Optical Device Patents (Class 430/321)
  • Patent number: 11835740
    Abstract: A method using capillary force lamination (CFL) for manufacturing a high-performance optical absorber, includes: texturizing a base layer of the high-performance optical absorber, the base layer comprising one or more of a polymer film and a polymer coating; joining a surface layer of the high-performance optical absorber to the base layer, the surface layer comprising a non-woven carbon nanotube (CNT) sheet; wetting the joined surface layer and base layer with a solvent; drying the joined surface layer and base layer; and treating the resulting base layer with plasma, creating the high-performance optical absorber.
    Type: Grant
    Filed: March 23, 2023
    Date of Patent: December 5, 2023
    Assignee: Northrop Grumman Systems Corporation
    Inventors: John A Starkovich, Edward M. Silverman
  • Patent number: 11745420
    Abstract: A method of forming a three-dimensional structure includes forming a layer of resin comprising liquid crystal oligomers and a photoinitiator, applying a magnetic field to the formed layer in a predefined alignment direction for substantially aligning the liquid crystal oligomers in a first orientation; and exposing the formed layer to radiation for curing a first portion of the layer during application of the magnetic field thereby resulting in the first portion having liquid crystal elastomers substantially aligned in the first orientation. The method includes applying a second magnetic field to the formed layer in a predefined second alignment direction for substantially aligning uncured liquid crystal oligomers in a second orientation, and exposing the layer to radiation for curing a second portion of the layer during application of the second magnetic field thereby resulting in the second portion having liquid crystal elastomers substantially aligned in the second orientation.
    Type: Grant
    Filed: June 23, 2022
    Date of Patent: September 5, 2023
    Assignees: Lawrence Livermore National Security, LLC, President and Fellows of Harvard College
    Inventors: Rodrigo Telles Arriaga, Caitlyn Christian Krikorian, Elaine Lee, Jennifer Lewis
  • Patent number: 11714219
    Abstract: The present disclosure relates to an infrared band pass filter, which comprises a first multilayer film. The first multilayer film including a plurality of Si:NH layers and a low refraction index layer. The plurality of low refraction index layers are stacked with Si:NH layers alternatively; wherein the difference between the refraction index of Si:NH layer and the refraction index of the low refraction index layer is greater than 0.5. The infrared band pass filter has a pass band in a wavelength range of 800 nm and 1100 nm, and when the incident angle is changed from 0 degrees to 30 degrees, the center wavelength of the pass band is shifted less than 12 nm, and the infrared band pass filter of the present disclosure can be used to enhance the 3D image resolution when applied to a 3D imaging system.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: August 1, 2023
    Assignee: Platinum Optics Technology Inc.
    Inventors: Cheng-Tang Mu, Yu-Ching Su
  • Patent number: 11703750
    Abstract: An illuminator includes a light source that outputs first light, a wavelength converter that converts the first light into second light, an optical element that reflects the first light toward the wavelength converter and transmits the second light, and an illumination system which is disposed on the opposite side of the optical element from the wavelength converter. The wavelength converter includes a substrate, a reflection layer facing a first surface of the substrate, a wavelength conversion layer having a second surface and facing the reflection layer, and a structural element facing the second surface and having a plurality of protrusions that reflect part of the first light. The plurality of protrusions each have an inclining surface that inclines with respect to the second surface, and at least part of the first light and reflected off the inclining surface enters the illumination system without traveling via the optical element.
    Type: Grant
    Filed: March 18, 2022
    Date of Patent: July 18, 2023
    Assignee: Seiko Epson Corporation
    Inventors: Mizuha Hiroki, Koya Shiratori, Shinichi Yotsuya, Tetsuo Shimizu, Ryuta Koizumi, Shoichi Uchiyama, Tomoko Akagawa
  • Patent number: 11658204
    Abstract: A display comprises a substrate. Sets of light emitting diodes (LEDs) are arranged on the substrate. Each of the sets of LEDs comprises a red LED, a green LED, a blue LED, and each of the sets of LEDs forming a pixel of the display. A sensor is embedded in each of the sets of LEDs. The sensor is arranged in a plane in which the red, green, and blue LEDs are arranged in each of the sets of LEDs. A cover including a dielectric material covers the sets of LEDs. The sensor is configured to sense at least one of ambient light and proximity of an object to the cover.
