For Ornamental Effect Or Display Patents (Class 359/567)
  • Patent number: 10921607
    Abstract: A diffraction element can be employed in a surface display unit to provide diffraction peaks in a manner that reduces or eliminates a screen door effect that is prevalent in pixelated displays that does not have sufficient pixel density. The parameters of the diffraction element can be selected such that the diffraction peaks provide appearance of a larger pixel area than a corresponding physical pixel size. For example, first order diffraction peaks can be placed at a distance of about ? of a nearest subpixel-to-sub-pixel distance. The surface display unit can be employed for any image display application to enhance image quality. For example, a virtual reality headset to remove the screen door effect.
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: February 16, 2021
    Assignee: CORNING INCORPORATED
    Inventors: Jacques Gollier, James Andrew West
  • Patent number: 10908330
    Abstract: The display of the present invention includes an uneven-structure-forming layer having a surface provided with a plurality of concavities or a plurality of convexities respectively provided with flat bottoms and flat tops substantially parallel to the flat bottoms, and a light reflecting layer covering all or a part of an uneven surface of the uneven-structure-forming layer. The uneven-structure-forming layer is provided with two kinds of uneven-structure-forming regions. Each of the two kinds of uneven-structure-forming regions has a constant optical distance between the flat bottoms and the flat tops, but the optical distance is different between the two kinds of regions. The two kinds of uneven-structure-forming regions are alternately arrayed.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: February 2, 2021
    Assignee: TOPPAN PRINTING CO., LTD.
    Inventor: Kazuyoshi Ebina
  • Patent number: 10901220
    Abstract: A movable device includes a reflector; a movable section including the reflector; a first drive section connected to the movable section, the first drive section configured to drive the movable section; a first support connected to the first drive section to support the first drive section; and two adjusters disposed symmetrically with respect to the reflector.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: January 26, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Mizuki Shinkawa, Tsuyoshi Hashiguchi, Goichi Akanuma
  • Patent number: 10901229
    Abstract: A display system includes a waveguide having a first diffractive optical element and a second diffractive optical element. The waveguide is configured to receive a display light having a pupil height and pupil width and transmit the display light to an eyebox with an eyebox height and an eyebox width. The first diffractive optical element is configured to in-couple the display light into the waveguide, the first diffractive optical element having a first diffractive optical element height that is at least the pupil height and a first diffractive optical element width that is at least the eyebox width.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: January 26, 2021
    Assignee: Microsoft Technology Licensing, LLC
    Inventor: Joshua Owen Miller
  • Patent number: 10890773
    Abstract: Images perceived to be substantially full color or multi-colored may be formed using component color images that are distributed in unequal numbers across a plurality of depth planes. The distribution of component color images across the depth planes may vary based on color. In some embodiments, a display system includes a stack of waveguides that each output light of a particular color, with some colors having fewer numbers of associated waveguides than other colors. The stack of waveguides may include by multiple pluralities (e.g., first and second pluralities) of waveguides, each configured to produce an image by outputting light corresponding to a particular color. The total number of waveguides in the second plurality of waveguides is less than the total number of waveguides in the first plurality of waveguides, and may be more than the total number of waveguides in a third plurality of waveguides, in embodiments where three component colors are utilized.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: January 12, 2021
    Assignee: Magic Leap, Inc.
