Patents by Inventor Lionel Ernest Edwin

Lionel Ernest Edwin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11536559
    Abstract: Examples of a light field metrology system for use with a display are disclosed. The light field metrology may capture images of a projected light field, and determine focus depths (or lateral focus positions) for various regions of the light field using the captured images. The determined focus depths (or lateral positions) may then be compared with intended focus depths (or lateral positions), to quantify the imperfections of the display. Based on the measured imperfections, an appropriate error correction may be performed on the light field to correct for the measured imperfections. The display can be an optical display element in a head mounted display, for example, an optical display element capable of generating multiple depth planes or a light field display.
    Type: Grant
    Filed: November 2, 2020
    Date of Patent: December 27, 2022
    Assignee: Magic Leap, Inc.
    Inventors: Ivan Li Chuen Yeoh, Lionel Ernest Edwin, Samuel A. Miller
  • Patent number: 11474362
    Abstract: A wearable display device suitable for use in an augmented reality environment is disclosed. The wearable display device can include a projector configured to project light through diffractive optical elements that then distributed the light to multiple display regions. Each of the display regions can be arranged to project light out of the wearable display device towards an eye of a user. Since each of the display regions are positioned in different locations with respect to an eye of a user, the result is that each display region directs light in a different direction. In this way the apparent field of view for a user of the wearable display can be substantially increased.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: October 18, 2022
    Assignee: Magic Leap, Inc.
    Inventors: Brian T. Schowengerdt, Ivan Li Chuen Yeoh, Lionel Ernest Edwin
  • Publication number: 20220326513
    Abstract: A method for providing a composite field of view includes providing two or more input light beams to a scanning mirror and scanning the two or more input light beams using the scanning mirror to provide a plurality of reflected light beams at different angles. Each of the plurality of reflected light beams is configured to provide an image in a respective field of view. The method also includes receiving the plurality of reflected light beams in a waveguide and projecting a plurality of output light beams from the waveguide to form a projected image in the composite field of view. The composite field of view is larger than the respective field of view provided by each of the two or more input light beams.
    Type: Application
    Filed: June 21, 2022
    Publication date: October 13, 2022
    Applicant: Magic Leap, Inc.
    Inventors: Ivan Li-Chuen Yeoh, Lionel Ernest Edwin, Barak Freedman, Vaibhav Mathur, Xiaoyang Zhang, Timothy Mark Dalrymple, Clinton Carlisle, Chulwoo Oh, Philip Premysler
  • Patent number: 11468640
    Abstract: A display system includes a head-mounted display configured to project light, having different amounts of wavefront divergence, to an eye of a user to display virtual image content appearing to be disposed at different depth planes. The wavefront divergence may be changed in discrete steps, with the change in steps being triggered based upon whether the user is fixating on a particular depth plane. The display system may be calibrated for switching depth planes for a main user. Upon determining that a guest user is utilizing the system, rather than undergoing a full calibration, the display system may be configured to switch depth planes based on a rough determination of the virtual content that the user is looking at. The virtual content has an associated depth plane and the display system may be configured to switch to the depth plane of that virtual content.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: October 11, 2022
    Assignee: Magic Leap, Inc.
    Inventors: Samuel A. Miller, Lomesh Agarwal, Lionel Ernest Edwin, Ivan Li Chuen Yeoh, Daniel Farmer, Sergey Fyodorovich Prokushkin, Yonatan Munk, Edwin Joseph Selker, Erik Fonseka, Paul M. Greco, Jeffrey Scott Sommers, Bradley Vincent Stuart, Shiuli Das, Suraj Manjunath Shanbhag
  • Patent number: 11461961
    Abstract: Techniques are described for operating an optical system. In some embodiments, light associated with a world object is received at the optical system. Virtual image light is projected onto an eyepiece of the optical system. A portion of a system field of view of the optical system to be at least partially dimmed is determined based on information detected by the optical system. A plurality of spatially-resolved dimming values for the portion of the system field of view may be determined based on the detected information. The detected information may include light information, gaze information, and/or image information. A dimmer of the optical system may be adjusted to reduce an intensity of light associated with the world object in the portion of the system field of view according to the plurality of dimming values.
    Type: Grant
    Filed: May 25, 2021
    Date of Patent: October 4, 2022
    Assignee: Magic Leap, Inc.
