Head Up Display Patents (Class 359/13)
  • Patent number: 10795070
    Abstract: Provided are a backlight unit and a holographic display apparatus including the same. The backlight unit includes a light guide plate; an input coupler configured to guide light into the light guide plate; a light deflector configured to deflect light emitted from the input coupler and guide the deflected light to propagate within the light guide plate. The light deflector is disposed on a region of the light guide plate which does not overlap with an optical path of light incident on the input coupler. The backlight unit also includes an output coupler configured to emit the light, having been propagated within the light guide plate, to an outside of the light guide plate.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: October 6, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yunhee Kim, Hoon Song, Joonyong Park, Geeyoung Sung, Hongseok Lee, Chilsung Choi
  • Patent number: 10783712
    Abstract: A near eye display (NED) system is configured to present an augmented reality environment to the user. In addition, the NED system uses an imaging device to detect individuals within a local area, and identify positions of hands of the individuals from which the NED system may be able to detect one or more performed gestures. In response to detecting a predetermined gesture, the NED system displays a user of the NED one or more virtual objects corresponding to the identified first gesture at a location associated with a predetermined portion of the individual's body. The displayed virtual objects may be referred to as “visual flair,” and are used to accentuate, stylize, or provide emphasis to gestures performed by individuals within the local area.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: September 22, 2020
    Assignee: Facebook Technologies, LLC
    Inventors: Albert Peter Hwang, Kenrick Cheng-Kuo Kin
  • Patent number: 10775620
    Abstract: A virtual-image forming device includes a device body having an opening; a real-image forming unit disposed within the device body to output light; a mirror to reflect the light output from the real-image forming unit; and an optical element. The optical element has positive power to refract the light reflected by the mirror and let the light exit through the opening to form of the light on a transmission and reflection member.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: September 15, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Takahiro Nakayama, Hibiki Tatsuno, Takashi Kubota, Naoki Nakamura
  • Patent number: 10748969
    Abstract: A display may have an array of pixels. Each pixel may have a light-emitting diode such as an organic light-emitting diode or may be formed from other pixel structures such as liquid crystal display pixel structures. The pixels may emit light such as red, green, and blue light. An angle-of-view adjustment layer may overlap the array of pixels. During operation, light from the pixels passes through the angle-of-view adjustment layer to a user. The viewing angle for the user is enhanced as the angular spread of the emitted light from the pixels is enhanced by the angle-of-view adjustment layer. The angle-of-view adjustment layer may be formed from holographic structures recorded by applying laser beams to a photosensitive layer or may be formed from a metasurface that is created by patterning nanostructures on the display using printing, photolithography, or other patterning techniques.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: August 18, 2020
    Assignee: Apple Inc.
    Inventors: Jean-Jacques P. Drolet, Jonathan S. Steckel
  • Patent number: 10712586
    Abstract: An optical device includes a light guide plate configured to guide light within a plane parallel to an emission surface, and a plurality of deflectors configured to deflect light guided thereto by the light guide plate, causing light forming an image in a space outside the light guide plate to exit from the emission surface. Each deflector in the plurality of deflectors cause the light to exit from the emission surface toward a direction substantially converging onto a single convergence point or convergence line in the space, or to substantially radiate from a single convergence point or convergence line in the space. The convergence point or the convergence line is mutually different among the plurality of deflectors with a grouping of a plurality of the convergence points or the convergence lines forming the image in the space.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: July 14, 2020
    Assignee: Omron Corporation
    Inventors: Yoshihiko Takagi, Norikazu Kitamura, Mitsuru Okuda
  • Patent number: 10712568
    Abstract: A projection apparatus for data eyeglasses. The projection apparatus encompasses at least one light source for emitting a light beam; and at least one holographic element, disposed or disposable on an eyeglass lens of the data eyeglasses, for projecting an image onto a retina of a user of the data eyeglasses by deflecting and/or focusing the light beam onto a eye lens of the user.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: July 14, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Reinhold Fiess, Tobias Werner
  • Patent number: 10705339
    Abstract: Aspects of the present invention relate to suppression of stray light in head worn computing.