    Type: Grant
    Filed: November 12, 2020
    Date of Patent: May 23, 2023
    Inventors: Kai-Han Chang, Thomas A. Seder, James A. Carpenter
  • Patent number: 11585749
    Abstract: This relates to systems and methods for measuring a concentration and type of substance in a sample at a sampling interface. The systems can include a light source, optics, one or more modulators, a reference, a detector, and a controller. The systems and methods disclosed can be capable of accounting for drift originating from the light source, one or more optics, and the detector by sharing one or more components between different measurement light paths. Additionally, the systems can be capable of differentiating between different types of drift and eliminating erroneous measurements due to stray light with the placement of one or more modulators between the light source and the sample or reference. Furthermore, the systems can be capable of detecting the substance along various locations and depths within the sample by mapping a detector pixel and a microoptics to the location and depth in the sample.
    Type: Grant
    Filed: October 5, 2020
    Date of Patent: February 21, 2023
    Assignee: Apple Inc.
    Inventors: Miikka M. Kangas, Mark Alan Arbore, David I. Simon, Michael J. Bishop, James W. Hillendahl, Robert Chen
  • Patent number: 11577480
    Abstract: A method and apparatus for mass production of AR diffractive waveguides. Low-cost mass production of large-area AR diffractive waveguides (slanted surface-relief gratings) of any shape. Uses two-photon polymerization micro-nano 3D printing to realize manufacturing of slanted grating large-area masters of any shape (thereby solving the problem about manufacturing of slanted grating masters of any shape on the one hand, realizing direct manufacturing of large-size wafer-level masters on the other hand, and also having the advantages of low manufacturing cost and high production efficiency). Composite nanoimprint lithography technology is employed (in combination with the peculiar imprint technique and the composite soft mold suitable for slanted gratings) to solve the problem that a large-slanting-angle large-slot-depth slanted grating cannot be demolded and thus cannot be manufactured, and realize the manufacturing of the slanted grating without constraints (geometric shape and size).
    Type: Grant
    Filed: July 16, 2020
    Date of Patent: February 14, 2023
    Inventors: Hongbo Lan, Quan Xu, Jiawe Zhao, Xiaoyang Zhu
  • Patent number: 11536981
    Abstract: A diffractive optical element includes: a substrate; a protrusion and recess portion that is formed on one surface of the substrate and imposes predetermined diffraction on incident light; and an antireflection layer provided between the substrate and the protrusion and recess portion. An effective refractive index difference ?n in a wavelength range of the incident light between a first medium constituting a protrusion of the protrusion and recess portion and a second medium constituting a recess of the protrusion and recess portion is 0.70 or more. An exit angle range ?out of diffraction light exiting from the protrusion and recess portion when the incident light enters the substrate from a normal direction of the substrate is 60° or more. Total efficiency of diffraction light exiting from the protrusion and recess portion in the exit angle range is 65% or more.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: December 27, 2022
    Assignee: AGC INC.
    Inventors: Ryota Murakami, Motoshi Nakayama
  • Patent number: 11347002
    Abstract: An optical waveguide includes a first core and a second core disposed adjacent to each other at spaced intervals and a dummy core positioned between the first core and the second core. The first core and the second core transmit light in a transmission direction perpendicular to an adjacent direction. The dummy core includes a facing surface facing the first core and an opposing surface positioned at the opposite side to the first core with respect to the facing surface, and the opposing surface has an inclined surface inclining so as to go away from the first core toward the downstream side in the transmission direction.
    Type: Grant
    Filed: August 10, 2018
    Date of Patent: May 31, 2022
    Inventors: Naoto Konegawa, Yuichi Tsujita
  • Patent number: 11340450
    Abstract: The invention relates to a device (20) for generating images, comprising: —a diffuser (25), and—a scanning unit (22) designed to generate a light beam scanning a face of said diffuser. According to the invention, the image generating device also comprises an autostereoscopic filter (26).
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: May 24, 2022
    Inventors: Stéphane Gache, Bruno Albesa, Gérard Guenin, Alexandre Camenen, Jean-David Lafferayrie, Pierre Mermillod
  • Patent number: 11333909
    Abstract: An optical waveguide element is provided to effectively reduce an optical absorption loss of waveguide light which may occur at an intersecting part between an optical waveguide and an electrode without causing deterioration in optical characteristics and degradation of long-term reliability of the optical waveguide element. The optical waveguide element includes an optical waveguide formed in a substrate, and an electrode controlling optical waves propagated in the optical waveguide and having an intersecting part intersecting the optical waveguide thereabove. A portion of a resin layer is provided between the optical waveguide and the electrode in a portion of the substrate including the intersecting part. A corner of the resin layer on a side of the electrode is constituted to be a curve in a cross section in an extending direction of the electrode.
