Cylindrical Patents (Class 359/710)
  • Patent number: 10436953
    Abstract: An arched, cylindrical Fresnel lens is designed to collimate an optical beam in one plane while allowing the beam to propagate in the orthogonal plane with minimal reflection and efficient transmission. The lens comprises a thin lens body that arches about a vertical axis to yield a hollow cylindrical shape. The lens can comprise refractive areas on one or both of its outward-facing surface or inward-facing surface, the refractive areas comprising a series of parallel angled grooves etched into the lens' substrate. The lens can also be realized by a gradient change of the refractive index in the bulk of the lens material, or can comprise diffractive gratings comprising parallel binary structures. The lens may also comprise a holographic imprint on one of its surface or its bulk, thereby attributing diffractive optical power.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: October 8, 2019
    Assignee: Rockwell Automation Technologies Inc.
    Inventor: Michael M. Tilleman
  • Patent number: 10132464
    Abstract: A light output apparatus includes a light source that emits light shoving different light orientation distributions in a first direction and a second direction and having a high optical intensity area larger in the first direction than in the second direction, a collimator lens that parallelizes the light emitted from the light source, and a Powell lens that spreads the parallelized light from the collimator lens in the first direction, maintains the parallelized direction provided by the collimator lens in the second direction, and outputs the resultant light along a third direction that is perpendicular to the first and second directions and serves as a central axis.
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: November 20, 2018
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Toshihiko Sakai, Noriyuki Hirano
  • Patent number: 10024517
    Abstract: A lens member includes a light-incident side; a light-exit side that is opposite to the light-incident side, a Fresnel lens arranged on a center axis that passes through a center of the light-incident side, and a diffraction grating structure arranged around a periphery of the Fresnel lens and having a center through which the center axis passes. Also, it is disclosed that the Fresnel lens may include a first Fresnel lens and a second Fresnel lens, the first Fresnel lens includes annular prisms that are divided from a convex lens and having a center through which the center axis of the light-incident side passes, and the second Fresnel lens includes annular prisms that are divided from a TIR lens and arranged around the periphery of the first Fresnel lens, centering around the center axis of the light-incident side.
    Type: Grant
    Filed: August 13, 2012
    Date of Patent: July 17, 2018
    Assignees: CITIZEN ELECTRONICS CO., LTD., CITIZEN WATCH CO., LTD.
    Inventors: Junji Miyashita, Yasuaki Kayanuma, Kenji Matsumoto
  • Patent number: 9719657
    Abstract: An optical warning system comprises a light head that includes a light source emitting light rays from a light-emitting area. The light rays propagate through an optical diffuser to provide a visual warning signal to an observer remotely located from the optical warning system. A Fresnel optic array positioned between the optical diffuser and the light-emitting area is spaced apart from and spatially aligned with the light-emitting area to receive the light rays emitted from the light-emitting area and form a collimated light beam. The Fresnel optic array is fabricated so that it exhibits increased optical transmission efficiency by reducing light lost to scattering in forming the collimated light beam.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: August 1, 2017
    Assignee: Hazard Systems Pty Ltd.
    Inventors: Scott McKendry, Carl George
  • Patent number: 9664982
    Abstract: An optical system driving device includes a movable body that is movable in at least three degrees of freedom, and a light transmissive unit integrally mounted to the movable body. The optical system driving device also includes a driving unit that moves the movable body in at least three degrees of freedom, and a detection unit that detects a position of the movable body in each of at least three degrees of freedom. The detection unit includes a light-emitting unit that emits light toward the light transmissive unit, and an optical detector that receives light emitted from the light-emitting unit and passing through the light transmissive unit and outputs a light-receiving signal based on the received light. The detection unit also detects a position of the movable body in each of at least three degrees of freedom based on the light-receiving signal from the optical detector.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: May 30, 2017
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventor: Hironori Honsho
  • Patent number: 9474447
    Abstract: A surgical probe can include an outer cannula; an inner cannula, rotatably disposed inside the outer cannula; a rotational scanner, disposed at an end of the inner cannula and configured to receive a light beam from a delivery fiber and to scan the light beam along a loop; and an anamorphic optical element, disposed at an end of the outer cannula and configured to receive the light beam scanned along the loop and to output the light beam along an anisotropically compressed loop. A corresponding method can include providing a light beam by a light source; coupling the light beam to a rotational scanner at an end of an inner cannula; scanning the light beam by the rotational scanner along a loop; and receiving the light beam scanned along the loop by an anamorphic optical element and outputting the light beam along an anisotropically compressed loop to a target.
