By Actinic Radiation (e.g., Photochromic) Patents (Class 359/241)
  • Patent number: 10961402
    Abstract: A photochromic mixture including a photochromic material and a thermosetting transparent polymer material, which are uniformly mixed and dissolved in a solvent, is provided. A formation method of a photochromic device based on the photochromic mixture and a light-transmissive head-mounted display device with the photochromic device are further provided. In the photochromic mixture, the change in the structure of the photochromic material under UV light and room light causes a significant change in its absorption spectrum so the color changes. This property is utilized for the benefits: First, the contrast of the head-mounted display device under strong light irradiation is improved. The display effect is enhanced. Second, the damage to human eye by UV light at the natural environment is reduced. Third, under the same optical requirement, the required energy consumption of self-light-emitting elements in the light-transmissive head-mounted display device is correspondingly reduced.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: March 30, 2021
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Huafei Xie
  • Patent number: 10955664
    Abstract: A transparent display provides eye protection from lasers and other high intensity light sources. The transparent display allows users to view objects clearly through the display while also presenting text, graphics or video on the display surface. Simultaneously, the display assembly comprises a component that provides eye protection against high power radiation sources. The transparent display with eye protection provides both protection from high power light sources and an additional cockpit display surface for presentation of information including graphical images, symbology, video, text, and other data.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: March 23, 2021
    Assignee: L3 TECHNOLOGIES, INC.
    Inventors: Danny J. O'Connell, Daniel L. McDavitt, James S. Parker, Sanjay Tripathi
  • Patent number: 10866455
    Abstract: The present invention is directed towards a display element comprising a photochromic-dichroic compound and a dichroic compound, the display element having a first absorption state and a second absorption state and being operable for switching from the first absorption state to the second absorption state in response to actinic radiation and to revert back to the first absorption state in response to actinic radiation and/or thermal energy, wherein the first absorption state has a transmittance percentage of 50% to 80%, and the second absorption state has a transmittance percentage of 10% to 50%. The invention is further directed to display devices comprising the display element, and methods of making the display element.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: December 15, 2020
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Anil Kumar, Kevin W. Seybert
  • Patent number: 10823373
    Abstract: A lamp includes a variable transmissive film and a light source arranged to transmit light through the variable transmissive film. The variable transmissive film includes an encapsulated dispersion containing a plurality of electrically charged particles and a fluid, the charged particles being movable by application of an electric field and capable of being switched between an open state and a closed state. In some embodiments, one portion of the variable transmission film is in the open state and one portion is in the closed state, thereby allowing light from the source to be shaped, e.g., into a spotlight.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: November 3, 2020
    Assignee: E Ink Corporation
    Inventors: Antranig Baronian, Brian D. Bean, George G. Harris
  • Patent number: 10824043
    Abstract: An optical modulation device and an apparatus including the same are provided. The optical modulation device may include a reflector, a nano-antenna array placed opposite to the reflector, and an active layer that is placed between the reflector and the nano-antenna array. The optical modulation device may further include a first insulating layer placed between the reflector and the active layer, a second insulating layer placed between the active layer and the nano-antenna array, and a wiring structure that electrically contacts the active layer. The wiring structure may be provided in at least one of a first place between the active layer and the first insulating layer and a second place between the active layer and the second insulating layer.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: November 3, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Junghyun Park, Sangwook Kim, Sunil Kim
  • Patent number: 10723883
    Abstract: The present invention discloses the spiropyran compound of formula (I), process for preparation thereof and a composition comprising spiropyran compound of formula (I) on a support, wherein said support selected from polymers such as Poly (ethylene oxide), Polydimethylsiloxane (PDMS), Ethylene propylene diene monomer (EPDM).
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: July 28, 2020
    Assignee: Council of Scientific and Industrial Research
    Inventors: Nithyanandhan Jayaraj, Ananthan Alagumalai, Pooja Ramesh Kayasth
  • Patent number: 10695145
    Abstract: A system for performing a scanning session of a patient's body, the system comprising: a radiation source; a radiation sensor; a patient positioner for placing the patient between the radiation source and the radiation sensor in a fixed position during each scan; at least one Pseudo-Random Grid (PRG) comprising randomly spaced perpendicular gridlines, the PRG being at least partially radiopaque and positioned between the radiation source and the radiation sensor in a fixed manner with respect to the patient positioner during the scanning session, wherein at least one of said radiation source and said radiation sensor is configured to move independently, and wherein at least one of said radiation source and said radiation sensor is moved to multiple different positions during the scanning session such that energy emitted from the radiation source passes through said PRG and said patient's body and collected by a surface of said radiation sensor.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: June 30, 2020
    Assignee: CMT MEDICAL TECHNOLOGIES LTD.