    Type: Grant
    Filed: November 26, 2020
    Date of Patent: May 17, 2022
    Inventors: Kousuke Okahashi, Toru Sugamata
  • Patent number: 11315984
    Abstract: The present disclosure relates to a color filter substrate, a manufacturing method thereof, and an OLED display device. The color filter substrate comprises a substrate, a black matrix, a plurality of color resists, and a plurality of isolation walls. The present disclosure disposes the plurality of isolation walls on the black matrix and between two adjacent color resists, thereby preventing light crosstalk between the adjacent color resists and preventing color mixing, and therefore improving display effect.
    Type: Grant
    Filed: November 11, 2019
    Date of Patent: April 26, 2022
    Inventor: Yuanyuan Li
  • Patent number: 11294225
    Abstract: Provided are liquid crystal glasses and display panel having light leakage elimination element.
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: April 5, 2022
    Inventor: Haiyan Wang
  • Patent number: 11269199
    Abstract: We describe methods of producing gratings such as Bragg gratings with optical waveguides. Described are the writing and erasing of gratings within SiON waveguides by forming standing waves. Methods, systems, instruments, and devices are described that provide improved transmission of light through such waveguides.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: March 8, 2022
    Assignee: Pacific Biosciences of California, Inc.
    Inventors: Mark McDonald, Aaron Rulison, Paul Lundquist, Tsuei-Lian Wang, Deborah Pao-Tung Kwo, Shang Wang
  • Patent number: 11231527
    Abstract: A diffuser plate includes a plurality of fine structures having two or more types of lens functions arranged on a main surface. Intensity of diffused light within a desired diffusion angle range is substantially uniform, and the diffuser plate satisfies a relation of P×P×Sk?400 [?m2], where P is an average pitch of the plurality of fine structures, Sk is a standard deviation of relative luminance of the plurality of fine structures in their front directions, P?200 [?m], and Sk?0.005. Thus, it is possible to provide a diffuser plate having a simple structure capable of achieving optical properties with little luminance and color unevenness and excellent appearance quality when an image is projected.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: January 25, 2022
    Assignee: KURARAY CO., LTD.
    Inventors: Atsushi Uchida, Masaru Karai, Junji Watanabe
  • Patent number: 11221437
    Abstract: Provided are a protein-matrix microlens array diffraction device and a preparation method thereof. The protein-matrix microlens array diffraction device includes a matrix of a protein crystal. A largest side of the protein crystal has a length of 100 to 500 ?m, a surface of the protein crystal where the largest side is located is processed to have an array of microlens-like protrusions, a distance p between two adjacent microlens-like protrusions of the array of microlens-like protrusions is in a range of 10 to 100 ?m, a diameter d of the microlens-like protrusion is in a range of 2 to 10 ?m, and a height h of the microlens-like protrusion is in a range of 0.05 to 2 ?m.
    Type: Grant
    Filed: May 18, 2021
    Date of Patent: January 11, 2022
    Inventors: Lan Jiang, Jianfeng Yan, Jiachen Yu
  • Patent number: 11221556
    Abstract: Disclosed is a method for fabricating a spherical concave mirror in an optical waveguide based on ultraviolet (UV) grayscale lithography. A key component is a specially designed mask pattern composed of a rectangle as well as a semicircle adjacent to the rectangle, where a rectangular area has no grayscale distribution, and UV light penetrating through different portions of the rectangular area has the same intensity; a semicircular area has the grayscale distribution, and the UV light penetrating through the semicircular area with the grayscale distribution is changed in intensity from the center of a circle in the radius direction according to a special function distribution law; an interlayer photoresist in the rectangular area is irradiated by the UV light penetrating through a mask plate and is developed to form an optical waveguide core.
