By Changing Physical Characteristics (e.g., Shape, Size Or Contours) Of An Optical Element Patents (Class 359/290)
  • Patent number: 11492251
    Abstract: In an embodiment, a method for manufacturing a micro-electro-mechanical systems (MEMS) transducer device includes providing a substrate body with a surface, depositing an etch-stop layer (ESL) on the surface, depositing a sacrificial layer on the ESL, depositing a diaphragm layer on the sacrificial layer and removing the sacrificial layer, wherein depositing the sacrificial layer includes depositing a first sub-layer of a first material and depositing a second sub-layer of a second material, and wherein the first material and the second material are different materials.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: November 8, 2022
    Assignee: SCIOSENSE B.V.
    Inventors: Kailash Vijayakumar, Remco Henricus Wilhelmus Pijnenburg, Willem Frederik Adrianus Besling, Sophie Guillemin, Jörg Siegert
  • Patent number: 11495186
    Abstract: Examples are disclosed herein related to controlling a scanning mirror system. One example provides a display device, comprising a light source, a scanning mirror system configured to scan light from the light source in a first direction at a first, higher scan rate, and in a second direction at a second, lower scan rate, and a drive circuit configured to control the scanning mirror system to display video image data by providing a control signal to the scanning mirror system to control scanning in the second direction, and for each video image data frame of at least a subset of video image data frames, combining the control signal with an adjustment signal to adjust the scanning in the second direction, the adjustment signal comprising a low pass filtered signal with a cutoff frequency based on a lowest resonant frequency of the scanning mirror system in the second direction.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: November 8, 2022
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Algird Michael Gudaitis, Mark Alan Champion
  • Patent number: 11476245
    Abstract: The present disclosure generally relates to the combination of MEMS intrinsic technology with specifically designed solid state ESD protection circuits in state of the art solid state technology for RF applications. Using ESD protection in MEMS devices has some level of complexity in the integration which can be seen by some as a disadvantage. However, the net benefits in the level of overall performance for insertion loss, isolation and linearity outweighs the disadvantages.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: October 18, 2022
    Assignee: Qorvo US, Inc.
    Inventors: Roberto Gaddi, James Douglas Huffman, Chenhui Niu, Ray Parkhurst
  • Patent number: 11459229
    Abstract: An MMS includes a substrate, an element movable with respect to the substrate and a frame structure. A first pair of springs is arranged between the substrate and the frame structure along a first spring direction. A second pair of springs is arranged between the movable element and the frame structure along a second spring direction. The frame structure is configured to generate tensile stress in the second pair of springs at tensile stress acting in the first pair of springs.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: October 4, 2022
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Peter Duerr, Detlef Kunze, Andreas Gehner, Martin Friedrichs
  • Patent number: 11454804
    Abstract: Embodiments of the disclosure provide a scanning mirror assembly for an optical sensing system. The scanning mirror assembly may include a scanning mirror configured to rotate around an axis of rotation. The scanning mirror assembly may further include a plurality of torsion springs coupled to at least one side of the scanning mirror along the axis of rotation. In certain aspects, the plurality of torsion springs may collectively have a non-linear spring constant and a linear spring constant. In certain other aspects, a ratio of the non-linear spring constant over the linear spring constant may meet a predetermined threshold.
    Type: Grant
    Filed: April 9, 2021
    Date of Patent: September 27, 2022
    Assignee: BEIJING VOYAGER TECHNOLOGY CO., LTD.
