Patents Examined by Kimberly N. Kakalec
  • Patent number: 11947209
    Abstract: A light-absorbing, neutral density filter for an electronic device display. More specifically, a light-absorbing, neutral density filter applied as a shield, protective film, or protective coating layer for an electronic device display that blocks ultraviolet light, high energy visible light, and at least a portion of blue light. The neutral density filter comprises a polymer substrate and an absorbing agent.
    Type: Grant
    Filed: November 6, 2020
    Date of Patent: April 2, 2024
    Assignee: Eyesafe Inc.
    Inventors: Justin Barrett, Steven D. Moe, Bonnie G. Simmons, Justin Tolle
  • Patent number: 11946723
    Abstract: Disclosed is an optical scope including an objective lens, an eyepiece lens, and a reticle, wherein a field lens having negative power is disposed in at least one of a front and a back of the reticle disposed on an image formation surface of the objective lens to increase eye-relief.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: April 2, 2024
    Inventor: In Jung
  • Patent number: 11940594
    Abstract: Textured cover assemblies for electronic devices are disclosed. The textured cover assemblies may be placed over a display and may provide anti-glare and anti-reflection properties to the electronic device.
    Type: Grant
    Filed: June 22, 2022
    Date of Patent: March 26, 2024
    Assignee: APPLE INC.
    Inventors: Mingxia Gu, Janos C. Keresztes, Jun Qi, Jungwook Park, Victor H. Yin, Yanming Li
  • Patent number: 11927759
    Abstract: An exit pupil expander (EPE) has entrance and exit pupils, a back surface adjacent to the entrance pupil, and an opposed front surface. In one embodiment the EPE is geometrically configured such that light defining a center wavelength that enters at the entrance pupil perpendicular to the back surface experiences angularly varying total internal reflection between the front and back surfaces such that the light exiting the optical channel perpendicular to the exit pupil is at a wavelength shifted from the center wavelength. In another embodiment a first distance at the entrance pupil between the front and back surfaces is different from a second distance at the exit pupil between the front and back surfaces. The EPE may be deployed in a head-wearable imaging device (e.g., virtual or augmented reality) where the entrance pupil in-couples light from a micro display and the exit pupil out-couples light from the EPE.
    Type: Grant
    Filed: December 22, 2022
    Date of Patent: March 12, 2024
    Inventor: Jyrki Sakari Kimmel
  • Patent number: 11927741
    Abstract: A micromirror which comprises a mirror pivotally attached to a mount by a first pivoting structure that permits pivotal movement of the mirror relative to the mount about a first axis; a first comb drive which has a first position fixed relative to the mirror and second portion fixed relative to the mount. The first comb drive being for actuating the mirror about the first axis. A weight connected to the mirror, and the weight and mirror being on opposite sides of a fulcrum of the first pivoting structure. The first axis is non-parallel to a longitudinal axis extending through the weight and the mirror.
    Type: Grant
    Filed: December 22, 2022
    Date of Patent: March 12, 2024
    Assignee: Preciseley Microtechnology Corp.
    Inventor: Tiansheng Zhou
  • Patent number: 11906752
    Abstract: In various embodiments, laser delivery systems feature one or more optical elements for receiving a radiation beam and altering the spatial power distribution thereof, a lens manipulation system for changing a position of at least one optical element within the path of the radiation beam, and a controller for controlling the lens manipulation system to achieve a target altered spatial power distribution on a workpiece.
    Type: Grant
    Filed: March 1, 2022
    Date of Patent: February 20, 2024
    Assignee: Panasonic Connect North America, Division of Panasonic Corporation of North America
    Inventors: Wang-Long Zhou, Parviz Tayebati, Bien Chann, Francisco Villarreal-Saucedo
  • Patent number: 11906700
    Abstract: A substrate is provided with an abrasion resistance antireflection coating. The coated substrate includes a multilayer antireflection coating on at least one side. The coating has layers with different refractive indices, wherein higher refractive index layers alternate with lower refractive index layers. The layers having a lower refractive index are formed of silicon oxide with a proportion of aluminum, with a ratio of the amounts of aluminum to silicon is greater than 0.05, preferably greater than 0.08, but with the amount of silicon predominant relative to the amount of aluminum. The layers having a higher refractive index include a silicide, an oxide, or a nitride.
