Reflector Patents (Class 359/584)
  • Patent number: 11862658
    Abstract: A hybrid multispectral imaging sensor, characterized in that it comprises a photosensitive backside-illumination detector (DET) that is made on a substrate (100) made of InP, and that is formed of a matrix of pixels (105, P1, P2, P3) that are themselves made in a structure based on InGaAs (103), and a filter module (MF) that is formed of a matrix of elementary filters (?1, ?2, ?3) reproducing said matrix of pixels, and that is mounted into contact with said substrate (100), said substrate (100) made of InP having a thickness less than 50 ?m, and preferably less than 30 ?m.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: January 2, 2024
    Assignee: SILIOS TECHNOLOGIES
    Inventors: Stephane Tisserand, Laurent Roux, Marc Hubert, Vincent Sauget
  • Patent number: 11858288
    Abstract: A security article includes an optical component that includes a plurality of optical channels with a Fano resonance characteristic. An optical channel, of the plurality of optical channels, is configured to pass a first portion of a first set of light beams (that are associated with a first wavelength range) when the first set of light beams falls incident on at least one of a first surface or a second surface of the optical channel, reflect a second portion of the first set of light beams when the first set of light beams falls incident on the first surface of the optical channel, and reflect at least a portion of a second set of light beams (that are associated with a second wavelength range) when the second set of light beams falls incident on the second surface of the optical channel.
    Type: Grant
    Filed: May 12, 2021
    Date of Patent: January 2, 2024
    Assignee: VIAVI Solutions Inc.
    Inventor: William D. Houck
  • Patent number: 11726354
    Abstract: A display device including a first substrate, a pixel disposed on the first substrate and including first, second and third sub-pixel electrodes adjacent to each other, a second substrate spaced from the first substrate, a color conversion layer disposed on the second substrate and with a first wavelength conversion layer overlapping with the first sub pixel electrode and a second wavelength conversion layer overlapping with the second sub pixel electrode, a transmissive layer including a first sub-transmissive layer overlapping with the third sub-pixel electrode and a second sub-transmissive layer disposed between the first wavelength conversion layer and the second wavelength conversion layer, and a planarization layer disposed on the color conversion layer and the transmissive layer. A method of manufacturing a display device having a flatter planarization layer with reduced variations in thickness is also disclosed.
    Type: Grant
    Filed: May 11, 2021
    Date of Patent: August 15, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin Soo Jung, Young Gu Kim, Taek Joon Lee, Hye Lim Jang, Baek Kyun Jeon
  • Patent number: 11726238
    Abstract: Reflective stacks including heat spreading layers are described. In particular, reflective stacks including polymeric multilayer reflectors. Heat spreading layers may include natural or synthetic graphite or copper.
    Type: Grant
    Filed: September 1, 2021
    Date of Patent: August 15, 2023
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Clinton L. Jones, Jeremy O. Swanson, Brian A. Kinder, Sara Jouzdani
  • Patent number: 11709300
    Abstract: An optical filter includes a plurality of optical channels that each have a Fano resonance characteristic. A first optical channel, of the plurality of optical channels, is configured to pass a first portion of a first set of light beams (that are associated with a first wavelength range) and reflect a second portion of the first set of light beams when the first set of light beams falls incident on a particular surface of the first optical channel. A second optical channel, of the plurality of optical channels, is configured to pass a first portion of a second set of light beams (that are associated with a second wavelength range) and reflect a second portion of the second set of light beams when the second set of light beams falls incident on a particular surface of the second optical channel.
    Type: Grant
    Filed: May 12, 2021
    Date of Patent: July 25, 2023
    Assignee: VIAVI Solutions Inc.