    Inventors: Youmin Wang, Yufeng Wang, Qin Zhou, Gary Li
  • Patent number: 11442327
    Abstract: An embodiment of the present application provides a display panel including a first substrate, a second substrate, barrier walls, and an electrophoretic material. The second substrate is disposed opposite to the first substrate, and the second substrate includes a substrate layer, a metal layer, a first protective layer, a nanoparticle layer, and a second protective layer arranged in a stack. The second protective layer is disposed on a side of the second substrate facing the first substrate. The barrier walls are disposed between the first substrate and the second substrate, a plurality of receiving spaces are defined by the barrier walls, the first substrate, and the second substrate, and the electrophoretic material is contained in each of the receiving spaces.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: September 13, 2022
    Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Xingwu Chen
  • Patent number: 11437603
    Abstract: To simplify a process of manufacturing a light-emitting module for displaying an image. The light-emitting module includes light-emitting elements, a protective layer, color changing members, and an optical layer. The light-emitting elements are arranged on a substrate. The protective layer is formed in such a way as to cover the light-emitting elements. The color changing members are disposed in such a way as to correspond to at least some of the light-emitting elements with the protective layer interposed between the color changing members and the some of the light-emitting elements. The optical layer is formed in such a way as to cover the color changing members and the protective layer. This optical layer condenses or scatters light with its curved shape.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: September 6, 2022
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Kensaku Maeda, Kimihiro Shinya, Atsushi Yamamoto
  • Patent number: 11428964
    Abstract: A transparent optical element may include a layer of an electroactive ceramic disposed between transparent electrodes, such that the electrodes are each oriented perpendicular to a non-polar direction of the ceramic layer. Optical properties of the optical element, including transmissivity, haze, and clarity may be improved by the application of a voltage to the electroactive ceramic, and an associated phase transformation.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: August 30, 2022
    Assignee: Meta Platforms Technologies, LLC
    Inventors: Spencer Allan Wells, Katherine Marie Smyth, Andrew John Ouderkirk
  • Patent number: 11422364
    Abstract: Techniques for artifact mitigation in an optical system are disclosed. Light associated with a world object is received at the optical system, which is characterized by a world side and a user side. Light associated with a virtual image is projected onto an eyepiece of the optical system, causing a portion of the light associated with the virtual image to propagate toward the user side and light associated with an artifact image to propagate toward the world side. A dimmer of the optical system positioned between the world side and the eyepiece is adjusted to reduce an intensity of the light associated with the artifact image impinging on the dimmer and an intensity of the light associated with the world object impinging on the dimmer.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: August 23, 2022
    Assignee: Magic Leap, Inc.
    Inventors: Kevin Richard Curtis, Samarth Bhargava, Bradley Jay Sissom, Victor Kai Liu, Chulwoo Oh, Ravi Kumar Komanduri, Kevin Messer
  • Patent number: 11372140
    Abstract: A liquid lens includes a first plate in which a cavity accommodating a first liquid and a second liquid is formed, the first liquid being conductive and the second liquid being non-conductive; a first electrode disposed on the first plate; a second electrode disposed under the first plate; a second plate disposed on the first electrode; and a third plate disposed under the second electrode, wherein an opening formed in the cavity adjacent to the second plate has a diameter of 1.6 mm to 1.9 mm, and wherein the first plate has a thickness of 0.45 mm to 0.55 mm.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: June 28, 2022
    Assignees: LG INNOTEK CO., LTD., CORNING INCORPORATED
    Inventor: Ji Young Jung
  • Patent number: 11372240
    Abstract: A mirror unit includes an optical scanning device, a frame member, and a window member. The frame member includes first and second wall portions facing each other in an X-axis direction. The first wall portion is higher than the second wall portion. The window member is disposed on a top surface of the first wall portion and a top surface of the second wall portion and is inclined with respect to a mirror surface of the optical scanning device. In a cross-section parallel to the X-axis direction, the first wall portion is separated from a first line passing through a first end at a side of the first wall portion in the mirror surface and a first corner portion formed at the side of the first wall portion by an outer surface opposite to the frame member and a first side surface in the window member.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: June 28, 2022
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Daiki Suzuki, Tomoyuki Ide, Yuki Morinaga
  • Patent number: 11327353
    Abstract: A display panel, a manufacturing method thereof and a display device are provided. The display panel includes a display substrate and an opposing substrate arranged opposite to each other, a liquid crystal layer and a liquid crystal control electrode, the display substrate includes a display region and a first region disposed in the display region, the display substrate is provided with a recessed portion in the first region on a side facing the opposing substrate, the liquid crystal layer is accommodated into the recessed portion and disposed between the display substrate and the opposing substrate and the liquid crystal control electrode is configured to allow the liquid crystal layer to form as a liquid crystal lens after applied with voltage.
    Type: Grant
    Filed: January 20, 2020
    Date of Patent: May 10, 2022
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Jingquan Wang, Hongli Wang, Li Tian
  • Patent number: 11320661
    Abstract: A device for alternating between different shapes of a light beam includes a multi-plane light conversion (MPLC) device that is used to apply a unitary transformation to a light beam by way of a succession of elementary transformations. The MPLC faces the light source so that the light beam is emitted into the MPLC device along a reference axis. The device further includes automated means arranged upstream of the multi-plane light conversion (MPLC) device for varying the transverse position and/or the angle of incidence of the light beam in relation to the reference axis and/or to vary the angle of rotation of the light beam about the reference axis. The MPLC device is designed to transform a variation of the transverse position and/or the angle of incidence and/or the angle of rotation of the light beam into a modification of the specific shape of the light beam.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: May 3, 2022
    Assignee: CAILabs
    Inventors: Pauline Boucher, Olivier Pinel, Jean-François Morizur, Guillaume Labroille, Nicolas Treps
  • Patent number: 11323823
    Abstract: An MEMS acoustic transducer includes a substrate having an opening formed therein, a diaphragm comprising a slotted insulative layer, and a first conductive layer. The slotted insulative layer is attached around a periphery thereof to the substrate and over the opening, and the first conductive layer is disposed on a first surface of the slotted insulative layer. A backplate is separated from the diaphragm and disposed on a side of the diaphragm opposite the substrate.
