Light Interference Patents (Class 359/577)
  • Patent number: 10495513
    Abstract: The invention relates to a multi-resolution optical spectrometer that employs two output lenses of different focal length to provide a broad wavelength range, coarse resolution spectral measurement and a high resolution, lower range spectral measurement. Light dispersed by a virtual image phase array followed by a diffraction grating in two different dispersion orders may be separately focused by the two lenses upon to 2D detector array to provide the two measurements.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: December 3, 2019
    Assignee: LightMachinery Inc.
    Inventors: Hubert Jean-Ruel, John Reid, John H. Hunter, Jesse Dean, Edward S. Williams, Ian J. Miller
  • Patent number: 10419154
    Abstract: The concepts, systems and methods described herein are directed towards encrypting optical signals prior to the optical signals being sensed, for example, by a sensor. An optical phased array (OPA) may be disposed between an optical chain and a sensor to encrypt an optical signal being sensed before the signal is received at the sensor. The method includes receiving an optical signal having a plurality of beams organized in a first arrangement at an optical phased array, encrypting the optical signal in the optical phased array by steering or otherwise phase shifting the plurality of beams from the first arrangement to a second arrangement, transmitting the plurality of beams in the second arrangement from the optical phased array to a sensor and sensing the encrypted optical signal having the plurality of beams in the second arrangement at the sensor.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: September 17, 2019
    Assignee: Raytheon Company
    Inventors: John M. Bergeron, Andrew D. W. McKie, Carl E. Buczala
  • Patent number: 10281676
    Abstract: A plastic barrel includes an object-end portion, an image-end portion, an inner tube portion and a plurality of protrusions. The object-end portion includes an outer object-end surface, an object-end hole and an inner annular object-end surface. One side of the inner annular object-end surface is connected to the outer object-end surface and surrounds the object-end hole. The image-end portion includes an outer image-end surface, an image-end opening and an inner annular image-end surface. The inner annular image-end surface is connected to the outer image-end surface and surrounds the image-end opening. The inner tube portion connects the object-end portion and the image-end portion and includes a plurality of inclined surfaces. The protrusions are disposed at least on one of the inner annular object-end surface, the inner annular image-end surface and the inclined surfaces, wherein the protrusions are regularly arranged around the central axis of the plastic barrel.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: May 7, 2019
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Cheng-Feng Lin, Wei-Hung Weng, Ming-Ta Chou
  • Patent number: 10191022
    Abstract: A spectral radiation gas detector has at least one lenslet with a circular blazed grating for diffraction of radiation to a focal plane. A detector is located at the focal plane receiving radiation passing through the at least one lenslet for detection at a predetermined diffraction order. A plurality of order filters are associated with the at least one lenslet to pass radiation at wavelengths corresponding to the predetermined diffraction order, each filter blocking a selected set of higher orders. A controller is adapted to compare intensity at pixels in the detector associated with each of the plurality of order filters and further adapted to determine a change in intensity exceeding a threshold.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: January 29, 2019
    Assignee: UVIA GROUP LLC
    Inventor: Michele Hinnrichs
  • Patent number: 9945998
    Abstract: Optical systems including an image surface, a stop surface, a partial reflector disposed between the image surface and the stop surface, a reflective polarizer disposed between the stop surface and the partial reflector, and a quarter wave retarder disposed between the reflective polarizer and the partial reflector are described. The reflective polarizer is convex along two orthogonal axes. The reflective polarizer may be a thermoformed multilayer reflective polarizer.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: April 17, 2018
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Andrew J. Ouderkirk, Timothy L. Wong, Zhisheng Yun, Erin A. McDowell, Gregg A. Ambur
  • Patent number: 9921403
    Abstract: An optical filter includes: a first substrate; a second substrate opposed to the first substrate; a first reflecting film provided to the first substrate; a second reflecting film provided to the second substrate and opposed to the first reflecting film; a first electrode provided to the first substrate in a peripheral area of the first reflecting film; a second electrode provided to the first substrate in a peripheral area of the first electrode; a third electrode provided to the second substrate and opposed to the first electrode; and a fourth electrode provided to the second substrate and opposed to the second electrode.