    Inventors: Brian T. Schowengerdt, Hong Hua, Hui-Chuan Cheng, Christophe Peroz
  • Patent number: 10866422
    Abstract: MicroLED arrays offer a small form factor solution for the HMD image sources since they do not need a separate illumination optics. Features of the present disclosure implement a MicroLED display system that incorporate a plurality of monochrome projectors (e.g., three MicroLED projectors) to generate three monochrome images (e.g., red, blue, and green images) that are separately input into a single waveguide of the HMD and combined to form an image that is displayed to the user. By utilizing a single waveguide that includes a plurality of spatially separated input regions (e.g., a region for inputting blue light, a region for inputting red light, a region for inputting green light), the MicroLED display system of the present disclosure may reduce the form factor of the HMD device because of the reduced number of plates that may be required to combine the three monochrome images.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: December 15, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Pietari Tuomisto, William Cummings, Dmitry Reshidko, Tuomas Vallius, David Douglas Bohn
  • Patent number: 10838459
    Abstract: A method for displaying a near-eye light field display (NELD) image is disclosed. The method comprises determining a pre-filtered image to be displayed, wherein the pre-filtered image corresponds to a target image. It further comprises displaying the pre-filtered image on a display. Subsequently, it comprises producing a near-eye light field after the pre-filtered image travels through a microlens array adjacent to the display, wherein the near-eye light field is operable to simulate a light field corresponding to the target image. Finally, it comprises altering the near-eye light field using at least one converging lens, wherein the altering allows a user to focus on the target image at an increased depth of field at an increased distance from an eye of the user and wherein the altering increases spatial resolution of said target image.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: November 17, 2020
    Assignee: NVIDIA CORPORATION
    Inventors: Douglas Lanman, David Luebke
  • Patent number: 10795165
    Abstract: An optical system for a colour head up display, the optical system being for guiding image light from an image projection system to an exit pupil. First and second waveguides are utilised, each waveguide guiding a predetermined set of wavelengths.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: October 6, 2020
    Assignee: BAE SYSTEMS plc
    Inventors: Michael David Simmonds, Rory Thomas Alexander Mills
  • Patent number: 10768428
    Abstract: A screen (3) for an HMD (1) is provided, and may be designed as a display screen or as a projection screen. The screen (3) comprises a layer (19) of a material with a switchable degree of transparency and at least one further switchable layer (17, 21, 23) which, in dependence on the switching state, can assume at least two physical states, the physical states differently influencing at least one optical property of light passing through the switchable layer or reflected by it.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: September 8, 2020
    Assignee: CARL ZEISS MEDITEC AG
    Inventors: Stefan Saur, Marco Wilzbach, Christopher Käsbach
  • Patent number: 10698214
    Abstract: An optical waveguide including an input-coupler, a first intermediate-component, a second intermediate-component and an output-coupler is described herein. The input-coupler couples, into the waveguide, light corresponding to an image associated with an input-pupil and directs the light toward the first intermediate-component. The first intermediate-component performs horizontal or vertical pupil expansion and redirects the light corresponding to the image toward the output-coupler. The second intermediate-component is a diffractive component located between the first-intermediate component and the output-coupler and performs pupil redistribution on a portion of the light corresponding to the image before the portion reaches the output-coupler. The output-coupler performs the other one of horizontal or vertical pupil expansion and couples, out of the waveguide, the light corresponding to the image. Related methods and systems are also described.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: June 30, 2020
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Tuomas Vallius, Jani Tervo
  • Patent number: 10634925
    Abstract: A display system is disclosed for use in an augmented reality display (30), the system comprises a waveguide (32) having a front surface and a rear surface. A front input projector (34) projects polychromatic light through a front surface, and a back input projector (36) projects polychromatic light through the rear surface. Input light impinges on an input grating (38) on a rear surface of the waveguide (32), and light travels through the waveguide by total internal reflection. An output grating (40) is provided for coupling light out of the waveguide. A plurality of front and back input projectors (34, 36) are provided in a staggered configuration along the width of the waveguide (32) and respective edges of adjacent front and back input projectors are aligned along the width of the waveguide to permit a continuous projection of light.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: April 28, 2020
    Assignee: Wave Optics Ltd.
    Inventors: David Grey, Sumanta Talukdar
  • Patent number: 10585284
    Abstract: Systems and methods to provide an interactive environment are presented herein. The system may include one or more of a device configured to be installed on a user's head, an image-forming component, one or more physical computer processors, and/or other components. The image-forming component may be configured to generate light rays to form images. The light rays may be reflected off an optical element towards a user's eye. The light rays may be transmitted back through a portion of the image-forming component before reaching the eye.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: March 10, 2020
    Assignee: Meta View, Inc.