    Type: Grant
    Filed: January 18, 2021
    Date of Patent: May 3, 2022
    Assignee: KNOWLES ELECTRONICS, LLC
    Inventors: Shubham Shubham, Hungchien Lin
  • Patent number: 11314109
    Abstract: A spatial light modulator cell and arrays of spatial light modulator cells are disclosed. The spatial light modulator cells can comprise a phase change material (PCM) having a first side and a second side; an optical reflector configured to reflect an optical beam passing from the first side to the second side; and a PCM heater thermal conductively coupled to the PCM, wherein thermal modulation of the PCM modulates a phase of the PCM which varies light transmission through the PCM. Methods of making spatial light modulator cells and arrays are also disclosed.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: April 26, 2022
    Assignee: URL Laboratories, LLC
    Inventors: Jeong-Sun Moon, Adour V. Kabakian, David H. Chow, Richard M. Kremer
  • Patent number: 11314078
    Abstract: An optical path adjusting mechanism including a rotating base, an optical element, a coil, a first spring and a second spring is provided. A first area and a second area are diagonally disposed on the rotating base. The optical element is disposed in the rotating base. The coil is disposed around a periphery of the rotating base. One terminal of the first spring is connected to the first area of the rotating base. One terminal of the second spring is connected to the second area of the rotating base.
    Type: Grant
    Filed: August 6, 2020
    Date of Patent: April 26, 2022
    Assignee: Young Optics Inc.
    Inventors: Wei-Szu Lin, Chao-Shun Chen, Chia-Chen Liao, Yu-Chen Chang, Chien-Hsing Tsai
  • Patent number: 11286157
    Abstract: A method for packaging a MEMS device includes the following steps. A metal cap is provided that is partially anchored to a wafer comprising the MEMS device where at least one point between the cap and the wafer is unanchored, the metal cap arranged to at least substantially extend over the MEMS device. An electrical contact pad is electrically coupled to the MEMS device. A sealing layer is provided over the metal cap and the wafer such that the sealing layer seals a gap between an unanchored portion of the metal cap and the wafer to encapsulate the MEMS device, where the electrical contact pad and the metal cap include the same composition.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: March 29, 2022
    Assignee: VANGUARD INTERNATIONAL SEMICONDUCTOR SINGAPORE PTE. LTD.
    Inventors: You Qian, Humberto Campanella Pineda, Rakesh Kumar
  • Patent number: 11262577
    Abstract: The present disclosure is directed to compact packaging for optical MEMS devices, such as one- and two-dimensional beam scanners. An embodiment in accordance with the present disclosure includes a light source and a MEMS-based scanning element for steering at least a portion of the light provided by the light source in at least one dimension as an output light signal, as well as one or more optical elements for collimating and/or redirecting light within a sealed chamber defined by the elements of a housing. In some embodiments, the one or more optical elements include a reflective lens that collimates the light provided by the light source while simultaneously correcting phase-front error imparted by the scanning element while steering the output beam.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: March 1, 2022
    Assignee: AdHawk Microsystems
    Inventors: Niladri Sarkar, Dong Yan, Geoffrey Lee, Arash Rohani, Nino Zahirovic, Duncan Wesley Strathearn
  • Patent number: 11249581
    Abstract: Provided are a touch control structure, a touch control method and a touch control device. The touch control structure includes: a touch control layer; an electrode layer disposed on the touch control layer; and a dielectric material layer disposed on a side of the electrode layer away from the touch control layer, wherein the dielectric material layer has a lipophilicity variable with a voltage applied by the electrode layer.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: February 15, 2022
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Qi Wang, Tingting Wang, Bo Zhou, Yongzhi Song
  • Patent number: 11237381
    Abstract: An electrowetting display panel includes a plurality of subpixels. Each of the plurality of subpixels having a subpixel area and an hater-subpixel area. The electrowetting display panel includes a first substrate, including a first insulating layer, a first electrode layer on the first insulating layer, and a first lyophobic layer on a side of the first electrode layer away from the first insulating layer; a second substrate facing the first substrate, including a second electrode layer, and a second lyophobic layer on the second electrode layer; and a plurality of sealing elements between the first substrate and the second substrate to define a plurality of fluid channels, each of the plurality of sealing elements being in the inter-subpixel area. The electrowetting display panel includes a first fluid reservoir and a respective one of the plurality of fluid channels between the first lyophobic layer and the second lyophobic layer.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: February 1, 2022
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE Technology Group Co., Ltd.