    Type: Grant
    Filed: May 18, 2021
    Date of Patent: February 20, 2024
    Assignee: SCHOTT AG
    Inventors: Christian Henn, Thorsten Damm
  • Patent number: 11906765
    Abstract: A thin-film interference filter has a thin-film interference multi-layer stack composed of individual thin-film layers arranged in groups to form a plurality of repeat unit blocks. The thin-film interference filter is flexible enough to be bendable to a radius of curvature of 250 mm or even less without permanently damaging the thin-film interference filter. The thin-film interference filter may have a second thin-film interference multi-layer stack composed of individual thin-film layers arranged in repeat unit blocks may have a different optical transmission spectrum. At least one interlayer between the first thin-film interference multi-layer stack and the second thin-film interference multi-layer stack may block a range of wavelengths of infrared, visible, or ultraviolet light. A defect layer of a different optical thickness than neighboring thin-film layers forming the repeat unit blocks, thereby creating a Fabry Perot resonance cavity.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: February 20, 2024
    Inventor: Esmaeil Banaei
  • Patent number: 11899230
    Abstract: An example optical filter may include an angle blocking layer having a first angular light blocking range ?AL relative to a normal axis, and an interference filter adjacent the angle blocking layer having a second angular light blocking range ?IF relative to the normal axis. ?IF and ?AL at least partially overlap. The example optical filter has a predetermined light transmission zone comprising angles from 0° to a maximum light transmission angle ?Tmax relative to a normal axis of the major surface. The example optical filter has a predetermined angular light blocking zone ?B, a union of ?IF and ?AL. An example optical filter may include an interference filter having an incidence angle-dependent reflection band and an absorbing layer having an absorption band. The incidence angle-dependent reflection band and the absorption band may overlap at at least one wavelength at at least one angle of incidence.
    Type: Grant
    Filed: May 17, 2022
    Date of Patent: February 13, 2024
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: John A. Wheatley, Guanglei Du, Gilles J. Benoit, Rolf W. Biernath
  • Patent number: 11892660
    Abstract: A reflecting element includes a first reflecting film to reflect light and a second reflecting film configured to increase a reflectivity of the first reflecting film. The second reflecting film includes a layer of high-refractive-index material and a layer of low-refractive-index material with a refractive index lower than the layer of high-refractive-index material. The layer of low-refractive-index material is a top layer of the second reflecting film.
    Type: Grant
    Filed: March 1, 2021
    Date of Patent: February 6, 2024
    Assignee: RICOH COMPANY, LTD.
    Inventor: Kazutaka Niigata
  • Patent number: 11885964
    Abstract: Disclosed is an electronic device. An electronic device according to the present disclosure may include: an optical system generating light for implementing an image; and a display emitting the light provided from the optical system to an exit location set according to an incident location and an incident angle, in which the optical receiver may include a light source, and a reflector has a shape bent at a different angle with respect to the display while reflecting the light generated by the light source to the display. The electronic device according to the present disclosure may be associated with an artificial intelligence module, a robot, an augmented reality (AR) device, a virtual reality (VR) device, a device related to a 5G service, and the like.
    Type: Grant
    Filed: August 31, 2019
    Date of Patent: January 30, 2024
    Assignee: LG ELECTRONICS INC.
    Inventors: Seungyong Shin, Vladimir Kuzmin, Alexey Borodulin, Changkyu Hwang
  • Patent number: 11882265
    Abstract: A general purpose image and visual effects display apparatus, with associated methods, which is comprised of an array of independently angled reflective or refractive elements wherein the varying angle pattern of each element across said array is designed to reflect or refract specifically designed as well as fortuitously located existing colors, in precisely determined patterns, to make apparent to specific viewing or receiving locations a wide range of complex emergent visual and other effects. In some embodiments very high resolution and high color fidelity image display is possible. In other embodiments moving images akin to video can be displayed, using no electronics or moving parts. In other embodiments true binocular 3D images can be displayed directly to viewers, without the need for special 3D viewing glasses. Many of the embodiments and methods are applicable to non-visible light and other reflectable wave-based phenomena.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: January 23, 2024
    Inventor: James Yett
  • Patent number: 11874460
    Abstract: There is disclosed herein a display device comprising a picture generating unit, a waveguide pupil expander and a viewer-tracking system. The picture generating unit comprises a first display channel, a second display channel and a controller. The first display channel is arranged to output first spatially-modulated light of a first colour. The first spatially-modulated light corresponds to a first picture. The second display channel is arranged to output second spatially-modulated light of a second colour. The second spatially-modulated light corresponding to a second picture. The controller is arranged to drive the first display channel and second display channel. The waveguide pupil expander comprises a pair of parallel reflective surfaces. The waveguide pupil expander defines an input port and a viewing window. The input port is arranged to receive the first spatially-modulated light and the second spatially-modulated light.
    Type: Grant
    Filed: January 26, 2023
    Date of Patent: January 16, 2024
    Assignee: Envisics Lid
    Inventor: Jamieson Christmas
  • Patent number: 11846787
    Abstract: A diffractive waveguide element for a personal display device includes a display waveguide extending in a waveguide plane, an in-coupling diffractive optical element arranged onto or into the display waveguide for diffractively coupling light rays into the display waveguide, and an out-coupling diffractive optical element arranged onto or into the display waveguide for coupling the diffractively coupled light rays out of the display waveguide. In addition, there is provided a ray multiplier element optically upstream of the out-coupling diffractive optical element, the ray multiplier element being capable of splitting a light ray incoming to the in-coupling grating into a plurality of parallel rays spatially displaced in the waveguide plane before they enter the out-coupling diffractive optical element. A waveguide display device is also provided.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: December 19, 2023
    Assignee: DISPELIX OY
    Inventors: Kasimir Blomstedt, Juuso Olkkonen, Antti Sunnari
  • Patent number: 11815677
    Abstract: Image projection apparatus includes an image generating assembly, which is configured to project a sequence of line images extending in a first direction. A scanning mirror is positioned to receive and to reflect the line images while rotating about a mirror axis parallel to the first direction. A pupil expander has an edge positioned to receive the line images reflected by the scanning mirror and a face extending in a second direction non-parallel to the first direction and to the edge, and which is configured to direct simultaneously through the face multiple, parallel replicas of the expanded line images arrayed along the second direction.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: November 14, 2023
    Assignee: APPLE INC.