    Inventor: Barmak Heshmat
  • Patent number: 10560688
    Abstract: A non-telecentric display system that prevents ghost images includes an optical waveguide and a display engine. An image former of the display engine includes a reflective surface having a surface normal thereto. An illumination engine of the display engine emits light towards the reflective surface of the image former such that chief rays are offset by acute angles from the surface normal to the reflective surface. The display engine directs light corresponding to an image, that reflects off the reflective surface of the image former, towards an input-coupler of the optical waveguide so light corresponding to the image is coupled therein and travels by total internal reflection to an output-coupler of the waveguide. Ghost images are prevented at least in part due to the chief rays of light emitted by the illumination engine being offset by acute angles from the surface normal to the reflective surface.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: February 11, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventor: Steven John Robbins
  • Patent number: 10534111
    Abstract: A cover window covering a display panel of a display device comprises a base member covering a display area and a non-display area of the display panel, and an inorganic layer disposed on the base member. The inorganic layer has substantially uniform thickness on the display area, and has a diffraction grating structure on the non-display area.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: January 14, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventor: Soo-Won Kim
  • Patent number: 10511832
    Abstract: A method for calibrating includes obtaining a head-mounted display device that includes an electronic display having an array of display elements and an array of beam steerers located over an inner left portion and an inner right portion of the electronic display. The method also includes obtaining alignment information by selecting a first respective subset of the array of display elements and causing it to emit light, and determining whether the light is received by a first optical sensor in a first position or a second optical sensor in a second position, thereby determining whether the first respective subset of the array of display elements is aligned for the first or the second optical sensor. The method also includes repeating the selecting, causing, and determining operations for a second subset of the array of display elements, and storing the alignment information for calibrating images for presentation by the electronic display.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: December 17, 2019
    Assignee: Facebook Technologies, LLC
    Inventors: Shizhe Shen, Daozhi Wang, Kurt Jenkins
  • Patent number: 10473831
    Abstract: A display includes light-scattering regions. Each of the light-scattering regions is provided with linear protrusions and/or recesses having the same longitudinal direction. The light-scattering regions are different from each other in the longitudinal direction.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: November 12, 2019
    Assignee: TOPPAN PRINTING CO., LTD.
    Inventor: Toshiki Toda
  • Patent number: 10359556
    Abstract: A backlight module includes: a light guide plate; a light source for emitting light rays towards a first region of the light guide plate; a first grating provided at the first region and configured to adjust propagation directions of the light rays such that the adjusted light rays travel towards a second region of the light guide plate, and the propagation directions make an included angle with a normal to the light guide plate which is greater than the critical angle of total reflection of the light guide plate; and a second grating provided at the second region and configured to collimate the adjusted light rays such that the collimated light rays travel in a direction perpendicular to the light guide plate.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: July 23, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiandong Meng, Wei Wang, Xiaochuan Chen, Jian Gao, Jifeng Tan, Xianqin Meng
  • Patent number: 10295829
    Abstract: An optical element includes a plurality of partially reflecting mirrors provided in parallel to each other with an interval therebetween, and a transmittance member interposed between adjacent two partially reflecting mirrors of the plurality of partially reflecting mirrors. The transmittance member has an incidence surface on which an image light and an external light are incident through a light guiding body, and an exit surface from which the image light and the external light are exited to an observer side. Each of the plurality of partially reflecting mirrors is disposed so as to be inclined with respect to the incidence surface and the exit surface, and a reflectance of light incident at a relatively small incidence angle with respect to surfaces of each partially reflecting mirror is lower than a reflectance of light incident at a relatively large incidence angle.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: May 21, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Shohei Yoshida, Hayato Matsuki
  • Patent number: 10241346
    Abstract: Disclosed are an apparatus and method for providing additional degrees of freedom for diffraction gratings of an output waveguide in a near-eye display device. The near-eye display device includes an imager to generate an image based on light from a light source. The device further includes a waveguide to input a light wave representing the image received from the imager and to output the light wave representing the image toward an optical receptor of a user. The waveguide includes a plurality of diffractive optical elements (DOEs) in a common light path from an input of the waveguide to an output of the waveguide. The DOEs include a plurality of periodic diffraction patterns. Each of the periodic diffraction patterns is represented by a diffraction pattern vector. The periodic diffraction patterns are determined such that a vector summation of the diffraction pattern vectors equals zero.
    Type: Grant
    Filed: May 7, 2016
    Date of Patent: March 26, 2019
    Assignee: Microsoft Technology Licensing, LLC
    Inventor: Jani Kari Tapio Tervo
  • Patent number: 10111463
    Abstract: A combustible heat source for a smoking article and a method of manufacturing a combustible heat source are provided. The combustible heat source includes a barrier affixed to an end face of the combustible heat source, wherein a thermally-activated adhesive is provided between the end face and the barrier. The method includes providing a thermally-activatable adhesive between the end face of the combustible heat source and the barrier; affixing the barrier to the end face; and heating the combustible heat source with the barrier affixed to the end face thereof to activate the thermally-activatable adhesive.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: October 30, 2018
    Assignee: Philip Morris Products S.A.