    Inventors: Mingyang Lv, Yue Li, Yanchen Li, Jinyu Li, Yu Zhao, Dawei Feng, Wang Guo
  • Patent number: 11204492
    Abstract: An electrowetting optical device is provided. The electrowetting optical device includes a conductive liquid and a non-conductive liquid. The non-conductive fluid includes a naphthalene based compound having Formula (I), Formula (II), and/or Formula (III): where R1, R2, and R3 are individually alkyl, aryl, alkoxy, or aryloxy groups; X includes carbon, silicon, germanium, tin, lead, and combinations thereof; and Z includes oxygen, sulfur, selenium, tellurium, polonium, and combinations thereof. The conductive liquid may additionally include a transmission recovery agent having Formula (IV) and/or Formula (V): where R4 is an alkyl, fluoroalkyl, aryl, alkoxy, or aryloxy group. The electrowetting optical device additionally includes a dielectric surface in contact with both the conductive and non-conductive liquids where the conductive and non-conductive liquids are non-miscible.
    Type: Grant
    Filed: January 6, 2020
    Date of Patent: December 21, 2021
    Assignee: Corning Incorporated
    Inventors: Benjamin Jean-Baptiste Francois Burger, Geraldine Malet Vasseur
  • Patent number: 11131453
    Abstract: A household appliance according to an embodiment of the present disclosure includes a front panel forming an exterior, a display window formed with a plurality of through holes having minute or fine sizes formed at the front panel, and the plurality of through holes are filled with a coating liquid including an anti-foaming agent.
    Type: Grant
    Filed: April 6, 2020
    Date of Patent: September 28, 2021
    Assignee: LG ELECTRONICS INC.
    Inventors: Minchel Kim, Jinseung Park
  • Patent number: 11134202
    Abstract: A plenoptic camera including a camera lens, a lenslet array having a plurality of microlenses and a photosensors array and having a plurality of photosensors. The camera lens has a spatial light modulator arranged in the aperture stop plane of the camera lens.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: September 28, 2021
    Assignee: INTERDIGITAL CE PATENT HOLDINGS, SAS
    Inventors: Thierry Borel, Valter Drazic
  • Patent number: 11124412
    Abstract: A manufacturing method for a micromechanical window structure including the steps: providing a substrate, the substrate having a front side and a rear side; forming a first recess on the front side; forming a coating on the front side and on the first recess; and forming a second recess on the rear side, so that the coating is at least partially exposed, whereby a window is formed by the exposed area of the coatings.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: September 21, 2021
    Assignee: Robert Bosch GmbH
    Inventors: Joerg Muchow, Rainer Straub, Stefan Pinter
  • Patent number: 11125968
    Abstract: An optical module is provided. The optical module includes a substrate, an optical element, a cover plate, and a heat-dissipating device. The optical element is disposed on the substrate, wherein the optical element has a first side and a second side opposite the first side. The cover plate is disposed on the second side of the optical element, and extends over the substrate. In addition, the substrate is disposed between the heat-dissipating device and the optical element.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: September 21, 2021
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Chi-Ming Yang, Hui-Hsiung Wang
  • Patent number: 11119311
    Abstract: An actuator includes a driving beam that includes a beam extending in a direction orthogonal to a predetermined axis and supports an object to be driven; a driving source that is formed on a surface of the beam and causes the object to rotate around the predetermined axis; a sensor beam that extends in a direction that is the same as the direction in which the beam extends, one end of the sensor beam being connected to a lateral side of the beam; and a sensor that is formed on a surface of the sensor beam, the surface of the sensor beam and the surface of the beam facing the same direction.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: September 14, 2021
    Assignee: MITSUMI ELECTRIC CO, LTD.