    Inventors: Dmitry Samsonov, Ami Ben Hayun
  • Patent number: 10700785
    Abstract: An optical transceiver includes an optical transmitter and an optical receiver. The optical transmitter includes a laser diode configured to convert a current signal into an optical signal; a main driver comprising first and second output terminals that have a differential structure, the main driver configured to drive the first and second output terminals in response to differential input signals and to provide the current signal to the laser diode through the first output terminal; and an impedance balancer configured to match impedances of the first and second output terminals by adjusting the impedance of the second output terminal according to signal states of the first and second output terminals.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: June 30, 2020
    Assignees: SK hynix Inc., Korea University Research and Business Foundation
    Inventors: Chul Woo Kim, Sang Geun Bae, Hyun Su Park, Choong Hwan Lee
  • Patent number: 10672948
    Abstract: Aspects of the disclosure provide for mechanisms for fabricating light extraction structures for semiconductor devices (e.g., light-emitting devices). In accordance with some embodiments, a semiconductor device is provided. The semiconductor device may include: a first semiconductor layer including an epitaxial layer of a semiconductor material; a second semiconductor layer comprising an active layer; and a light-reflection layer configured to cause at least a portion of light produced by the active layer to emerge from the semiconductor device via a surface of the second semiconductor layer, wherein the light-reflection layer is positioned between the first semiconductor layer and the second semiconductor layer. In some embodiments, the semiconductor material includes gallium nitride. In some embodiments, the light-reflection layer includes a layer of gallium.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: June 2, 2020
    Assignee: Saphlux, Inc.
    Inventors: Joo Won Choi, Chen Chen
  • Patent number: 10591643
    Abstract: Embodiments of 3D imaging systems that use a multifunctional, nano structured metalens to replace the conventional microlens array in light field imaging are disclosed. The optical focusing properties of the metalenses provided by gradient metasurface optical elements. The gradient metasurfaces allow the properties of the elements of the metalens array to be changed by tuning the gradient metasurfaces.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: March 17, 2020
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Dianmin Lin, Mark L. Brongersma, Pieter G. Kik, Gordon Wetzstein
  • Patent number: 10492311
    Abstract: The present disclosure provides a flexible display device, wherein there is a flexible support structure fixed on a surface of the flexible display module, which is used to disperse stress. During use of the flexible display device, the flexible support structure can be used to disperse the point force or linear force that the flexible display device is subject to when being bent into even planar force. Besides, the flexible support structure can reduce the stress exerted on the flexible display module, avoiding delamination among the film layers caused by local stress concentration on the flexible display module. In addition, given the same thickness of the flexible display module, the flexible display device can be bent to a smaller bending radius.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: November 26, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lu Liu, Weifeng Zhou
  • Patent number: 10444552
    Abstract: Embodiments of the present invention disclose a photochromic lens module, a camera, and a terminal device. The photochromic lens module includes a lens module and a photochromic thin film. The lens module includes a first surface and a second surface. When the first surface is an incident surface, the second surface is a refractive surface; when the second surface is an incident surface, the first surface is a refractive surface. The photochromic thin film includes a first area and a second area. The photochromic thin film covers the first surface or the second surface. The first area uses a negative photochromic material, and the second area uses a positive photochromic material. By means of the embodiments of the present invention, a lens module can be effectively protected.
    Type: Grant
    Filed: May 25, 2015
    Date of Patent: October 15, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Haishui Ye, Feng Yu, Xiaojiong Wen, Jiahui Zhao
  • Patent number: 10429555
    Abstract: An automobile headlamp comprising a light source; a photochromic lens; and a one-way mirror positioned between the light source and the photochromic lens such that when viewing the light source through the photochromic lens, the one-way mirror conceals at least a portion of the light source.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: October 1, 2019
    Inventor: Ben George Acheff
  • Patent number: 10423061
    Abstract: A multilayer photochromic article can include a photochromic substrate, which may include a first photochromic layer defining a surface of the substrate, and a second photochromic layer positioned between the surface of the photochromic substrate and a source of actinic radiation, and in which the photochromic substrate and the second photochromic layer are selected such that the fade half-life of the photochromic substrate or the half-life of the first photochromic layer defining the surface of the substrate are greater than the fade half-life of the second photochromic layer.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: September 24, 2019
    Assignee: Transitions Optical, Inc.