    Inventor: Rui Nuno Batista
  • Patent number: 9983335
    Abstract: The invention concerns a film element having a replication layer (43), wherein an optically active surface structure (27) is shaped in a first surface of the replication layer. The surface structure is formed in at least a first region of the film element (35) by a first diffractive surface relief (46) comprising a plurality of successive elements following a first envelope curve (47), wherein the elements respectively comprise an element surface (48) arranged substantially parallel to a base surface and at least one flank adjoining the adjacent element surface or surfaces, the element surfaces (48) of adjacent elements are spaced in a direction perpendicular to the base plane, with a first optical spacing or a plurality of the first optical spacing, wherein the first optical spacing is between 150 nm and 800 nm, preferably between 150 nm and 400 nm.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: May 29, 2018
    Assignee: OVD KINEGRAM AG
    Inventors: Wayne Robert Tompkin, Andreas Schilling
  • Patent number: 9971150
    Abstract: A near-eye optical display system utilizes a compact display engine that couples image light from an imager to a waveguide-based display having diffractive optical elements (DOEs) that provide exit pupil expansion in two directions. The display engine comprises a pair of single axis MEMS (Micro Electro Mechanical System) scanners that are configured to reflect the image light through horizontal and vertical scan axes of the display system's field of view (FOV) using raster scanning. The MEMS scanners are arranged with their axes of rotation at substantially right angles to each other and operate with respective quarter wave retarder plates and a polarizing beam splitter (PBS) to couple the image light into an in-coupling DOE in the waveguide display without the need for additional optical elements such as lenses or relay systems.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: May 15, 2018
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventor: Steven John Robbins
  • Patent number: 9958684
    Abstract: A near-eye optical display system utilizes a compact display engine that couples image light from an imager to a waveguide-based display having diffractive optical elements (DOEs) that provide exit pupil expansion in two directions. The display engine comprises a pair of single axis MEMS (Micro Electro Mechanical System) scanners that are configured to reflect the image light through horizontal and vertical scan axes of the display system's field of view (FOV) using raster scanning. The MEMS scanners are arranged with their axes of rotation at substantially right angles to each other and operate with respective quarter wave retarder plates and a polarizing beam splitter (PBS) to couple the image light into an in-coupling DOE in the waveguide display without the need for additional optical elements such as lenses or relay systems.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: May 1, 2018
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventor: Steven John Robbins
  • Patent number: 9897438
    Abstract: To make it possible to emit a light pattern with a uniform light quantity within a detection surface in spite of 0th-order diffracted light included therein or to emit a light pattern for overall irradiation with a uniform light quantity distribution, without limiting a degree of freedom for design of the emitted light pattern. In a diffraction optical element according to the invention, a divergence angle converting function that is a function of converting the divergence angle of incident light due to diffraction effect and a light beam splitting function that is a function of splitting an incident light beam into a plurality of light beams due to diffraction effect are combined so that incident light as divergent light is split into a plurality of diffracted lights with different divergence angles from the divergence angle of the incident light and the diffracted lights is emitted.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: February 20, 2018
    Assignee: ASAHI GLASS COMPANY, LIMITED
    Inventor: Koji Miyasaka
  • Patent number: 9776444
    Abstract: A security device including an array of lines printed or otherwise provided on a substrate, the lines including materials which have the same appearance under visible light illumination but which appear different from each other in the visible under a combination of visible and non-visible, ultraviolet illumination. At least some of the lines in the array appear different from other lines under the combination of visible and non-visible, ultraviolet illumination. A second, surface relief array of lines imposed on the first array, the orientation, line widths and spacings of the first and second arrays being such that the device exhibits a variable appearance as it is tilted while exposed to the combination of visible and non-visible illumination.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: October 3, 2017
    Assignee: DE LA RUE INTERNATIONAL LIMITED
    Inventor: Jan Adrian Robert Hatton
  • Patent number: 9740174
    Abstract: The invention relates to a method for fabrication of a one-piece, silicon-based component of simple shape offering the illusion of faceting and/or chamfering for forming all or part of the exterior part of a timepiece.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: August 22, 2017
    Assignee: Nivarox-FAR S.A.