    Inventor: William D. Houck
  • Patent number: 11684514
    Abstract: A laser module produces pulsed laser energy in a wavelength range of 495-580 nm based on duration, peak power, and interval parameter information. An envelope timer controls the total duration of all micropulses based on the duration and interval parameters via a pulse-width modulated (PWM) output to a micropulse timer, which in turn outputs a PWM micropulse signal. A light emitting diode driver outputs a laser current through a diode based on the micropulse signal and a dimming signal to produce the pulsed laser energy. The integrator compares a signal corresponding to a detected power level of the laser energy to a signal corresponding to the peak power parameter and outputs the dimming signal. The resulting micropulse durations are in the range of 50 to 300 microseconds for periods of about 2 milliseconds, with a duty cycle ranging from 5 to 15%. The overall pulse parameters are duration from 10 microseconds to 1.5 seconds, with periods of any value.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: June 27, 2023
    Assignee: Norlase ApS
    Inventors: Greg Fava, Bjarke Goth, Peter Skovgaard
  • Patent number: 11630260
    Abstract: A method of fabricating a compound light-guide optical element (LOE) is provided. A bonded stack of a plurality of LOE precursors and a plurality of transparent spacer plates alternating therebetween is bonded to a first optical block having a plurality of mutually parallel obliquely angled internal surfaces. The block is joined to the stack such that first plurality of partially reflective internal surfaces of the block is non-parallel to the internal surfaces of the LOE precursor. After bonding, a second optical is thereby formed. At least one compound LOE is sliced-out of the second optical block by cutting the second block through at least two consecutive spacer plates having a LOE precursor sandwiched therebetween.
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: April 18, 2023
    Assignee: LUMUS LTD.
    Inventors: Shimon Grabarnik, Tsion Eisenfeld
  • Patent number: 11609359
    Abstract: One or more aspects of the present disclosure provide articles of manufacture and components of articles that incorporate an optical element that imparts a structural color to the component or the article. The component comprises a thermoplastic polymeric material, and can include or be made to have a textured surface.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: March 21, 2023
    Assignee: NIKE, INC.
    Inventors: Jennifer Bee, Jeremy Gantz, Kim Kovel
  • Patent number: 11530161
    Abstract: The invention concerns reflective opaque panels that can be used as facing panels or decorative panels. They consist of a substrate coated with a stack of layers comprising, in the following order, at least (i) a transparent substrate (S), (ii) a first dielectric layer which is a high refractive index dielectric layer (H1), (iii) a second dielectric layer which is a low refractive index dielectric layer (L1), and (vi) a single chromium-based layer.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: December 20, 2022
    Assignee: AGC GLASS EUROPE
    Inventor: Stijn Mahieu
  • Patent number: 11422387
    Abstract: Provided is an eyeglass lens having a hard layer on a lens substrate and a pattern layer having a laminate structure in which a plurality of layers are laminated on the hard layer, wherein the pattern layer includes: a metal oxide layer laminated directly on a surface of the hard layer; a metal layer; and a metal oxide layer located at the uppermost surface of the pattern layer.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: August 23, 2022
    Assignee: HOYA LENS THAILAND LTD.
    Inventor: Keiichi Suzuki
  • Patent number: 11372137
    Abstract: Textured cover assemblies for electronic devices are disclosed. The textured cover assemblies may be placed over a display and may provide anti-glare and anti-reflection properties to the electronic device.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: June 28, 2022
    Assignee: APPLE INC.
    Inventors: Mingxia Gu, Janos C. Keresztes, Jun Qi, Jungwook Park, Victor H. Yin, Yanming Li
  • Patent number: 11215813
    Abstract: An image display device element, a filter element, and a reflective element allow a brightened display screen displaying red, green, blue, and composite colors through use of a single light-emitting portion. The image display device has a first element where a boundary wavelength between light absorption and light transmission or between reflection in an oblique direction and light transmission is variable or fixed and a second element where a wavelength region to be reflected is variable or fixed. The boundary wavelength of the first element and/or the wavelength region of the second element is variable. A positional relationship exists where light transmitted by the first element is incident on the second element. Controlling overlap between light transmission bands of the elements through varying the boundary wavelength of the first element and/or the wavelength region of the second element varies a band and amount of light reflected by the second element.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: January 4, 2022
    Inventor: Kazuhiro Yamamoto
  • Patent number: 11118062
    Abstract: A LiDAR reflecting dark colored pigment includes a core layer formed from a reflecting material and a first layer formed from a first absorber material or a first dielectric material extending across the core layer. A second layer formed from a second absorber material different than the third absorber material extends across the first layer and a third layer formed from a third absorber material or a second dielectric material extends across the second layer. The third absorber material is different than the second absorber material. The LiDAR reflecting dark colored pigment reflects less than 10% of incident visible electromagnetic radiation and more than 60% of incident near-IR electromagnetic radiation with wavelengths between and including 850 nm and 950 nm for all incident angles of the visible and near-IR electromagnetic radiation between and including 0° and 45°. A color reflected by the multilayer stack has a lightness in CIELAB color space less than or equal to 40.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: September 14, 2021
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Debasish Banerjee, Cynthia Gazepis Templeman
  • Patent number: 11079280
    Abstract: Apparatus and methods for measuring mode spectra for ion-exchanged glass substrates having a steep index region are disclosed. An interfacing fluid is provided between the coupling prism and the glass substrate. The interfacing fluid thickness is selected so that the variation in modal birefringence with fluid thickness is reduced to an acceptable level. The coupling prism can include a prism coating on the coupling surface so that the substrate-prism interface includes the prism coating. The coupling prism can also include stand-off members that serve to define the thickness of the interfacing fluid.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: August 3, 2021
    Assignee: CORNING INCORPORATED
    Inventors: Rostislav Vatchev Roussev, Vitor Marino Schneider
  • Patent number: 10962695
    Abstract: An optical reflection film in which haze is reduced and cracking hardly occurs. An optical reflection film is provided. An optical reflection film includes at least one unit formed by laminating a low refractive index layer and a high refractive index layer on a substrate. The high refractive index layer contains zirconium oxide particles, and the low refractive index layer contains silicon oxide particles and two or more cationic polymers.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: March 30, 2021
    Assignee: KONICA MINOLTA, INC.