    Type: Grant
    Filed: April 13, 2015
    Date of Patent: March 20, 2018
    Assignee: Seiko Epson Corporation
    Inventor: Akira Sano
  • Patent number: 9771470
    Abstract: Disclosed are a rubber latex and a method of preparing the same. The rubber latex comprises a diene based rubber polymer core and a multilayer shell structure wherein an aromatic or non-aromatic polymer having an unsaturated double bond and a diene based polymer are alternatively laminated on the core. When a rubber reinforced graft copolymer is prepared through emulsion polymerization of the rubber latex, a product having excellent impact resistance and colorability may be provided.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: September 26, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Ju Byung Chai, Yu Sung Jung, Eun Seon Park, Tae Young Jeon, Jin Ho Lee
  • Patent number: 9651726
    Abstract: A reflective film includes interior layers that selectively reflect light by constructive or destructive interference, the layers extending from a first to a second zone of the film. In the first zone the layers provide a first reflective polarizer characteristic, and in a second zone the layers provide a substantially different reflective polarizer characteristic. The second zone is characterized by at least some of the layers having a reduced birefringence relative to their birefringence in the first zone. In some cases the first reflective polarizer characteristic may have a pass axis that is substantially orthogonal to that of the second reflective polarizer characteristic. The film may have substantially the same thickness in the first and second zones, or a substantially reduced thickness in the second zone relative to the first zone.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: May 16, 2017
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: William Ward Merrill, Douglas S. Dunn
  • Patent number: 9383498
    Abstract: Embodiments of the invention disclose a light-condensing sheet, a backlight and a liquid crystal display. The light-condensing sheet comprises a supporter and a plurality of flat light-condensing films provided on the supporter, and refractive indexes of the plurality of light-condensing films gradually increase from bottom to top.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: July 5, 2016
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Haiwei Sun, Hyungkyu Kim
  • Patent number: 9296609
    Abstract: An optical-microwave-quantum transducer can include a first nanophotonic slab and a second nanophotonic slab. Each of the first and second nanophotonic slabs can include an optical region and a superconducting region. The first nanophotonic slab can include a pair of torsional beams anchored to a substrate to allow relative rotation between the first and second nanophotonic slabs about an axis of rotation. The optical-microwave-quantum transducer can include a gap between the optical region of the first and second nanophotonic slabs that forms an optical cavity in response to an optical signal, wherein the optical cavity can induce mechanical oscillation of the first nanophotonic slab about the axis of rotation. The mechanical oscillation can induce electrical modulation on a superconducting cavity coupled to the superconducting regions of the first and second nanophotonic slabs.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: March 29, 2016
    Assignee: Northrop Grumman Systems Corporation
    Inventor: Jae I. Park
  • Patent number: 9030743
    Abstract: An optical filter includes: a first substrate; a second substrate opposed to the first substrate; a first reflecting film provided to the first substrate; a second reflecting film provided to the second substrate and opposed to the first reflecting film; a first electrode provided to the first substrate in a peripheral area of the first reflecting film; a second electrode provided to the first substrate in a peripheral area of the first electrode; a third electrode provided to the second substrate and opposed to the first electrode; and a fourth electrode provided to the second substrate and opposed to the second electrode.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: May 12, 2015
    Assignee: Seiko Epson Corporation
    Inventor: Akira Sano
  • Publication number: 20150062708
    Abstract: An optical filter device includes a wavelength tunable interference filter, a lid having a second opening, a base that forms a receiving space together with the lid, a second glass member that covers the second opening and is bonded to the lid through low melting point glass, and a metal layer provided on the lid. The metal layer is provided outside a line that is separated from the outer peripheral edge of the second glass member by a predetermined distance toward a side away from the second opening and is disposed along the outer peripheral edge of the second glass member in plan view when the lid is viewed from a normal direction with respect to the opening surface of the second opening.