    Type: Grant
    Filed: March 21, 2013
    Date of Patent: October 25, 2016
    Assignee: NOVARTIS AG
    Inventors: Edouard G. Schmidtlin, Tammo Heeren
  • Patent number: 9401103
    Abstract: An LED light source for use in LED lighting fixtures, the LED light source comprising a submount including an LED-populated area which has an aspect ratio greater than 1, an array of LEDs on the LED-populated area, and a lens on the submount over the LED-populated area. Various embodiments facilitating preferential-side lighting, such as for roadway uses, are also disclosed.
    Type: Grant
    Filed: April 6, 2012
    Date of Patent: July 26, 2016
    Assignee: Cree, Inc.
    Inventors: Kurt S. Wilcox, Bernd Keller, Ted Lowes, Peter S. Andrews
  • Patent number: 9017316
    Abstract: A system and method of estimating a distance between the distal end of an optical fiber and treated tissue, to improve treatment efficiency, is provided herein. The estimation is achieved by modulating the numerical aperture of a light beam transmitted through the fiber to receive reflections from the tissue and distinguish them from other reflections in the fiber, and further by calculating the distance by comparing reflection intensities of beams having different numerical aperture values that illuminate the tissue over a very short period, so that tissue and environment conditions do not change much. Distance estimation may be carried out by modulating the treatment beam itself, or by a light beam transmitted between pulses of a pulsed treatment beam.
    Type: Grant
    Filed: July 25, 2011
    Date of Patent: April 28, 2015
    Assignee: Lumenis Ltd.
    Inventors: Arkady Khatchaturov, Uri Voitsechov, Igal Koifman
  • Patent number: 8964281
    Abstract: An optical probe includes a laser light source that emits laser light, a collimator lens that converts the laser light into parallel light, a light shape changing section that converts the parallel light into linear laser light, an irradiating section to irradiate an object with a selected part of the linear laser light, an image pickup section that picks up an image of the object based on the laser light reflected from the object, and a controller that controls irradiation of the linear laser light. The linear laser light is composed of a plurality of parts including one end part and the other end part; and the irradiating section irradiates the object with the parts of the linear laser light sequentially from the one end part to the other end part.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: February 24, 2015
    Assignee: Mitutoyo Corporation
    Inventors: Masaoki Yamagata, Kentaro Nemoto
  • Patent number: 8908256
    Abstract: An optical probe includes a laser light source that emits laser light, a collimator lens that converts the laser light into parallel light, a light shape changing section that converts the parallel light into linear laser light, an irradiating section to irradiate an object with a selected part of the linear laser light, an image pickup section that picks up an image of the object based on the laser light reflected from the object, and a controller that controls irradiation of the linear laser light. The linear laser light is composed of a plurality of parts including one end part and the other end part; and the irradiating section irradiates the object with the parts of the linear laser light sequentially from the one end part to the other end part.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: December 9, 2014
    Assignee: Mitutoyo Corporation
    Inventors: Masaoki Yamagata, Kentaro Nemoto
  • Publication number: 20140347744
    Abstract: A member having an arbitrary shape having a closed curve can be easily subjected to laser processing within a short time. A lens and a laser processing apparatus equipped with the lens are for cutting a material to be cut into a member having an arbitrary shape having a closed curve and include a convex cylindrical lens which is molded to have a closed path so that a line that connects vertices of a cylindrical surface of the convex cylindrical lens has the same form as the arbitrary shape having the closed curve.
    Type: Application
    Filed: May 9, 2012
    Publication date: November 27, 2014
    Applicant: V-TECHNOLOGY CO., LTD.
    Inventors: Kouichi Kajiyama, Makoto Hatanaka
  • Publication number: 20140340743
    Abstract: A rod lens that includes a rod-shaped lens unit made of a rod-shaped lens element or a plurality of lens elements cemented to one another, wherein, on the circumferential face thereof, the lens unit includes at least one axially magnetized magnet arrangement. The invention also relates to an endoscope with a lens arrangement, which includes at least a first and, arranged adjacent to the first, a second rod lens, and to a method for assembling such an endoscope.
