Patents by Inventor Hui-Chuan Cheng

Hui-Chuan Cheng 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: 11428859
    Abstract: An artifact mitigation system includes a projector assembly and a set of imaging optics optically coupled to the projector assembly. The artifact mitigation system also includes an eyepiece optically coupled to the set of imaging optics. The eyepiece includes a diffractive incoupling interface. The artifact mitigation system further includes an artifact prevention element disposed between the set of imaging optics and the eyepiece. The artifact prevention element includes a linear polarizer, a first quarter waveplate disposed adjacent the linear polarizer, and a color select component disposed adjacent the first quarter waveplate.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: August 30, 2022
    Assignee: Magic Leap, Inc.
    Inventors: Kevin Curtis, Hui-Chuan Cheng, Paul M. Greco, William Hudson Welch, Eric C. Browy, Miller Schuck, Bradley Jay Sissom
  • Patent number: 11422374
    Abstract: Configurations are disclosed for presenting virtual reality and augmented reality experiences to users. The system may comprise a spatial light modulator operatively coupled to an image source for projecting light associated with one or more frames of image data, and a variable focus element (VFE) for varying a focus of the projected light such that a first frame of image data is focused at a first depth plane, and a second frame of image data is focused at a second depth plane, and wherein a distance between the first depth plane and the second depth plane is fixed.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: August 23, 2022
    Assignee: Magic Leap, Inc.
    Inventors: William Hudson Welch, Robert D. Tekolste, Hyunsun Chung, Hui-Chuan Cheng
  • Patent number: 11391947
    Abstract: An optical device comprising may include a light turning element. The optical device can include a first surface that is parallel to a horizontal axis and a second surface opposite to the first surface. The optical device may include a light module that includes a plurality of light emitters. The light module can be configured to combine light for the plurality of emitters. The optical device can further include a light input surface that is between the first and the second surfaces and is disposed with respect to the light module to receive light emitted from the plurality of emitters. The optical device may include an end reflector that is disposed on a side opposite the light input surface. The light coupled into the light turning element may be reflected by the end reflector and/or reflected from the second surface towards the first surface.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: July 19, 2022
    Assignee: Magic Leap, Inc.
    Inventors: Hui-Chuan Cheng, Hyunsun Chung, Jahja I. Trisnadi, Clinton Carlisle, Chulwoo Oh, Kevin Richard Curtis
  • Publication number: 20220206301
    Abstract: An optical system for an augmented reality head mounted display eyepiece that is configured to deliver images to the eye wherein the optical system includes optics. The optics are disposed so as to receive light output from the light source. The optics further arranged with respect to a spatial light modulator such that the light received from the light source passes through the optics and illuminates the spatial light modulator. The light illuminating the spatial light modulator is redirected back through the optics and is coupled into at least one waveguide through at least one in-coupling optical element. At least a portion of the coupled light is ejected from at least one waveguide by at least one out-coupling optical element and directed to the eye of the user.
    Type: Application
    Filed: January 7, 2022
    Publication date: June 30, 2022
    Inventors: Kevin Richard Curtis, Bradley Jay Sissom, Hui-Chuan Cheng, Miller Harry Schuck, III, Samarth Bhargava, Erik Heath Arend
  • Publication number: 20220137418
    Abstract: In some embodiments, an augmented reality system includes at least one waveguide that is configured to receive and redirect light toward a user, and is further configured to allow ambient light from an environment of the user to pass therethrough toward the user. The augmented reality system also includes a first adaptive lens assembly positioned between the at least one waveguide and the environment, a second adaptive lens assembly positioned between the at least one waveguide and the user, and at least one processor operatively coupled to the first and second adaptive lens assemblies. Each lens assembly of the augmented reality system is selectively switchable between at least two different states in which the respective lens assembly is configured to impart at least two different optical powers to light passing therethrough, respectively.
    Type: Application
    Filed: January 14, 2022
    Publication date: May 5, 2022
    Inventors: Jason Schaefer, Hui-Chuan Cheng, David Manly, Jahja I. Trisnadi, Clinton Carlisle, Michael Anthony Klug
  • Publication number: 20220082837
    Abstract: An optical device comprising may include a wedge-shaped light turning element. The optical device can include a first surface that is parallel to a horizontal axis and a second surface opposite to the first surface that is inclined with respect to the horizontal axis by a wedge angle. The optical device may include a light module that includes a plurality of light emitters. The light module can be configured to combine light for the plurality of emitters. The optical device can further include a light input surface that is between the first and the second surfaces and is disposed with respect to the light module to receive light emitted from the plurality of emitters. The optical device may include an end reflector that is disposed on a side opposite the light input surface. The second surface may be inclined such that a height of the light input surface is less than a height of the side opposite the light input surface.