    Inventors: Arman Hajati, Alexander Shpunt, Robert S. Upton, Yuval Gerson
  • Patent number: 11796795
    Abstract: The invention provides a method for designing a diffractive optical element, characterized in comprising: S101: obtaining a first optical field pattern on a target plane; S102: converting the first optical field pattern on the target plane into a second optical field pattern on a spherical surface; S103: compensating for missing points of the second optical field pattern on the spherical surface, and matching grayscale values, so as to obtain a corrected third optical field pattern; and S104: obtaining a phase distribution of the diffractive optical element according to the third optical field pattern. By means of the design method, the projection quality of a diffractive optical element is improved.
    Type: Grant
    Filed: June 8, 2021
    Date of Patent: October 24, 2023
    Assignee: JIAXING UPHOTON OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Hui Feng, Hui Zhao
  • Patent number: 11789252
    Abstract: Provided herein are various improvements to optical-inertial stabilization systems, such as those employed on electro-optical systems that receive or emit optical energy. In one example, a system includes an optical reference element rigidly coupled to a primary mirror. The optical reference element propagates a reference signal through optic elements that form at least a portion of an optical path corresponding to the primary mirror. A measurement of the reference signal is made after propagation through the optic elements to determine errors associated with the optical path. The system can also include inertial sensors rigidly coupled to the primary mirror and optical reference element to form an assembly. The inertial sensors are configured to measure inertial rotation of the assembly. Rotational adjustments about two axes can be produced for the assembly based at least on the inertial rotation properties to correct for disturbance or drift.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: October 17, 2023
    Assignee: Lockheed Martin Corporation
    Inventors: Timothy Roland Hilby, Jesse William Fisher, Luke L. Wieczorek, Michael L. Tartaglia
  • Patent number: 11789265
    Abstract: A waveguide image combiner is used to transmit a monochrome or full-color image in an augmented reality display. The combiner uses multiple stacked waveguides, each having top and bottom substrates. The combiner also uses multiple pairs of incoupling and outcoupling VHOEs, which are sandwiched between the top and bottom substrates, to expand a first FOV and an image expander to expand the second or perpendicular FOV. This suitably provides an expanded FOV that offers a diagonal FOV?50°, a horizontal FOV?40 and a vertical FOV?25°. The combiner also delivers a large horizontal eye box up to 20 mm and a vertical eye box of 10 mm while maintaining high light efficiency of the real scene (e.g. >80%). The system is able to use a light engine based on broadband (10 nm????40 nm) LEDs and maintain a large horizontal field of view and high transmission of the real imagery.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: October 17, 2023
    Assignee: A9.com, Inc.
    Inventor: Arkady Bablumyan
  • Patent number: 11789189
    Abstract: Architectures are provided for selectively incoupling one or more streams of light from a multiplexed light stream into a waveguide. The multiplexed light stream can have light with different characteristics (e.g., different wavelengths and/or different polarizations). The waveguide can comprise in-coupling elements that can selectively couple one or more streams of light from the multiplexed light stream into the waveguide while transmitting one or more other streams of light from the multiplexed light stream.
    Type: Grant
    Filed: March 12, 2021
    Date of Patent: October 17, 2023
    Assignee: Magic Leap, Inc.
    Inventors: Michael Anthony Klug, Brian T. Schowengerdt, Michael Nevin Miller, Vikramjit Singh, Christophe Peroz, Pierre St. Hilaire, Jie Sun
  • Patent number: 11782220
    Abstract: Described herein is a calibration system (25) for a wavelength selective switch (1). The switch (1) is adapted for dynamically switching optical beams (5, 7) along respective trajectories between input and output ports disposed in an array (3) using a reconfigurable Liquid crystal on silicon (LCOS) spatial light modulator device (17). The calibration system (25) includes a monitor (27) for projecting an optical monitor beam (29) through at least a portion of the switch (1) onto the LCOS (17) and detecting the monitor beam (29) reflected from the LCOS (17). In response, system (25) provides a calibration signal (33) to an active correction unit (35) for applying a correction to one or more of the trajectories while maintaining a constant switching state in the LCOS (17).
    Type: Grant
    Filed: May 5, 2020
    Date of Patent: October 10, 2023
    Assignee: II-VI DELAWARE, INC.
    Inventor: Steven James Frisken