    Type: Application
    Filed: May 16, 2014
    Publication date: November 20, 2014
    Inventor: Walter Vogel
  • Publication number: 20140264097
    Abstract: In some aspects, a flow cytometer system is provided that includes beam shaping optics positioned to manipulate a light beam and produce a resulting light beam that irradiates the core stream at the interrogation zone of the flow cell. The beam shaping optics include an acylindrical lens positioned to receive and focus light in a direction of a first axis orthogonal to a direction of light travel, and a cylindrical lens positioned to receive the light output from the acylindrical lens and to focus the light output from the acylindrical lens in a direction of a second axis orthogonal to the first axis and to the direction of light travel. The resulting light beam output has a flat-top shaped intensity profile along the first axis, and a Gaussian-shaped intensity profile along the second axis. Related methods of shaping a light beam at an interrogation zone of a flow cell are also provided.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Inventors: John F. Heanue, Stuart L. Friedman
  • Publication number: 20130139867
    Abstract: A condensing lens, compound-eye lens condenser, and compound-eye concentrating-type solar cell assembly. The condensing lens is a convex lens that can reflect mutually parallel incident lights (3) onto a receiving surface (4) on the outer side of the lens and thus form spots. If the vertical distance from the contact point of any incident lights (3) contacting the lens to a light axis (103) of the lens is x, the vertical distance between a projection point formed from the incident light (3) reflecting onto the receiving surface (4) and the center of the spot is m, the radius of the lens is a, and the radius of the spot is b, then the lens meets the following condition: x/m=a/b. The condensing lens has a high transmission rate, and the energy distribution of the spots is more even after condensing, the transmission rate is 90% to 93%, and the energy distribution curve of the spots transmitted through the condensing lens is similar to saddle-shaped.
    Type: Application
    Filed: August 15, 2011
    Publication date: June 6, 2013
    Applicant: Chengdu ZSUN Science and Technology Developing Co. Ltd.
    Inventor: Zhong Huang
  • Patent number: 8389927
    Abstract: An optical arrangement has a laser configured to emit a laser beam, an amplitude mask and a focusing element. The amplitude mask is disposed between the laser and the focusing element in a path of the laser beam such that the laser beam hits the amplitude mask before being modified by the focusing element so as to direct the laser beam to a focal point within a photosensitive material.
    Type: Grant
    Filed: June 12, 2008
    Date of Patent: March 5, 2013
    Assignee: Karlsruher Institut Fuer Technologie
    Inventors: Alexandra Ledermann, Georg Von Freymann, Martin Wegener
  • Patent number: 8335042
    Abstract: An optical-deflection accelerating device is provided. The device comprises an incident light source for generating an incident light-beam with a deflection speed, an emergent-light capturing device for capturing an emergent light-beam, and a reflective device which is a curved-surface reflective mirror for reflecting the incident light-beam to the emergent-light capturing device. When the incident light-beam enters to a reflective point on the curved-surface reflective mirror in sequence, an incident angle and a reflective angle are altered with locations of the reflective point on the curved-surface reflective mirror, and are increased with an increased curvature of the reflective point. When the incident light-beam is deflected with a tiny initial deflection angle, the reflective light-beam is deflected therewith and the deflection angle is enlarged. The curvature of the curved-surface reflective mirror can be adjusted to obtain different accelerated deflections.
    Type: Grant
    Filed: December 30, 2009
    Date of Patent: December 18, 2012
    Assignee: Shenzhen University
    Inventors: Jingzhen Li, Qingyeng Wu
  • Patent number: 8320056
    Abstract: A spatial filter includes a first filter element and a second filter element overlapping with the first filter element. The first filter element includes a first pair of cylindrical lenses separated by a first distance. Each of the first pair of cylindrical lenses has a first focal length. The first filter element also includes a first slit filter positioned between the first pair of cylindrical lenses. The second filter element includes a second pair of cylindrical lenses separated by a second distance. Each of the second pair of cylindrical lenses has a second focal length. The second filter element also includes a second slit filter positioned between the second pair of cylindrical lenses.
    Type: Grant
    Filed: August 20, 2009
    Date of Patent: November 27, 2012
    Assignee: Lawrence Livermore National Security, LLC
    Inventor: Alvin C. Erlandson
  • Publication number: 20120293700
    Abstract: Generating a high definition projected illumination pattern from a substantially lower resolution digital projector array involves: selectively illuminating a connected set of pixels to produce a pixellated, high contrast edge feature, and positioning an anisotropically blurring optical element (ABOE) between a light source of the projector array and the projection. The ABOE applies an anisotropic blur pattern to pixels of the at least one connected set, to locally preferentially blur the pixel more (and preferably substantially only) in a direction of equally or more strongly illuminated pixels, and not in directions of less illuminated pixels. Preferably a contour of the connected set has no beginning or end within a periphery of the illumination plane, and has bounded curvature, permitting simple ABOEs to be used. Several images each having several or many edges can be produced using a same ABOE. The ABOE may alleviate interpixel gap effects for non-edge pixels too.
    Type: Application
    Filed: May 16, 2011
    Publication date: November 22, 2012
    Inventors: Marc-Antoine DROUIN, Francois BLAIS
  • Publication number: 20120281420
    Abstract: A combined optical element of the present invention includes a first optical element for collecting light in one direction on an irradiated surface; and a second optical element for collecting light in another direction on the irradiated surface. The first optical element and the second optical element are superposed with light-incoming surfaces thereof as being a common surface, and a light-outgoing surface is formed only with a superposed part. This prevents light from irradiating unnecessary parts, which allows the irradiated surface of a photographic subject to be irradiated with a small amount of light emission.