    Type: Application
    Filed: November 22, 2021
    Publication date: March 17, 2022
    Inventors: Hui-Chuan Cheng, Hyunsun Chung, Jahja I. Trisnadi, Clinton Carlisle, Kevin Richard Curtis, Chulwoo Oh
  • 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
  • Patent number: 11256093
    Abstract: An optical system for an augmented reality head mounted display eyepiece that is configured to deliver images to the eye wherein the optical system includes optics. The optics are disposed so as to receive light output from the light source. The optics further arranged with respect to a spatial light modulator such that the light received from the light source passes through the optics and illuminates the spatial light modulator. The light illuminating the spatial light modulator is redirected back through the optics and is coupled into at least one waveguide through at least one in-coupling optical element. At least a portion of the coupled light is ejected from at least one waveguide by at least one out-coupling optical element and directed to the eye of the user.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: February 22, 2022
    Assignee: Magic Leap, Inc.
    Inventors: Kevin Richard Curtis, Bradley Jay Sissom, Hui-Chuan Cheng, Miller Harry Schuck, III, Samarth Bhargava, Erik Heath Arend
  • 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
  • Patent number: 11249309
    Abstract: In some embodiments, an augmented reality system includes at least one waveguide that is configured to receive and redirect light toward a user, and is further configured to allow ambient light from an environment of the user to pass therethrough toward the user. The augmented reality system also includes a first adaptive lens assembly positioned between the at least one waveguide and the environment, a second adaptive lens assembly positioned between the at least one waveguide and the user, and at least one processor operatively coupled to the first and second adaptive lens assemblies. Each lens assembly of the augmented reality system is selectively switchable between at least two different states in which the respective lens assembly is configured to impart at least two different optical powers to light passing therethrough, respectively.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: February 15, 2022
    Assignee: Magic Leap, Inc.
    Inventors: Jason Schaefer, Hui-Chuan Cheng, David Manly, Jahja I. Trisnadi, Clinton Carlisle, Michael Anthony Klug
  • Publication number: 20210405402
    Abstract: A method for displaying an image using a wearable display system including directing display light from a display towards a user through an eyepiece to project images in the user's field of view, determining a relative location between an ambient light source and the eyepiece, and adjusting an attenuation of ambient light from the ambient light source through the eyepiece depending on the relative location between the ambient light source and the eyepiece.
    Type: Application
    Filed: June 25, 2021
    Publication date: December 30, 2021
    Inventors: Hui-Chuan Cheng, David Manly, Vaibhav Mathur, Joshua Naaman Haddock, Kevin Messer, Clinton Carlisle
  • Publication number: 20210382317
    Abstract: Illuminations systems that separate different colors into laterally displaced beams may be used to direct different color image content into an eyepiece for displaying images in the eye. Such an eyepiece may be used, for example, for an augmented reality head mounted display. Illumination systems may be provided that utilize one or more waveguides to direct light from a light source towards a spatial light modulator. Light from the spatial light modulator may be directed towards an eyepiece. Some aspects of the invention provide for light of different colors to be outcoupled at different angles from the one or more waveguides and directed along different beam paths.
    Type: Application
    Filed: June 17, 2021
    Publication date: December 9, 2021
    Inventors: Hui-Chuan Cheng, Chulwoo Oh, Clinton Carlisle, Michael Anthony Klug, William J. Molteni, JR.
  • Patent number: 11187900
    Abstract: An optical device comprising may include a wedge-shaped light turning element. The optical device can include a first surface that is parallel to a horizontal axis and a second surface opposite to the first surface that is inclined with respect to the horizontal axis by a wedge angle. The optical device may include a light module that includes a plurality of light emitters. The light module can be configured to combine light for the plurality of emitters. The optical device can further include a light input surface that is between the first and the second surfaces and is disposed with respect to the light module to receive light emitted from the plurality of emitters. The optical device may include an end reflector that is disposed on a side opposite the light input surface. The second surface may be inclined such that a height of the light input surface is less than a height of the side opposite the light input surface.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: November 30, 2021
    Assignee: Magic Leap, Inc.
    Inventors: Hui-Chuan Cheng, Wei Chen Lin, Hyunsun Chung, Jahja I. Trisnadi, Clinton Carlisle, Kevin Richard Curtis, Chulwoo Oh
  • Publication number: 20210356748
    Abstract: A display system includes projection optics configured to project a beam of light in a first direction and an eyepiece unit including a first waveguide layer disposed in a first lateral plane and including an incident light surface and an opposing surface opposite the incident light surface and an incoupling diffractive optical element disposed on the incident light surface. The incoupling diffractive optical element is configured to incouple a first portion of the beam of light and to propagate the first portion of the beam of light by total internal reflection in a second direction and transmit a second portion of the beam of light along the first direction. The eyepiece also includes a retroreflector disposed adjacent the opposing surface. The retroreflector is configured to retroreflect the second portion of the beam of light along a reflected direction opposite to the first direction.
    Type: Application
    Filed: May 27, 2021
    Publication date: November 18, 2021
    Applicant: Magic Leap, Inc.