    Type: Application
    Filed: September 3, 2014
    Publication date: March 5, 2015
    Inventors: Yasushi MATSUNO, Daisuke SAITO, Hideo IMAI, Shigemitsu KOIKE
  • Patent number: 8970957
    Abstract: An etalon (tunable interference filter) includes a fixed substrate, a movable substrate facing the fixed substrate, a fixed reflection film disposed on the fixed substrate, a movable reflection film disposed on the movable substrate and facing the fixed reflection film via a gap, a fixed electrode disposed on the fixed substrate, and a movable electrode disposed on the movable substrate and facing the fixed electrode. A movable insulating film is stacked on a surface of the movable electrode on the side of the fixed electrode, the movable electrode has a compressive stress, and the movable insulating film has a tensile stress.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: March 3, 2015
    Assignee: Seiko Epson Corporation
    Inventor: Koji Kitahara
  • Patent number: 8917451
    Abstract: A variable wavelength interference filter includes: a first reflective film disposed on a face of a first substrate facing a second substrate; a second reflective film disposed on a face of the second substrate facing the first substrate and the first reflective film; a first electrode disposed on the face of the first substrate; and a second electrode disposed on the face of the second substrate. The second substrate includes a movable portion on which the second reflective film is disposed and a connection maintaining portion maintaining the movable portion to be movable in a substrate thickness direction, the connection maintaining portion circumscribes the movable portion and is thinner than the movable portion, and the second electrode is disposed on a portion of the second substrate that is thicker than the connection maintaining portion.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: December 23, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Teruyuki Nishimura, Akira Sano
  • Patent number: 8917449
    Abstract: An optical filter includes a first substrate, a second substrate, a first reflecting film disposed on a first opposed surface of the first substrate, a second reflecting film disposed on a second opposed surface of the second substrate, a first electrode provided to the first substrate at a peripheral position of the first reflecting film in a plan view, and a second electrode provided to the second substrate and opposed to the first electrode. At least one of the first opposed surface and the second opposed surface is provided with a step section, and an initial gap between the first reflecting film and the second reflecting film is smaller than an initial gap between the first electrode and the second electrode, to thereby allow control of the gap between the reflecting films with good accuracy.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: December 23, 2014
    Assignee: Seiko Epson Corporation
    Inventor: Akira Sano
  • Publication number: 20140334776
    Abstract: An optical component including an interference filter which is less likely to generate back reflected light, where the filter is accommodated in a hollow cylindrical housing and is tilted with respect to the optical axis. The housing has front and back openings. First and second collimator lenses respectively face the front and back openings. The housing includes a filter housing section and first and second cylindrical optical path sections extending in the front-back direction respectively from the front and back openings to the filter housing section while maintaining the shape of each opening. The diameter of the opening of the first optical path section is smaller than the apparent diameter of the first collimator lens. When light is input from the front along the optical axis, light of prescribed wavelengths is output to the back. Light reflected by the filter travels toward the inside of the first optical path section.
    Type: Application
    Filed: October 30, 2012
    Publication date: November 13, 2014
    Inventors: Takashi Kato, Tomoaki Kiriyama
  • Publication number: 20140334005
    Abstract: The present invention provides silk photonic crystals that can be used to enhance light-induced effects. Also disclosed are biocompatible, functionalized, all-protein inverse opals and related methods.
    Type: Application
    Filed: December 5, 2012
    Publication date: November 13, 2014
    Inventors: Fiorenzo Omenetto, David Kaplan, Sunghwan Kim
  • Patent number: 8842364
    Abstract: An optical device that has an antireflection function, the optical device including: a base; and a plurality of structural bodies, which are formed by convex portions or concave portions, arranged on a surface of the base with a fine pitch that is equal to or smaller than a wavelength of visible light, wherein the plurality of structural bodies are arranged so as to form tracks of a plurality of rows on the surface of the base and form a quasi-hexagonal lattice pattern, a tetragonal lattice pattern, or a quasi-tetragonal lattice pattern, and wherein a packing ratio of the structural bodies to the surface of the base is equal to or higher than 65%.
    Type: Grant
    Filed: October 1, 2013
    Date of Patent: September 23, 2014
    Assignee: Dexerials Corporation
    Inventors: Sohmei Endoh, Kazuya Hayashibe
  • Publication number: 20140268117
    Abstract: A computer-based method for inspecting a wafer, including: storing, in a memory element for at least one computer, computer readable instructions; detecting a first light beam rotating in a first spiral about a first central axis; and executing, using a processor for the at least one computer, the computer readable instructions to generate, using the detected first light beam, an image including at least one shape, determine an orientation of the at least one shape or a size of the at least one shape, and calculate a depth of a defect in the wafer according to the orientation or the size.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Inventor: KLA-Tencor Corporation
  • Patent number: 8792101
    Abstract: A colorimetric sensor includes an etalon including a first substrate, a second substrate facing the first substrate, a fixed mirror formed on a surface of the first substrate facing the second substrate, and a movable mirror formed on the second substrate so as to face the fixed mirror with a prescribed gap therebetween, a light receiving element that receives a test subject light having passed through the etalon, and a holding member holding the etalon. The etalon includes a light interference area facing the first and second substrates in a plan view as seen in a thickness direction of the substrate, and a protruding area protruding from the light interference area. The holding member holds the etalon at one end side of the protruding area opposite to the light interference area.