    Inventors: Massimiliano Tomasulo, Cory Brown, Elizabeth Ann Zezinka
  • Patent number: 10416521
    Abstract: Variable transmittance optical filters capable of transitioning from a light state to a dark state on exposure to UV radiation and from a dark state to a light state with application of an electric voltage are provided. The optical filters comprise a switching material that comprises one or more chromophores that have electrochromic and photochromic properties.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: September 17, 2019
    Assignee: SWITCH MATERIALS, INC.
    Inventors: Duhane Lam, Neil R. Branda
  • Patent number: 10411435
    Abstract: A system includes a master oscillator configured to generate a low-power optical beam. The system also includes a planar waveguide (PWG) amplifier configured to generate a high-power optical beam using the low-power optical beam. The PWG amplifier has a larger dimension in a slow-axis direction and a smaller dimension in a fast-axis direction. The system further includes at least one adaptive optic (AO) element configured to modify the low-power optical beam along the slow-axis direction and to modify the low-power optical beam along the fast-axis direction. In addition, the system includes a feedback loop configured to control the at least one AO element. The modification in the slow-axis direction can compensate for thermal-based distortions created by the PWG amplifier, and the modification in the fast-axis direction can compensate for optical misalignment associated with the master oscillator and the PWG amplifier.
    Type: Grant
    Filed: June 6, 2016
    Date of Patent: September 10, 2019
    Assignee: Raytheon Company
    Inventors: David M. Filgas, Andrew D. W. McKie
  • Patent number: 10393934
    Abstract: A multi-pane window having a low emissivity layer and a photochromic glass. The window includes at least two panes of glass. An outside pane for interaction with the outdoors and an inside pane spaced apart from the outside pane. The outside pane includes a low emissivity coating. The inside pane includes a photochromic glass. The outside pane transmits solar light wavelengths. The photochromic glass is darkened upon exposure to light transmitted by the outside pane.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: August 27, 2019
    Assignee: Corning Incorporated
    Inventors: Nicholas Francis Borrelli, Nadja Teresia Lönnroth, Michel Prassas, Paul Michael Then, Luis Alberto Zenteno
  • Patent number: 10359547
    Abstract: The present invention relates to an optical device (100) and a use of the optical device (100). The optical device (100) comprises: —a source electrode (2); —a drain electrode (4); —a gap area (6) between the source electrode (2) and the drain electrode (4); —a cluster (8) being positioned in the gap area (6) for connecting and disconnecting the source electrode (2) and the drain electrode (4) and for changing optical and/or plasmonic properties of the gap area (6); and an optical coupling element (10) for bringing light into and out of the gap area (6).
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: July 23, 2019
    Assignee: BADEN-WURTTEMBERG STIFTUNG GGMBH
    Inventor: Thomas Schimmel
  • Patent number: 10310151
    Abstract: Optical device with an optical substrate and a multi-functional layer fixed thereon, the layer including plural multi-functional areas, each said area including a first group and a second group of functional dots and disposed within a certain rectangular area, the first group having a first composition and a first functionality, the first functionality selected from an anti-reflectance, anti-scratch, anti-fog, ultraviolet absorber, and photochromic functionality; the second group having a second composition and a second functionality, the second functionality selected from the same group as above, the second group differs with respect to the first functionality, or with respect to the first composition, or wherein within at least one multi-functional area, the first group has a height H1, the second group has a height H2, where H2>k*H1, with k being at least 1.05.
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: June 4, 2019
    Assignee: UJETT D.P. LTD
    Inventors: Fernando De La Vega, Yinon Masad, Claudio Rottman
  • Patent number: 10191319
    Abstract: The present application discloses a display panel having a subpixel region and an inter-subpixel region. The display panel includes a base substrate; and a photochromic layer on the base substrate at least partially in the subpixel region for preventing light leakage in the subpixel region.
