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公开(公告)号：US11487106B2
公开(公告)日：2022-11-01
申请号：US17327503
申请日：2021-05-21
Applicant: Magic Leap, Inc.
Abstract: A method of fabricating a multi-element fiber scanner includes providing a fiber optic cable having a cladding region and a fiber core and focusing a laser beam at a series of predetermined locations inside the cladding region of the fiber optic cable. The method also includes creating a plurality of damage sites at the predetermined locations, exposing the fiber optic cable to an etchant solution, and preferentially etching the plurality of damage sites to form a base having a base plane and a longitudinal axis orthogonal to the base plane, a retention collar disposed a predetermined distance along the longitudinal axis from the base, a first fiber link including the fiber core, passing through the base plane, and joined to the retention collar, and a plurality of additional links joined to the base, extending from the base to the retention collar, and joined to the retention collar.
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82.发明授权公开(公告)号：US11442227B2
公开(公告)日：2022-09-13
申请号：US17076510
申请日：2020-10-21
Applicant: Magic Leap, Inc.
Inventor： Brian T. Schowengerdt , Mathew D. Watson , Charles David Melville
Abstract: A fiber optic element of a fiber scanning system includes a motion actuator having longitudinal side members, an internal orifice, a first support region, a central region, and a second support region. The fiber optic element also includes a first fiber optic cable passing through the internal orifice and having a first fiber joint as well as a second fiber optic cable passing through the internal orifice. The second fiber optic cable has a second fiber joint disposed in the central region and spliced to the first fiber joint, a second coupling region, a light delivery region, and a light emission tip. The light delivery region is characterized by a first diameter and the light emission tip is characterized by a second diameter less than the first diameter.
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公开(公告)号：US20220146834A1
公开(公告)日：2022-05-12
申请号：US17581773
申请日：2022-01-21
Applicant: Magic Leap, Inc.
Inventor： Michael Anthony Klug , Robert Konrad , Gordon Wetzstein , Brian T. Schowengerdt , Michal Beau Dennison Vaughn
IPC: G02B27/01 , G02B30/24 , G02B30/34 , H04N13/128 , H04N13/383 , H04N13/344 , H04N13/341 , H04N13/339 , H04N13/398
Abstract: An augmented reality display system is configured to direct a plurality of parallactically-disparate intra-pupil images into a viewer's eye. The parallactically-disparate intra-pupil images provide different parallax views of a virtual object, and impinge on the pupil from different angles. In the aggregate, the wavefronts of light forming the images approximate a continuous divergent wavefront and provide selectable accommodation cues for the user, depending on the amount of parallax disparity between the intra-pupil images. The amount of parallax disparity is selected using a light source that outputs light for different images from different locations, with spatial differences in the locations of the light output providing differences in the paths that the light takes to the eye, which in turn provide different amounts of parallax disparity. Advantageously, the wavefront divergence, and the accommodation cue provided to the eye of the user, may be varied by appropriate selection of parallax disparity, which may be set by selecting the amount of spatial separation between the locations of light output.
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公开(公告)号：US11300844B2
公开(公告)日：2022-04-12
申请号：US17175566
申请日：2021-02-12
Applicant: Magic Leap, Inc.
Inventor： Brian T. Schowengerdt , John Graham Macnamara , Chulwoo Oh
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.
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公开(公告)号：US20220076495A1
公开(公告)日：2022-03-10
申请号：US17525811
申请日：2021-11-12
Applicant: MAGIC LEAP, INC.
Inventor： Brian T. Schowengerdt , Samuel A. Miller
Abstract: One embodiment is directed to a user display device comprising a housing frame mountable on the head of the user, a lens mountable on the housing frame and a projection sub system coupled to the housing frame to determine a location of appearance of a display object in a field of view of the user based at least in part on at least one of a detection of a head movement of the user and a prediction of a head movement of the user, and to project the display object to the user based on the determined location of appearance of the display object.