    Type: Grant
    Filed: January 25, 2012
    Date of Patent: July 29, 2014
    Assignee: Seiko Epson Corporation
    Inventor: Takeshi Nozawa
  • Publication number: 20140204442
    Abstract: Described is a method of controlling the absorption of light in a cavity, a system in which absorption is so controlled, and an interferometer embodying the underlying physical concept. Materials can be made to completely absorb incident light when the light is imposed in a specific pattern of illumination. Coherent perfect absorption, as the process is referred to, is achieved when a cavity is illuminated coherently and monochromatically by the time-reverse of the output of a lasing mode. Varying the parameters of the incident light and/or of the cavity allows the absorption of the incident light by the cavity to be controlled; enhanced or even reduced.
    Type: Application
    Filed: March 25, 2014
    Publication date: July 24, 2014
    Applicant: Yale University
    Inventors: A. Douglas Stone, Hui Cao, Li Ge, Yidong Chong
  • Patent number: 8755116
    Abstract: In an optical assembly having a light source which provides two optically different light components with essentially planar wavefronts on an optical axis, wherein the light components differ at least in their wavelength; in the case of an objective lens which projects the two optically different light components into a projection space; and in the case of an optical component which is arranged on the optical axis and has an plane through which the wavefronts of the two light components pass and in which at least two different areas of the optical component with different dispersion behaviors n(?) abut against one another in the lateral direction with respect to the optical axis; the optical component causes phase shifts of the wavefronts of the two light components, wherein the phase shift of the wavefronts of the one light component differs by at least one quarter of the wavelength of that light component between the two different areas, and wherein the phase shift of the wavefronts of the other light compo
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: June 17, 2014
    Assignee: Max-Planck-Gesellschaft zur F├Ârderung der Wissenschaften e.V.
    Inventors: Lars Kastrup, Volker Westphal
  • Publication number: 20140160266
    Abstract: Image resolution enhancement techniques are implemented using a single image an unstructured broadband illumination. By placing an axicon and a convex lens pair in an optical path of a microscope, telescope, or the object system, between the system and an image capture pickup device (e.g., a camera) the maximum resolution of the system may be increased through the formation of an interference pattern at the image capture device.
    Type: Application
    Filed: December 9, 2013
    Publication date: June 12, 2014
    Applicant: Purdue Research Foundation
    Inventors: Steven T. Wereley, Craig A. Snoeyink
  • Publication number: 20140017603
    Abstract: An optical element includes: an incident surface irradiated with irradiation light; an emission surface of which at least a part faces a direction opposite to the incident surface; and a metal film having a hole to connect the incident surface and emission surface. The incident surface includes a first surface, disposed around an end of the hole on the incident surface side and having an inner edge connected to an inner surface of the hole, and a second surface disposed around the first surface forming a discontinuous portion between the second surface and an outer edge of the first surface. The distance between the inner and outer edges is determined by a wavelength of surface plasmons such that an intensity of light is increased due to interference between surface plasmons, excited at the inner edge by the irradiation light, and surface plasmons traveling from the discontinuous portion.
    Type: Application
    Filed: September 18, 2013
    Publication date: January 16, 2014
    Inventor: Daisuke MORI
  • Publication number: 20140002894
    Abstract: An electromagnetic wave resonator comprising a body, wherein the body: has a structure extending essentially in a plane (r, ?), comprises a material in a region between limit radii ri and ro, where 0?ri<rO and ro corresponds to a radius of a convex hull () of the structure; and allows for electromagnetic wave propagation, and wherein an effective refractive index ne(r), as obtained from angularly averaging a refractive index of the material in the plane (r, ?), decreases within said region.
