the requirement for an optical spacer to provide the necessary focal distance between the focusing elements and their associated image icon(s) is removed. As a result, overall system thicknesses are reduced, suitability as a surface-applied authentication system is enabled, and tamper resistance is improved.
    Type: Application
    Filed: August 17, 2012
    Publication date: December 25, 2014
    Applicant: VISUAL PHYSICS, LLC
    Inventors: Gregory R. Jordan, Samuel M. Cape, Scott K. Palm, Jonathan D. Gosnell, Caroline B. Kennedy
  • Publication number: 20140368920
    Abstract: Micro-mirror arrays configured for use in a variable focal length lens are described herein. An example variable focal length lens comprises a micro-mirror array having a plurality of micro-mirror element arranged in at least a first section and a second section. Each micro-mirror element has a tilt axis and comprises, on each of two opposing sides of the tilt axis, (i) at least one actuation electrode, (ii) at least one measurement electrode, and (iii) at least one stopper. Additionally, each micro-mirror element in the first section has a first tilt axis range, and each micro-mirror element in the second section has a second tilt axis range, with the first tilt axis range being less than the second tilt axis range.
    Type: Application
    Filed: January 18, 2013
    Publication date: December 18, 2014
    Applicant: IMEC VZW
    Inventors: Murali Jayapala, Geert Van der Plas, Veronique Rochus, Xavier Rottenberg, Simone Severi
  • Publication number: 20140353959
    Abstract: A security element for manufacturing value documents, such as banknotes, checks or the like, has an upper side making available several micro images, in particular for a lens magnification arrangement. Each micro image is formed by a micro cavity structure having a multitude of micro cavities disposed side by side, the micro cavities have an extension of 0.5 to 3 ?m respectively in a spatial direction disposed parallel to the upper side. The micro cavity structure is optically reflective or highly refractive on its surface, so that on the surface at least partial reflection takes place, and for each micro image micro cavities of at least a first and a second type are present, which differ by an aspect ratio of the micro cavities, whereby each micro image is structured by the at least two different types of micro cavities.
    Type: Application
    Filed: December 19, 2012
    Publication date: December 4, 2014
    Inventor: Hans Lochbihler
  • Patent number: 8867136
    Abstract: A floating image display device includes an object, and a light reflecting optical member for reflecting displayed light from the object to a viewer. The light reflecting optical member comprises a structure in which micro mirror units each having first and second light reflecting sides are arranged in matrix. The light reflecting optical member reflects the displayed light by the first and second light reflecting sides at two times to form a mirror image. The light reflecting optical member comprises a first assembly and a second assembly. Each of the first and second assemblies is constructed by arranging a plurality of longitudinal members each having one light reflecting side such that all of the light reflecting sides are oriented in a same direction. The first assembly and the second assembly are laminated onto each other with the light reflecting sides of the first assembly and the light reflecting surfaces of the second assembly intersecting with each other.
    Type: Grant
    Filed: April 28, 2009
    Date of Patent: October 21, 2014
    Assignee: Pioneer Corporation
    Inventor: Hirokazu Hashikawa
  • Publication number: 20140261683
    Abstract: Optics are provided for use in solar concentrators, the optics having a light guide, a redirecting layer including a plurality of lenses, and a plurality of reflector elements. Sunlight is received by the redirecting lenses, which focus the sunlight onto reflective surfaces of the reflector elements. The reflective surface of each reflector element redirects the light into the light guide, which guides the light toward a solar energy collector, such as a photovoltaic cell. The light from the light guide may be directed onto the solar energy collector by a light conditioning element.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: Morgan Solar Inc.
    Inventors: John Paul MORGAN, Michael SINCLAIR, Nigel MORRIS, Pascal DUFOUR
  • Publication number: 20140247499
    Abstract: A security element for integration into documents for authentication thereof. The security element comprises a substrate. A reflective optical structure and a reference pattern are disposed on the same side of the substrate. The reflective optical structure is made up of an array of Fresnel lenses. The reference pattern appears in the foreground when observed by an observer. A virtual image of the observer appears in the background behind the foreground pattern.