    Inventors: Pierre Cusin, Alex Gandelhman, Michel Musy
  • Patent number: 9720147
    Abstract: A reflective diffraction grating and a fabrication method are provided. The reflective diffraction grating includes a substrate, a UV-absorbing layer, a grating layer having a binary surface-relief pattern formed therein, and a conforming reflective layer. Advantageously, the UV-absorbing layer absorbs light at a UV recording wavelength to minimize reflection thereof by the substrate during holographic patterning at the UV recording wavelength.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: August 1, 2017
    Assignee: Lumentum Operations LLC
    Inventors: John Michael Miller, Hery Djie, Patrick Lu, Xiaowei Guo, Qinghong Du, Eddie Chiu, Chester Murley
  • Patent number: 9632316
    Abstract: A display system comprises an optical waveguide, an actuator and a light engine. The light engine generates multiple input beams which form a virtual image. An incoupling grating of the optical waveguide couples each beam into an intermediate grating of the waveguide, in which that beam is guided onto multiple splitting regions. The intermediate grating splits that beam at the splitting regions to provide multiple substantially parallel versions of that beam. Those multiple versions are coupled into an exit grating of the waveguide, in which the multiple versions are guided onto multiple exit regions. The exit grating diffracts the multiple versions of that beam outwardly. The multiple input beams thus cause multiple exit beams to exit the waveguide which form a version of the virtual image. The actuator is coupled to the waveguide and is arranged to generate acoustic waves, which are incident on, and propagate through, the optical waveguide.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: April 25, 2017
    Assignee: Microsoft Technology Licensing, LLC
    Inventor: Tapani Levola
  • Patent number: 9387720
    Abstract: A display includes light-scattering regions. Each of the light-scattering regions is provided with linear protrusions and/or recesses having the same longitudinal direction. The light-scattering regions are different from each other in the longitudinal direction.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: July 12, 2016
    Assignee: TOPPAN PRINTING CO., LTD.
    Inventor: Toshiki Toda
  • Patent number: 9176328
    Abstract: Generic optical matrices may have pixels corresponding to color and sub-pixels corresponding to non-color effects. A generic optical matrix may include an array of pixels disposed on a substrate. The array may comprise first pixels corresponding to a first color and second pixels corresponding to a second color. The first and second pixels may be arranged in a motif such that individual ones of the first pixels are positioned adjacent to individual ones of the second pixels. Individual ones of the pixels may comprise sub-pixels. A given pixel may comprise a first and a second sub-pixel. The first sub-pixel may comprise an optical structure configured to reflect or transmit light meeting a first condition. The second sub-pixel may comprise an optical structure configured to reflect or transmit light meeting a second condition. The light reflected or transmitted by the sub-pixels may be the corresponding color of the given pixel.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: November 3, 2015
    Assignee: NANOGRAFIX CORPORATION
    Inventors: Daniel Lieberman, Or Lieberman, Rami Lieberman
  • Patent number: 9025247
    Abstract: An article comprising (i) a substantially flat substrate bearing a set of diffraction gratings, and (ii) a jewelry mounting secured to the substrate. The gratings occupy areas that correspond to a two-dimensional projection of a three-dimensional faceted gemstone. Sub-gratings are sized and positioned so that perceived sub-gratings images overlap. Sub-gratings within each set differs from adjacent sub-gratings with respect to grating wavevector magnitude, so that the overlapped perceived images result in an overall perceived color of sub-grating set. In one embodiment, two or more gratings comprise sub-grating sets having parallel wavevectors; each sub-grating set differs from at least one other with respect to grating wavevector direction. In another embodiment, one or more gratings comprise sub-grating sets having non-parallel wavevectors.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: May 5, 2015
    Assignee: Volonte Jewels LLC
    Inventors: Thomas W. Mossberg, Christoph M. Greiner, Dmitri Iazikov
  • Publication number: 20150101365
    Abstract: An identifiable mark on a portion of a polished facet of a surface of an article and being identifiable by an optical magnifying viewing device, said identifiable mark comprising a nano-structure formed by a two-dimensional or a three-dimensional lattice of a plurality of discrete nanometer sized recessed or protruded entities, wherein said entities are arranged within a predefined region of said polished facet in a predetermined arrangement in relation to each other and such that an outer interface surface between the facet of the article and air is formed and an inner interface surface between the facet of the article and air is formed. Said predetermined arrangement of said entities is non-uniform and non-periodic arrangement, and wherein said entities are sized and shaped so as to cause optical scattering upon reflection of incident light and the distance from the inner interface surface to the outer interface surface is greater than the amplitude of the non-marked portion of said polished face.