    Type: Application
    Filed: October 24, 2011
    Publication date: November 8, 2012
    Applicant: PANASONIC CORPORATION
    Inventor: Nami Sawada
  • Publication number: 20120212566
    Abstract: A light emitting component includes plural of light emitting elements arranged in rows on a substrate, plural lenses provided to face light emitting faces to which light beams of the plural light emitting elements are emitted, and condensing the light beams emitted from the light emitting elements, and one or plural pedestals holding the lenses such that the light emitting faces of the respective light emitting elements of the plural light emitting elements and the lenses that face the light emitting elements face the light emitting faces via gaps.
    Type: Application
    Filed: July 22, 2011
    Publication date: August 23, 2012
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Takashi KIKUCHI, Roshan THAPLIYA, Shigetoshi NAKAMURA
  • Publication number: 20120105945
    Abstract: A spatial filter includes a first filter element and a second filter element overlapping with the first filter element. The first filter element includes a first pair of cylindrical lenses separated by a first distance. Each of the first pair of cylindrical lenses has a first focal length. The first filter element also includes a first longitudinal slit filter positioned between the first pair of cylindrical lenses. The second filter element includes a second pair of cylindrical lenses separated by a second distance. Each of the second pair of cylindrical lenses has a second focal length. The second filter element also includes a second longitudinal slit filter positioned between the second pair of cylindrical lenses.
    Type: Application
    Filed: September 7, 2011
    Publication date: May 3, 2012
    Applicant: Lawrence Livermore National Security, LLC
    Inventors: Alvin Charles Erlandson, Andrew James Bayramian
  • Publication number: 20120075683
    Abstract: A cylindrical lens according to the present invention is a cylindrical lens of a bi-concave type in which both of a surface on which light is made incident and a surface from which the light is emitted are formed as concave surfaces, wherein, in at least one of the concave surfaces, both ends of the concave surface projecting to outer sides are formed to coincide with a plane, a normal of the plane being an optical axis of the cylindrical lens.
    Type: Application
    Filed: December 7, 2011
    Publication date: March 29, 2012
    Applicants: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha Toshiba
    Inventor: Yasushi KURIBAYASHI
  • Publication number: 20120063009
    Abstract: To suppress bad shaping generated due to fusion of neighboring cylindrical lenses in a lens sheet formed by using an ultraviolet curable resin, for example. A lens sheet includes: a substrate formed with a transparent material; a plurality of protruded lines provided on the substrate in parallel at a specific pitch; and a plurality of cylindrical lenses, each of which is provided between the plurality of protruded lines on the substrate. The protruded line for forming the lens is designed to be constituted with a set of two lines, i.e., a left protruded line and a right protruded line, to suppress fusion of the neighboring lenses.
    Type: Application
    Filed: September 15, 2011
    Publication date: March 15, 2012
    Applicant: NLT TECHNOLOGIES, LTD.
    Inventors: Hiroshi OKUMURA, Jin MATSUSHIMA, Hiroshi TANABE
  • Publication number: 20110299377
    Abstract: A lens including: a lens body having first and second surfaces; a flange part formed to protrude from a periphery of the lens body and to have a cylindrical outer circumferential surface; a lens installation surface formed at an outer edge part of the flange part; a recessed part formed as a part of the flange part such that a part of the cylindrical outer circumferential surface is recessed toward the optical axis; and a gate root part located at a central part of the recessed part. The gate root part has a flat surface which is in a same level with respect to the lens installation surface. The gate root part lies on an optical axis side with respect to a virtual curved surface formed by extending the cylindrical outer circumferential surface through the recessed part.
    Type: Application
    Filed: June 3, 2011
    Publication date: December 8, 2011
    Applicant: HOYA CORPORATION
    Inventors: Shungo HANASHIRO, Akira IWABUCHI
  • Patent number: 8029143
    Abstract: An illumination system for providing an illumination beam to a light valve is provided. The illumination system includes a light source, a light integration rod, a color wheel, a first focusing unit and a second focusing unit. The light source is capable of generating the illumination beam, and the light integration rod is disposed on the transmission path of the illumination beam. The first focusing unit is disposed between the integration rod and the color wheel and is capable of focusing the illumination beam onto the color wheel. The second focusing unit is disposed between the color wheel and the light valve and is capable of focusing the illumination beam onto the light valve.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: October 4, 2011
    Assignee: Young Optics Inc.