    Type: Application
    Filed: February 23, 2012
    Publication date: January 2, 2014
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventor: Thilo Stoeferle
  • Patent number: 8619364
    Abstract: An apparatus for reducing fringe interference of light created in the optical system of a laser spectroscopy system comprising an electromagnetic actuator for generating, along a laser path, physical translational vibration of an optical element of the optical system and a control device for controlling the amplitude and frequency of said vibration. The optical element is arranged on a cantilever body which is, at one end, attached to a base by a flexural pivot and, at the other free end, coupled to the electromagnetic actuator, and the control device includes a controller that controls the amplitude of the vibration and a vibration sensor attached to the cantilever body and providing the actual vibration value to the controller to improve fringe interference reduction, especially with longer wavelengths.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: December 31, 2013
    Assignee: Siemens Aktiengesellschaft
    Inventors: Pawel Kluczynski, Rikard Larking, Tomas E. Lock
  • Publication number: 20130342910
    Abstract: The invention relates to an article (I) that in at least one region (2) consists of a transparent or translucent material, in particular of glass, wherein the article (I) comprises a dynamic moire pattern in the transparent or translucent region (2), and wherein the moire pattern comes about by superimposing at least two, preferably precisely two, laser-engraved grid structures (3), which at least in regions are visually separated from each other. The grid structures (3) are located: in different layers (4) inside the transparent or translucent region (2); or in at least one layer (4) inside and in a coating (5) of at least one surface of the transparent or translucent region (2); or in at least one first layer (4) inside the transparent or translucent region (2) and at least one second virtual layer (6) that is produced by reflecting the first layer (4) at a reflecting surface (7).
    Type: Application
    Filed: August 29, 2013
    Publication date: December 26, 2013
    Applicant: D. Swarovski KG
    Inventors: Helmut SCHAUR, Helmut FUCHS
  • Patent number: 8597577
    Abstract: An optoelectronic swept-frequency semiconductor laser coupled to a microfabricated optical biomolecular sensor with integrated resonator and waveguide and methods related thereto are described. Biomolecular sensors with optical resonator microfabricated with integrated waveguide operation can be in a microfluidic flow cell.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: December 3, 2013
    Assignee: California Institute of Technology
    Inventors: Richard C. Flagan, Amnon Yariv, Jason Gamba, Naresh Satyan, Jacob Sendowski, Arseny Vasilyev
  • Patent number: 8570643
    Abstract: A method of making an optical element, the optical element including magnetic resonators that are anisotropically shaped and smaller than a wavelength of incident light, includes a first step of dispersing the magnetic resonators in a host medium, a second step of applying an external magnetic field to the host medium after the first step, and a third step of curing the host medium after the second step.
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: October 29, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Daisuke Yamada
  • Patent number: 8571418
    Abstract: It is an object of the present invention to provide an optical waveform shaping device of high resolution. The above-mentioned problem is solved by an optical waveform shaping device (10) comprising a branching filter (11) for dividing the light beam from a light source into light beams of each frequency, a condensing part (12) for condensing a plurality of light beams divided by the branching filter (11), a polarization separation means (13) for adjusting the polarizing planes of the light beams having passed through the condensing part (12), and a spatial light modulator (14) having a phase modulation part and an intensity modulation part where the light beams having passed through the polarizing plate (13) are incident.
    Type: Grant
    Filed: June 12, 2008
    Date of Patent: October 29, 2013
    Assignees: National Institute of Information and Communications Technology, Optoquest Co., Ltd.
    Inventors: Naoya Wada, Seitetsu Boku, Takuya Yoda
  • Patent number: 8559111
    Abstract: An interference filter includes: a first substrate; a second substrate that faces one side of the first substrate and is bonded to the first substrate; a first reflection film formed on the side of the first substrate that faces the second substrate; and a second reflection film provided on the second substrate and faces the first reflection film, the first substrate including a first gap formation region in which the first reflection film is disposed and which is not contact with the second substrate, and wherein the first substrate and the second substrate are adhesively bonded to each other with the adhesive applied into the adhesive grooves with the first bonding region and the second bonding region bonded to each other.
    Type: Grant
    Filed: September 22, 2010
    Date of Patent: October 15, 2013
    Assignee: Seiko Epson Corporation
    Inventors: Teruyuki Nishimura, Akira Sano
  • Patent number: 8531527
    Abstract: An acoustic-wave sensor (10) is constructed by a membrane (11) adapted to be displaced by an acoustic wave, a first waveguide (16a) for transmitting light therein, an optical coupling part (15) to which the light transmitted through the first waveguide (16a) is adapted to be optically coupled, and a second waveguide (16b) through which the light coupled from the optical coupling part (15) transmits. When the membrane (11) is displaced by its reception of the acoustic wave, at least one of an optical coupling coefficient between the first waveguide (16a) and the optical resonator (15) and an optical coupling coefficient between the second waveguide (16b) and the optical resonator (15) is changed to output a corresponding optical signal.