    Type: Application
    Filed: May 23, 2014
    Publication date: April 16, 2015
    Inventors: Koon Chung HUI, Wing Chi TANG, Ho CHING
  • Publication number: 20150103404
    Abstract: The present invention is directed to wearable display technologies. More specifically, various embodiments of the present invention provide wearable augmented reality glasses incorporating projection display systems where one or more laser diodes are used as light source for illustrating images with optical delivery to the eye using transparent waveguides. In one set of embodiments, the present invention provides wearable augmented reality glasses incorporating projector systems that utilize transparent waveguides and blue and/or green laser fabricated using gallium nitride containing material. In another set of embodiments, the present invention provides wearable augmented reality glasses incorporating projection systems having digital lighting processing engines illuminated by blue and/or green laser devices with optical delivery to the eye using transparent waveguides.
    Type: Application
    Filed: August 1, 2014
    Publication date: April 16, 2015
    Inventors: Paul Rudy, James W. Raring, Eric Goutain, Hua Huang
  • Patent number: 8982465
    Abstract: A display includes light-scattering regions. Each of the light-scattering regions is provided with linear protrusions and/or recesses having the same longitudinal direction. The light-scattering regions are different from each other in the longitudinal direction.
    Type: Grant
    Filed: June 17, 2010
    Date of Patent: March 17, 2015
    Assignee: Toppan Printing Co., Ltd.
    Inventor: Toshiki Toda
  • Publication number: 20150062707
    Abstract: A head-mounted or helmet-mounted display apparatus is provided. The apparatus includes an optical element which in use is disposed in front of the eyes of a user. The optical element comprises a waveguide portion. The apparatus further includes a first light source and a second light source of image-bearing light. The apparatus further includes first diffraction element for propagation of image-bearing light of the first light source through the optical element. The apparatus further includes a second diffraction element for propagation of image-bearing light of the second light source through the optical element. The first light source and the second light source is disposed such that relative angular movement of the first light source and the second light source about an axis of symmetry of the optical element adjusts the inter-pupillary spacing of a first visible image and a second visible image presented to a respective eye of a user.
    Type: Application
    Filed: August 25, 2014
    Publication date: March 5, 2015
    Applicant: BAE SYSTEMS PLC
    Inventors: Michael David SIMMONDS, Mohmed Salim VALERA
  • Patent number: 8970955
    Abstract: The present invention discloses a method for manufacturing a zero-order diffractive filter comprising a high-index material having an upper surface and a lower surface. The high-index material is positioned between a first low-index matter and a second low-index matter; the lower surface is adjacent to said first low-index matter and the upper surface is adjacent to the second low-index matter. Moreover, the high-index material has an index of refraction that is higher than the index of refraction of both said first low-index matter and said second low-index matter. The method comprises at least the following procedure: selectively providing, by employing at least one wet-coating technique, at least one of the following at least partially: the high-index material onto said first low-index matter.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: March 3, 2015
    Assignee: CSEM Centre Suisse d'Electronique et de Microtechnique SA—Recherche et Developpement
    Inventors: Harald Walter, Alexander Stuck
  • Patent number: 8928978
    Abstract: The invention concerns a film element having a replication layer (43), wherein an optically active surface structure (27) is shaped in a first surface of the replication layer. The surface structure is formed in at least a first region of the film element (35) by a first diffractive surface relief (46) comprising a plurality of successive elements following a first envelope curve (47), wherein the elements respectively comprise an element surface (48) arranged substantially parallel to a base surface and at least one flank adjoining the adjacent element surface or surfaces, the element surfaces (48) of adjacent elements are spaced in a direction perpendicular to the base plane, with a first optical spacing or a plurality of the first optical spacing, wherein the first optical spacing is between 150 nm and 800 nm, preferably between 150 nm and 400 nm.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: January 6, 2015
    Assignee: OVD Kinegram AG
    Inventors: Wayne Robert Tompkin, Andreas Schilling
  • Publication number: 20140376091
    Abstract: An optionally transferable optical system with a reduced thickness is provided. The inventive optical system is basically made up of a synthetic image presentation system in which one or more arrangements of structured image icons are substantially in contact with, but not completely embedded within, one or more arrangements of focusing elements. The focusing element and image icon arrangements cooperate to form at least one synthetic image. By way of the subject invention, the requirement for an optical spacer to provide the necessary focal distance between the focusing elements and their associated image icon(s) is removed. As a result, overall system thicknesses are reduced, suitability as a surface-applied authentication system is enabled, and tamper resistance is improved.