    Type: Application
    Filed: March 3, 2014
    Publication date: September 4, 2014
    Inventors: Pierre Doublet, Michel Camus
  • Publication number: 20140198368
    Abstract: A transparent screen includes a microlens array. The microlens array includes microlenses that are individually rotated to reflect a projected image to a common eyebox. The microlenses may have a dichroic coating to reflect narrowband light. An automotive windshield may include an embedded microlens array as part of a head up display. Eyewear includes an eyepiece with a rotated microlens array and a projector to project content on the microlens array.
    Type: Application
    Filed: January 17, 2013
    Publication date: July 17, 2014
    Inventors: Hakan Urey, Mehmet Kivanc Hedili, Joshua O. Miller
  • Patent number: 8773615
    Abstract: In a liquid crystal device, a liquid crystal layer is interposed between first and second substrates. The liquid crystal device includes a light-shielding layer formed in a lattice shape and a condensing lens condensing light incident on the side of the first substrate into the inside of an opening portion of a light-shielding section. In the second substrate, a prism element condensing the light which has been incident from the side of the first substrate and has passed and spread through the condensing lens, the liquid crystal layer, and the opening portion is disposed at a position overlapping the light-shielding layer in a plan view. The prism element includes a groove formed in the second substrate.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: July 8, 2014
    Assignee: Seiko Epson Corporation
    Inventor: Norihiko Ozawa
  • Publication number: 20140160575
    Abstract: The present invention provides an optical surface which is able to mix different wavelengths into a light pattern which contains all wavelengths evenly distributed across the pattern. The novel optical surface extends in at least two Cartesian base dimensions (X, Y), whereby a cross-section of the surface taken in either of said two Cartesian base dimensions (X, Y) features a first plurality of protuberances which extend to the same direction in a third Cartesian dimension (Z). The cross-section of the optical surface also features a second plurality of protuberances which extend to the opposite direction as the first plurality of protuberances in the third Cartesian dimension (Z). The pluralities of protuberances form converging and diverging optical shapes for mixing different wavelengths scattering from the optical surface.
    Type: Application
    Filed: March 11, 2013
    Publication date: June 12, 2014
    Applicant: LEDIL OY
    Inventor: Hannu Hukkanen
  • Patent number: 8724224
    Abstract: A display device includes a dihedral corner reflector array optical element composed of a substrate and a plurality of dihedral corner reflectors arranged regularly on one main surface of the substrate, the dihedral corner reflectors including orthogonal mirror planes perpendicular to each other and being perpendicular to the main surface of the substrate; and an object existing by the one surface of the substrate, the optical element forming a real image of the object by the other main surface of the substrate. The optical element includes a plurality of protrudent bodies integrally formed of a transparent material of the substrate, each of the protrudent bodies including two sides of orthogonal mirror planes perpendicular to each other as the dihedral corner reflector perpendicular to the main surface of the substrate. The optical element is disposed so that the protrudent bodies face toward a space in which the object exists.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: May 13, 2014
    Assignees: Stanley Electric Co., Ltd., National Institute of Information and Communications Technology
    Inventors: Takashi Sugiyama, Satoshi Maekawa
  • Patent number: 8724082
    Abstract: A semiconductor laser driver includes a light detection circuit to detect a quantity of light as a detected light emission intensity and output the detected light emission intensity to the control circuit, and a control circuit to control a light emission intensity for the semiconductor laser based on the detected light emission intensity and on a predetermined light emission intensity setting value. The light detection circuit includes a photoelectric conversion element to convert the quantity of light emitted from the semiconductor laser into an electrical current and output the converted electrical current, a current magnification setting circuit to amplify the electrical current output from the photoelectric conversion element to a predetermined amplified current at one of multiple different predetermined magnifications, a detection resistor to convert the amplified current output from the current magnification setting circuit into a voltage and output the voltage as the detected light emission intensity.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: May 13, 2014
    Assignee: Ricoh Company, Ltd.
    Inventor: Hiroaki Kyogoku
  • Publication number: 20140049830
    Abstract: An arrangement for shaping laser radiation with mutually spaced-apart parallel sub-beams in a first direction perpendicular to a propagation direction of laser radiation, including a first substrate with several reflective surfaces on which the sub-beams reflects, and a second substrate with several reflective surfaces and being offset relative to the first substrate, so that the sub-beams reflected by the reflective surfaces of the first substrate reflects by the reflective surfaces of the second substrate, wherein the reflective surfaces of the first substrate and the reflective surfaces of the second substrate are arranged and configured such that the sub-beams of the laser radiation to be shaped can be reflected in such a way that they have after the reflection on the reflective surfaces of the second substrate in the first direction a smaller spacing from one another than before the reflection on the reflective surfaces of the first substrate.