    Type: Grant
    Filed: January 7, 2017
    Date of Patent: July 7, 2020
    Assignee: Mentor Acquisition One, LLC
    Inventor: John N. Border
  • Patent number: 10698203
    Abstract: A display system includes a light pipe including elongated surfaces. The light pipe is configured to expand the image in a first direction through one of the elongated surfaces. The display also includes a waveguide including an output grating, a first surface, a second surface, and a side surface. The first surface and the second surface have a larger area than the side surface, the output grating being configured to provide the image expanded in a second direction. The second direction is different than the first direction. The image enters the waveguide from the one of the elongated surfaces.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: June 30, 2020
    Assignee: Rockwell Collins, Inc.
    Inventors: Robert D. Brown, James H. Stanley, Eric P. Stratton, Ming Yu
  • Patent number: 10678049
    Abstract: A near-eye display system includes a display panel to display a lightfield image comprising an array of elemental images and a lenslet array facing the display panel, the lenslet array comprising lenslets with spatially-varying prescriptions, such as different diameters, different focal lengths, and different asphere terms. The lenslet array further may be formed with a planar or non-planar substrate. The system further may include a distortion map comprising a set of transform matrices, each transform matrix configured to pre-distort a corresponding elemental image of a lightfield image so as to compensate for distortion expected to be introduced by a corresponding lenslet of the lenslet array, as well as a rendering component configured to modify the array of elemental images of a rendered lightfield using the distortion map to generate a modified lightfield image, and provide the modified lightfield image for display at the display panel for viewing via the lenslet array.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: June 9, 2020
    Assignee: GOOGLE LLC
    Inventors: John D. Perreault, Patrick Llull
  • Patent number: 10677976
    Abstract: A mobile device is provided which is capable of displaying a hologram. The mobile device includes a main body including a screen; a light guide member disposed above the screen; an entrance optical member disposed on a surface of the light guide member; and an image hologram disposed on a surface of the light guide member and laterally spaced apart from the entrance optical member. When an area of the screen corresponding to the entrance optical member emits a light, a holographic image stored in the image hologram is displayed above the light guide member.
    Type: Grant
    Filed: September 16, 2014
    Date of Patent: June 9, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Farid Mukhtarov, Ki-hyung Kang
  • Patent number: 10678188
    Abstract: A method for generating video holograms in real time for a holographic playback device comprising at least one light modulator means, into which a scene divided into object points is encoded as an entire hologram and can be seen as a reconstruction from a visibility region, which is located within a periodicity interval of the reconstruction of the video hologram, the visibility region defining a subhologram together with each object point of the scene to be reconstructed, and the entire hologram being generated from a superposition of contributions of subholograms, is characterized in that for each object point the contributions of the subholograms in the entire reconstruction of the scene can be determined from at least one look-up table.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: June 9, 2020
    Assignee: SEEREAL TECHNOLOGIES S.A.
    Inventors: Enrico Zschau, Armin Schwerdtner, Bo Kroll, Alexander Schwerdtner
  • Patent number: 10670862
    Abstract: In an optical display system that includes a waveguide with multiple diffractive optical elements (DOEs), gratings in one or more of the DOEs may have an asymmetric profile in which gratings may be slanted or blazed. Asymmetric gratings in a DOE can provide increased display uniformity in the optical display system by reducing the “banding” resulting from optical interference that is manifested as dark stripes in the display. Banding may be more pronounced when polymeric materials are used in volume production of the DOEs to minimize system weight, but which have less optimal optical properties compared with other materials such as glass. The asymmetric gratings can further enable the optical system to be more tolerant to variations—such as variations in thickness, surface roughness, and grating geometry—that may not be readily controlled during manufacturing particularly since such variations are in the submicron range.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: June 2, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Tuomas Vallius, Lauri Sainiemi
  • Patent number: 10665144
    Abstract: A display device for a vehicle including: a first display configured to output first light forming first visual information; a second display configured to output second light forming second visual information; a light synthesizing unit located on an advancing path of each of the first light and the second light and forming a first acute angle with the first display and a second acute angle with the second display and configured to transmit therethrough the first light from the first display and reflect the second light from the second display; a first tiltable reflector; a second tiltable reflector; and a driving unit configured to: tilt the first tiltable reflector to form a first angle with the second display so the first tiltable reflector reflects part of the second light directed toward the light synthesizing unit toward a first direction, and tilt the second tiltable reflector to form a second angle with the first display so the second tiltable reflector reflects part of the first light directed toward
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: May 26, 2020
    Assignee: LG ELECTRONICS INC.
