公开(公告)号：US11353641B2

公开(公告)日：2022-06-07

申请号：US16862251

申请日：2020-04-29

Applicant: Magic Leap, Inc.

Inventor： Robert D. Tekolste ,  Michael Anthony Klug ,  Paul M. Greco ,  Brian T. Schowengerdt

IPC: G02B5/18 ,  B29D11/00 ,  G02B27/01

Abstract: Disclosed is an improved diffraction structure for 3D display systems. The improved diffraction structure includes an intermediate layer that resides between a waveguide substrate and a top grating surface. The top grating surface comprises a first material that corresponds to a first refractive index value, the underlayer comprises a second material that corresponds to a second refractive index value, and the substrate comprises a third material that corresponds to a third refractive index value. According to additional embodiments, improved approaches are provided to implement deposition of imprint materials onto a substrate, which allow for very precise distribution and deposition of different imprint patterns onto any number of substrate surfaces.

公开(公告)号：US20220113552A1

公开(公告)日：2022-04-14

申请号：US17555640

申请日：2021-12-20

Applicant: MAGIC LEAP, INC.

Inventor： Brian T. Schowengerdt

IPC: G02B27/42 ,  H04N5/21 ,  G06T15/50 ,  G06T5/00 ,  H04N13/117 ,  H04N13/286 ,  H04N13/341 ,  H04N13/344 ,  H04N13/361 ,  H04N13/366 ,  H04N13/383 ,  G02B27/01 ,  G06T7/73 ,  H04N13/363 ,  H04N13/239 ,  G06T7/50 ,  G02B30/24 ,  G02F1/17 ,  G06V10/42 ,  G06V40/18 ,  G02B6/00 ,  G06T19/00 ,  G02B5/00 ,  G02F1/01 ,  G02B3/00 ,  G06T19/20 ,  G06F3/01 ,  G09G5/00 ,  H04N5/74 ,  G09G5/10 ,  G09G5/02 ,  G02B5/18 ,  G02B26/08 ,  G02B6/02 ,  G02B27/00 ,  G02B6/06 ,  G02B5/20 ,  G02F1/1334 ,  G02F1/29 ,  G06T13/40 ,  G02B6/34 ,  G02B6/40 ,  H04N5/225 ,  G02B6/32 ,  G02B17/08 ,  G06T15/10 ,  G06T17/10 ,  G09G5/18 ,  G06F3/14 ,  G06T15/00 ,  G02C7/04 ,  G02C7/10 ,  G06T5/50 ,  G02F1/31

Abstract: A method for displaying virtual content to a user, the method includes determining an accommodation of the user's eyes. The method also includes delivering, through a first waveguide of a stack of waveguides, light rays having a first wavefront curvature based at least in part on the determined accommodation, wherein the first wavefront curvature corresponds to a focal distance of the determined accommodation. The method further includes delivering, through a second waveguide of the stack of waveguides, light rays having a second wavefront curvature, the second wavefront curvature associated with a predetermined margin of the focal distance of the determined accommodation.

公开(公告)号：US11256096B2

公开(公告)日：2022-02-22

申请号：US17020641

申请日：2020-09-14

Applicant: Magic Leap, Inc.

Inventor： Nicole Elizabeth Samec ,  John Graham Macnamara ,  Christopher M. Harrises ,  Brian T. Schowengerdt ,  Rony Abovitz ,  Mark Baerenrodt

IPC: G02B27/00 ,  G02B27/01 ,  A61B3/14 ,  A61B3/113 ,  A61B3/16 ,  G06T19/00 ,  A61B3/10 ,  G16H40/63 ,  G16H40/67 ,  A61B5/145 ,  A61M21/02 ,  A61B3/00 ,  A61B3/12 ,  A61B5/361 ,  A61B5/369 ,  A61B5/398 ,  A61B5/1455 ,  A61B5/00 ,  A61B8/10 ,  A61B8/00 ,  A61B3/08 ,  A61B3/103 ,  A61F9/00 ,  A61B3/028 ,  A61B3/06 ,  A61B3/02 ,  A61B3/13 ,  G02B21/00 ,  A61B3/024 ,  A61B5/01 ,  A61M21/00 ,  G02C7/02 ,  A61F7/00 ,  A61N5/06 ,  A61F9/008

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.

公开(公告)号：US20210363003A1

公开(公告)日：2021-11-25

申请号：US17327700

申请日：2021-05-22

Applicant: Magic Leap, Inc.

Inventor： Steven Alexander-Boyd Hickman ,  Sarah Colline McQuaide ,  Abhijith Rajiv ,  Brian T. Schowengerdt ,  Charles David Melville

IPC: B81C1/00

Abstract: A method for fabricating a cantilever having a device surface, a tapered surface, and an end region includes providing a semiconductor substrate having a first side and a second side opposite to the first side and etching a predetermined portion of the second side to form a plurality of recesses in the second side. Each of the plurality of recesses comprises an etch termination surface. The method also includes anisotropically etching the etch termination surface to form the tapered surface of the cantilever and etching a predetermined portion of the device surface to release the end region of the cantilever.

公开(公告)号：US20210344897A1

公开(公告)日：2021-11-04

申请号：US17306732

申请日：2021-05-03

Applicant: Magic Leap, Inc.