    Type: Application
    Filed: August 13, 2013
    Publication date: February 20, 2014
    Applicant: LIMO Patentverwaltung GmbH & Co. KG
    Inventor: Detlef STOEHR
  • Patent number: 8649111
    Abstract: The present invention provides an optical element, comprising: a side surface where incident light undergoes diffuse reflection inside the optical element, between the outline of a top optical surface and a bottom optical surface; and an inclined surface for total reflection of diffuse reflection from the side surface, formed at least between the side surface and the bottom optical surface.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: February 11, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yuji Yano, Hideyuki Kurimoto, Shohgo Hirooka
  • Patent number: 8641239
    Abstract: A lighting assembly utilizing a reflective body for use with a light source to uniformly disperse the light from the light source. The reflective body includes a lower array of first reflectors arranged about a central axis. Each of the first reflectors form an obtuse angle with the next adjacent first reflector. The reflective body also includes an upper array of second reflectors arranged about the central axis. Each of said second reflectors include a left face and a right face. The upper array defines obtuse angles between next adjacent second reflectors. Additionally, reflex angles are defined between the left and right faces of the second reflectors. The combination of angles evenly disperse the light supplied from the light source to provide a pleasant glow for illuminating an area below the lighting assembly without causing hot spots.
    Type: Grant
    Filed: January 8, 2010
    Date of Patent: February 4, 2014
    Assignee: Best Lights, Inc.
    Inventor: Gary D. Yurich
  • Patent number: 8638511
    Abstract: A reflector array optical device includes two dihedral corner reflector array optical elements each having a substrate and a plurality of prism bodies arranged regularly on and each protruding from one main surface of the substrate. Each prism body includes at least two sides of orthogonal planes. The two optical elements are adhered so that top faces of the prism bodies are directly confronted respectively so as to make two coplanar planes in which the two orthogonal planes exist respectively.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: January 28, 2014
    Assignees: National Institute of Information and Communications Technology, Stanley Electric Co., Ltd.
    Inventors: Satoshi Maekawa, Markon Sandor, Takashi Sugiyama
  • Publication number: 20140022327
    Abstract: An imaging system includes an incidence face having a plurality of optical faces formed along a first axis with a first pitch; a prism face having a plurality of grooves formed along the first axis with a second pitch; and an exit face having a plurality of optical faces formed along the first axis with a third pitch. A virtual plane extends from an end of the one optical face of the incidence face to an end of the one optical face of the exit face. Among light flux emitting from a spot light source and entering the one optical face of the incidence face, a light beam that passes over the virtual plane is reflected at the prism face, and passes over the virtual plane again and goes to the one optical face of the exit face.
    Type: Application
    Filed: June 25, 2013
    Publication date: January 23, 2014
    Inventor: Shigeaki IMAI
  • Publication number: 20130335827
    Abstract: An optics arrangement includes a multi-channel imaging system for optical sampling of an object plane in visual fields, abutting or overlapping in the object plane, of a plurality of optical channels of the multi-channel imaging system, and a waveguide arranged between the object plane and the multi-channel imaging system so as to guide light in the waveguide laterally, the waveguide having a plurality of redirecting structures arranged on a side of the waveguide facing the object plane and/or a side of the waveguide facing the multi-channel imaging system, the redirecting structures being arranged in dead zones between the visual fields of the optical channels, and the redirecting structures being configured to deflect the guided light in the direction of the object plane such that the object plane is illuminated.
    Type: Application
    Filed: August 16, 2013
    Publication date: December 19, 2013
    Inventors: Andreas BRUECKNER, Rene BERLICH, Andreas BRAEUER
  • Patent number: 8605046
    Abstract: A touch panel method and system detects one or more touch objects placed on a surface of a touch panel and assigns consistent ID, position, size and convex contour to each touch object. The method and system allows multiple simultaneous touch objects on the touch panel to be distinguished. The touch panel includes on its periphery at least one light transmitter and at least one light sensor, each positioned around at least a portion of a perimeter of the touch panel. A processor in communication with the at least one light sensor acquires light intensity data from the sensor(s), wherein any one or more touch objects placed within a touch detectable region of the panel interrupts at least a subset of light paths between transmitter and sensor. Based on the interrupted light paths, the processor generates a touch input vector (assigned ID and spatial properties) that represents the placement of each touch object on the touch panel.