    Type: Grant
    Filed: September 8, 2020
    Date of Patent: January 11, 2022
    Inventors: Tingyun Wang, Chuanlu Deng, Xueting Wang, Yi Huang, Xiaobei Zhang
  • Patent number: 11168401
    Abstract: A system and a method for a nanostructured film including a first layer for reflecting at least a portion of an electromagnetic radiation and a second layer for receiving the remainder of the electromagnetic radiation through the first layer and subsequently reflecting at least a portion of the received electromagnetic radiation through the first layer, wherein two electromagnetic radiations with the same wavelength reflected by the first and second layers respectively are combined to form a strengthened electromagnetic radiation, the wavelength of the strengthened electromagnetic radiation being variable based on the physical property of the first layer.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: November 9, 2021
    Assignee: City University of Hong Kong
    Inventors: Jian Lu, Yu Bu, Ge Wu
  • Patent number: 11169309
    Abstract: An infrared bandpass filter structure is formed by alternately stacking a plurality of silicon aluminum hydride layers and a plurality of low-refractive-index layers. The plurality of low-refractive-index layers include oxide. The infrared bandpass filter structure has a pass band that at least partly overlaps the wavelength range of 800 nm-1600 nm. The pass band have a center wavelength, and the center wavelength has a magnitude of shift that is less than 11 nm when an incident angle changes from 0° to 30. An infrared bandpass filter includes the infrared bandpass filter structure formed on a first side surface of a substrate and an antireflection layer formed on a second side surface of the substrate that is at a side opposite to the first side surface.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: November 9, 2021
    Inventors: Cheng-Hsing Tsou, Wei-Hao Cheng, Pei-Yuan Ni
  • Patent number: 10994489
    Abstract: An optical shaping apparatus includes a first optical unit including a light modulation element that has a plurality of pixels and modulates light from a first light source for each pixel and irradiating modulation light from the light modulation element onto the photocurable resin through the light-transmissive portion, a second optical unit including a scanning member configured to deflect light from a second light source, the second optical unit being configured to irradiate scanning light from the scanning member onto the photocurable resin through the light-transmissive portion, the first and second optical units not including a common optical member, and a controller that controls the light modulation element and the scanning member so as to irradiate the modulation light onto a first resin area, and to irradiate the scanning light onto a second resin area in the photocurable resin.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: May 4, 2021
    Inventor: Yuichi Tomioka
  • Patent number: 10932901
    Abstract: Methods and systems wherein laser induced refractive index changes by focused femtosecond laser pulses in optical polymeric materials or optical tissues is performed to address various types of vision correction.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: March 2, 2021
    Assignee: University of Rochester
    Inventors: Leonard Zheleznyak, Scott Catlin
  • Patent number: 10884334
    Abstract: To provide a photocurable resin composition comprising an N-vinyl amide compound, a polyfunctional (meth)acrylate monomer and a photopolymerization initiator and having excellent adhesion to an optical substrate and free from an appearance defect such as a crack or shrinkage and a laminate having a coat layer obtained by curing the photocurable resin composition.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: January 5, 2021
    Inventors: Masayuki Miyazaki, Junji Momoda, Junji Takenaka, Takashi Tamukai
  • Patent number: 10886703
    Abstract: A distributed Bragg reflector (DBR) structure on a substrate includes a high refractive index layer comprising titanium oxide (TiO2) and a low refractive index layer having a high carbon region and at least one low carbon region that contacts the high refractive index layer. Multiple layers of the high refractive index layer and the low refractive index layer are stacked. Typically, the multiple layers of the high refractive index layer and the low refractive index layer are stacked to a thickness of less than 10 microns. Each of the respective layers of the high refractive index layer and the low refractive index layer have a thickness of less than 0.2 microns.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: January 5, 2021
    Assignee: Lumileds LLC
    Inventors: Ken Shimizu, Hisashi Masui, Ted Wangensteen
  • Patent number: 10879082
    Abstract: An array of nanowires with a period smaller than 150 nm can be used for optoelectronics and semiconductor electronics applications. A hard nanomask is registered to a lithographically defined feature and can be used to manufacture such structures. This nanomask includes a substantially periodic array of substantially parallel elongated elements having a wavelike cross-section. The fabrication method of the nanomask may be contactless and uses ion beams.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: December 29, 2020
    Assignee: Wostec, Inc.