Inventor： Brian T. Schowengerdt ,  Mathew D. Watson ,  Samuel Scott Frank ,  Charles David Melville

IPC: H04N13/383 ,  G02B27/01 ,  H04N9/31 ,  H04N13/344 ,  G02B27/00

Abstract: An eye tracking system includes a pair of glasses including two frames; a light scanning projector coupled to the pair of glasses and operable to scan a beam of light to project an image frame including a plurality of pixels; an eyepiece mounted in one of the two frames and optically coupled to the light scanning projector; one or more photodetectors coupled to one of the two frames and operable to detect time-varying reflected signals; and a processor coupled to the light scanning projector and the photodetectors. The eyepiece includes an exit pupil expander operable to direct a portion of the beam of light towards an eye of a user. Each of the time-varying reflected signals is associated with the plurality of pixels. The processor is operable to correlate the time-varying reflected signals with the plurality of pixels and determine a first eye orientation.

公开(公告)号：US11156835B2

公开(公告)日：2021-10-26

申请号：US15072290

申请日：2016-03-16

Applicant: MAGIC LEAP, INC.

Inventor： Nicole Elizabeth Samec ,  John Graham Macnamara ,  Christopher M. Harrises ,  Brian T. Schowengerdt ,  Rony Abovitz ,  Mark Baerenrodt

IPC: G02B27/01 ,  A61B5/00 ,  A61B3/14 ,  A61B3/113 ,  A61B3/16 ,  G06T19/00 ,  A61B3/10 ,  G16H40/63 ,  G16H40/67 ,  A61B5/145 ,  A61M21/02 ,  A61B3/00 ,  A61B3/12 ,  A61B5/361 ,  A61B5/369 ,  A61B5/398 ,  A61B5/1455 ,  A61B8/10 ,  A61B8/00 ,  A61B3/08 ,  A61B3/103 ,  A61F9/00 ,  G02B27/00 ,  A61B3/028 ,  A61B3/06 ,  A61B3/02 ,  A61B3/13 ,  G02B21/00 ,  A61B3/024 ,  A61B5/01 ,  A61M21/00 ,  G02C7/02 ,  A61F7/00 ,  A61N5/06 ,  A61F9/008

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.

公开(公告)号：US11107288B2

公开(公告)日：2021-08-31

申请号：US16903279

申请日：2020-06-16

Applicant: Magic Leap, Inc.

Inventor： Brian T. Schowengerdt ,  Mathew D. Watson ,  David Tinch ,  Ivan Li Chuen Yeoh ,  John Graham Macnamara ,  Lionel Ernest Edwin ,  Michael Anthony Klug ,  William Hudson Welch

IPC: G06T19/00 ,  G02B27/09 ,  G02B27/10 ,  G02B27/30 ,  G02B5/18 ,  G02B27/42 ,  G02B27/01 ,  G02B26/08 ,  G02B6/12

Abstract: A virtual image generation system comprises a planar optical waveguide having opposing first and second faces, an in-coupling (IC) element configured for optically coupling a collimated light beam from an image projection assembly into the planar optical waveguide as an in-coupled light beam, a first orthogonal pupil expansion (OPE) element associated with the first face of the planar optical waveguide for splitting the in-coupled light beam into a first set of orthogonal light beamlets, a second orthogonal pupil expansion (OPE) element associated with the second face of the planar optical waveguide for splitting the in-coupled light beam into a second set of orthogonal light beamlets, and an exit pupil expansion (EPE) element associated with the planar optical waveguide for splitting the first and second sets of orthogonal light beamlets into an array of out-coupled light beamlets that exit the planar optical waveguide.

公开(公告)号：US20210240018A1

公开(公告)日：2021-08-05

申请号：US17175566

申请日：2021-02-12

Applicant: Magic Leap, Inc.

Inventor： Brian T. Schowengerdt ,  John Graham Macnamara ,  Chulwoo Oh

IPC: G02F1/137 ,  F21V8/00 ,  G02F1/133 ,  G02B27/01 ,  G02B26/08 ,  G02F1/29

Abstract: A wearable augmented reality head-mounted display system can be configured to pass light from the world forward a wearer wearing the head-mounted system into an eye of the wearer. The head-mounted display system can include an optical display that is configured to output light to form an image. The system may include one or more waveguides that are disposed to receiving the light from the display. A variable power reflector can be disposed on the forward side of the one or more waveguides. The reflector can be configured to have an optical power that is adjustable upon application of an electrical signal.

公开(公告)号：US11067797B2

公开(公告)日：2021-07-20

申请号：US15479700

申请日：2017-04-05

Applicant: MAGIC LEAP, INC.

Inventor： Brian T. Schowengerdt ,  Mathew D. Watson

IPC: G02B27/01 ,  G02B30/52

Abstract: An augmented reality system includes a light source configured to generate a virtual light beam. The system also includes a light guiding optical element having an entry portion, an exit portion, and a surface having a diverter disposed adjacent thereto. The light source and the light guiding optical element are configured such that the virtual light beam enters the light guiding optical element through the entry portion, propagates through the light guiding optical element by at least partially reflecting off of the surface, and exits the light guiding optical element through the exit portion. The light guiding optical element is transparent to a first real-world light beam. The diverter is configured to modify a light path of a second real-world light beam at the surface.

公开(公告)号：US11022793B2

公开(公告)日：2021-06-01

申请号：US15927765

申请日：2018-03-21

Applicant: Magic Leap, Inc.

Inventor： Brian T. Schowengerdt ,  Mathew D. Watson ,  Charles David Melville ,  Samuel Scott Frank

IPC: H04N9/14 ,  H04N9/31 ,  G02B26/10 ,  G02B27/28 ,  G02B27/30 ,  G02B27/01

Abstract: A fiber scanning projector includes a piezoelectric element and a scanning fiber mechanically coupled to the piezoelectric element. The fiber scanning projector also includes an optical assembly section operable to receive light from the scanning fiber. The optical assembly section includes a prism element, a collimating element coupled to the prism element at an interface, a quarter wave plate, and a polarizing beam splitter disposed at the interface.