    Inventors: Inkoo Shim, Kyunglack Kim, Sangwon Kim, Kyoungjune Shin, Youshin Han
  • Patent number: 10656322
    Abstract: A coherent backlight unit and a 3D image display device including the coherent backlight unit are provided. The coherent backlight unit includes a light source, a light guide plate, a first diffraction grating, a second diffraction grating, and a reflective optical element. The light source irradiates a coherent light and the reflective optical element reflects the coherent light that is propagating toward one of the side surfaces from the inner side of the light guide plate toward the inner side of the light guide plate.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: May 19, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yunhee Kim, Hoon Song, Sunil Kim, Seokho Song
  • Patent number: 10636336
    Abstract: A method, computer readable medium, and system are disclosed for generating mixed-primary data for display. The method includes the steps of receiving a source image that includes a plurality of pixels, dividing the source image into a plurality of blocks, analyzing the source image based on an image decomposition algorithm, encoding chroma information and modulation information to generate a video signal, and transmitting the video signal to a mixed-primary display. The chroma information and modulation information correspond with two or more mixed-primary color components and are generated by the image decomposition algorithm to minimize error between a reproduced image and the source image. The two or more mixed-primary colors selected for each block of the source image are not limited to any particular set of colors and each mixed-primary color component may be selected from any color capable of being reproduced by the mixed-primary display.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: April 28, 2020
    Assignee: NVIDIA Corporation
    Inventors: Fu-Chung Huang, David Patrick Luebke, Jan Kautz, Dawid Stanislaw Pajak
  • Patent number: 10627975
    Abstract: A method, apparatus, and vehicle for controlling an on-vehicle display system are provided. The control method includes selecting, one of a display mode for information display and a non-display mode for light control in a vehicle, as a target operation mode. The control method also includes controlling the on-vehicle display system to display effective information when the target operation mode is the display mode. Further, the control method includes controlling the on-vehicle display system to control light in the vehicle when the target operation mode is the auxiliary mode.
    Type: Grant
    Filed: July 3, 2017
    Date of Patent: April 21, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xin Li, Guanshan Tong, Youmei Dong
  • Patent number: 10604066
    Abstract: A vehicle system includes a battery and a power indicator system. The power indicator system includes an external indicator visible on an outer surface of a vehicle that shows a battery condition. The system includes a sensor that detects the battery condition, and a processor that receives a first signal from the sensor indicative of the battery condition. The processor controls the external indicator in response to the first signal to visually display the battery condition.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: March 31, 2020
    Assignee: Thunder Power New Energy Vehicle Development Company Limited
    Inventor: Massimiliano Brusco
  • Patent number: 10564418
    Abstract: Disclosed herein are devices and methods to provide multiple eyeboxes from multiple input pupils. In particular, a projection system can direct light from multiple input pupils to a holographic optical element. The light of each of the input pupils having light beams of different wavelengths. The holographic optical element reflects at least part of the light of the multiple input pupils to form an array of exit pupils.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: February 18, 2020
    Assignee: North Inc.