    Inventors: Akiyoshi Kimura, Yoichi Saito
  • Patent number: 10948760
    Abstract: A liquid crystal display panel includes a light adjusting layer. The light adjusting layer is configured to reduce a yellowing degree of a peripheral display area. The light adjusting layer is located in the peripheral display area in a display area of the liquid crystal display panel, and the peripheral display area is located at a periphery of an intermediate display area in the display area.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: March 16, 2021
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zijun Cao, Ruifang Du
  • Patent number: 10904514
    Abstract: A depth camera assembly (DCA) includes a polarized structured light generator, an imaging device and a controller. The structured light generator illuminates a local area with one or more polarized structured light patterns in accordance with emission instructions from the controller. The structured light generator comprises an illumination source, an acousto-optic device, and a polarizing element. The acousto-optic device generates a structured light pattern from an optical beam emitted from the illumination source. The polarizing element generates the one or more polarized structured light patterns using the structured light pattern. The imaging device captures portions of the one or more polarized structured light patterns scattered or reflected from the local area. The controller determines depth information, degree of polarization and index of refraction map for the local area based at least in part on the captured portions of the one or more scattered or reflected polarized structured light patterns.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: January 26, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Qing Chao, Michael Hall
  • Patent number: 10818712
    Abstract: Provided is a solid-state image pickup device and a method of manufacture, and an electronic device capable of suppressing occurrence of a transmission wavelength shift with a simpler design. The solid-state image pickup device includes a multilayer film filter having a laminated structure in which a transmission wavelength adjustment layer is sandwiched between a first multilayer film layer and a second multilayer film layer. The transmission wavelength adjustment layer is formed such that at least two types of dielectrics having different refractive indexes mixedly exist, and an effective refractive index is determined according to a ratio of the mixture. The effective refractive index of the transmission wavelength adjustment layer gradually increases from a chip central portion in which an incident angle of light emitted onto the multilayer film filter is small toward a chip end portion in which the incident angle of light is large.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: October 27, 2020
    Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Tetsuji Yamaguchi, Atsushi Toda
  • Patent number: 10814801
    Abstract: An emblem for vehicles includes a substrate formed of a light-transmissive resin, the substrate having a proximal face and a distal face and a decoration layer applied to the proximal face, the decoration layer including a metalloid or a metalloid alloy deposited on the surface of the proximal face, a transparent frontal cover overlying the decoration layer, and a light source that illuminates the substrate, so that the light from the light source crosses the transparent frontal cover. This permits the emblem to maintain its metallic aspect in any lighting condition, so that the decorative function is be improved by adding illumination in appropriate conditions while preserving its 3-D image.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: October 27, 2020
    Assignee: Zanini Auto Grup, S.A.