    Type: Application
    Filed: August 17, 2012
    Publication date: December 25, 2014
    Applicant: VISUAL PHYSICS, LLC
    Inventors: Gregory R. Jordan, Samuel M. Cape, Scott K. Palm, Jonathan D. Gosnell, Caroline B. Kennedy
  • Patent number: 8903207
    Abstract: A Head Up Display can be utilized to find light from an energy source. The Head Up Display includes a first waveguide having a first input coupler and a first output coupler. The Head Up Display can also include a second waveguide having a second input coupler and a second output coupler. The first waveguide has a first major surface and the second waveguide has a second major surface, which are disposed approximately parallel to each other. The first waveguide and the second waveguide are positioned as a combiner and allowing viewing an outside feed and information from an image source. The first input coupler diffracts light in the first field of view into the first waveguide and light in a second field of view reaches the second input coupler and is diffracted into the second waveguide.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: December 2, 2014
    Assignee: Rockwell Collins, Inc.
    Inventors: Robert D. Brown, Kurt A. Stahl, Robert B. Wood
  • Publication number: 20140347609
    Abstract: A display apparatus is provided. The display apparatus comprises a liquid crystal display device, a first polarizer and a diffractive optical element. The first polarizer is disposed on a light emitting side of the liquid crystal display device. An azimuth angle of a polarizing direction of the first polarizer is 90 degrees. The diffractive optical element is disposed on the light emitting side of the liquid crystal display device and comprises at least a first diffraction grating. An azimuth angle of a grating direction of the first diffraction grating is 10±30 degrees or 85±25 degrees.
    Type: Application
    Filed: August 6, 2014
    Publication date: November 27, 2014
    Inventors: Wang-Yang Li, Ting-I Wu
  • Publication number: 20140340749
    Abstract: In a display apparatus, image light emitted from an image forming device is incident on an image light incidence portion of a light guide member after being diffracted by a second diffractive optical element, and emitted from an image light emission portion after moving forward in the light guide member. The image light emitted from the image light emission portion is diffracted by a first diffractive optical element and reaches the eyes of an observer. On a position where unnecessary external light is made incident on the light guide member, an external light noise reduction element which has a polarizing member and the like is provided. For this reason, even when the unnecessary external light is made incident on the light guide member, it is possible to inhibit the unnecessary external light from reaching the eye of the observer.
    Type: Application
    Filed: May 14, 2014
    Publication date: November 20, 2014
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Fumika YAMADA, Masatoshi YONEKUBO, Osamu YOKOYAMA
  • Patent number: 8885252
    Abstract: A first article has a surface bearing a diffraction grating that comprises a plurality of elevated regions and recessed regions and a reflective coating that provides reflective diffraction within the article but is sufficiently thick to prevent diffraction outside the article. Alternatively, the reflective coating can be arranged to also provide reflective diffraction outside the article. A second article has a surface bearing a diffraction grating that comprises a plurality of elevated regions and recessed regions. Either (i) at least a portion of each ridge, or (ii) at least portion of each trench, comprises a material differing with respect to its refractive index or with respect to its optical transmissivity.
    Type: Grant
    Filed: September 18, 2012
    Date of Patent: November 11, 2014
    Assignee: Volonte Jewels LLC
    Inventors: Thomas W. Mossberg, Christoph M. Greiner, Dmitri Iazikov
  • Publication number: 20140300967
    Abstract: A display system includes an optical component having a first and second surface, wherein the first surface comprises a diffractive optical element, and a projector system to create a projected image on the optical component. The projector includes an illumination source that emits electromagnetic radiation within a predetermined spectral band, an image generator that ascribes image characteristics to the radiation, and an optically-powered component that directs the radiation at the first surface of the optical component. The diffractive optical element reflects at least a portion of the radiation in a predetermined direction. The optical component has zero optical power for transmitted light. The optical component transmits at least a portion of the ambient scenery within a predetermined spectral band within a field-of-view of the projected image. The projected image maintains substantial boresight alignment with the ambient image.
    Type: Application
    Filed: November 7, 2012
    Publication date: October 9, 2014
    Applicant: ELBIT SYSTEMS OF AMERICA, LLC
    Inventors: Michael M. Tilleman, Jon R. Lyford
  • Publication number: 20140293424
    Abstract: In an information recording medium, in which an information recording medium has diffraction grating cells arranged therein, a plurality of types of the diffraction grating cells make up one information recording area. At least one type of the diffraction grating cells included in the diffraction grating cells making up the information recording area are information recording elements, while the other types of the diffraction grating cells included in the diffraction grating cells making up the information recording area are information hiding elements. The information is recorded by two-dimensional arrangement of the diffraction grating cells constituting the information recording elements in the information recording area.