    Type: Grant
    Filed: November 24, 2016
    Date of Patent: January 29, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Liangliang Jiang, Songyang Jiang, Lei Guo, Ke Dai
  • Patent number: 10143532
    Abstract: A system for performing a scanning session of a patient's body, the system comprising: a radiation source; a radiation sensor; a patient positioner for placing the patient between the radiation source and the radiation sensor in a fixed position during each scan; at least one Pseudo-Random Grid (PRG) comprising randomly spaced perpendicular gridlines, the PRG being at least partially radiopaque and positioned between the radiation source and the radiation sensor in a fixed manner with respect to the patient positioner during the scanning session, wherein at least one of said radiation source and said radiation sensor is configured to move independently, and wherein at least one of said radiation source and said radiation sensor is moved to multiple different positions during the scanning session such that energy emitted from the radiation source passes through said PRG and said patient's body and collected by a surface of said radiation sensor.
    Type: Grant
    Filed: February 7, 2016
    Date of Patent: December 4, 2018
    Assignee: CMT MEDICAL TECHNOLOGIES LTD.
    Inventors: Dmitry Samsonov, Ami Ben Hayun
  • Patent number: 10094956
    Abstract: In an optical field enhancement device in which localized plasmon is induced on a surface through illumination of excitation light and intensity of signal light emitted, by the illumination, from a sample placed on the surface is enhanced, forming sharp-edged petal-like fine uneven structures disposed at random on a substrate, and forming plate-like metal fine structures on tip portions of the sharp-edged petal-like fine uneven structures by depositing a metal from an oblique direction with respect to a direction perpendicular to a plane of the substrate on which the sharp-edged petal-like fine uneven structures are formed.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: October 9, 2018
    Assignee: FUJIFILM Corporation
    Inventor: Shogo Yamazoe
  • Patent number: 9975408
    Abstract: The present disclosure describes various vehicle window assemblies including a photochromic window and a mounting assembly surrounding at least part of the window. The mounting assembly may be sized and configured for mounting to the cabin of a vehicle. The photochromic window may include a region configured to at least partially inhibit transmission of light in a visible, IR or UV frequency range upon exposure to a level of light.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: May 22, 2018
    Assignee: THUNDER POWER NEW ENERGY VEHICLE DEVELOPMENT COMPANY LIMITED
    Inventor: Yu-An Lo
  • Patent number: 9974626
    Abstract: A system for performing a scanning session of a patient's body, the system comprising: a radiation source; a radiation sensor; a patient positioner for placing the patient between the radiation source and the radiation sensor in a fixed position during each scan; at least one Pseudo-Random Grid (PRG) comprising randomly spaced perpendicular gridlines, the PRG being at least partially radiopaque and positioned between the radiation source and the radiation sensor in a fixed manner with respect to the patient positioner during the scanning session, wherein at least one of said radiation source and said radiation sensor is configured to move independently, and wherein at least one of said radiation source and said radiation sensor is moved to multiple different positions during the scanning session such that energy emitted from the radiation source passes through said PRG and said patient's body and collected by a surface of said radiation sensor.
    Type: Grant
    Filed: February 7, 2016
    Date of Patent: May 22, 2018
    Assignee: CMT MEDICAL TECHNOLOGIES LTD.
    Inventors: Dmitry Samsonov, Ami Ben Hayun
  • Patent number: 9939664
    Abstract: A system may include a composite structure and a light source. The composite structure may include a matrix having a matrix refractive index, a plurality of fibers embedded in the matrix, and a light-reactive material in the matrix. The light source may be capable of emitting light of an activation wavelength that induces a reaction in the light-reactive material causing a change in the matrix refractive index.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: April 10, 2018
    Assignee: The Boeing Company
    Inventor: Mark S. Wilenski
  • Patent number: 9891347
    Abstract: An electromagnetic energy-absorbing optical product useful as a composite for coloring an opaque article such as a paint composite or car wrap is disclosed. The electromagnetic energy-absorbing optical product includes a polymeric substrate and a composite coating with the composite coating including first and second layers each containing a binding group component which together form a complimentary binding group pair.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: February 13, 2018
    Assignee: Eastman Chemical Company
    Inventors: Brija Nand, Lee Campbell Boman, Kevin C. Krogman, Michael Hawkins, Anthony Brian Port, Timofey Gerasimov, Ralph Peter Schultz
  • Patent number: 9891357
    Abstract: An electromagnetic energy-absorbing optical product useful particularly for automotive and architectural window films is disclosed. The electromagnetic energy-absorbing optical product includes a polymeric substrate and a composite coating with the composite coating including first and second layers each containing a binding group component which together form a complimentary binding group pair.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: February 13, 2018
    Assignee: Eastman Chemical Company
    Inventors: Lee Campbell Boman, Michael Hawkins, Kevin C. Krogman, Genichi Minase, Brija Nand, Kayur Ashwin Patel, Anthony Brian Port
  • Patent number: 9864252
    Abstract: Variable transmittance optical filters capable of transitioning from a light state to a dark state on exposure to UV radiation and from a dark state to a light state with application of an electric voltage are provided. The optical filters comprise a switching material that comprises one or more chromophores that have electrochromic and photochromic properties.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: January 9, 2018
    Assignee: Switch Materials, Inc.