    Type: Grant
    Filed: October 22, 2010
    Date of Patent: December 10, 2013
    Assignee: PQ Labs, Inc.
    Inventor: Fei Lu
  • Publication number: 20130314797
    Abstract: According to one embodiment, the imaging device array in an embodiment has plural imaging devices formed integrally, imaging the light that is output from the exit surface imaged at the image point including an incidence surface for the incidence of light, plural reflective surfaces including four reflective surfaces for reflecting the light from the incidence surface, and an exit surface that outputs light that has gone through the plural reflective surfaces, in which the plural imaging devices are arranged as an array, and a surface for ameliorating the propagation of light other than the light reflected from the reflective surfaces to the exit surface is formed on the periphery of at least one reflective surface among the plural reflective surfaces.
    Type: Application
    Filed: May 23, 2013
    Publication date: November 28, 2013
    Applicant: Toshiba Tec Kabushiki Kaisha
    Inventor: Takashi SHIRAISHI
  • Publication number: 20130250427
    Abstract: An autostereoscopic three-dimensional image display device including a first light guide plate having a first surface and a second surface, the second surface being provided with a first prism changing a path of light input from a first light source on a side of the first light guide plate toward the first surface; a second light guide plate having a third surface and a fourth surface, the fourth surface being provided with a second prism changing a path of light from a second light source on a side of the second light guide plate toward the third surface; a barrier film between the first and second light guide plates and interrupting part of light from the first light guide plate; and a lenticular film above the third surface of the second light guide plate and refracting a path of light input from the second light guide plate.
    Type: Application
    Filed: May 22, 2013
    Publication date: September 26, 2013
    Inventors: Eun Gon LEE, Dong Ho WEE
  • Publication number: 20130242401
    Abstract: As a result of a fourth surface being a surface on a gate side, a merging position of a molten resin material during molding of a lens array main body is placed away from formation positions of lens faces, and as a result of the three dimensional shape of a third recessing section, during molding of the lens array main body, the flow of molten resin material from a surface side that opposes the fourth surface into a flow path corresponding with an area between a first recessing section and a second recessing section can be suppressed.
    Type: Application
    Filed: December 8, 2011
    Publication date: September 19, 2013
    Inventors: Kazutaka Shibuya, Tadanobu NIIMI
  • Patent number: 8514260
    Abstract: A video-conferencing system includes a display panel configured to form a display image for viewing by a local video conferencer, a camera configured to acquire a facial image of the local video conferencer and having an aperture oriented toward the display panel, and an array of partly reflective facets aligned in parallel against a plane disposed parallel to and forward of the display panel, each facet positioned to transmit a portion of the display image from the display panel through that facet to the local video conferencer, and to reflect a portion of the facial image of the local video conferencer to the aperture.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: August 20, 2013
    Assignee: Microsoft Corporation
    Inventors: Timothy Andrew Large, Daniel Rosenfeld, Neil Emerton
  • Patent number: 8503760
    Abstract: Provided are a system and method for real-time object recognition and pose estimation using in-situ monitoring.
    Type: Grant
    Filed: February 15, 2008
    Date of Patent: August 6, 2013
    Assignee: Sungkyunkwan University Foundation for Corporate Collaboration
    Inventors: Sukhan Lee, Seung-Min Baek, Jeihun Lee, Jangwon Lee
  • Publication number: 20130188257
    Abstract: Example embodiments relate to a micro lens and a method of manufacturing the micro lens. The micro lens may include a substrate and an internal lens region existing in the substrate. The internal lens region may have a refractive index that is different from a refractive index of the substrate. The internal lens region may include at least one boundary contacting the substrate and formed as a curve. As a result, light incident in the substrate through a surface of the substrate is converged or diverged by the curve.
    Type: Application
    Filed: July 17, 2012
    Publication date: July 25, 2013
    Inventors: Seong-ho Cho, Young-soo Park