    Inventors: Vaibhav Mathur, David Manly, Jahja I. Trisnadi, Clinton Carlisle, Lionel Ernest Edwin, Michael Anthony Klug
  • Patent number: 11435572
    Abstract: An image display system includes an optical subsystem configured to emit a first light beam and a second light beam, wherein the first light beam illuminates a first portion of a composite field of view and the second beam illuminates a second portion of the composite field of view. A scanning mirror is positioned to intercept and reflect the first light beam and the second light beam. The system also has a waveguide with at least one input coupling optical element for receiving the first light beam and the second light beam into the waveguide. The waveguide also has an output coupling optical element for projecting a plurality of output light beams derived from the first light beam and the second light beam from the waveguide to illuminate the composite field of view.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: September 6, 2022
    Assignee: Magic Leap, Inc.
    Inventors: Ivan Li-Chuen Yeoh, Lionel Ernest Edwin, Barak Freedman, Vaibhav Mathur, Xiaoyang Zhang, Timothy Mark Dalrymple, Clinton Carlisle, Chulwoo Oh, Philip Premysler
  • Publication number: 20220221934
    Abstract: A wearable device may include a head-mounted display (HMD) for rendering a three-dimensional (3D) virtual object which appears to be located in an ambient environment of a user of the display. The relative positions of the HMD and one or more eyes of the user may not be in desired positions to receive, or register, image information outputted by the HMD. For example, the HMD-to-eye alignment vary for different users and may change over time (e.g., as a given user moves around or as the HMD slips or otherwise becomes displaced). The wearable device may determine a relative position or alignment between the HMD and the user's eyes. Based on the relative positions, the wearable device may determine if it is properly fitted to the user, may provide feedback on the quality of the fit to the user, and may take actions to reduce or minimize effects of any misalignment.
    Type: Application
    Filed: March 28, 2022
    Publication date: July 14, 2022
    Inventors: Lionel Ernest Edwin, Zachary C. Nienstedt, Ivan Li Chuen Yeoh, Samuel A. Miller, Yan Xu, Jordan Alexander Cazamias
  • Patent number: 11366322
    Abstract: A virtual image generation system for use by an end user comprises a projection subsystem configured for generating a collimated light beam, and a display configured emitting light rays in response to the collimated light beam to display a pixel of an image frame to the end user. The pixel has a location encoded with angles of the emitted light rays. The virtual image generation system further comprises a sensing assembly configured for sensing at least one parameter indicative of at least one of the emitted light ray angles, and a control subsystem configured for generating image data defining a location of the pixel, and controlling an angle of the light beam relative to the display based on the defined location of the pixel and the sensed parameter(s).
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: June 21, 2022
    Assignee: Magic Leap, Inc.
    Inventors: Ivan L. Yeoh, Lionel Ernest Edwin, Robert Dale Tekolste
  • Publication number: 20220171190
    Abstract: A wearable display system includes a light projection system having one or more emissive microdisplays, e.g., micro-LED displays. The light projection system projects time-multiplexed left-eye and right-eye images, which pass through an optical router having a polarizer and a switchable polarization rotator. The optical router is synchronized with the generation of images by the light projection system to impart a first polarization to left-eye images and a second different polarization to right-eye images. Light of the first polarization is incoupled into an eyepiece having one or more waveguides for outputting light to one of the left and right eyes, while light of the second polarization may be incoupled into another eyepiece having one or more waveguides for outputting light to the other of the left and right eyes. Each eyepiece may output incoupled light with variable amounts of wavefront divergence, to elicit different accommodation responses from the user's eyes.
    Type: Application
    Filed: December 20, 2019
    Publication date: June 2, 2022
    Inventors: Jahja I. Trisnadi, Hyunsun Chung, Lionel Ernest Edwin, Howard Russell Cohen, Robert Blake Taylor, Andrew Ian Russell, Kevin Richard Curtis, Clinton Carlisle
  • Publication number: 20220148538
    Abstract: Methods and systems for depth-based foveated rendering in the display system are disclosed. The display system may be an augmented reality display system configured to provide virtual content on a plurality of depth planes using different wavefront divergence. Some embodiments include determining a fixation point of a user's eyes. Location information associated with a first virtual object to be presented to the user via a display device is obtained. A resolution-modifying parameter of the first virtual object is obtained. A particular resolution at which to render the first virtual object is identified based on the location information and the resolution-modifying parameter of the first virtual object. The particular resolution is based on a resolution distribution specifying resolutions for corresponding distances from the fixation point. The first virtual object rendered at the identified resolution is presented to the user via the display system.