    Inventors: Duhane Lam, Neil R. Branda
  • Patent number: 9817166
    Abstract: An electromagnetic energy-absorbing optical product useful particularly for automotive and architectural window films is disclosed. The electromagnetic energy-absorbing optical product includes a polymeric substrate and a composite coating with the composite coating including first and second layers each containing a binding group component which together form a complimentary binding group pair.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: November 14, 2017
    Assignee: EASTMAN CHEMICAL COMPANY
    Inventors: Lee Campbell Boman, Michael Hawkins, Jeremy L. Isbell, Kevin C. Krogman, Brija Nand, Kayur Ashwin Patel, Anthony Brian Port
  • Patent number: 9733478
    Abstract: A virtual reality glasses assembly is provided. The assembly includes virtual reality glasses having lenses. The assembly further includes light attenuating filters at least one of applied to and incorporated into the lenses that automatically maintain or increase a contrast of a projected virtual reality image and prevent ultraviolet light overexposure by adjusting an amount of light passing through the lenses. Each of the light attenuating filters has one or more respective photochromic filters and one or more respective ultraviolet filters. The assembly also includes light attenuating shutters at least one of applied to and incorporated into the lenses that automatically or manually further maintain or increase the contrast of the projected virtual reality image by further adjusting the amount of light passing through the lenses.
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: August 15, 2017
    Assignee: Thomson Licensing
    Inventor: Thomas Walsh
  • Patent number: 9690021
    Abstract: A photochromic optical article is provided, which includes: an optical substrate; a photochromic layer over a surface of the optical substrate, wherein the photochromic layer includes a photochromic compound; and a protective layer over the photochromic layer, wherein the protective layer includes a matrix that includes residues of an ethylenically unsaturated radically polymerizable material that includes at least one allophanate group. A method of forming the photochromic optical article is also provided.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: June 27, 2017
    Assignee: Transitions Optical, Inc.
    Inventors: Joseph David Turpen, Cynthia Kutchko, Glen Todd Owens, Vitawat Lahsangah, Jerry L. Koenig, II
  • Patent number: 9684221
    Abstract: Provided are systems and methods to generate single-cycle THz pulses from a few tens of nanometers thin layer of split ring resonators (SRRs) via optical rectification of femtosecond laser pulses. The emitted THz radiation, with a spectrum ranging from about 0.1 to 4 THz, arises exclusively from pumping the magnetic-dipole resonance of SRRs around 200 THz. This resonant enhancement, together with pump polarization dependence and power scaling of the THz emission, underpins the nonlinearity from optically induced circulating currents in SRRs, with a huge effective nonlinear susceptibility of 0.8×10?16 m2/V that far exceeds surface nonlinearities of both thin films and bulk organic/inorganic crystals and sheet nonlinearities of non-centrosymmetric materials such as ZnTe.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: June 20, 2017
    Assignees: Iowa State University Research Foundation, Inc.
    Inventors: Liang Luo, Jigang Wang, Thomas Koschny, Martin Wegener, Costas M. Soukoulis
  • Patent number: 9675417
    Abstract: The present invention relates to a device comprising a supply unit (2) for supplying ablation energy to a material (4), and a stimuli-responsive substance (3?) for controlling a level of the ablation energy deposited into the material (4). The device allows to limit a temperature of the material (4), so that risks associated to ablation at too high temperatures can be eliminated. The device may comprise at least one illumination unit (7) for illuminating the material (4), and at least one reception unit (8a, 8b) for receiving reflected light in order to obtain information about a state of the material (4). The obtained information can be used to regulate the supplied ablation energy.