    Inventors: Valery K. Smirnov, Dmitry S. Kibalov
  • Patent number: 10877188
    Abstract: A composite diffuser plate capable of inhibiting luminance unevenness from occurring locally is described. The composite diffuser plate includes a first diffuser plate and a second diffuser plate arranged in this order from an incident side. At least one of the first diffuser plate and the second diffuser plate is composed of a random microlens array including multiple microlenses. The microlenses include a plurality of parameters defining a lens shape. At least one of the plural parameters is randomly distributed. The random microlens array causes a phase difference to be generated in transmitted light.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: December 29, 2020
    Assignee: KURARAY CO., LTD.
    Inventors: Junji Watanabe, Masaru Karai, Atsushi Uchida
  • Patent number: 10844166
    Abstract: The present invention relates to a thermoplastic copolymer, block copolymer, and statistical copolymer comprising plural acrylated polyol monomeric units having different degrees of acrylation of hydroxyl groups. The acrylated polyol monomeric units have an average degree of acrylation greater than 1 and less than the number of the hydroxyl groups of the polyol. The present invention also relates to a method of making the thermoplastic copolymer, block copolymer, and statistical copolymer, and using them in various applications, such as asphalt rubber modifiers, adhesives, or an additive in a fracking fluid for oil fracking.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: November 24, 2020
    Inventors: Eric W. Cochran, R. Christopher Williams, Nacu Hernandez, Elvira Joana Ferreira Peralta, Michael John Forrester
  • Patent number: 10845516
    Abstract: A diffractive optical element is provided that includes a first resin layer having steps on one surface, a second resin layer integrated with the first resin layer in tight contact, and a high refractive index layer disposed between a wall surface of the first resin layer and a wall surface of the second resin layer, wherein the high refractive index layer has a refractive index higher than those of the first resin layer and of the second resin layer, and the high refractive index layer is formed continuously to extend beyond the boundary between the wall surface and the inclined surface adjacent thereto, and to partly overlap the inclined surface.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: November 24, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kenichi Iwata
  • Patent number: 10843419
    Abstract: A display includes a first interface section provided with a relief-type diffraction grating constituted by a plurality of grooves, and a second interface section provided with a plurality of recesses or projections arranged two-dimensionally at a center-to-center distance smaller than the minimum center-to-center distance of the plural grooves, and each having a forward tapered shape.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: November 24, 2020
    Inventors: Toshiki Toda, Akira Nagano, Shingo Maruyama
  • Patent number: 10809455
    Abstract: A laser-written waveguide comprising, an optical substrate having a first refractive index, a plurality of laser-written tracks buried within the optical substrate and having a second refractive index lower than the first refractive index, one or more concentric geometric regions bounding the plurality of laser-written tracks and a waveguide channel delimited by said concentric geometric regions, wherein said waveguide channel is configured to allow formation of an optical mode.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: October 20, 2020
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Mark Thomas Triplett, Dzhakhangir V. Khaydarov, Xiaozhen Xu, Gennady Imeshev
  • Patent number: 10684419
    Abstract: Optical waveguide connector elements for optical coupling optical components of an optical assembly, such as the edge coupling of optical printed circuit boards. In one embodiment, a waveguide connector element includes a first end face and a second end face, a pre-existing optical waveguide within or on a surface of the waveguide connector element, and a laser written optical waveguide optically coupled to an end of the pre-existing optical waveguide and extending toward one of the first end face and the second end face.
    Type: Grant
    Filed: January 21, 2019
    Date of Patent: June 16, 2020
    Assignee: Corning Optical Communications LLC
    Inventors: Davide Domenico Fortusini, Lars Martin Otfried Brusberg, James Scott Sutherland
  • Patent number: 10684397
    Abstract: A refractive coating such as a white layer is disposed on a housing component of a portable electronic device. The refractive coating includes pigment particles such as titanium dioxide suspended in a carrier medium such as a polymer matrix. The pigment particles each define air pores or other voids formed by at least partially sintering the pigment particles. A difference in refractive index between the air pores and the pigment particles is greater than that between the carrier medium and the pigment particles. Incident light is refracted at interfaces between the pigment particles and the air pores, increasing light refracted by the refractive coating compared to refractive coatings including pigment particles lacking the air pores.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: June 16, 2020
    Assignee: Apple Inc.