    Type: Grant
    Filed: August 25, 2008
    Date of Patent: September 10, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Chienliu Chang, Kenichi Nagae
  • Patent number: 8462436
    Abstract: This invention relates to a solar photon filter, hereafter known as the SPF, which is a combination band-pass filtering system consisting of a multiple set of cold or hot mirrors and infra-red absorbers set in a 360-degree or linear arrangement. The system removes almost all of the photons carried by waves having lengths longer than 1000 nm (nanometers)+/?100 nm, while passing almost all of the incoming photons carried by waves having lengths shorter than 1000 nm+/?100 nm and/or variations thereof. This is accomplished by positioning a set of cold or hot mirrors in constant optical track with the sun. Such an assembly of cold or hot mirrors allows solar photons carried by light to be split into two distinct bands of frequencies for use requiring such filtering separation.
    Type: Grant
    Filed: June 2, 2009
    Date of Patent: June 11, 2013
    Inventors: Arthur Robert Tilford, Philip Frank Zimmermann
  • Patent number: 8445097
    Abstract: The present invention discloses a multi-layer fluoropolymeric film that is useful as a light capture front sheet in solar modules, and more broadly as an antireflection layer. The present invention further discloses a glass shaped article having a multi-layer fluoropolymeric film disposed upon the surface thereof. The shaped article is useful in applications where it is desirable to reduce reflection of incident light.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: May 21, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Kostantinos Kourtakis, Mark E. Lewittes, Jose Manuel Rodriguez-Parada
  • Publication number: 20130119270
    Abstract: A multi-wavelength light generator includes a broadband light source and a wavelength division device. The multi-wavelength light generator is configured to generate a first output light having a first line width. The wavelength division device is configured to divide a wavelength of the first output light to provide a plurality of second output lights. Each of the second output lights has a second line width narrower than the first line width, and each of the second output lights is used as a light source of each channel of an optical sensor.
    Type: Application
    Filed: November 6, 2012
    Publication date: May 16, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Samsung Electronics Co., Ltd.
  • Publication number: 20130107369
    Abstract: In a hearth liner wherein an evaporation material is adhered to a substrate to form an optical thin film thereon, the present invention is directed to prevent bumping (splashing) when the evaporation material is irradiated by an electron beam from an electron gun to melt and vaporize thereof. A hearth liner of a vacuum evaporation apparatus wherein the electron beam from the electron gun is irradiated on the evaporation material to form an optical thin film on a substrate, wherein the cross-section shape of an evaporation material storage part of the hearth liner is a shallow semicircular (spherical) shape (bowl shape).
    Type: Application
    Filed: April 23, 2012
    Publication date: May 2, 2013
    Applicant: NIHON DEMPA KOGYO CO., LTD.
    Inventors: KEN SEKI, TOSHIMASA NISHI, HIROTO ISHIKAWA
  • Patent number: 8404335
    Abstract: A laminated film includes a structure where each 200 layers or more of a layer composed of a resin A (A layer) and a layer composed of a resin B (B layer) are alternately laminated, wherein a relative reflectance in a wavelength range of 400 nm to 1000 nm is 30% or more, tensile stresses at 100% elongation in a longitudinal direction and a width direction of the film are 3 MPa or more and 90 MPa or less in a tensile test at 150┬░ C., and the number of layers with a layer pair-thickness of 120 nm or more and less than 220 nm is 1.05 times or more to 2.5 times or less the number of layers with a layer-thickness of 220 nm or more and 320 nm or less.
    Type: Grant
    Filed: January 3, 2012
    Date of Patent: March 26, 2013
    Assignee: Toray Industries, Inc.
    Inventors: Syunichi Osada, Wataru Gouda
  • Patent number: 8400616
    Abstract: A laser interference lithography apparatus capable of stitching small exposed areas into a large exposed area includes a body, a laser beam supplying unit, a reflecting mechanism, an L-shaped fixing mechanism and a substrate stage. The laser beam supplying unit fixed onto the body provides a laser beam. The reflecting mechanism is movably and rotatably mounted on the body. The L-shaped fixing mechanism mounted on the body includes a first mounting seat and a second mounting seat. An upright first reflecting mirror is fixed to the first mounting seat. The second mounting seat connected to the first mounting seat fixes a horizontal mask, and is substantially perpendicular to the first mounting seat. The substrate stage, movably mounted on the body and disposed below the second mounting seat, supports a substrate. Thus, a large-area pattern formed by stitching small-area patterns may be obtained.