    Type: Grant
    Filed: July 10, 2009
    Date of Patent: June 13, 2017
    Assignee: Koninklijke Philips N.V.
    Inventors: Szabolcs Deladi, Nenad Mihajlovic, Ralph Kurt
  • Patent number: 9656645
    Abstract: A hydraulic fluid container for a hydraulic brake system, includes a hydraulic interface for connecting the hydraulic fluid container to another component. The hydraulic fluid container has a container housing, and the interface includes at least one connector arranged on the container housing, the connector received in a receiving seat of the other component. The connector has a channel which ensures a hydraulic connection between an interior of the container housing and the other component. A blocking device for blocking the hydraulic connection is provided, wherein the blocking device is opened when the connector is received in the receiving seat, the blocking device having a movable valve piston and a sealing element. The aim of the invention is to improve the blocking device and reduce the space requirement and assembly complexity. This is achieved in that the sealing element is designed to secure the position of the valve piston.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: May 23, 2017
    Assignee: Continental Teves AG & Co. oHG
    Inventors: Werner Krebs, Stephan Schlicht, David Sibr
  • Patent number: 9627434
    Abstract: A device for color imaging including an optical sensor having light sensitive pixels with a metal film disposed over the light sensitive pixels. The metal film has a group of nano-holes arranged over the pixels according to a periodic lattice formation and is configured to pass light of a preselected first range of wavelengths. The group of nano-holes arranged over an adjoining group of pixels is configured to pass light having ranges of wavelengths different from the first range of wavelengths.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: April 18, 2017
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Harry A. Atwater, Stanley Burgos, Sozo Yokogawa
  • Patent number: 9594285
    Abstract: A control system for a variable transmittance optical filter assembly includes a controller in communicatively coupled to a pair of load terminals, and a memory communicatively coupled to the controller and having encoded thereon statements and instructions executable by the controller to transition the optical filter assembly between operating states when coupled to the pair of load terminals. The controller is operable to perform any one or more of: allowing the optical filter assembly to transition to a dark state by shorting the load terminals together, maintaining the optical filter assembly in a hold mode by applying a pulse width modulated voltage signal across the load terminals, and transitioning the optical filter assembly between operative states by applying a voltage signal having voltage pulses of opposite polarities to the load terminals.
    Type: Grant
    Filed: April 18, 2013
    Date of Patent: March 14, 2017
    Assignee: SWITCH MATERIALS, INC.
    Inventors: Neil Robin Branda, Glen Ramsay Bremner, Jeremy Graham Finden, Corbin Abe Giesbrecht, Duhane Lam, Matt Andrew Pilapil, Matthew Paul Smit
  • Patent number: 9504100
    Abstract: A selective radiation utilization apparatus includes an optical filtering device and a modulation device. The optical filtering device transmits one or more selected spectral bands of incoming solar radiation and reflects one or more remaining bands of the incoming solar radiation. The modulation device spatially modulates one of the one or more selected spectral bands or the one or more remaining bands and directs the spatially modulated one of the one or more selected spectral bands or the one or more remaining bands towards a target of illumination.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: November 22, 2016
    Assignee: Munro Design & Technologies, LLC
    Inventor: James F. Munro
  • Patent number: 9453949
    Abstract: An electromagnetic energy-absorbing optical product useful particularly for automotive and architectural window films is disclosed. The electromagnetic energy-absorbing optical product includes a polymeric substrate and a composite coating with the composite coating including first and second layers each containing a binding group component which together form a complimentary binding group pair.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: September 27, 2016
    Assignee: Eastman Chemical Company
    Inventors: Brija Nand, Lee Campbell Boman, Kevin C. Krogman, Michael Hawkins, Anthony Brian Port
  • Patent number: 9453950
    Abstract: The present invention provides a method for manufacturing a photochromic article having a photochromic compound containing layer. The method includes the step of coating a casting face of at least one mold section with a photochromic host layer. The photochromic host layer is treated to minimize damage during subsequent steps, and a mold is then assembled so that it includes the mold section having the photochromic host layer. The mold is then filled with a photochromic article monomer composition and the monomer composition is subsequently cured to form a photochromic article substrate adhered to the photochromic host layer. The photochromic compound is introduced into the photochromic host layer.