    Inventor: Kensuke Yamada
  • Patent number: 11111133
    Abstract: A MEMS device includes a movable mirror and a solid material below the mirror that removes more heat from the mirror and creates more viscous drag than if the solid material were absent while allowing free movement of the mirror. A MEMS system includes a movable mirror, transparent window, electronic package, and a fluid-tight cavity between the window and the electronic package filled with a fluid exhibiting higher thermal conductivity than air. Another system has a reflective movable mirror, transparent window, and a lid that holds the window close to the mirror without obstructing its free movement. There is greater vertical clearance between the MEMS system and lid than between the mirror and MEMS system. Another MEMS device has a movable mirror and a surrounding substrate coplanar to the mirror. A gap between the mirror and substrate is filled with fluid. Finger structures extend from the mirror into the gap.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: September 7, 2021
    Assignee: MIRRORCLE TECHNOLOGIES, INC.
    Inventor: Veljko Milanovic
  • Patent number: 11079544
    Abstract: The present disclosure relates to semiconductor structures and, more particularly, to Waveguide absorbers and methods of manufacture are provided. The waveguide structure includes a photonics component and a spirally configured waveguide absorber coupled to a node of the photonics component which reduces optical return loss.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: August 3, 2021
    Assignee: GLOBALFOUNDRIES U.S. INC.
    Inventors: Yusheng Bian, Bo Peng, Michal Rakowski, Ajey Poovannummoottil Jacob
  • Patent number: 11069308
    Abstract: A pixel unit, a display method thereof and a display panel are provided. The pixel unit includes a display region and a non-display region, further includes a first substrate, a second substrate, a fluid layer and a control structure, the fluid layer is disposed between the first substrate and the second substrate, a fluid is disposed in the fluid layer, a flow of the fluid is controllable, and the control structure is disposed between the first substrate and the second substrate and configured to control the flow of the fluid.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: July 20, 2021
    Assignees: CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Shikang Ge, Yucheng Li, Wei Dai, Zhuqing Zhang, Hening Zhang, Xinyu Wang, Xufeng Tu, Wei Chen, Xu Li, Fei Pan, Xiangchao Chen, Zhongsen He, Ping Zhang, Jinhong Zhang
  • Patent number: 11054715
    Abstract: An optical deflection apparatus includes a deflection element and an incidence plane limiting unit limiting incidence of a laser beam on a range of an incidence plane. The deflection element including first and second panels, which including first and second repeating units. Each panel includes first and second substrates, a liquid crystal layer, an electrode for each repeating unit, and a common electrode. The electrodes of the first and second panel in a same repeating unit include first ends coinciding with each other, and second ends different from each other. The range is included in a range from the second end of the first electrode of the first panel in the first repeating unit to the second end of the first electrode of the second panel in the second repeating unit.
    Type: Grant
    Filed: November 11, 2020
    Date of Patent: July 6, 2021
    Assignee: TOPPAN PRINTING CO., LTD.
    Inventor: Masaki Koyama
  • Patent number: 11042056
    Abstract: A system, apparatus, and method include a first display device having a first set of pixels adapted to output light; a second display device having a second set of pixels adapted to output light; a first transparent plate spaced apart from each of the first display device and the second display device. The first transparent plate includes a first set of photonic crystal structures arranged in a first direction and adapted to deviate a first path of the light transmitted from the first and second set of pixels at a first angle. A second transparent plate is spaced apart from the first transparent plate and includes a second set of photonic crystal structures arranged in a second direction different from the first direction and adapted to deviate a second path of the light transmitted through the first transparent plate at a second angle to create a third path of light.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: June 22, 2021
    Assignee: United States of America as represented by the Secretary of the Air Force
    Inventor: Joshua K. Lentz
  • Patent number: 11036113
    Abstract: A photonically-sampled electronically-quantized analog-to-digital converter generates an optical signal comprising a series of optical pulses. The optical signal is split into a first and a second optical path. The split optical signal is detected in the first path and then the detected optical signal is converted to a reference digital signal. The split optical signal in the second path is modulated with an input RF signal and a plurality of demultiplexed RF-modulated optically-sampled signals is generated from the modulated optical signal. The plurality of demultiplexed RF-modulated optically-sampled signals is then pulse broadened, detected, and converted to a plurality of sampled-RF digital signals. The reference digital signal and the plurality of sampled-RF digital signals are digital signal processed to generate a digital representation of the input RF signal.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: June 15, 2021
    Assignee: Photonic Systems, Inc.