    Type: Application
    Filed: January 21, 2022
    Publication date: May 12, 2022
    Inventors: Vaibhav Mathur, Lionel Ernest Edwin, Xiaoyang Zhang, Bjorn Nicolaas Servatius Vlaskamp
  • Patent number: 11317064
    Abstract: A display subsystem for a virtual image generation system for use by an end user comprises a display, an optical fiber having a polarization-maintaining (PM) transmission fiber section and a non-PM scanning fiber section, a light source configured for injecting a linearly polarized light beam into the transmission fiber section, such that the linearly polarized light beam is emitted from the scanning fiber section, a mechanical scanning drive assembly in which the scanning fiber section is affixed, wherein the mechanical scanning drive assembly is configured for displacing the scanning optical fiber section is order to scan the emitted light beam, and a display configured for receiving the scanned light beam and generating an image to the end user.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: April 26, 2022
    Assignee: Magic Leap, Inc.
    Inventors: Ivan Yeoh, Lionel Ernest Edwin, David Tinch
  • Publication number: 20220113792
    Abstract: Techniques are disclosed for performing localization of a handheld device with respect to a wearable device. At least one sensor mounted to the handheld device, such as an inertial measurement unit (IMU), may obtain handheld data indicative of movement of the handheld device with respect to the world. An imaging device mounted to either the handheld device or the wearable device may capture a fiducial image containing a number of fiducials affixed to the other device. The number of fiducials contained in the image are determined. Based on the number of fiducials, at least one of a position and an orientation of the handheld device with respect to the wearable device are updated based on the image and the handheld data in accordance with a first operating state, a second operating state, or a third operating state.
    Type: Application
    Filed: October 8, 2021
    Publication date: April 14, 2022
    Applicant: Magic Leap, Inc.
    Inventors: Zachary C. Neinstedt, Samuel A. Miller, Barak Freedman, Lionel Ernest Edwin, Eric C. Browy, William Hudson Welch, Ron Liraz Lidji
  • Patent number: 11290706
    Abstract: A wearable device may include a head-mounted display (HMD) for rendering a three-dimensional (3D) virtual object which appears to be located in an ambient environment of a user of the display. The relative positions of the HMD and one or more eyes of the user may not be in desired positions to receive, or register, image information outputted by the HMD. For example, the HMD-to-eye alignment vary for different users and may change over time (e.g., as a given user moves around or as the HMD slips or otherwise becomes displaced). The wearable device may determine a relative position or alignment between the HMD and the user's eyes. Based on the relative positions, the wearable device may determine if it is properly fitted to the user, may provide feedback on the quality of the fit to the user, and may take actions to reduce or minimize effects of any misalignment.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: March 29, 2022
    Assignee: Magic Leap, Inc.
    Inventors: Lionel Ernest Edwin, Zachary C. Nienstedt, Ivan Li Chuen Yeoh, Samuel A. Miller, Yan Xu, Jordan Alexander Cazamias
  • Publication number: 20220092747
    Abstract: The systems and methods described can include approaches to calibrate head-mounted displays for improved viewing experiences. Some methods include receiving data of a first target image associated with an undeformed state of a first eyepiece of a head-mounted display device; receiving data of a first captured image associated with deformed state of the first eyepiece of the head-mounted display device; determining a first transformation that maps the first captured image to the image; and applying the first transformation to a subsequent image for viewing on the first eyepiece of the head-mounted display device.
    Type: Application
    Filed: December 3, 2021
    Publication date: March 24, 2022
    Inventors: Lionel Ernest Edwin, Samuel A. Miller, Etienne Gregoire Grossmann, Brian Christopher Clark, Michael Robert Johnson, Wenyi Zhao, Nukul Sanjay Shah, Po-Kang Huang
  • Publication number: 20220091427
    Abstract: Systems and methods are disclosed for low motion-to-photon latency for augmented and virtual reality systems. Some systems generate rendered frames that are presented to a user by outputting light from a head-mounted display unit. The rendered frames are perceived by the user as virtual content. The head-mounted display unit includes an orientation sensor, a display configured to output light to the user, and processors. The processors receive a rendered frame of virtual content, obtain orientation information from the orientation sensor, and warp or modify the rendered frame of virtual content based on changes to the orientation of the user's head. The warped rendered frame is subsequently outputted from the display using modulated light. The processors and the orientation sensor may be part of a spatial light modulator for modulating the light used to present the warped rendered frame. In addition, the spatial light modulator may be a LED array having low persistence and a high duty cycle.