    Inventors: Eric Tremblay, Mickael Guillaumee, David Ziegler, Christophe Moser, Lucio Kilcher
  • Patent number: 10553139
    Abstract: An optical system comprises a linear illumination source configured to emit light, a first scanning stage configured to receive the light and to scan the light, and a second scanning stage. The linear illumination source is configured to generate light forming a vertical field of view based on the one or more output signals received from a controller modulating the one or more output signals comprising image data defining content. The first scanning stage redirects portions of the light to generate an output defining a horizontal field of view based on the one or more output signals of the controller. The first scanning device combines the vertical field of view and the horizontal field of view in the output light to create a two-dimensional light image of the content. The second scanning stage receives and directs the output of the first scanning stage toward a projected exit pupil.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: February 4, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventor: David D. Bohn
  • Patent number: 10545342
    Abstract: An optical apparatus for a near-eye display includes a microdisplay to emit image light and one or more field lenses positioned to receive the image light from the microdisplay. The one or more field lenses have a combined optical power to form a curved intermediate image. A freeform combiner, having an eyeward side and an external side, is positioned to receive the image light from the one or more field lenses and reflect the image light. A curved intermediate image is formed between the freeform combiner and the one or more field lenses.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: January 28, 2020
    Assignee: GOOGLE LLC
    Inventor: Ozan Cakmakci
  • Patent number: 10534182
    Abstract: Systems, devices, and methods that integrate eye tracking capability into scanning laser projector (“SLP”)-based wearable heads-up displays are described. An infrared laser diode is added to an RGB SLP and an infrared photodetector is aligned to detect reflections of the infrared light from features of the eye. A holographic optical element (“HOE”) may be used to combine visible light, infrared light, and environmental light into the user's “field of view.” The HOE may be heterogeneous and multiplexed to apply positive optical power to the visible light and zero or negative optical power to the infrared light.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: January 14, 2020
    Assignee: North Inc.
    Inventors: Stefan Alexander, Jake Chapeskie, Lloyd Frederick Holland, Thomas Mahon
  • Patent number: 10534177
    Abstract: A near-eye-display is used for presenting media to a user. The near-eye-display includes a light source assembly, a scanning assembly, one or more output waveguides, and a controller. The light source assembly emits light that is at least partially coherent. The scanning assembly includes grating elements associated with a wave vector that diffract the emitted light into several beams, and scan the beams in accordance with display instructions. The output waveguide includes several input areas, and an output area. Each input area includes one or more coupling elements associated with respective wave vectors that receive a respective beam. The output waveguide expands the beam at least along two dimensions to form expanded light for each respective beam toward a different portion of an eyebox with an overlap in at least some portions of the eyebox. The controller controls the scanning of the scanning assembly to form a two-dimensional image.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: January 14, 2020
    Assignee: Facebook Technologies, LLC
    Inventors: Wanli Chi, Hee Yoon Lee
  • Patent number: 10509224
    Abstract: A head-up display system and method are provided that suppress double images from a combiner by eliminating or reducing a reflection of a refracted image from the back surface of the combiner. The combiner contains a tilted axis polarizing structure that attenuates transmittance and subsequent reflection of a refracted polarized projector image but maintains high transmittance for the forward external scene imagery.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: December 17, 2019
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Brent D. Larson, Kanghua Lu, Elias S. Haim
  • Patent number: 10488661
    Abstract: Systems, devices, and methods that integrate eye tracking capability into scanning laser projector (“SLP”)-based wearable heads-up displays are described. An infrared laser diode is added to an RGB SLP and an infrared photodetector is aligned to detect reflections of the infrared light from features of the eye. A holographic optical element (“HOE”) may be used to combine visible light, infrared light, and environmental light into the user's “field of view.” The HOE may be heterogeneous and multiplexed to apply positive optical power to the visible light and zero or negative optical power to the infrared light.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: November 26, 2019
    Assignee: North Inc.