    Type: Grant
    Filed: July 20, 2010
    Date of Patent: March 19, 2013
    Assignee: National Tsing Hua University
    Inventor: Chien-Chung Fu
  • Publication number: 20130046381
    Abstract: An imaging lens structure and method of imaging are presented. The imaging lens structure comprising a lens region defining an effective aperture of the lens structure. The lens region comprises an arrangement of lens zones distributed within the lens region and comprising zones of at least two different optical functions differently affecting light passing therethrough. The zones of at least two different optical functions are arranged in an interlaced fashion along said lens region corresponding to a surface relief of the lens region such that adjacent lens zones of different optical functions are spaced apart from one another along an optical axis of the lens structure a distance larger than a coherence length of light at least one spectral range for which said lens structure is designed.
    Type: Application
    Filed: February 9, 2011
    Publication date: February 21, 2013
    Inventors: Zeev Zalevsky, Alex Zlotnik, Shai Ben-Yaish, Ofer Limon, Ido Raveh
  • Publication number: 20130017498
    Abstract: A two-beam interference lithography system offers large-area nanopatterning with tunability of pattern periodicities. The tunable feature is achieved by placing two rotatable mirrors in the two expanded beam paths which can conveniently be regulated for the designed pattern periodicities. While the effective interference pattern coverage is mainly determined by the optical coherence length and mirror size, the minimum pattern coverage area is as large as the effective coherence length of the laser and the selected mirror size over a wide range of periodicities.
    Type: Application
    Filed: July 12, 2012
    Publication date: January 17, 2013
    Inventors: Weidong Mao, Ishan Wathuthanthri, Chang-Hwan Choi
  • Publication number: 20120314293
    Abstract: An article includes a light-transmittable substrate having opposite first and second surfaces spaced in a height direction. A first pattern is provided on the first surface of the light-transmittable substrate. A plurality of spaced first lines is provided on a face of the first pattern. A second pattern is provided on the second surface of the light-transmittable substrate. A plurality of spaced second lines is provided on a face of the second pattern. The first lines intersect the second lines when viewed from the face of the first pattern, forming a Moire pattern and creating Moire effect. Light beams passing through the light-transmittable substrate via the first pattern or the second pattern according to a viewing angle of a viewer are refracted to represent a 3D lively figure.
    Type: Application
    Filed: June 10, 2011
    Publication date: December 13, 2012
    Inventor: Chien-Fu Chang
  • Patent number: 8264667
    Abstract: A lithographic apparatus including an exposure unit that exposes parallel lines on a target area of a substrate by projecting two beams of radiation onto the substrate. The two beams of radiation are projected such that they interfere with each other to form the parallel lines. An actuator continuously moves the substrate relative to the exposure unit, while the exposure unit exposes the parallel lines on the target areas on the substrate.
    Type: Grant
    Filed: May 4, 2006
    Date of Patent: September 11, 2012
    Assignee: ASML Netherlands B.V.
    Inventors: Kars Zeger Troost, Johannes Jacobus Matheus Baselmans, James Sherwood Greeneich
  • Publication number: 20120194821
    Abstract: A colorimetric sensor includes an etalon including a first substrate, a second substrate facing the first substrate, a fixed mirror formed on a surface of the first substrate facing the second substrate, and a movable mirror formed on the second substrate so as to face the fixed mirror with a prescribed gap therebetween, a light receiving element that receives a test subject light having passed through the etalon, and a holding member holding the etalon. The etalon includes a light interference area facing the first and second substrates in a plan view as seen in a thickness direction of the substrate, and a protruding area protruding from the light interference area. The holding member holds the etalon at one end side of the protruding area opposite to the light interference area.
    Type: Application
    Filed: January 25, 2012
    Publication date: August 2, 2012
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Takeshi NOZAWA
  • Patent number: 8233220
    Abstract: The invention relates to an optical system for providing on-axis destructive interference of light received from an object along a predetermined system optical axis. The system comprises a receiving and guiding optical structure and a combining optical structure. The receiving and guiding optical structure is for receiving and guiding at least three beams of light received from said object, the receiving and guiding optical structure arranged to provide a relative optical path difference between the at least three beams; the combining optical structure is for combining the at least three beams. According to the invention, a polarization varying optical structure is arranged between the receiving and guiding optical structure and the combining optical structure, for varying a polarization state of the beams relative to each other in order to provide on-axis destructive interference.