    Inventor: James R. Wilson
  • Patent number: 10628905
    Abstract: Novel tools and techniques for signatures and entitlements of entertainment printables are provided. A method might include receiving, at a three-dimensional (“3-D”) printer, a request from a user to print a 3-D model and determining, with the 3-D printer, whether the user is authorized to print the 3-D model. The method might further include printing, with the 3-D printer, the 3-D model based on a determination that the user is authorized to print the 3-D model and embedding, with the 3-D printer, within the 3-D model, a unique identifier. The unique identifier may indicate that the user was authorized to print the 3-D model and identify at least one of an original creator of the 3-D model, the 3-D model itself, a limited edition of the 3-D model, or an owner of the 3-D model.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: April 21, 2020
    Assignee: CenturyLink Intellectual Property LLC
    Inventors: Charles I. Cook, Steven M. Casey, Robert J. Morrill
  • Patent number: 10566364
    Abstract: A resonant-filter image sensor includes a pixel array including a plurality of pixels and a microresonator layer above the pixel array. The microresonator layer includes a plurality of microresonators formed of a first material with an extinction coefficient less than 0.02 at a free-space wavelength of five hundred nanometers. Each of the plurality of pixels may have at least one of the plurality of microresonators at least partially thereabove. The resonant-filter image sensor may further include a layer covering the microresonator layer that has a second refractive index less than a first refractive index, the first refractive index being the refractive index of the first material. Each microresonator may be one of a parallelepiped, a cylinder, a spheroid, and a sphere.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: February 18, 2020
    Assignee: OmniVision Technologies, Inc.
    Inventors: Yuanwei Zheng, Gang Chen, Duli Mao, Dyson H. Tai, Lequn Liu
  • Patent number: 10490402
    Abstract: A processing method is disclosed that enables an improved directed self-assembly (DSA) processing scheme by allowing the formation of improved guide strips in the DSA template that may enable the formation of sub-30 nm features on a substrate. The improved guide strips may be formed by improving the selectivity of wet chemical processing between different organic layers or films. In one embodiment, treating the organic layers with one or more wavelengths of ultraviolet light may improve selectivity. The first wavelength of UV light may be less than 200 nm and the second wavelength of UV light may be greater than 200 nm.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: November 26, 2019
    Assignee: Tokyo Electron Limited
    Inventors: Mark Somervell, Ian Brown, Ihsan Simms, Ainhoa Negreira, Kathleen Nafus
  • Patent number: 10443811
    Abstract: A microlens array includes N microlenses arranged in a predetermined direction on an x-y plane. A projection onto the x-y plane of the vertex of each microlens is arranged in the vicinity of a lattice point of a reference lattice on the x-y plane, the lattice spacing of the reference lattice in the predetermined direction being D/M (millimeters) where M is a positive integer. A distance between two sides of a lens facing each other is approximately equal to D, and a distance between the projection onto the x-y plane of the vertex of the lens and the projection onto the x-y plane of a side of the lens is D/2+?i. Letting n represent the refractive index of the material of each microlens and letting f (millimeters) represent the focal length of each microlens, the following relationships are satisfied. 0.0042 D < D 2 ? ? f = D ? ( n - 1 ) 2 ? ? R 0.0048 ? f ? { 1 + ( D / 2 ? ? f ) 2 } < ? < 0.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: October 15, 2019
    Assignee: NALUX CO., LTD.