    Inventors: Stefan Alexander, Jake Chapeskie, Lloyd Frederick Holland, Thomas Mahon
  • Patent number: 10473938
    Abstract: The present invention is a Substrate guided hologram that allows a wider range of optical devices based on SGHs with improved parameters such as larger NTE displays with a wider field of view, thinner substrates and more compact form factors. The Substrate-Guided Hologram of the subject invention includes a holographic lens which is positioned at an angle to and spaced from a holographic grating, with a mirror located at a diagonal to each of the lens and the grating.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: November 12, 2019
    Assignee: LUMINIT LLC
    Inventors: Fedor Dimov, Neven Rakuljic, Seth Coe-Sullivan
  • Patent number: 10466499
    Abstract: The present disclosure provides a display device including a display panel; a collimation unit located on a light emergent side of the display panel and configured to convert emergent light in the same position of the display panel into parallel light beams in the same direction; a light waveguide unit, which is located on one side of the collimation unit away from the display panel, includes a light incident surface and a light emergent surface opposite to the collimation unit, and is configured to cause the parallel light beams to be emergent from at least two positions of the light emergent surface; and an imaging unit opposite to the light emergent surface of the light waveguide unit and configured to converge the parallel light beams emergent from the at least two positions on the light emergent surface of the light waveguide unit into a real image point.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: November 5, 2019
    Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Lei Niu, Jialing Li
  • Patent number: 10457202
    Abstract: There is provided a vehicle cabin interior lighting device including: a light source that emits light; a polarizing member that converts the emitted light into p-polarized light; and a projection portion that is provided at an upper portion of an instrument panel, and onto which the p-polarized light is projected, and that reflects the projected p-polarized light without changing its polarization characteristics, and that causes the projected p-polarized light to be incident on a front windshield glass at Brewster's angle.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: October 29, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Ken Tanaka, Kenji Narumi
  • Patent number: 10451877
    Abstract: Configurations are disclosed for a health system to be used in various healthcare applications, e.g., for patient diagnostics, monitoring, and/or therapy. The health system may comprise a light generation module to transmit light or an image to a user, one or more sensors to detect a physiological parameter of the user's body, including their eyes, and processing circuitry to analyze an input received in response to the presented images to determine one or more health conditions or defects.
    Type: Grant
    Filed: September 19, 2016
    Date of Patent: October 22, 2019
    Assignee: Magic Leap, Inc.
    Inventors: Nicole Elizabeth Samec, John Graham Macnamara, Christopher M. Harrises, Brian T. Schowengerdt, Rony Abovitz, Mark Baerenrodt
  • Patent number: 10429655
    Abstract: Systems, devices, and methods that integrate eye tracking capability into scanning laser projector (“SLP”)-based wearable heads-up displays are described. At least one narrow waveband laser diode is used in an SLP to define one or more portion(s) of a visible image. At least one corresponding narrow waveband photodetector is aligned to detect reflections of the portion(s) of the image from features of the eye. A holographic optical element (“HOE”) may be used to combine the image and environmental light into the user's “field of view.” Three narrow waveband photodetectors each responsive to a respective one of three narrow wavebands output by the RGB laser diodes of an RGB SLP are aligned to detect reflections of a projected RGB image from features of the eye.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: October 1, 2019
    Assignee: North Inc.
    Inventors: Stefan Alexander, Jake Chapeskie, Lloyd Frederick Holland, Thomas Mahon
  • Patent number: 10429645
    Abstract: In an optical near eye display system, a monolithic three-dimensional optical microstructure is formed by a waveguide substrate with at least one DOE having grating regions that integrate the functions of in-coupling of incident light into the waveguide, exit pupil expansion in one or two directions, and out-coupling of light from the waveguide within a single optical element. An in-coupling region of the DOE couples the incident light into the waveguide and to a beam steering and out-coupling region. The beam steering and out-coupling region provides exit pupil expansion and couples light out of the waveguide. The beam steering and out-coupling region of the DOE can be configured with a two-dimensional (2D) grating that is periodic in two directions.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: October 1, 2019
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventor: Tuomas Vallius
  • Patent number: 10416456
    Abstract: Methods and systems for image display with a head-mounted device involve the use of a light-field display. Such a display is useful for providing augmented reality.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: September 17, 2019
    Assignee: Essilor International
    Inventors: Aude Bouchier, Jean-Paul Cano
  • Patent number: 10409070