    Inventors: Gary E. Betts, Charles H. Cox
  • Patent number: 11016287
    Abstract: A spatial light modulator (SLM) having improved étendue, and methods of fabricating and operating the same are described. Generally, the SLM includes pixels each including a tensile membrane suspended over a surface of a substrate by posts at corners thereof. The tensile membrane includes an electrostatically deflectable piston and flexures through which the piston is coupled to the posts. A platform having first light reflective surfaces is supported above and separated from the piston by one or more central posts extending from the piston to the platform, and a face-plate including a second light reflective surface is suspended over the platform. The face-plate includes plurality of apertures through which the first light reflective surfaces are exposed. Electrostatic deflection of the piston brings light reflected from the first light reflective surfaces into constructive or destructive interference with light reflected from the second light reflective surface. Other embodiments are also described.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: May 25, 2021
    Assignee: SILICON LIGHT MACHINES CORPORATION
    Inventor: Alexander Payne
  • Patent number: 11009697
    Abstract: A mirror driving device includes a detector configured to output a detection signal having a ringing component included in oscillation of a mirror, a driving waveform generator configured to generate a sawtooth driving waveform that oscillates the mirror, a superimposing waveform generator configured to generate a superimposing waveform to be superimposed to the sawtooth driving waveform, a periodic signal generator configured to generate a periodic signal having a frequency identical to or near a ringing frequency of the ringing component, a correlation calculator configured to calculate a correlation value between the periodic signal and the detection signal, and an amplitude adjuster configured to adjust an amplitude of the superimposing waveform to reduce the ringing component, based on the correlation value.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: May 18, 2021
    Assignee: MITSUMI ELECTRIC CO., LTD.
    Inventor: Yugo Hayashi
  • Patent number: 10976703
    Abstract: A printing device (106) includes a laser source and a LCOS-SLM (Liquid Crystal on Silicon Spatial Light Modulator). The printing device generates a laser control signal and a LCOS-SLM control signal. The laser source (110) generates a plurality of incident laser beams based on the laser control signal. The LCOS-SLM (112) receives the plurality of incident laser beams, modulates the plurality of incident laser beams based on the LCOS-SLM control signal to generate a plurality of holographic wavefronts (214,216) from the modulated plurality of incident laser beams. Each holographic wavefront forms at least one corresponding focal point. The printing device cures a surface layer or sub-surface layer (406) of a target material (206) at interference points of focal points of the plurality of holographic wavefronts. The cured surface layer of the target material forms a three-dimensional printed content.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: April 13, 2021
    Assignee: Dualitas Ltd
    Inventor: Brian Mullins
  • Patent number: 10969596
    Abstract: Systems and methods for filtering an optical beam are described. In one implementation, a system for filtering an input optical beam includes a first beamsplitter, a first spectral slicing module, a second spectral slicing module, and a second beamsplitter. The first beamsplitter is configured to split the input optical beam into a first optical beam and a second optical beam. The first spectral slicing module has a first passband and is configured to filter the first optical beam. The second spectral slicing module has a second passband and is configured to filter the second optical beam. The second beamsplitter is configured to combine the first optical beam and the second optical beam into an output optical beam. The first and second spectral slicing modules may each comprise a longpass filter and a shortpass filter aligned along its optical axis, and the longpass filter and/or the shortpass filter are rotatable relative to the optical axis.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: April 6, 2021
    Assignee: Verily Life Sciences LLC
    Inventors: Supriyo Sinha, Cheng-Hsu Wu
  • Patent number: 10914114
    Abstract: Certain example embodiments relate to electric, potentially-driven shades usable with insulating glass (IG) units, IG units including such shades, and/or associated methods. In such a unit, a dynamic shade is located between the substrates defining the IG unit, and is movable between retracted and extended positions. The dynamic shade includes on-glass layers including a transparent conductor and an insulator or dielectric film, as well as a shutter. The shutter includes a resilient polymer, a conductor, and optional ink. The conductor may be transparent or opaque. When the conductor is reflective, overcoat layers may be provided to help reduce internal reflection. The shutter's conductor may have a modified surface, e.g., to promote diffuse reflection, reduce total internal reflection, etc. The polymer may be capable of surviving high-temperature environments and may be colored in some instances.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: February 9, 2021
    Assignee: Guardian Glass, LLC
    Inventors: Jason Blush, Timothy J. Frey
  • Patent number: 10901201
    Abstract: A reflection type display device and a display apparatus are provided. The reflection type display device includes: an upper transparent substrate, a lower substrate, and a display unit provided between the upper transparent substrate and the lower substrate. The display unit includes an electrode, a refractive deformation member and a black absorption layer. The refractive deformation member is configured to deform under control of the electrode to switch between a first state and a second state. In the first state, incident light through the upper transparent substrate is totally reflected by the refractive deformation member to form a bright state; and in the second state, incident light passes through the refractive deformation member and is absorbed by the black absorption layer to form a dark state.