    Type: Grant
    Filed: March 26, 2007
    Date of Patent: July 31, 2012
    Assignee: Nederlandse Organisatie Voor Toegepast-natuurwetenschappelijk Onderzoek TNO
    Inventor: Julien Felix Paul Spronck
  • Patent number: 8213084
    Abstract: A fundamental limit to the sensitivity of optical interferometry is thermal noise that drives fluctuations in the positions of the surfaces of the interferometer's mirrors, and thereby in the phase of the intracavity field. A scheme for substantially reducing this thermally driven phase noise is provided in which the strain-induced phase shift from a mirror's optical coating cancels that due to the concomitant motion of the substrate's surface. As such, although the position of the physical surface may fluctuate, the optical phase upon reflection can be largely insensitive to this motion.
    Type: Grant
    Filed: April 1, 2008
    Date of Patent: July 3, 2012
    Assignee: California Institute of Technology
    Inventor: H. Jeff Kimble
  • Publication number: 20120154883
    Abstract: There are provided a lens, a method of fabricating the lens, and a light scanning unit. The lens includes a lens portion having an effective optical surface, and a gate-side flange portion between the lens portion and a gate-side end of the lens. If the lens is disposed between two polarizers configured to polarize light linearly in perpendicular directions and is illuminated in an optical axis direction, interference fringes are generated on the lens, and peripheral interference fringes of the interference fringes extend continuously from the gate-side end and are longer than the gate-side flange portion.
    Type: Application
    Filed: October 6, 2011
    Publication date: June 21, 2012
    Applicant: Samsung Electronics Co., Ltd
    Inventor: Won-young CHO
  • Patent number: RE43702
    Abstract: Microscope with heightened resolution and linear scanning wherein the sample is illuminated with a first and a second illuminating light, whereby the first illuminating light excites the sample, and the second illuminating light is generated through the refraction of coherent light at a periodic structure and displays a periodic structure in a lateral beam direction and in axial beam direction.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: October 2, 2012
    Assignee: Carl Zeiss MicroImaging GmbH
    Inventor: Ralf Wolleschensky
  • Patent number: RE43759
    Abstract: A multiple wavelength light emitting device is provided wherewith the resonance strength and directivity between colors can be easily adjusted for balance. This light emitting device comprises a light emission means 4 for emitting light containing wavelength components to be output, and a semi-reflecting layer group 2 wherein semi-reflecting layers 2R, 2G, and 2B that transmit some light having specific wavelengths emitted from the light emission means and reflect the remainder are stacked up in order in the direction of light advance in association with wavelengths of light to be output. Light emission regions AR, AG, and AB are determined in association with the wavelengths of light to be output.
    Type: Grant
    Filed: June 2, 2000
    Date of Patent: October 23, 2012
    Assignees: Seiko Epson Corporation, Cambridge Display Technology Ltd
    Inventors: Tatsuya Shimoda, Tomoko Koyama, Takeo Kaneko, Jeremy Henley Burroughes
  • Patent number: RE44164
    Abstract: A multiple wavelength light emitting device is provided wherewith the resonance strength and directivity between colors can be easily adjusted for balance. This light emitting device comprises a light emission means 4 for emitting light containing wavelength components to be output, and a semi-reflecting layer group 2 wherein semi-reflecting layers 2R, 2G, and 2B that transmit some light having specific wavelengths emitted from the light emission means and reflect the remainder are stacked up in order in the direction of light advance in association with wavelengths of light to be output. Light emission regions AR, AG, and AB are determined in association with the wavelengths of light to be output.
    Type: Grant
    Filed: June 2, 2000
    Date of Patent: April 23, 2013
    Assignees: Seiko Epson Corporation, Cambridge Display Technology Ltd
    Inventors: Tatsuya Shimoda, Tomoko Koyama, Takeo Kaneko, Jeremy Henley Burroughes
  • Patent number: RE45442
    Abstract: A multiple wavelength light emitting device is provided wherewith the resonance strength and directivity between colors can be easily adjusted for balance. This light emitting device comprises a light emission means 4 for emitting light containing wavelength components to be output, and a semi-reflecting layer group 2 wherein semi-reflecting layers 2R, 2G, and 2B that transmit some light having specific wavelengths emitted from the light emission means and reflect the remainder are stacked up in order in the direction of light advance in association with wavelengths of light to be output. Light emission regions AR, AG, and AB are determined in association with the wavelengths of light to be output.
    Type: Grant
    Filed: April 12, 2011
    Date of Patent: March 31, 2015
    Assignees: Seiko Epson Corporation, Cambridge Display Technology Limited
    Inventors: Tatsuya Shimoda, Tomoko Koyama, Takeo Kaneko, Jeremy Henley Burroughes