    Abstract: A virtual image display apparatus includes an image projection apparatus that emits image light, and a display optical system that forms a virtual image according to the image light from a liquid crystal device (image forming device). The display optical system is configured by at least two members having different refractive indices and bends the image light a plurality of times between mediums having different refractive indices in a predetermined direction. A cumulative value of an index for chromatic dispersion with respect to the predetermined direction on a refractive surface of each bent portion is smaller than or equal to a predetermined reference value.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: September 10, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Akira Komatsu, Masayuki Takagi, Toshiaki Miyao, Takashi Takeda
  • Patent number: 10345077
    Abstract: A holographic sporting/combat optic may be mounted to weapon. To control the optical path at the holographic recording level, the holographic sporting/combat optic uses a single glass carrier with a holographic optical element for collimating mounted on one side and a second holographic optical element for projecting a reticle image mounted on an opposing side of the carrier. In some cases, the holographic optical elements may be implemented by emulsions disposed on opposing surfaces of the carrier. In this way, the holographic sporting/combat optic simplifies the manufacturing process while improving accuracy.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: July 9, 2019
    Assignee: HEL Technologies, LLC
    Inventors: Dean Loebig, Dennis Finnegan
  • Patent number: 10310261
    Abstract: An imaging device includes a projection optic arranged to form a virtual image of an object. The imaging device further includes a first diffuser positioned a first distance from the virtual projection optic and a second diffuser positioned a second distance from the virtual projection optic. The controller is arranged to control the first and second diffuser to make the real image visible on one of the diffusers.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: June 4, 2019
    Assignee: TWO TREES PHOTONICS LIMITED
    Inventors: Jamieson Christmas, Dackson Masiyano, William Crossland
  • Patent number: 10304245
    Abstract: A position of virtual reality glasses is detected using a detection device, a virtual observation position is predefined depending on the detected position of the virtual reality glasses, and a virtual bounding volume which surrounds the virtual observation position at least partially is predefined, a virtual object arranged in a virtual environment is displayed from the virtual observation position using the virtual reality glasses. As long as a part of the virtual object is immersed in the virtual bounding volume, this part is displayed as being at least partially transparent.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: May 28, 2019
    Assignee: AUDI AG
    Inventor: Marcus Kühne
  • Patent number: 10289071
    Abstract: A system and method of performing incoherent light treatment is disclosed. The method may include securing a recording medium to a securing structure within an internal cavity and delivering light at least partially toward a baffle disposed within the internal cavity. The method may also include securing one or more diffusers to one or more surfaces of the recording medium.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: May 14, 2019
    Assignee: Akonia Holographics, LLC
    Inventors: Friso Schlottau, Adam Urness, Mark R. Ayres, Suchit Madan, Thomas Riley Morris, Fredric R. Askham
  • Patent number: 10281726
    Abstract: A multi-chromatic optical waveguide for a near-eye display (NED) device includes reflective/refractive structures and periodic grating structures. Image incoupling and outcoupling can be done by reflective mirrors/facets, and image expansion can done by one or more even order expansion gratings. Wider field of view can be by achieved by splitting the field-of-view into multiple portions that propagate in different directions within the waveguide and then recombining those portions in the outcoupling region of the waveguide.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: May 7, 2019
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Tuomas Heikki Sakari Vallius, Pasi Petteri Pietilä
  • Patent number: 10254542
    Abstract: Examples are disclosed that relate to a near-eye display device including a holographic display system. The holographic display system includes a light source configured to emit light that is converging or diverging, a waveguide configured to be positioned in a field of view of a user's eye, and a digital dynamic hologram configured to receive the light, and project the light into the waveguide such that the light propagates through the waveguide.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: April 9, 2019
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Joel Steven Kollin, Andrew Maimone, Steven John Robbins, Eliezer Glik, Andreas Georgiou, Xinye Lou
  • Patent number: 10226170
    Abstract: A small-sized head-mount type vision testing device, which is mounted on a testee's head, including: a display device that presents a visual target to an eyeball of the testee; a display optical system that guides light of the visual target presented on the device to the retina; an imaging device that images the eyeball; and an observation optical system that guides an image of the eyeball to the imaging device, and further including a mirror that reflects light of a specific wavelength and transmits the other light at a point closer to the eyeball side than the display device, wherein an optical axis from a pupil to the mirror in the display optical system and an optical axis from the pupil to the mirror in the observation optical system, coincide with each other, and the optical axes are bent through the mirror.
    Type: Grant
    Filed: August 18, 2015
    Date of Patent: March 12, 2019
    Assignee: CREWT MEDICAL SYSTEMS, INC.