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Patent Agency Ranking
公开(公告)号：US20210397004A1
公开(公告)日：2021-12-23
申请号：US17326833
申请日：2021-05-21
Applicant: Magic Leap, Inc.
Inventor： Brian T. Schowengerdt
Abstract: Augmented reality and virtual reality display systems and devices are configured for efficient use of projected light. In some aspects, a display system includes a light projection system and a head-mounted display configured to project light into an eye of the user to display virtual image content. The head-mounted display includes at least one waveguide comprising a plurality of in-coupling regions each configured to receive, from the light projection system, light corresponding to a portion of the user's field of view and to in-couple the light into the waveguide; and a plurality of out-coupling regions configured to out-couple the light out of the waveguide to display the virtual content, wherein each of the out-coupling regions are configured to receive light from different ones of the in-coupling regions. In some implementations, each in-coupling region has a one-to-one correspondence with a unique corresponding out-coupling region.
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公开(公告)号：US20210389593A1
公开(公告)日：2021-12-16
申请号：US17461732
申请日：2021-08-30
Applicant: Magic Leap, Inc.
Inventor： Samuel A. Miller , Paul M. Greco , Brian T. Schowengerdt
Abstract: An augmented reality display system includes a pair of variable focus lens elements that sandwich a waveguide stack. One of the lens elements is positioned between the waveguide stack and a user's eye to correct for refractive errors in the focusing of light projected from the waveguide stack to that eye. The lens elements may also be configured to provide appropriate optical power to place displayed virtual content on a desired depth plane. The other lens element is between the ambient environment and the waveguide stack, and is configured to provide optical power to compensate for aberrations in the transmission of ambient light through the waveguide stack and the lens element closest to the eye. In addition, an eye-tracking system monitors the vergence of the user's eyes and automatically and continuously adjusts the optical powers of the pair of lens elements based on the determined vergence of those eyes.
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公开(公告)号：US20210278686A1
公开(公告)日：2021-09-09
申请号：US17210236
申请日：2021-03-23
Applicant: Magic Leap, Inc.
Inventor： Brian T. Schowengerdt , Mathew D. Watson
Abstract: A method of displaying an image to a viewer includes operating a fiber scanning projector to produce a scanned light beam incident on an incoupling diffractive optical element (DOE) coupled to a waveguide. A portion of the light beam is reflected via a reflective back surface of the incoupling DOE. The reflected portion of the scanned light beam is incident on a reflective optical element, which reflects the light beam back to the incoupling DOE. The returning light beam is then diffracted by the incoupling DOE to produce a second pass first diffracted light beam. The second pass first diffracted light beam is propagated within the planar waveguide via total internal reflection (TIR) to an outcoupling DOE, which directs a portion of the second pass first diffracted light beam toward an eye of a viewer to display the image to the user.
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公开(公告)号：US11036001B2
公开(公告)日：2021-06-15
申请号：US16727076
申请日：2019-12-26
Applicant: Magic Leap, Inc.
Inventor： Brian T. Schowengerdt , Matthew D. Watson
IPC: G02F1/295 , G02B6/06 , G02B27/01 , G02B6/08 , G02B26/08 , G02B6/02 , G02B6/028 , G02B6/32 , G02B26/10 , G02F1/335
Abstract: One embodiment is directed to a compact system for scanning electromagnetic imaging radiation, comprising a first waveguide and a second waveguide, each of which is operatively coupled to at least one electromagnetic radiation source and configured such that output from the first and second waveguides is luminance modulated and scanned along one or more axes to form at least a portion of an image.
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90.发明授权公开(公告)号：US11025897B2
公开(公告)日：2021-06-01
申请号：US16892184
申请日：2020-06-03
Applicant: Magic Leap, Inc.
IPC: H04N13/383 , G02B27/01 , H04N9/31 , H04N13/344 , G02B27/00 , G02C11/00
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.
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