    Inventors: José Sanahuja Clot, Augusto Mayer Pujadas
  • Patent number: 10539727
    Abstract: A method of making a multi-layered film includes depositing thin film layers onto a first side of a double-sided transparent substrate. The thin film layers are transparent, and two adjacent layers of said plurality of thin film layers have different refractive indices. One or more absorbers are deposited at an interface formed between two of the thin film layers that are adjacent to one another, or formed by the first side of the substrate and one of the thin film layers. The absorbers absorb selected wavelengths of incident light and reflect part of the incident light after inducing a phase shift. The location of the interface is selected to provide desired wavelengths of absorbed and reflected light. The multi-layered film has a first appearance when viewed from the first side of the substrate and a second appearance when viewed from the second side of the substrate.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: January 21, 2020
    Assignee: President and Fellows of Harvard College
    Inventors: Grant England, Calvin Russell, Theresa Kay, Elijah Shirman, Ian Burgess, Nicolas Vogel, Joanna Aizenberg
  • Patent number: 10513097
    Abstract: A decorative sheet is caused to emit light from part of the front surface to improve the design features. A decorative sheet 1 according to an embodiment includes a first refractive index layer (high refractive index layer) 11 having a first refractive index, a decorative layer 14, a second refractive index layer (low refractive index resin layer) 12 that has a second refractive index lower than the first refractive index and is provided between the first refractive index layer and the decorative layer, and a light diffusion layer 15 that is provided in partial contact with one surface of the first refractive index layer and diffuses light entering from the first refractive index layer so that light is released from part of the front surface of the decorative sheet. A resin molded body 21 may be integrally laminated on the back surface side of the decorative sheet 1 to form a decorative molded article 2.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: December 24, 2019
    Assignee: SEIREN CO., LTD.
    Inventors: Akihide Suzuki, Hidekazu Shiomi, Shoichi Takeshima, Hajime Arai
  • Patent number: 10444414
    Abstract: Provided is a silver reflector capable of maintaining a high reflectivity achieved by using silver even under a hot and humid environment, wherein a film stress can be suppressed and a face deformation of an optical surface can be reduced, and a manufacture method therefor. A film stress after a reflection film is formed is within a range of +100 MPa to ?100 MPa, and a film stress after the reflection film is subjected to a hot and dry environment at 110° C. for 24 hours and a film stress after the reflection film subjected to the environment is subjected to a hot and humid environment at 85° C. and 85% RH for 24 hours are within a range of +100 MPa to ?100 MPa, and also an absolute value of a change amount between the former and latter film stress values is 40 MPa or lower.
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: October 15, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventors: Munenori Kawaji, Shingo Nakamura, Tomokazu Taguchi
  • Patent number: 10377664
    Abstract: A coated glass article including a glass substrate and a coating deposited over the glass substrate. The coating includes a first inorganic metal oxide layer deposited over a major surface of the glass substrate. A second inorganic metal oxide layer is deposited over the first inorganic metal oxide layer. A third inorganic metal oxide layer is deposited over the second inorganic metal oxide layer. A fourth inorganic metal oxide layer is deposited over the third inorganic metal oxide layer. The coated glass article exhibits a total visible light transmittance (Illuminant C) of 40% or more and a visible light reflectance (Illuminant C) of 30% or more.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: August 13, 2019
    Assignee: Pilkington Group Limited
    Inventor: Srikanth Varanasi
  • Patent number: 10254452
    Abstract: A reflector is discussed. A reflector can include a first reflective layer pair reflecting red light, a second reflective layer pair reflecting green light and a third reflective layer pair reflecting blue light, wherein the first to third reflective layer pairs are formed as a plurality of inorganic layers, the first, second and third reflective layer pair are sequentially stacked iteratively, the first reflective layer pair includes a stop band corresponds to red color wavelength, the second reflective layer pair includes a stop band corresponds to green color wavelength, and the third reflective layer pair includes a stop band corresponds to blue color wavelength.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: April 9, 2019
    Assignee: LG DISPLAY CO., LTD.
    Inventors: YoungHoon Noh, Goeun Jung
  • Patent number: 10209415
    Abstract: A dielectric mirror is provided that, on the one hand exhibits a high destruction threshold when being irradiated with ultrashort high-power laser pulses, and on the other hand has a large bandwidth of group delay dispersion. The dielectric mirror includes a layer stack with a sequence of layers having different refractive indices, which act as a reflecting interference filter, wherein the layers are formed of at least three different materials exhibiting different destruction thresholds.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: February 19, 2019
    Assignee: SCHOTT AG
    Inventor: Dirk Apitz
  • Patent number: 10175039
    Abstract: The present invention provides a method of authenticating the provenance of an article marked with a removable transparent polymer film comprising measuring the thickness of the removable transparent film while still located on the article or of a layer within the film while still located on the article by white light interferometry. Alternatively, or in addition, the method comprises measuring the birefringence of the removable transparent polymer film while still located on the article or of a layer within the film while still located on the article.