    Type: Grant
    Filed: August 17, 2011
    Date of Patent: September 27, 2016
    Assignee: CARL ZEISS VISION AUSTRALIA HOLDINGS LTD.
    Inventors: Kathy Wai Yuen Wong, David Andrew Lewis, Fang Chen, Bohdan Grzegorz Cieslinski, Huan Kiak Toh
  • Patent number: 9436020
    Abstract: Luminance adjustment films that include a photothermal conversion material which converts infrared light to heat wherein an intensity distribution of the infrared light reflects a luminance distribution of visible light; and at least one microcapsule containing a compound which selectively decreases luminance of the visible light in reaction to the heat are described.
    Type: Grant
    Filed: December 5, 2012
    Date of Patent: September 6, 2016
    Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventor: Masahiro Ueda
  • Patent number: 9417449
    Abstract: A head-up display system is disclosed and has a transparent reflecting medium and a flat display panel. The flat display panel is disposed in front of the transparent reflecting medium at an angle with respect to the transparent reflecting medium, and generates a display image. The flat display panel has a display area of X square millimeters and has a light source that emits light with a luminous flux of Y lumens, satisfying a relationship of Y>(3e?10X2+0.0283X+2.5298), so that the display image is projected onto the transparent reflecting medium in a lensless way. With the head-up display system, the visibility of the display image projected on a front windshield is improved.
    Type: Grant
    Filed: April 6, 2014
    Date of Patent: August 16, 2016
    Inventor: Che-Chang Hu
  • Patent number: 9348156
    Abstract: A method according to an aspect of the present invention, is a method for manufacturing an optical waveguide element, including: an optical waveguide forming step of forming an optical waveguide extending in a first direction in a substrate by doping the substrate with an impurity for reducing a coercive electric field of the substrate, a ridge forming step of forming a first ridge part including the optical waveguide and a second ridge part intersecting the first ridge part, and a poling step of reversing a polarization direction of a region of the substrate divided by the second ridge part by applying voltage to the region.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: May 24, 2016
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Junichiro Ichikawa, Katsutoshi Kondou
  • Patent number: 9285275
    Abstract: Provided are a method and an apparatus for measuring the spectral intensity and phase of a light pulse having an arbitrary time duration. The apparatus includes: a nonlinear mixing means for generating a signal light pulse expressed by the following Formula (? denotes an operator representing general nonlinear mixing, and ? denotes a coefficient which is proportional to a nonlinear susceptibility in the nonlinear mixing) by nonlinearly mixing a reference light pulse having an electric field Er(t??) delayed by an optical delay means and a measurement target light pulse having an electric field E0(t); and Er(t??)+?Er(t??)?E0(t) an imaging spectrum device for spectrally splitting the signal light pulse and outputting a Fourier transform signal expressed by the following Formula (F denotes a symbol indicating Fourier transform, * denotes a complex conjugate, and R denotes a symbol indicating a real part), |F[Er(t??)]|2+|?F[Er(t??)?E0(t)]|2+2R{?F[Er(t??)]*·F[Er(t??)?E0(t)]}.
    Type: Grant
    Filed: April 23, 2013
    Date of Patent: March 15, 2016
    Assignee: INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION NATIONAL INSTITUTES OF NATURAL SCIENCES
    Inventors: Takao Fuji, Yutaka Nomura
  • Patent number: 9280005
    Abstract: An eyepiece includes a viewing region to emit display light out of the eyepiece along an eye-ward direction, an input end peripherally located from the viewing region and configured to receive the display light into the eyepiece, one or more optical elements positioned to direct the display light received into the eyepiece out of the viewing region along the eye-ward direction, a first side through which ambient scene light is received into the eyepiece, a second side out of which the ambient scene light and the display light are passed along the eye-ward direction, and a photo-chromic coating disposed on the first side and the second side, the photo-chromic coating to darken in the presence of UV light.
    Type: Grant
    Filed: April 2, 2014
    Date of Patent: March 8, 2016
    Assignee: Google Inc.