    Type: Grant
    Filed: January 14, 2019
    Date of Patent: January 26, 2021
    Assignees: BEIJING BOE SPECIAL DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lihua Liu, Zhidong Wang
  • Patent number: 10884314
    Abstract: A switchable reflective colour filter is provided for use in a display device. The switchable reflective colour filter includes a plurality of sub-pixel regions of at least two colour types, each including a layer of phase change material which is switchable between a first state and a second state, the first and second states being two solid but structurally distinct states having different optical properties. Each sub-pixel region further includes two electrode layers, a mirror layer, and a spacer layer or air gap. The phase change material layer in each sub-pixel region is positioned between the two electrode layers, and separated from the mirror layer by the spacer layer or air gap. The switchable reflective colour filter may be incorporated into a display device including a pixelated switchable absorber. A luminance of coloured light reflected from any of the sub-pixel regions is controllably attenuated by the pixelated switchable absorber.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: January 5, 2021
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Benjamin John Broughton, Diego Gallardo, Edward David Heywood-Lonsdale, Hywel Hopkin
  • Patent number: 10857537
    Abstract: A droplet actuator device for conducting droplet operations is provided that comprises a substrate defines a device channel to conduct droplet operations. Electrodes are arranged proximate to the substrate. A drive circuit is connected to the electrodes. The drive circuit generates an electrode drive signal to drive the droplet operations based on a reference waveform. The electrode drive signal is partitioned into an AC modulated drive cycle formed of sub-cycles. The electrode drive signal switches, during the sub-cycle, between at least first and second states where a degree of modulation with respect to the reference waveform forms a balanced modulation pattern.
    Type: Grant
    Filed: July 5, 2016
    Date of Patent: December 8, 2020
    Assignee: ILLUMINA, INC.
    Inventor: Kirkpatrick W. Norton
  • Patent number: 10831017
    Abstract: A displacement increasing mechanism has a fixing portion, first and second actuators coupled to the fixing portion, a first beam having first and second end portions and coupled to the first actuator at the first end portion, a second beam having third and fourth end portions and coupled to the second actuator at the third end portion, and a drive target member coupled to a parallel arrangement portion at which the first and second beams are arranged in parallel with each other. The first actuator is driven to pull the first beam from a second end portion side in the direction of extending the first beam, and the second actuator is driven to push the second beam form a fourth end portion side in the direction of extending the second beam.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: November 10, 2020
    Assignee: SUMITOMO PRECISION PRODUCTS CO., LTD.
    Inventors: Mario Kiuchi, Ryohei Uchino, Tomonori Mori
  • Patent number: 10793422
    Abstract: A microelectromechanical systems (MEMS) package may include a wafer having a MEMS device; a metal cap partially anchored to the wafer where at least one point between the cap and the wafer is unanchored, the metal cap at least substantially extending over the MEMS device; an electrical contact pad electrically coupled to the MEMS device; and a sealing layer disposed over the metal cap and the wafer, such that the sealing layer seals a gap between an unanchored portion of the metal cap and the wafer to encapsulate the MEMS device; wherein the electrical contact pad and the metal cap include the same composition.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: October 6, 2020
    Assignee: VANGUARD INTERNATIONAL SEMICONDUCTOR SINGAPORE PTE. LTD.
    Inventors: You Qian, Humberto Campanella Pineda, Rakesh Kumar
  • Patent number: 10780467
    Abstract: Methods and apparatus for surface wetting control are disclosed. In certain described examples, an apparatus can expel fluid from a droplet on a surface using a transducer mechanically coupled to the surface. A first area of the surface can have a first wettability for the fluid, and a second area of the surface can have a second wettability for the fluid. The first wettability of the first area of the surface can be greater than the second wettability of the second area of the surface. The first area and the second area can be arranged in a patterned arrangement.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: September 22, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Daniel Lee Revier, Benjamin Stassen Cook, David Patrick Magee, Stephen John Fedigan
  • Patent number: 10775649
    Abstract: The invention provides an elastomeric optical device having a first optical state and a second optical state. The device is transparent when in the first optical state and is translucent or opaque when in the second optical state. The device comprises, in sequence, an optional substrate, a first transparent electrode, an optional dielectric layer, an elastomer layer, and a second transparent electrode. In some embodiments, the second transparent electrode comprises an electrically-conductive polymer, transparent electrically-conductive nanoparticles, or both. In such embodiments, the second transparent electrode is configured to compress the elastomer layer in response to an electric field between the first and second transparent electrodes, such that when the elastomeric optical device is in the second optical state the elastomer layer is compressed between the first and second transparent electrodes.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: September 15, 2020