    Type: Application
    Filed: December 20, 2019
    Publication date: March 24, 2022
    Inventors: Lionel Ernest Edwin, Andrew Ian Russell, Howard Russell Cohen
  • Patent number: 11277602
    Abstract: An eyepiece unit for projecting an image to an eye of a viewer includes an eyepiece having a world side and a viewer side opposite the world side. The eyepiece includes an input coupling diffractive optical element, an orthogonal pupil expander diffractive optical element, and an exit pupil expander diffractive optical element. The eyepiece unit also includes a curved cosmetic lens disposed adjacent the world side of the eyepiece and a polarizer disposed adjacent the world side of the eyepiece.
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: March 15, 2022
    Assignee: Magic Leap, Inc.
    Inventors: Hui-Chuan Cheng, Ivan Li Chuen Yeoh, Lionel Ernest Edwin
  • Publication number: 20220057862
    Abstract: A display system can include a head-mounted display configured to project light to an eye of a user to display virtual image content at different amounts of divergence and collimation. The display system can include an inward-facing imaging system images the user's eye and processing electronics that are in communication with the inward-facing imaging system and that are configured to obtain an estimate of a center of rotation of the user's eye. The display system may render virtual image content with a render camera positioned at the determined position of the center of rotation of said eye.
    Type: Application
    Filed: September 2, 2021
    Publication date: February 24, 2022
    Inventors: Samuel A. Miller, Lomesh Agarwal, Lionel Ernest Edwin, Ivan Li Chuen Yeoh, Daniel Farmer, Sergey Fyodorovich Prokushkin, Yonatan Munk, Edwin Joseph Selker, Bradley Vincent Stuart, Jeffrey Scott Sommers
  • Publication number: 20220057630
    Abstract: A head-mounted display system is configured to project light to an eye of a user wearing the head-mounted display system to display content in a vision field of said user. The head-mounted display system comprises at least one diffusive optical element, at least one out-coupling optical element, at least one mask comprising at least one mask opening, at least one illumination in-coupling optical element configured to in-couple light from at least one illumination source into a light-guiding component, an image projector configured to in-couple an image and an at least one illumination source is configured to in-couple light into at least one illumination in-coupling optical element, an eyepiece, a curved light-guiding component, a light-guiding component comprising a portion of a frame, and/or two light-guiding components disposed on opposite sides of at least one out-coupling optical element.
    Type: Application
    Filed: August 27, 2021
    Publication date: February 24, 2022
    Inventors: Lionel Ernest Edwin, Ivan Li Chuen Yeoh, Zhiheng Jia, Adam C. Carlson
  • Publication number: 20220050298
    Abstract: A wearable display system includes one or more emissive micro-displays, e.g., micro-LED displays. The micro-displays may be monochrome micro-displays or full-color micro-displays. The micro-displays may include arrays of light emitters. Light collimators may be utilized to narrow the angular emission profile of light emitted by the light emitters. Where a plurality of emissive micro-displays is utilized, the micro-displays may be positioned at different sides of an optical combiner, e.g., an X-cube prism which receives light rays from different micro-displays and outputs the light rays from the same face of the cube. The optical combiner directs the light to projection optics, which outputs the light to an eyepiece that relays the light to a user's eye. The eyepiece may output the light to the user's eye with different amounts of wavefront divergence, to place virtual content on different depth planes.
    Type: Application
    Filed: December 20, 2019
    Publication date: February 17, 2022
    Inventors: Michael Anthony Klug, Evgeni Poliakov, Jahja I. Trisnadi, Hyunsun Chung, Lionel Ernest Edwin, Howard Russell Cohen, Robert Blake Taylor, Andrew Ian Russell, Kevin Richard Curtis, Clinton Carlisle
  • Patent number: 11249255
    Abstract: An eyepiece for projecting an image to an eye of a viewer includes a first planar waveguide positioned in a first lateral plane, a second planar waveguide positioned in a second lateral plane adjacent the first lateral plane, and a third planar waveguide positioned in a third lateral plane adjacent the second lateral plane. The first planar waveguide includes a first diffractive optical element (DOE) coupled thereto and disposed at a first lateral position. The second planar waveguide includes a second DOE coupled thereto and disposed at a second lateral position. The third planar waveguide includes a third DOE coupled thereto and disposed at the second lateral position. The eyepiece further includes an optical filter positioned between the second planar waveguide and the third planar waveguide at the second lateral position.
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: February 15, 2022
    Assignee: Magic Leap, Inc.
    Inventors: Ivan Li Chuen Yeoh, Lionel Ernest Edwin, Hui-Chuan Cheng