    Inventor: Hui-Chuan Cheng
  • Patent number: 11150489
    Abstract: Configurations are disclosed for presenting virtual reality and augmented reality experiences to users. The system may comprise a scanning device for scanning one or more frames of image data. The scanning device may be communicatively coupled to an image source to receive the image data. The system may further comprise a variable focus element (VFE) operatively coupled to the scanning device for focusing the one or more frames of image data on an intermediate image plane, wherein the intermediate image plane is aligned to one of a plurality of switchable screens. The plurality of switchable screens may spread light associated with the intermediate image plane to specific viewing distances. The system may also comprise viewing optics operatively coupled to the plurality of switchable screens to relay the one or more frames of image data.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: October 19, 2021
    Assignee: Magic Leap, Inc.
    Inventor: Hui-Chuan Cheng
  • Publication number: 20210278695
    Abstract: Configurations are disclosed for presenting virtual reality and augmented reality experiences to users. The system may comprise a scanning device for scanning one or more frames of image data. The scanning device may be communicatively coupled to an image source to receive the image data. The system may further comprise a variable focus element (VFE) operatively coupled to the scanning device for focusing the one or more frames of image data on an intermediate image plane, wherein the intermediate image plane is aligned to one of a plurality of switchable screens. The plurality of switchable screens may spread light associated with the intermediate image plane to specific viewing distances. The system may also comprise viewing optics operatively coupled to the plurality of switchable screens to relay the one or more frames of image data.
    Type: Application
    Filed: May 24, 2021
    Publication date: September 9, 2021
    Applicant: MAGIC LEAP, INC.
    Inventor: Hui-Chuan CHENG
  • Publication number: 20210278672
    Abstract: A wearable display system includes an eyepiece stack having a world side and a user side opposite the world side. During use, a user positioned on the user side views displayed images delivered by the wearable display system via the eyepiece stack which augment the user's field of view of the user's environment. The system also includes an optical attenuator arranged on the world side of the of the eyepiece stack, the optical attenuator having a layer of a birefringent material having a plurality of domains each having a principal optic axis oriented in a corresponding direction different from the direction of other domains. Each domain of the optical attenuator reduces transmission of visible light incident on the optical attenuator for a corresponding different range of angles of incidence.
    Type: Application
    Filed: March 5, 2021
    Publication date: September 9, 2021
    Inventors: Kevin Messer, Joshua Naaman Haddock, Hui-Chuan Cheng, Vaibhav Mathur, Clinton Carlisle
  • Patent number: 11079603
    Abstract: Illuminations systems that separate different colors into laterally displaced beams may be used to direct different color image content into an eyepiece for displaying images in the eye. Such an eyepiece may be used, for example, for an augmented reality head mounted display. Illumination systems may be provided that utilize one or more waveguides to direct light from a light source towards a spatial light modulator. Light from the spatial light modulator may be directed towards an eyepiece. Some aspects of the invention provide for light of different colors to be outcoupled at different angles from the one or more waveguides and directed along different beam paths.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: August 3, 2021
    Assignee: Magic Leap, Inc.
    Inventors: Hui-Chuan Cheng, Chulwoo Oh, Clinton Carlisle, Michael Anthony Klug, William J. Molteni, Jr.
  • Publication number: 20210231947
    Abstract: An eyepiece for projecting an image includes a first planar waveguide positioned in a first lateral plane. The first planar waveguide comprises a first diffractive optical element (DOE) disposed at a first lateral position. The eyepiece also includes a second planar waveguide positioned in a second lateral plane adjacent to the first lateral plane. The second planar waveguide comprises a second DOE disposed at a second lateral position different from the first lateral position. The eyepiece further includes a third planar waveguide positioned in a third lateral plane adjacent to the second lateral plane. The third planar waveguide comprises a third DOE disposed at a third lateral position different from the first lateral position and the second lateral position. The eyepiece also includes an optical filter positioned between the second planar waveguide and the third planar waveguide. The optical filter is disposed at the third lateral position.
    Type: Application
    Filed: April 14, 2021
    Publication date: July 29, 2021
    Applicant: Magic Leap, Inc.
    Inventors: Miller Harry Schuck, III, Kevin Richard Curtis, Hui-Chuan Cheng, Bradley Jay Sissom, Paul M. Greco, William Hudson Welch, Eric C. Browy
  • Patent number: 11029590
    Abstract: Examples of light projector systems for directing input light from a light source to a spatial light modulator are provided. For example, an optical device is disclosed which includes a first surface having a diffractive optical element, a second surface normal to the first surface, and a third surface arranged at an angle to the second surface. The third surface may be a beam splitting surface that is reflective to light of a first state and transmissive to light of a second state. The diffractive optical element may receive an input beam made up of light having the first state, and may convert the input beam into at least a first diffracted beam at a first diffraction angle such that the first diffracted beam is directed toward the second surface, is reflected by the second surface toward the third surface via total internal reflection, and is reflected by the third surface in a direction substantially parallel to the first surface.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: June 8, 2021
    Assignee: Magic Leap, Inc.
    Inventors: Jahja Trisnadi, Pierre St. Hilaire, Hui-Chuan Cheng, Clinton Carlisle, Michael Anthony Klug, Kevin Richard Curtis