    Inventors: Mark B. Spitzer, Anurag Gupta
  • Patent number: 9257206
    Abstract: Methods and apparatus for providing coherent atom population transfer using coherent laser beam pairs in which the frequency difference between the beams of a pair is swept over time. Certain examples include a Raman pulse adiabatic rapid passage sweep regimen configured to be used as a beamsplitter and combiner in conjunction with an adiabatic rapid passage mirror sweep or a standard Raman mirror pulse in a 3-pulse interferometer sequence.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: February 9, 2016
    Assignee: THE CHARLES STARK DRAPER LABORATORY, INC.
    Inventors: Richard E. Stoner, Joseph M. Kinast, Brian P. Timmons
  • Patent number: 9244207
    Abstract: An optical frequency filter comprises a support layer having reflective elements formed thereon, the reflective elements defining at least one periodic grid of substantially parallel slits, the period P, the height, and the width of the slits being selected in such a manner that the reflective elements form a wavelength-selective structure for a wavelength lying in a determined range of wavelengths. The support layer material has a refractive index nh and includes inclusions of a material of refractive index nb, where nb is strictly less than nh. The inclusions are flush with the surface of the support layer opposite from its surface on which the reflective elements are formed, and present height hbwherein 0.5hh?hb?1hh, hh being the support layer height, and width lbwhere 0.05P?lb?0.75P. Each inclusion is situated at least in part between two reflective elements.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: January 26, 2016
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventor: Roch Espiau De Lamaestre
  • Patent number: 9151884
    Abstract: An illumination system, such as might be used for illuminating a projection system, includes at least a first source of incoherent light capable of generating light in a first wavelength range. The system includes at least one active chromophore layer, sandwiched by transparent materials into a multi-layer body. They active chromophore layer emits light in a second wavelength range, different from the first wavelength range, when illuminated by light in the first wavelength range. The multi-layer body has an extraction area and at least some of the light at the second wavelength is internally reflected within the body to the extraction area.
    Type: Grant
    Filed: January 27, 2009
    Date of Patent: October 6, 2015
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Todd S. Rutherford, Roy A. Auerbach
  • Patent number: 9097666
    Abstract: A non-invasive method for determining a concentration of a gas component in a gas mixture contained in a spacing of a glass unit having at least two glass sheets spaced apart from each other and forming the spacing. One or more light beams is applied at an angle to the surface of the glass unit, wherein the wavelength of the emitted light beam is varied around or over the at least one absorption line of the interest gas component. The light beams transmitted through or reflected from at least one surface or interface locating at the opposite side of the spacing are collected by a detector and non-linear variations in the intensity of the transmitted or reflected light beams over an absorption line of the interest gas is then component determined. The concentration of the gas component to be measured is determined based on the non-linear variations in the intensity.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: August 4, 2015
    Assignee: OY SPARKLIKE AB
    Inventors: Kai Niiranen, Erno Launo
  • Patent number: 9080104
    Abstract: The invention relates to compounds of the general formula (I): Lu3?x?zAxAl5?y?zScyO12:MnzCaz,, where A stands for Y, Gd or Tb, x stands for a value from the range from 0 to 2.90, y stands for a value from the range from 0 to 0.50, z stands for a value from the range from 0.005 to 0.05, and to a process for the preparation of these phosphors and to the use thereof as conversion phosphors or in lamps.
    Type: Grant
    Filed: September 16, 2011
    Date of Patent: July 14, 2015
    Assignee: Merck Patent GmbH
    Inventors: Holger Winkler, Thomas Juestel, Andre Bleise
  • Patent number: 9030740
    Abstract: Photochromic-dichroic articles are provided, which include a substrate having a first surface, a fixed-polarized layer over the first surface of the substrate, and a photochromic-dichroic layer over the first surface of the substrate. The fixed-polarized layer optionally includes a fixed-colorant and has a first polarization axis. The photochromic-dichroic layer includes a photochromic-dichroic compound that is laterally aligned within the photochromic-dichroic layer, and which defines a second polarization axis. The first polarization axis and the second polarization axis are oriented relative to each other at an angle of greater than 0° and less than or equal to 90°. The photochromic-dichroic articles can provide, for example, increased optical density and/or increased kinetics when exposed to a given amount of actinic radiation.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: May 12, 2015
    Assignee: Transitions Optical, Inc.
    Inventors: Rachel L. DeMeio, Anil Kumar, John S. Ligas, Truman Wilt, Delwin S. Jackson, Henry Nguyen