    Inventors: Mei-Ling Chen, S-Wei Chen, Chao-Shun Chen, Hung-Cheng Lung, Chun-Fa Hsu, Cheng-Shun Liao
  • Patent number: 7989825
    Abstract: A lens-attached light-emitting element having an improved optical availability efficiency includes a composite lens provided on an approximately U-shaped light-emitting area of the light emitting element array. Four spherical lenses are arranged in such a manner that each is centered in the neighborhood the an end of a respective one of three segments of a U-shaped polygonal line corresponding to positions where light emitted by the U-shaped light-emitting area is a maximum Three cylindrical lens are arranged between two of the spherical lens, respectively, each cylindrical lens having an axis parallel with each segment. These four spherical lenses and three cylindrical lenses together constitute the composite lens. The light-emitting element further comprises an antireflection film covering the light-emitting area, and the composite lens is formed on the surface of the antireflection film.
    Type: Grant
    Filed: June 24, 2004
    Date of Patent: August 2, 2011
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Kenjiro Hamanaka, Takahiro Hashimoto, Hideshi Nagata, Seiji Ohno, Isao Muraguchi, Nobuyuki Komaba
  • Patent number: 7943228
    Abstract: A printing medium includes: a rectangular lens sheet that has a surface formed in a predetermined lens shape; and a thin base that is fixed to a rear surface of the lens sheet on which no lens is formed and has an extending portion extending from one side of the lens sheet to the outside. In the printing medium, when a region corresponding to the rear surface of the lens sheet is referred to as a unit region, the extending portion includes a plurality of unit regions adjacent to one another with adjacent portions, which are common sides, interposed therebetween, and a first printing surface and a second printing surface having predetermined images formed thereon are formed in corresponding unit regions on one surface of the base that is fixed to the rear surface of the lens sheet or the other surface of the base. In addition, at least one unit region is additionally interposed between the unit region where the first printing surface is formed and the unit region where the second printing surface is formed.
    Type: Grant
    Filed: April 24, 2007
    Date of Patent: May 17, 2011
    Assignee: Seiko Epson Corporation
    Inventors: Katsuhito Suzuki, Mitsuaki Yoshizawa, Mitsuru Nakata, Fumiaki Mukaiyama
  • Publication number: 20110043899
    Abstract: A spatial filter includes a first filter element and a second filter element overlapping with the first filter element. The first filter element includes a first pair of cylindrical lenses separated by a first distance. Each of the first pair of cylindrical lenses has a first focal length. The first filter element also includes a first slit filter positioned between the first pair of cylindrical lenses. The second filter element includes a second pair of cylindrical lenses separated by a second distance. Each of the second pair of cylindrical lenses has a second focal length. The second filter element also includes a second slit filter positioned between the second pair of cylindrical lenses.
    Type: Application
    Filed: August 20, 2009
    Publication date: February 24, 2011
    Applicant: Lawrence Livermore National Security, LLC
    Inventor: Alvin Charles Erlandson
  • Patent number: 7880977
    Abstract: A rod lens is used for fitting in an endoscopes. The rod lens has a rod-shaped body which is made at least in a section of a flexible, transparent solid piece of plastic material.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: February 1, 2011
    Assignee: Karl Storz GmbH & Co. KG
    Inventors: Frank Lederer, Frank Fuerst, Matthias Huber, Juergen Rudischhauser
  • Patent number: 7862221
    Abstract: An optical lens refracts and reflects a light to increase a luminance in a top direction of the optical lens and to decrease a luminance in a horizontal direction of the optical lens. The optical lens includes a central portion and a peripheral portion. The central portion has a convex shape. The peripheral portion has a concave shape. The peripheral portion surrounds the central portion. Therefore, a power consumption and a manufacturing cost are decreased.
    Type: Grant
    Filed: March 7, 2006
    Date of Patent: January 4, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Se-Ki Park, Sang-Yu Lee, Gi-Cherl Kim, Seok-Hyun Nam, Ju-Young Yoon
  • Patent number: 7863588
    Abstract: A lighting optical apparatus using a deep ultraviolet light source that are easy to adjust due to a configuration with fewer components, has high illuminant and illuminant uniformity on an irradiated surface are provided. The apparatus has a deep ultraviolet light source from which deep ultraviolet rays are emitted, a first double-sided cylindrical lens which has a cylindrical lens array on both sides with a configuration of cylinder axes intersecting at right angles, a second double-sided cylindrical lens which has a cylindrical lens array on both sides with a configuration of cylinder axes intersecting at right angles, and a condenser lens.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: January 4, 2011
    Assignees: Kabushiki Kaisha Toshiba, NEC Corporation
    Inventor: Masatoshi Hirono
  • Publication number: 20100277698
    Abstract: A beam alignment chamber extending in a length direction comprising a base having a front edge, and two side edges, first and second opposed side walls connected to the base, and extending along the length of the base, a front wall located at the front edge of the base having an output opening. The beam alignment chamber further comprises a plurality of arrays of light sources disposed to direct light beams through the first or second side walls, and a plurality of reflectors mounted on the base, each having independent yaw and pitch adjustments, each reflector being paired with a corresponding array of light sources, the base-mounted reflectors being disposed to direct the light beams along the length of the beam alignment chamber through the output opening forming an aligned two-dimensional array of parallel light beams.