    Inventors: Daisuke Seki, Kayoko Fujimura, Masato Okano, Yukinobu Nishio, Tomohito Kuwagaito
  • Patent number: 10421857
    Abstract: A photocurable composition including a fluorine-based polymeric monomer, a (meth)acrylate monomer, and a photoinitiator. An amount of the fluorine-based polymeric monomer is in a range of about 20 parts to less than 40 parts by weight based on 100 parts by weight of the photocurable composition.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: September 24, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jiyun Park, Jaehong Park, Sanghee Yu, Hyungguen Yoon, Kyunghee Lee, Kyungseon Tak, Minhyuck Kang
  • Patent number: 10406973
    Abstract: A visor for use in a vehicle is disclosed. The visor comprises a pivot rod and a first and second shell being engagable to form a visor body. The visor also comprises a vanity and a mirror having at least one clear portion arranged at or near an end thereof. The visor also comprises a circuit board secured to the first shell and a light emitting diode secured to a surface of the circuit board. The visor also comprises a ramp arranged in a back surface of the mirror wherein the ramp is aligned with at least one clear portion of the mirror. The visor mirror having a ramp arranged therein may allow for light to be redirected towards the user of the mirror from the LED.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: September 10, 2019
    Inventors: Anthony R. Janowiak, Andrew Joseph Wieczorek, Martin J. Rathsburg, Jr., Leslie Hinds, John Gerald Nowakowski, Mark Anthony Schuetz
  • Patent number: 10412319
    Abstract: An imaging apparatus includes an image sensor, an optical system, a control circuit, and a signal processing circuit. The image sensor includes a light-shielding film in which light-transmitting regions and light-shielding regions are alternately arranged in at least a first direction within a plane, a photodetector disposed opposite the light-shielding film, and an optically-coupled layer disposed between the light-shielding film and the photodetector. The optically-coupled layer includes a grating which generates a propagating light that propagates in the first direction and a transmitting light that transmits the optically-coupled layer when light of a predetermined wavelength enters the light-transmitting regions. The signal processing circuit extracts two different frames from frames included in a moving image acquired by the image sensor.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: September 10, 2019
    Inventors: Kenji Narumi, Seiji Nishiwaki
  • Patent number: 10261584
    Abstract: A user interface includes both a touchscreen for tactile input and one or more lensless optical sensors for sensing additional, remote gestures. Users can interact with the user interface in a volume of space near the display, and are thus not constrained to the relatively small area of the touchscreen. Remote hand or face gestures can be used to turn on or otherwise alter the tactile user interface. Shared user interfaces can operate without touch, and thus avoid cross-contamination of e.g. viruses and bacteria.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: April 16, 2019
    Assignee: Rambus Inc.
    Inventors: Patrick R. Gill, David G. Stork, Thomas Vogelsang
  • Patent number: 10232575
    Abstract: A method controls fabrication of a multi-layered integrated computational element designed to have a target optical spectrum. A transfer function is generated relating a blue wavelength, shift between an as-annealed optical spectrum and an as-fabricated optical spectrum of a first integrated computational element at a standard temperature. Using the transfer function, an initial compensating red shift is incorporated into a second integrated computational element such that the as-annealed optical spectrum of the second integrated computational element matches the target optical spectrum.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: March 19, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: David L. Perkins, Michael N. Simcock
  • Patent number: 10207680
    Abstract: In a lens plate (18) for an optical sensor device in a vehicle, in particular for a rain sensor, with a transmitter-side lens structure (26) and a receiver-side lens structure (32), the transmitter-side lens structure (26) partially is provided with anti-transmission features which in individual regions of the lens plate (18) partially or completely prevent the passage of the light emitted by a light transmitter (14).
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: February 19, 2019
    Inventor: Ulrich Backes
  • Patent number: 10199415
    Abstract: The method is provided for fabricating an optical metasurface. The method may include depositing a conductive layer over a holographic region of a wafer and depositing a dielectric layer over the conducting layer. The method may also include patterning a hard mask on the dielectric layer. The method may further include etching the dielectric layer to form a plurality of dielectric pillars with a plurality of nano-scale gaps between the pillars.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: February 5, 2019
    Assignee: Elwha LLC
    Inventors: Gleb M. Akselrod, Erik E. Josberger, Mark C. Weidman
  • Patent number: 10073302
    Abstract: An alignment film for liquid crystal display device includes a first portion positioned towards to the liquid crystal layer and a second portion positioned away from the liquid crystal layer. The first portion provides improved anchoring force while the second portion exhibits a lower volume resistance than the first portion. Thus, AC image sticking and DC image sticking can be minimized at the same time.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: September 11, 2018
    Assignee: LG Display Co., Ltd.
    Inventors: SeungRyull Park, HyunJin Park, JinPil Kim, Han Jin Ahn, Hanseok Lee, Su-Bin Lee
  • Patent number: 10061194
    Abstract: In accordance with some aspects of the present disclosure, a maskless interferomeric lithography system for fabricating a three-dimensional (3D) photonic crystal using a multiple two-beam-exposures is disclosed. The system can comprise an illumination system comprising an optical arrangement operable to receive radiation from a radiation source and provide three or more tilted two-beam interference pattern exposures to be combined into a three-dimensional pattern; and a substrate operable to be supported by a substrate table, wherein the substrate comprises a photoresist formed on a top surface of the substrate and operable to receive the three-dimensional pattern and wherein means are provided to adjust the position of the substrate in all six mechanical degrees of freedom.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: August 28, 2018
    Assignee: STC.UNM
    Inventors: Steven R. J. Brueck, Alexander K. Raub
  • Patent number: 10062595
    Abstract: Various embodiments of aligning wafers are described herein. In one embodiment, a photolithography system aligns a wafer by averaging individual via locations. In particular, some embodiments of the present technology determine the center locations of individual vias on a wafer and average them together to obtain an average center location of the set of vias. Based on a comparison of the average center location to a desired center location, the present technology adjusts the wafer position. Additionally, in some embodiments, the present technology compares wafer via patterns to a template and adjusts the position of the wafer based on the comparison.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: August 28, 2018
    Assignee: Micron Technology, Inc.