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: January 8, 2019
    Assignee: INNOVIA FILMS LIMITED
    Inventors: Stephen Langstaff, Robert Stewart
  • Patent number: 10146051
    Abstract: An optical device includes a digital visual data system, a forward optical assembly, and an elevation manual adjustment and a windage manual adjustment. The elevation manual adjustment and the windage manual adjustment are configured to adjust a position of a movable optical assembly containing an optical merging assembly independently moveable in relation to the forward optical assembly. The optical merging assembly includes a first wedge-shaped component receiving optical data from the forward optical assembly and a second wedge-shaped component adjacent to the first wedge-shaped component that receives and transmits the optical data from the first wedge-shaped component through the second wedge-shaped component toward an eyepiece assembly and that reflects digital visual data from a micro-display toward the eyepiece assembly to present a merged data view when viewed through the eyepiece assembly.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: December 4, 2018
    Assignee: JSC Yukon Advanced Optics Worldwide
    Inventor: Aliaksandr Alsheuski
  • Patent number: 10106076
    Abstract: A warning indicator system for a vehicle side-view mirror includes light sources disposed to emit light in patterns and/or colors visible through a partially light-reflective surface. One or more processors are operatively configured to actuate the light sources in predetermined sequences defining a stealth mode, a pursuit mode, and a traffic advisor mode. The partially light-reflective surface may be a light transmitting substrate having a coating of a reflective substance provided in a thickness allowing at least a partial transmission of light therethrough. The light sources may be printed light-emitting diodes (LEDs). Disposing the light sources in desired patterns to emit desired colors on actuation in a predetermined sequence allows configuring the side mirrors to emit visible light signals indicative of the stealth mode, a pursuit mode, and a traffic advisor mode.
    Type: Grant
    Filed: February 15, 2016
    Date of Patent: October 23, 2018
    Assignee: Ford Global Technologies LLC
    Inventors: Paul Kenneth Dellock, Stuart C. Salter, Doug H. Randlett, Matthew C. Mullen, Christopher Charles Hunt
  • Patent number: 10087339
    Abstract: According to some embodiments, a structural colorant is provided including a semi-continuous structure formed by multiple layers of a first polymer. In some embodiments, air gaps are interspersed between the layers of the first polymer. In some embodiments, a second polymer is interspersed between the layers of the first polymer. In some embodiments, the semi-continuous structure has a center and at least two planes of symmetry through its center.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: October 2, 2018
    Assignee: The Sherwin-Williams Company
    Inventor: Bor-Kai Hsiung
  • Patent number: 10073191
    Abstract: A filter to transmit incident radiation at a predetermined incidence angle includes a plurality of photonic crystal structures disposed substantially along a surface normal direction of the filter. The photonic crystal structure includes a multilayer cell that comprises a first layer having a first dielectric permittivity, and a second layer having a second dielectric permittivity different from the first dielectric permittivity. The first layer and the second layer define a Brewster angle substantially equal to the predetermined incidence angle based on the first dielectric permittivity and the second permittivity. Each photonic crystal structure in the plurality of photonic crystal structures defines a respective bandgap, and the respective bandgaps of the plurality of photonic crystal structures, taken together, cover a continuous spectral region of about 50 nm to about 100 mm.
    Type: Grant
    Filed: February 24, 2015
    Date of Patent: September 11, 2018
    Assignee: Massachusetts Institute of Technology
    Inventors: Yichen Shen, Dexin Ye, Ivan Celanovic, Steven G. Johnson, John D. Joannopoulos, Marin Soljacic
  • Patent number: 10001588
    Abstract: The disclosure is directed to enhanced silver coated aluminum substrates for use as optical mirrors in which galvanic corrosion between the silver and aluminum is prevented and a method of making such silver coating and mirrors. The optical mirror according to the disclosure has an in-situ formed “barrier” layer inserted between the aluminum substrate and the silver layer. In addition, selected layers are densified by carrying out their deposition using a high power RF ion source during their deposition.
    Type: Grant
    Filed: August 6, 2014
    Date of Patent: June 19, 2018
    Assignee: Corning Incorporated
    Inventors: Jason Ballou, Frederick Gagliardi
  • Patent number: 9945984
    Abstract: An optical system includes an optical element and an imaging device. The optical element has a surface on which a plurality of sub-wavelength structure bodies are formed. The imaging device has an imaging region which senses light via the optical element. The surface of the optical element has one or two or more sections that scatter incident light and generate scattered light. A sum total of components of the scattered light reaching the imaging region is smaller than a sum total of components thereof reaching regions other than the imaging region.