    Type: Application
    Filed: April 30, 2009
    Publication date: November 4, 2010
    Inventors: Mark A. Harland, Barry D. Silverstein, James R. Kircher
  • Publication number: 20100182706
    Abstract: An optical-deflection accelerating device is provided. The device comprises an incident light source for generating an incident light-beam with a deflection speed, an emergent-light capturing device for capturing an emergent light-beam, and a reflective device which is a curved-surface reflective mirror for reflecting the incident light-beam to the emergent-light capturing device. When the incident light-beam enters to a reflective point on the curved-surface reflective mirror in sequence, an incident angle and a reflective angle are altered with locations of the reflective point on the curved-surface reflective mirror, and are increased with an increased curvature of the reflective point. When the incident light-beam is deflected with a tiny initial deflection angle, the reflective light-beam is deflected therewith and the deflection angle is enlarged. The curvature of the curved-surface reflective mirror can be adjusted to obtain different accelerated deflections.
    Type: Application
    Filed: December 30, 2009
    Publication date: July 22, 2010
    Applicant: Shenzhen University
    Inventors: Jingzhen Li, Qingyeng Wu
  • Publication number: 20100177406
    Abstract: A solar concentrator comprises a curved linear Fresnel lens (16) which has a plurality of prismatic features (10, 12, 14). The prismatic features are arranged into at least two segments, in each segment the prismatic features have a common apex angle, the common apex angle differing between adjacent segments. A method of manufacturing a mould (2) for producing a Fresnel lens optical film (16) is disclosed. The method comprises rotating a mould blank, and forming a plurality of different prismatic features (10, 12, 14) on the mould blank by repeatedly advancing a cutting tool (4) onto and then withdrawing the tool away from the surface of the mould blank.
    Type: Application
    Filed: June 23, 2008
    Publication date: July 15, 2010
    Applicant: MICROSHARP CORPORATION LIMITED
    Inventor: Nicholas Simon Walker
  • Publication number: 20100177405
    Abstract: An optical fiber micro array lens is provided along with an associated fabrication method. The micro array lens is fabricated from a mesh of optical fibers. The mesh includes a first plurality of cylindrical optical fibers. Each fiber from the first plurality has a flat bottom surface and a hemicylindrical top surface. The top and bottom surfaces are aligned in parallel with a central fiber axis. The mesh also includes a second plurality of cylindrical optical fibers. Each fiber from the second plurality has a hemicylindrical bottom surface overlying and in contact with the top surfaces of the first plurality of optical fibers, and a flat top surface. The top and bottom surfaces are aligned in parallel with a central fiber axis. Each contact of the first and second plurality of optical fibers forms a lens assembly in a micro array of lenses.
    Type: Application
    Filed: January 13, 2009
    Publication date: July 15, 2010
    Inventor: Joseph Martin Patterson
  • Patent number: 7724437
    Abstract: The current invention describes the method of making symmetrical radiation of extremely asymmetrical light sources, e.g. laser diode bars, using the shaper of three optical elements that preserve the brightness of the initial light source. The first element of the shaper-collimator of the fast axis-images the light source in the direction of the fast axis directly into the output plain of the shaper. The second and the third element of the shaper are the multi-segment elements that separate and optimally redistribute different beams and focus these in the direction of the slow axis. The surfaces of the shaper optical elements are described by the surfaces of the second and higher order, which enables compensation of different distortions, for instance field curvature aberration, distortion caused by the light source bending, etc. The shaper offers optimal order of secondary beam redistribution that has the least possible impact on the initial beam brightness.
    Type: Grant
    Filed: December 16, 2004
    Date of Patent: May 25, 2010
    Assignee: UAB MGF ‘Sviesos Konversija’
    Inventors: Linas Giniunas, Romualdas Danielius
  • Patent number: 7688522
    Abstract: A lens has a convex or concave shaped smooth non-spherical surface or non-circular curve which is formed of a medium indicating negative refraction.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: March 30, 2010
    Assignee: Olympus Corporation
    Inventor: Kimihiko Nishioka
  • Publication number: 20100053739
    Abstract: An exemplary laser device includes a laser source and an optical module. The laser source is configured for emitting a laser beam in the TEMxy mode, wherein 0?x?3, and 0?y?3. The optical module includes a cylindrical-type lens disposed on a light path of the laser beam. The cylindrical-type lens has a first surface and an opposite second surface, and the first surface faces toward the laser source. At least one of the first surface and the second surface is a cylindrical-type curved surface configuring for adjusting a field distribution of the laser beam of the laser source.