    Assignee: CARDINAL CG COMPANY
    Inventors: James Clark Switzer, III, Keith James Burrows
  • Patent number: 10724902
    Abstract: A Fabry-Perot interference filter includes a substrate that has a first surface, a first laminate that has a first mirror portion disposed on the first surface, a second laminate that has a second mirror portion facing the first mirror portion via a gap on a side opposite to the substrate with respect to the first mirror portion, and an intermediate layer that defines the gap between the first laminate and the second laminate. An outer surface of the intermediate layer is curved such that an edge portion of the intermediate layer on the substrate side is positioned on an outer side of an edge portion of the intermediate layer on the side opposite to the substrate in a direction parallel to the first surface. The second laminate covers the outer surface of the intermediate layer.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: July 28, 2020
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Takashi Kasahara, Katsumi Shibayama, Masaki Hirose, Toshimitsu Kawai, Hiroki Oyama, Yumi Kuramoto
  • Patent number: 10712525
    Abstract: A method and apparatus for packaging a MEMS device is disclosed that includes a MEMS die mounting surface, a MEMS device disposed on the mounting surface, and a fluid contained within the package and surrounding at least a portion of the MEMS device. The fluid may be selected to provide certain advantageous features. For example, the fluid may have a selected index of refraction that is matched with a lens index of refraction of the lens, have a viscosity selected to provide a predetermined mechanical damping to the MEMS device, be thermally coupled with the MEMS device and configured to remove heat from the MEMS device. The fluid may also be configured in mechanical cooperation with a spring mounted scanning element, a linear translation actuator, a rotational actuator, a lens, etc. to actuate or apply fluidic pressure to such elements.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: July 14, 2020
    Inventors: Albert Ting, Daniel T. McCormick, Michael Rattner
  • Patent number: 10696219
    Abstract: An interior lighting system for a vehicle, including two optical modules, each optical module including a plurality of selectively activatable light sources, a primary optical element including primary members, each arranged to face one of the light sources respectively, for collecting the rays emitted by the corresponding source, the primary optical element being configured to form an elementary beam which is dependent on the rays emitted, and a secondary optical element for projecting the elementary beam into an area of the passenger compartment. According to the invention, the optical modules are configured so that the two projected elementary beams are at least partially superimposed on one another in the area of the passenger compartment.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: June 30, 2020
    Assignee: VALEO VISION
    Inventors: Thierry Fleurence, Kaoutar Ez-Zouaq, Nicolas Boiroux, Nirina Rasoldier, Jingjing Xue, Arnaud Robert
  • Patent number: 10690859
    Abstract: A 3D free space mirrored optical cross connect switch has mirror arrays angled at twice the central incident angle. Path length variation and insertion loss variation are minimized between different switch ports. For each port, the incident angle may be selected to maximize the useful range of the mirror actuator.
    Type: Grant
    Filed: July 22, 2018
    Date of Patent: June 23, 2020
    Inventor: Sam A Marshall
  • Patent number: 10690946
    Abstract: Flexible photonic crystal structures capable of changing color in response to strain are described. Methods for forming two-dimensional and three-dimensional flexible photonic crystal structures are described. In some aspects, the flexible photonic crystal structures include an array of holes or voids formed within a flexible material. The flexible material changes dimensions of the array when the flexible photonic crystal structures is stretched, pulled, pushed or bent. In some aspects, the flexible photonic crystal structures include an array of features made of a first material, such as a first type of polymer, embedded within a matrix material made of a second material, such as a second type of polymer. The flexible photonic crystal structures can be used in the manufacture of consumer products, such as electronic products, electronic product accessories, thin films, flexible displays and wearable products.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: June 23, 2020
    Assignee: APPLE INC.
    Inventor: James R. Wilson
  • Patent number: 10679573
    Abstract: The present disclosure discloses a pixel structure, including a reflective layer, a reflective electrode, a flexible electrode and a bottom electrode sequentially disposed along a direction of incident light. An optical resonant cavity is formed between the reflective layer and the reflective electrode, the reflective layer and the flexible electrode are connected to each other; and a first voltage is loaded between the reflective electrode and the flexible electrode, and a second voltage is loaded between the flexible electrode and the bottom electrode; depending on at least one of changes of the first voltage and the second voltage, the flexible electrode deforms along the direction of incident light, and drives the reflective layer to move along the direction of incident light. The present disclosure also discloses a display substrate and a control method thereof and a display device.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: June 9, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Lianjie Qu, Zhidong Wang, Hebin Zhao, Yun Qiu, Weiwei Tong, Ning Jia