    Inventors: Satoshi Inoue, Kenzo Yamanaka, Shinji Kimura
  • Patent number: 10175488
    Abstract: Systems, devices, and methods for spatial multiplexing in holographic optical elements (“HOEs”) are described. A spatially-multiplexed HOE includes multiple spatially-separated holographic regions and each spatially-separated region applies a respective optical function to light that is incident thereon. An exemplary application as a spatially-multiplexed holographic combiner (“SMHC”) in a scanning laser-based wearable heads-up display (“WHUD”) is described. In this exemplary application, a scanning laser projector directs multiple light signals over the area of the SMHC and the SMHC converges the light signals towards multiple spatially-separated exit pupils at or proximate the eye of the user. The particular exit pupil at the eye of the user towards which any particular light signal is converged by the SMHC depends on the particular region of the SMHC upon which the light signal is incident.
    Type: Grant
    Filed: May 3, 2016
    Date of Patent: January 8, 2019
    Assignee: NORTH INC.
    Inventors: Matthew Bailey, Stefan Alexander, Vance R. Morrison, Thomas Mahon, Lloyd Frederick Holland, Jaehong Choi
  • Patent number: 10160405
    Abstract: A vehicle decal assembly is provided herein. The decal assembly includes a substrate having a diffraction grating along a surface thereof. A luminescent structure is disposed along a surface of the substrate. A reflective layer is disposed on an opposing side of the luminescent structure from the substrate. An adhesive layer is configured to maintain the substrate on a vehicle panel.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: December 25, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Stuart C. Salter, Paul Kenneth Dellock, Jeffrey Singer, Pietro Buttolo
  • Patent number: 10139633
    Abstract: Systems, devices, and methods that integrate eye tracking capability into scanning laser projector (“SLP”)-based wearable heads-up displays are described. An infrared laser diode is added to an RGB SLP and an infrared photodetector is aligned to detect reflections of the infrared light from features of the eye. A holographic optical element (“HOE”) may be used to combine visible light, infrared light, and environmental light into the user's “field of view.” The HOE may be heterogeneous and multiplexed to apply positive optical power to the visible light and zero or negative optical power to the infrared light.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: November 27, 2018
    Assignee: THALMIC LABS INC.
    Inventors: Stefan Alexander, Jake Chapeskie, Lloyd Frederick Holland, Thomas Mahon
  • Patent number: 10108010
    Abstract: A method or system can be used with an aircraft or other vehicle. The system can include or the method can use a waveguide disposed above and below a top surface of a glare shield. The waveguide can be part of a head up display (HUD). The waveguide can be disposed to cover at least part of the head down display to provide an integrated display.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: October 23, 2018
    Assignee: ROCKWELL COLLINS, INC.
    Inventors: Kenneth A. Zimmerman, David I. Han, Robert D. Brown, Christopher A. Keith
  • Patent number: 10108144
    Abstract: A head-mounted display device comprises a rendering engine configured to generate a hologram representative of a three-dimensional object. The hologram includes depth information that causes the three-dimensional object to be rendered with a focus that is determined by the depth information. The device also includes a spatial light modulator that modulates light from a light source as indicated by the hologram. A switchable hologram comprises multiple stacked switchable gratings. Each of the stacked switchable gratings is associated with one or more resulting exit pupil locations on a viewing surface. The system also comprises an eye tracker configured to map a viewing direction of a user's eye to a viewing location on the viewing surface. A processor is configured to activate a particular switchable grating within the switchable transmission hologram that is associated with an exit pupil location that aligns with the viewing location.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: October 23, 2018
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Steven John Robbins, Andrew Maimone, Andreas Georgiou, Joel Steven Kollin
  • Patent number: 10099788
    Abstract: In a lighting arrangement (2) for an interior (4) of a vehicle, having a beam area (6) for emitting light (8) into an environment (10) of the lighting arrangement (2), having at least one first luminaire (12a, b) having a first luminous area (14a, b) for emitting the light (8), the first luminous area (14a, b) being part of the beam area (6), having at least one projector (16) with a beam opening (18) for emitting the light (8), the beam opening (18) being part of the beam area (6), at least one of the first luminaires (12a, b) has at least one passage region (34) for at least one part of one of the beam openings (18) of one of the projectors (16) on its first luminous area (14a, b), and/or, in at least one of the projectors (16), a surface region (20) of the projector (16) which is adjacent to the beam opening (18) is in the form of a second luminaire (21) having a second luminous area (22) for emitting light (8), the second luminous area (22) being part of the beam area (6).