    Type: Application
    Filed: August 28, 2009
    Publication date: March 4, 2010
    Applicant: FOXSEMICON INTEGRATED TECHNOLOGY, INC.
    Inventors: An-Chi Wei, Wen-Jang Jiang
  • Publication number: 20100053769
    Abstract: Systems and methods are operable to focus light. An exemplary embodiment has a MEMS substrate, a first cylindrical lens having a first cylindrical surface, and a second cylindrical lens having a second cylindrical surface that is oriented perpendicular to the first cylindrical surface. Light passing through the first and second cylindrical lenses is focused.
    Type: Application
    Filed: August 28, 2008
    Publication date: March 4, 2010
    Applicant: Honeywell International Inc.
    Inventors: James F. Detry, Robert J. Carlson
  • Publication number: 20100046083
    Abstract: In a particular embodiment, a solid immersion lens includes meta-material slabs formed from multiple layers of at least two different compositions. Each meta-material slab has a first effective index of refraction. The meta-material slabs are adapted to propagate an evanescent wave in a direction parallel to an axis to form a cone-shaped wave along the axis. The solid immersion lens further includes a core sandwiched between the meta-material slabs along the axis and having a second index of refraction that is less than the first effective index of refraction. The core directs surface plasmons that are excited by the cone-shaped wave to a focused area coincident with the axis.
    Type: Application
    Filed: August 19, 2008
    Publication date: February 25, 2010
    Applicant: Seagate Technology LLC
    Inventor: Chubing Peng
  • Publication number: 20100026962
    Abstract: An optical element for compensating for aberrations in a projected image resulting from an air gap between adjacent segments of a separation prism includes a first surface and a second surface opposite said first surface. Each of the first and second surface define a portion of a cylinder having a radius and a cylindrical axis. The optical element is disposed between the separation prism and the projected image. A thickness of the optical element and the radius of the cylinder are selected to correspond to the aberration to be compensated and the cylindrical axis is oriented to correspond to the aberration to be compensated.
    Type: Application
    Filed: July 30, 2008
    Publication date: February 4, 2010
    Inventor: Duane Scott Dewald
  • Publication number: 20100020333
    Abstract: The invention describes an optical deflection element for the refractive production of a spatially structured bundle of light beams fanned concentrically to an optical axis of the deflection element. The optical deflection element has a base body made of optically transparent material, and has a light input and output side. The light input side is configured such that a primary bundle of light beams can be coupled in the base body. The light output side has a cylindrically symmetrical contour, which defines a recess in the base body. The fanning of the primary bundle of light beams is achieved by refraction on rotationally symmetric interfaces, which are variably inclined relative to the optical axis. The invention further relates to an optical measuring device for the three-dimensional measurement of a cavity in an object and a method for producing a concentrically fanned, spatially structured bundle of light beams.
    Type: Application
    Filed: January 28, 2008
    Publication date: January 28, 2010
    Inventors: Martin Kunz, Anton Schick, Michael Stockmann
  • Patent number: 7645057
    Abstract: An optical sheet includes a substrate onto which light is incident, and a convex part protruded from the substrate by a predetermined thickness. A thickness of the convex part increases from an edge to a center thereof.
    Type: Grant
    Filed: January 18, 2008
    Date of Patent: January 12, 2010
    Assignee: Miraenanotech Co., Ltd.
    Inventors: Cheul Yong Kim, Sang Mook Kim, Jong Wook Huh, Dong Ryoul Kim, Ki Won Jeon, Ju Won Lee, Eun Jung Ham, Myung Su Lee
  • Publication number: 20090322343
    Abstract: A reflector tool and a method are provided for three-dimensional integrated circuit (IC) failure analysis. An IC (die) has top and bottom surfaces, a perimeter, and a first side. The IC is electrically connected to a current sensing amplifier. The first side of the IC is scanned in the X plane with an infrared laser beam while changes in IC current flow are sensed. The sensed current changes are cross-referenced to the location of the infrared laser beam in the X plane. In one aspect, a plurality of scans are performed on the first side in the X plane, with at a corresponding plurality of steps in the Y plane, so that current changes can be cross-referenced to locations in the X and Y planes. Using this 2-D analysis through the IC side, a human operator or software program can determine defects in the IC.