    Type: Grant
    Filed: March 19, 2012
    Date of Patent: April 17, 2018
    Assignee: SONY CORPORATION
    Inventors: Kazuya Hayashibe, Yutaka Muramoto, Hiroshi Tazawa, Shunichi Kajiya, Yu Nomura, Sohmei Endoh, Takashi Mabuchi
  • Patent number: 9888964
    Abstract: A method and an apparatus according to an embodiment of the invention includes a reflector and an optical fiber end portion disposed within a capillary for use in side-firing optical fibers. The reflector surface can be coated with a multilayer dielectric coating to increase the amount of side-fired laser energy. An outer member or cap can be used to protect the capillary when being inserted through a catheter or endoscope. The endoscope is then at least partially inserted into a patient's body to provide laser-based medical treatment. Multiple grooves can be defined on an outer surface of the optical fiber buffer layer to increase the surface area and improve the mechanical strength of the coupling between the optical fiber and the capillary. In some embodiments, the outer member or cap can also be coupled to the grooved surface portion of the optical fiber buffer layer.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: February 13, 2018
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Brian M. Hanley, Jessica Hixon, Christopher L. Oskin, Edward Sinofsky
  • Patent number: 9866929
    Abstract: A high capacity node includes a plurality of transceivers each with a transmitter configured to support a wavelength within a full transparent window of one or more optical fibers; and one or more optical amplifiers covering the full transparent window, wherein the one or more optical amplifiers comprise one of (i) a single ultra-wideband amplifier covering the full transparent window and (ii) a plurality of amplifiers each supporting a different band of the full transparent window.
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: January 9, 2018
    Assignee: Ciena Corporation
    Inventors: Michael Y. Frankel, John P. Mateosky, Michael H. Shahine, Joseph Berthold
  • Patent number: 9851528
    Abstract: A stable single-carrier optical spring, comprising a pair of dielectric mirrors, each having a dielectric coating, and positioned to form a standing wave from an incident optic field. The dielectric coating has a plurality of layers, where at least the first layer is sized to be an odd multiple of half a wavelength of the laser beam, to feature an opposite-sign photo-thermal effect due to the detailed interaction of the optical field with the coating. This results in an opposite-sign photo-thermal effect at the optical spring frequency. The dampening effect is large enough to stabilize the radiation pressure based optical spring, resulting in a statically and dynamically stable optical spring. As a result this coating allows stable locking of a cavity with a single laser frequency using radiation pressure feedback.
    Type: Grant
    Filed: June 6, 2016
    Date of Patent: December 26, 2017
    Assignee: SYRACUSE UNIVERSITY
    Inventor: Stefan Ballmer
  • Patent number: 9841535
    Abstract: Provided is an antireflection film having excellent abrasion resistance. In the antireflection film, a hydrogenated carbon film as a first layer is formed on a surface of an optical substrate. A MgF2 film as a second layer having a lower refractive index than the first layer is formed on the first layer. Likewise, a third layer formed of the hydrogenated carbon film, a fourth layer formed of the MgF2 film, and a fifth layer formed of the hydrogenated carbon film are formed. During the formation of the hydrogenated carbon film, a mixed gas of argon and hydrogen is supplied to a vacuum chamber such that some of C—C bonds in the film are replaced with C—H bonds. Due to the C—H bonds, an antireflection film having excellent abrasion resistance and adhesiveness and having a low refractive index can be obtained.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: December 12, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Hiroki Takahashi, Takeshi Iida
  • Patent number: 9766536
    Abstract: The present disclosure provides a photolithography mask. The photolithography mask includes a substrate that contains a low thermal expansion material (LTEM). A multilayer (ML) structure is disposed over the substrate. The ML structure is configured to reflect radiation. The ML structure contains a plurality of interleaving film pairs. Each film pair includes a first film and a second film. The first film and the second film have different material compositions. Each film pair has a respective thickness. For at least a subset of the plurality of the film pairs, the respective thicknesses of the film pairs change randomly along a predefined direction.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: September 19, 2017
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chih-Tsung Shih, Jeng-Horng Chen, Shinn-Sheng Yu, Anthony Yen
  • Patent number: 9753199
    Abstract: A variable wavelength interference filter includes a stationary substrate including a stationary reflecting film and a stationary electrode, and a movable substrate including a movable reflecting film and a movable electrode, the stationary electrode and the movable electrode are disposed outside an optical interference region where the stationary reflecting film and the movable reflecting film overlap each other in a filter plan view, an inner peripheral edge of the stationary electrode is located nearer to the optical interference region than an outer peripheral edge of the movable electrode, and an outer peripheral edge of the stationary electrode is located further from the optical interference region than an outer peripheral edge of the movable electrode.