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: October 16, 2018
    Assignee: DIEHL AEROSPACE GMBH
    Inventor: Bastian Lins
  • Patent number: 10088681
    Abstract: A see-through optical display apparatus includes an image generating component, a tilted primary mirror having a non-flat, freeform, front optical surface, and a tilted secondary mirror having a non-flat, freeform, front optical surface, wherein the apparatus has an external pupil. A method for designing/making a see-through optical display apparatus for displaying an image generated by or on an image generating component of the apparatus.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: October 2, 2018
    Assignee: University of Rochester
    Inventors: Jannick P. Rolland, Aaron Bauer
  • Patent number: 10078220
    Abstract: Systems, devices, and methods that integrate eye tracking capability into scanning laser projector (“SLP”)-based wearable heads-up displays are described. At least one narrow waveband laser diode is used in an SLP to define one or more portion(s) of a visible image. At least one corresponding narrow waveband photodetector is aligned to detect reflections of the portion(s) of the image from features of the eye. A holographic optical element (“HOE”) may be used to combine the image and environmental light into the user's “field of view.” Three narrow waveband photodetectors each responsive to a respective one of three narrow wavebands output by the RGB laser diodes of an RGB SLP are aligned to detect reflections of a projected RGB image from features of the eye.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: September 18, 2018
    Assignee: THALMIC LABS INC.
    Inventors: Stefan Alexander, Jake Chapeskie, Lloyd Frederick Holland, Thomas Mahon
  • Patent number: 10073268
    Abstract: Systems, devices, and methods that integrate eye tracking capability into scanning laser projector (“SLP”)-based wearable heads-up displays are described. At least one narrow waveband laser diode is used in an SLP to define one or more portion(s) of a visible image. At least one corresponding narrow waveband photodetector is aligned to detect reflections of the portion(s) of the image from features of the eye. A holographic optical element (“HOE”) may be used to combine the image and environmental light into the user's “field of view.” Three narrow waveband photodetectors each responsive to a respective one of three narrow wavebands output by the RGB laser diodes of an RGB SLP are aligned to detect reflections of a projected RGB image from features of the eye.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: September 11, 2018
    Assignee: THALMIC LABS INC.
    Inventors: Stefan Alexander, Jake Chapeskie, Lloyd Frederick Holland, Thomas Mahon
  • Patent number: 10073278
    Abstract: In an optical display system that includes a waveguide with multiple diffractive optical elements (DOEs), an in-coupling DOE couples light into the waveguide, an intermediate DOE provides exit pupil expansion in a first direction, and an out-coupling DOE provides exit pupil expansion in a second direction and couples light out of the waveguide. The in-coupling DOE is configured with two portions—a first portion includes a grating to rotate a polarization state of in-coupled light while a second portion couples light into the waveguide without modulation of the polarization state. The in-coupled light beams with different polarization states are combined in the waveguide after undergoing total internal reflection. However, as the difference in optical path lengths of the constituent light beams exceeds the coherence length, the combined light has random polarization (i.e., a degree of polarization equal to zero).
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: September 11, 2018
    Assignee: Microsoft Technology Licensing, LLC
    Inventor: Tuomas Vallius
  • Patent number: 10061124
    Abstract: A diffractive beam expander for use in an augmented-reality display is disclosed. The device can include a optical substrate with a first diffractive optical element having a first diffractive grating disposed on one surface and a second diffractive grating disposed on the opposing surface. Portions of the first and second diffractive gratings overlap to define an in-coupling area configured to receive a beam of incoming light. The first diffractive optical element expands at least part of the received light beam by odd-order diffraction expansion in a first region and a second region and expands at least part of the received light beam by even-order diffraction expansion in a third region. The light components by the first diffractive optical element are then coupled into a second diffractive optical element, which is configured to out-couple at least part of the expanded diffracted light components to exit the substrate by diffraction.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: August 28, 2018
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Jani Kari Tapio Tervo, Tuomas Heikki Vallius