    Type: Application
    Filed: February 18, 2009
    Publication date: December 31, 2009
    Inventor: Joseph Martin Patterson
  • Patent number: 7586662
    Abstract: A three-dimensional input apparatus includes a lens L1 for converting angular information about light rays from a object, a focusing element L3 for focusing the light rays from the object to the vicinities of an array R of photoelectric elements, and a lens L2 for performing conversion into a real image near the surface of the focusing element L3. The lens L2 is present between the lens L1 and focusing element L3. The array R records light as image signal sequentially. A driver portion drives the optical system and scans light ray information about the object.
    Type: Grant
    Filed: August 27, 2008
    Date of Patent: September 8, 2009
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yoshiharu Momonoi, Kazuki Taira
  • Patent number: 7570437
    Abstract: In a first aspect, the present invention provides an omni-directional imaging assembly. In the preferred embodiment the assembly of the invention comprises a solid omni-directional lens comprising a vertical axis of symmetry; an upper surface, at least part of which is capable of reflecting rays that arrive from the inner side of the omni-directional lens; a transparent perimeter surface; a lower convex surface, at least part of which is capable of reflecting rays that arrive from the direction of the perimeter surface; and a transparent circular surface maintained in the lower convex surface around the vertical axis of symmetry. The light rays from a first 360 degrees, panoramic, scene are refracted by the transparent perimeter surface, are then reflected by the lower convex surface towards the upper surface, and then reflected by the upper surface towards the transparent circular surface, where they are refracted and exit the omni-directional lens.
    Type: Grant
    Filed: October 27, 2003
    Date of Patent: August 4, 2009
    Assignees: O.D.F. Optronics, Ltd., O.D.F. Medical Ltd.
    Inventors: Ehud Gal, Gennadiy Liteyga, Gil Graisman
  • Publication number: 20090128879
    Abstract: A cylindrical lens according to the present invention is a cylindrical lens of a bi-concave type in which both of a surface on which light is made incident and a surface from which the light is emitted are formed as concave surfaces, wherein, in at least one of the concave surfaces, both ends of the concave surface projecting to outer sides are formed to coincide with a plane, a normal of the plane being an optical axis of the cylindrical lens.
    Type: Application
    Filed: November 7, 2008
    Publication date: May 21, 2009
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Yasushi KURIBAYASHI
  • Patent number: 7532402
    Abstract: The invention relates to an imaging device for imaging a long object. The imaging device includes at least one vertical lens device which concentrates light from the long object in a vertical direction, and a plurality of lens elements which are arranged in the form of a matrix in at least one lens line behind the vertical lens device, the lens elements respectively concentrating light from the long object in a horizontal direction. In order to achieve optimum light intensity in a cost-effective manner, each lens element comprises at least one horizontal collecting layer which is transparent to the light from the long object and comprises a refractive index having a gradient in the horizontal direction.
    Type: Grant
    Filed: September 18, 2002
    Date of Patent: May 12, 2009
    Assignee: Agfa-Gevaert Healthcare GmbH
    Inventor: Georg Reiser
  • Patent number: 7483194
    Abstract: A module for an optical information reader, wherein a light emitting unit (22), a collimator lens (23), a vibration mirror (31) for scanning, a condensing mirror (40), and a light receiving unit (50) are installed in a module casing (10) for modularization, and a lens-barrel hole (13b) opening at one end thereof and having an aperture (13a) formed at the tip face thereof is provided in the module casing (10), the collimator lens (23) is installed in the lens-barrel hole (13b) so as to come into contact with the tip bottom part thereof, and the light emitting unit (22) is press-fitted into the press-fit part (13c) of the lens-barrel hole in front of the collimator lens to form a laser beam generating part (20).
    Type: Grant
    Filed: November 27, 2006
    Date of Patent: January 27, 2009
    Assignee: Optoelectronics Co., Ltd.
    Inventors: Hiroshi Hayakawa, Toru Takahashi, Kentaro Takahashi
  • Patent number: RE40954
    Abstract: An objective lens (1) for an optical disk, which focuses a light beam from a light source, is designed so that a third-order coma aberration generated when the objective lens is inclined at a unit angle is larger than a third-order coma aberration generated when the optical disk (2) is inclined at the unit angle, mounted on an actuator for inclining the objective lens according to an inclination amount of the optical disk, and used. With this structure, it is possible to obtain an objective lens for an optical disk that has a large numerical aperture and is easy to manufacture and assemble, and in which the third-order coma aberration generated when the optical disk surface is inclined owing to a warp or the like can be corrected by small inclination of the objective lens, so as to reduce a residual astigmatism, which is generated according to the inclination amount, after the correction.
    Type: Grant
    Filed: July 27, 2000
    Date of Patent: November 10, 2009
    Assignee: Panasonic Corporation
    Inventors: Tomohiko Sasano, Yasuhiro Tanaka, Michihiro Yamagata