    Type: Grant
    Filed: April 10, 2013
    Date of Patent: September 5, 2017
    Assignee: Seiko Epson Corporation
    Inventors: Teruyuki Nishimura, Akira Sano
  • Patent number: 9738105
    Abstract: Security documents often incorporate optically variable devices to prevent or hinder counterfeiters. Disclosed herein are layered optically variable devices such as color-shift foils, and methods for their production and use. Such devices afford new techniques for a user of a security document to check quickly and easily whether the security document is a legitimate document or a counterfeit copy.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: August 22, 2017
    Assignee: Nanotech Security Corp.
    Inventors: Charles Douglas MacPherson, Bruce Alfred Hardwick
  • Patent number: 9703209
    Abstract: An optical element comprises a reflecting coating on a substrate. The reflecting coating contains boron and can have a thickness of more than 50 nm.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: July 11, 2017
    Assignee: Carl Zeiss SMT GmbH
    Inventor: Vitaliy Shklover
  • Patent number: 9651725
    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 operate substantially as a reflective polarizer; in the second zone they operate substantially as a mirror. The layers may thus provide a first reflective characteristic in the first zone wherein normally incident light of one polarization state is substantially reflected and normally incident light of an orthogonal polarization state is substantially transmitted, and a second reflective characteristic in the second zone wherein normally incident light of any polarization state is substantially reflected. The film may have a first thickness in the first zone that is substantially the same as a second thickness in the second zone. Alternatively, the second thickness may be substantially less than the first thickness. Related methods, articles, and systems are also disclosed.
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: May 16, 2017
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: William W. Merrill, Douglas S. Dunn
  • Patent number: 9551818
    Abstract: A broadband partial reflector includes a first multilayer polymeric optical film having a total number of optical repeating units from a first side to a second side of the first multilayer polymeric optical film and a second multilayer polymeric optical film having a total number of optical repeating units from a first side to a second side of the second multilayer polymeric optical film and an intermediate layer on the second side of the multilayer polymeric optical film separates the first multilayer polymeric optical film from the second multilayer polymeric optical film. The first multilayer polymeric optical film has a first baseline optical repeating unit thickness profile and a first apodized optical repeating unit thickness profile monotonically deviating from the first baseline optical repeating unit thickness profile and defining the second side of the first multilayer polymeric optical film.
    Type: Grant
    Filed: October 17, 2012
    Date of Patent: January 24, 2017
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Michael F. Weber, Timothy J. Nevitt, John A. Wheatley
  • Patent number: 9477017
    Abstract: A method for structuring an omnidirectional non-metal mirror for any predetermined wavelength or range of wavelengths. The mirror having at least two layers of different non-metal materials, with an elementary matrix associated to each layer, including physical parameters of the layer and parameters of the light passing through the layer.
    Type: Grant
    Filed: December 1, 2014
    Date of Patent: October 25, 2016
    Inventors: Francoise Axel, Jacques Peyriere
  • Patent number: 9323042
    Abstract: Security documents often incorporate optically variable devices to prevent or hinder counterfeiters. Disclosed herein are layered optically variable devices such as colour-shift foils that employ a piezoelectric layer, and methods for their production and use. Such devices afford new techniques for a user of a security document to check quickly and easily whether the security document is a legitimate document or a counterfeit copy by placing an electrical potential difference across the security document.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: April 26, 2016
    Assignee: Nanotech Security Corp.
    Inventor: Charles Douglas MacPherson
  • Patent number: 9266385
    Abstract: A molded resin product includes a substrate made of a transparent resin, opaque coating film disposed on rear surface of the substrate except for an area set aside for a patterned portion, a transparent resin material disposed in the area set aside for the patterned portion on the rear surface of the substrate, and an opaque reflection coating or a half-reflective coating laminated to the transparent resin material. Under this configuration, the patterned portion looks as if it pops up from the rear surface of the substrate. If a half-reflective coating is used, the pattern is visible through the half-reflective coating when the pattern is viewed from the rear surface of the lid of a molded resin product.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: February 23, 2016
    Assignee: YOSHINO KOGYOSHO CO., LTD.