    Inventors: Yang Chao, Keith E. Ypma, Steve J. Strauch
  • Patent number: 10043942
    Abstract: An embodiment of the invention comprises a first III-V semiconductor structure including a first light emitting layer disposed between a first n-type region and a first p-type region, and a second III-V semiconductor structure including a second light emitting layer disposed between a second n-type region and a second p-type region. A first contact is formed on a top surface of the first III-V semiconductor structure. A second contact is formed on a bottom surface of the second III-V semiconductor structure. A bonding structure is disposed between the first and second III-V semiconductor structures.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: August 7, 2018
    Assignee: Luminus Devices, Inc.
    Inventors: Ting Li, Thomas Yuan
  • Patent number: 9939577
    Abstract: A diffraction structure includes a supporting layer, a high refractive index layer, and a low refractive index layer. The high refractive index layer has a first refractive index, is formed above the supporting layer, configures a waveguide guiding input light input from an input terminal along a specific direction, and includes an opening section formed along the specific direction. The low refractive index layer has a second refractive index lower that the first refractive index, and is formed so as to cover the high refractive index layer and fill the opening section. The opening section modifies the input light in at least one of direction or speed according to a wavelength of the input light, and outputs the modified light as output light.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: April 10, 2018
    Inventors: Daisuke Inoue, Tadashi Ichikawa, Akari Nakao, Tatsuya Yamashita, Makoto Nakai
  • Patent number: 9920143
    Abstract: A fluorine-containing highly branched polymer obtained by polymerizing a polyfunctional monomer A that has two or more radically polymerizable double bonds and all or a portion of which has a bisphenol structure, a monomer B having a fluoroalkyl group and at least one radically polymerizable double bond, within a molecule, and a monomer C having at least one ring-opening polymerizable group selected from the group including an epoxy group and an oxetanyl group, and having at least one radically polymerizable double bond, within a molecule, under the presence of a polymerization initiator D with an amount of 5% by mole to 200% by mole to the number of moles of the polyfunctional monomer A; an epoxy resin composition including the polymer; and an epoxy resin cured product obtained from the resin composition.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: March 20, 2018
    Inventors: Tomoko Misaki, Motonobu Matsuyama, Masayuki Haraguchi, Masaaki Ozawa
  • Patent number: 9879108
    Abstract: The composition includes (A) a pigment; and (B) a polymer having (b-1) a bulky amine moiety, (b-2) an acid group, and (b-3) a constituent unit derived from a macromonomer having a weight average molecular weight of 1000 to 50000, in which the bulky amine moiety (b-1) has a nitrogen atom, carbon atoms X1 bonded with the nitrogen atom, and carbon atoms Y1 bonded with the carbon atoms X1, and a total carbon number of the carbon atoms X1 and the carbon atoms Y1 is 7 or more.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: January 30, 2018
    Assignee: FUJIFILM Corporation
    Inventors: Hiroaki Idei, Toshihito Kuge, Takashi Kawashima
  • Patent number: 9864208
    Abstract: In an optical display system that includes a waveguide with multiple diffractive optical elements (DOEs), one or more of the DOEs is configured with gratings that have varying depth and varying directions for depth modulation, in which the modulation direction is aligned with the steepest change (i.e., slope) of grating depth. Depth modulation direction may change at a point of transition between different regions in the DOE. For example, with a zero axis being defined along a line parallel to a long side of a DOE, the depth modulation direction can change from a negative angle, with respect to the axis in the plane of the waveguide in one region, to a positive angle in another region, or vice versa. By varying depth modulation direction in a DOE, display uniformity in the optical display system may be increased.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: January 9, 2018
    Inventors: Tuomas Vallius, Lauri Sainiemi