    Type: Application
    Filed: June 17, 2014
    Publication date: October 2, 2014
    Applicant: TOPPAN PRINTING CO., LTD.
    Inventors: Toshiki Toda, Harumi Oota, Masami Inokuchi, Yasushi Kishimoto, Fang Chi Su
  • Publication number: 20140268067
    Abstract: A illumination device includes a light source, a diffractive optical element on which light emitted from the light source is made incident, and a superimposing optical system on which diffracted light emitted from the diffractive optical element is made incident. A direction of a principal ray in the center of the diffracted light coincides with an optical axis of the superimposing optical system. Consequently, it is possible to reduce an aberration due to the superimposing optical system and to emit illumination light having a more uniform illuminance distribution.
    Type: Application
    Filed: March 7, 2014
    Publication date: September 18, 2014
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Koichi AKIYAMA, Akihiro KASHIWAGI
  • Patent number: 8830584
    Abstract: The specification and drawings present a new apparatus and method for using exit pupil expanders (EPE) with spherical or aspheric non-flat substrates and a plurality of diffractive elements for expanding the exit pupil of a display for viewing in order to reduce image spreading. This can also enable improved image resolution and utilization of shorter focus distances.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: September 9, 2014
    Assignee: Nokia Corporation
    Inventors: Pasi Saarikko, Tapani Levola
  • Publication number: 20140240834
    Abstract: An optical waveguide is provided having at least first and second diffraction regions, the first diffraction region being arranged to diffract image-bearing light propagating along the waveguide so as to expand it in a first dimension and to turn the image-bearing light towards the second diffraction region, the second diffraction region being arranged to diffract the image-bearing light so as to expand it in a second dimension and to release it from the waveguide as a visible image. The first diffraction region is formed by first diffraction grating embedded within the waveguide, arranged to present a substantially similar profile to the image-bearing light when incident upon the grating from a given angle above or below the grating such that the polarisation of the image bearing light is rotated by substantially similar amounts, but in opposite directions, by successive interactions with the first diffraction region.
    Type: Application
    Filed: October 4, 2012
    Publication date: August 28, 2014
    Applicant: BAE SYSTEMS plc
    Inventor: Stephen Paul Mason
  • Publication number: 20140218801
    Abstract: The present invention provides a projection display (10) for projecting a colour image to a viewer (12) overlaid on a real world scene viewed through the display. The display comprises an image generator (16) for generating image bearing chromatic light for injection into a waveguide assembly (28) at a first range of field angles (44) and a second range of field angles (46). The waveguide assembly comprises a first waveguide (30) having a first input diffraction region (32) arranged to couple image bearing chromatic light in the first range of field angles into the first waveguide to propagate by total internal reflection; and a second waveguide (40) having a second input diffraction region (42) arranged to couple image bearing chromatic light in the second range of field angles into the second waveguide to propagate by total internal reflection.
    Type: Application
    Filed: August 13, 2012
    Publication date: August 7, 2014
    Applicant: BAE SYSTEMS plc
    Inventors: Michael David Simmonds, Mohmed Salim Valera
  • Publication number: 20140218779
    Abstract: An image display device includes an image forming device, collimating optical system, and optical device, with the optical device including a light guide plate, first diffraction grating member and second diffraction grating member which are made up of a volume hologram diffraction grating, and with central light emitted from the pixel of the center of the image forming device and passed through the center of the collimating optical system being input to the light guide plate from the near side of the second diffraction grating member with a certain angle. Thus, the image display device capable of preventing occurrence of color irregularities, despite the simple configuration, can be provided.
    Type: Application
    Filed: March 25, 2014
    Publication date: August 7, 2014
    Inventor: Hiroshi Mukawa
  • Publication number: 20140211146
    Abstract: An optical apparatus includes an optical combiner, an image lens, and an external scene lens. The optical combiner has an eye-ward side and an external scene side and includes a partially reflective diffraction grating that is at least partially reflective to image light incident through the eye-ward side and at least partially transmissive to external scene light incident through the external scene side. A first mount is positioned to hold the image lens in an optical path of the image light to apply a first corrective prescription to the image light. A second mount is positioned to hold an external scene lens over the external scene side of the optical combiner to apply a second corrective prescription to the external scene light. The optical combiner combines the image light with the scene light to form a combined image that is corrected according to the first and second corrective prescriptions.
    Type: Application
    Filed: January 31, 2013
    Publication date: July 31, 2014
    Applicant: Google Inc.
    Inventor: Google Inc.