    Inventors: Kazuo Suzuki, Hideyoshi Kamashima, Takayuki Sunagawa, Shinji Shimada
  • Patent number: 9240663
    Abstract: A mode-locked fiber MOPA delivers pulses of laser-radiation. A super-continuum generator including a bulk spectral-broadening element and a negative group-delay dispersion (NGDD) device is arranged to receive a pulse from the MOPA and cause the pulse to make a predetermined number of sequential interactions with the broadening element and the NGDD device. After making the predetermined interactions, the pulse is delivered from the super-continuum generator with a very broad spectral-bandwidth and a very short duration.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: January 19, 2016
    Assignee: Coherent, Inc.
    Inventors: Norman Hodgson, Dmitri Simanovski, Andrei Starodoumov
  • Patent number: 9235052
    Abstract: The present invention provides a laser frequency adjustment method and a laser frequency adjustment system. The laser frequency adjustment method includes: (1) providing a primitive laser pulse (10); (2) using a beam splitter (20) to split the primitive laser pulse (10) into a first sub-laser pulse (11) and a second sub-laser pulse (12); (3) using a plurality of reflectors (30) to reflect the first sub-laser pulse (11) to a location where the second sub-laser pulse (12) exits the beam splitter (20) and making the first sub-laser pulse (11) passing through an optical length extension device (40) during the transmission of the first sub-laser pulse (11); and (4) superimposing the first sub-laser pulse (11) and the second sub-laser pulse (12) and using a compensator sheet (50) to adjust the transmission direction of the superimposed laser pulse (13).
    Type: Grant
    Filed: November 13, 2013
    Date of Patent: January 12, 2016
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Xiang Zhang
  • Patent number: 9228897
    Abstract: Systems, methods, and devices relating to optical imaging systems for gathering data on atmospheric trace gas emissions from a satellite. An optical system used in the satellite has a Fabry-Perot interferometer coupled to a suitable telescope. The interferometer is a wide angle Fabry-Perot interferometer which creates a fringing pattern in concentric circles with each fringe being a different wavelength on the imaging system. A filter is used with the optical system and allows multiple adjacent modes in a selected spectral range to pass through the interferometer to the imaging system. Each pixel in the imaging system collects light at multiple wavelengths within the selected spectral range. The optical system gathers multiple images of the target area allowing light from the target area to be collected at multiple different wavelengths. Different absorption data for different atmospheric trace gases can be gathered in a single satellite pass over the target area.
    Type: Grant
    Filed: May 1, 2015
    Date of Patent: January 5, 2016
    Inventors: James J Sloan, Berké Durak, David Gains, Francesco Ricci, Jason McKeever, Joshua Lamorie, Mark Sdao, Vincent Latendresse, Jonathan Lavoie, Roman Kruzelecky
  • Patent number: 9188732
    Abstract: A display device and a method of fabricating a reflective sheet for the same are provided. The display device includes: a display panel to display an image, a plurality of light emitting diodes (LEDs) to: generate and supply light to the display panel, a light guide plate to guide the light to the display panel, and a reflective sheet to reflect light toward a cover bottom below the LEDs toward the light guide plate, the reflective sheet including: a reflective layer, first and second skin layers respectively on upper and lower portions of the reflective layer, the first and second skin layers each including an embossing surface including a plurality of first reflective patterns to: prevent adhesion between the reflective layer and the light guide plate, and increase efficiency of light, and the reflective layer including a plurality of second reflective patterns, each including a filler in an air layer.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: November 17, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Sang-Hyun Lee, Byoung-Ku Kim, Won-Taek Moon, Bo-Ra Kim, Su-Jin Chang
  • Publication number: 20150138642
    Abstract: A hybrid omnidirectional structural color pigment. The pigment exhibits a visible color to the human eye and has a very small or non-noticeable color shift when exposed to broadband electromagnetic radiation (e.g. white light) and viewed from angles between 0 and 45° relative to the normal of an outer surface of the pigment. The pigment is in the form or a multilayer stack that has a reflective core layer and at least two high index of refraction (nh) layers. One of the nh layers can be a dry deposited nh dielectric layer that extends across the reflective core layer and one of the layers can be a wet deposited nh outer protective coating layer. An absorber layer that extends between the dry deposited nh dielectric layer and the wet deposited nh outer protective layer can also be included.
    Type: Application
    Filed: January 28, 2015
    Publication date: May 21, 2015
    Inventors: Debasish Banerjee, Songtao Wu, Khoa Vo