公开(公告)号：US20210048668A1

公开(公告)日：2021-02-18

申请号：US16978440

申请日：2019-03-01

Applicant: Magic Leap, Inc.

Inventor： Michael Anthony Klug

IPC: G02B27/00 ,  G02B27/01

Abstract: A display system aligns the location of its exit pupil with the location of a viewer's pupil by changing the location of the portion of a light source that outputs light. The light source may include an array of pixels that output light, thereby allowing an image to be displayed on the light source. The display system includes a camera that captures images of the eye and negatives of the images are displayed by the light source. In the negative image, the dark pupil of the eye is a bright spot which, when displayed by the light source, defines the exit pupil of the display system. The location of the pupil of the eye may be tracked by capturing the images of the eye, and the location of the exit pupil of the display system may be adjusted by displaying negatives of the captured images using the light source.

公开(公告)号：US10901311B2

公开(公告)日：2021-01-26

申请号：US16737728

申请日：2020-01-08

Applicant: Magic Leap, Inc.

Inventor： Jahja Trisnadi ,  Pierre St. Hilaire ,  Hui-Chuan Cheng ,  Clinton Carlisle ,  Michael Anthony Klug ,  Kevin Richard Curtis

IPC: G03B21/20 ,  G02B27/10 ,  G02B27/09 ,  G03B21/00 ,  G06K9/00 ,  G02B27/01 ,  G02B26/10

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.

公开(公告)号：US10755481B2

公开(公告)日：2020-08-25

申请号：US15980947

申请日：2018-05-16

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 ,  G02B26/08 ,  G02B27/01 ,  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：US10466394B2

公开(公告)日：2019-11-05

申请号：US15880404

申请日：2018-01-25

Applicant: Magic Leap, Inc.

Inventor： Dianmin Lin ,  Michael Anthony Klug ,  Pierre St. Hilaire ,  Mauro Melli ,  Christophe Peroz ,  Evgeni Poliakov

IPC: G02B5/18 ,  F21V8/00 ,  G02B27/01

Abstract: Metasurfaces provide compact optical elements in head-mounted display systems to, e.g., incouple light into or outcouple light out of a waveguide. The metasurfaces may be formed by a plurality of repeating unit cells, each unit cell comprising two sets or more of nanobeams elongated in crossing directions: one or more first nanobeams elongated in a first direction and a plurality of second nanobeams elongated in a second direction. As seen in a top-down view, the first direction may be along a y-axis, and the second direction may be along an x-axis. The unit cells may have a periodicity in the range of 10 nm to 1 μm, including 10 nm to 500 nm or 300 nm to 500 nm. Advantageously, the metasurfaces provide diffraction of light with high diffraction angles and high diffraction efficiencies over a broad range of incident angles and for incident light with circular polarization.

公开(公告)号：US20190227211A1

公开(公告)日：2019-07-25

申请号：US16369890

申请日：2019-03-29

Applicant: Magic Leap, Inc.

Inventor： Michael Anthony Klug ,  Brian T. Schowengerdt ,  Michael Nevin Miller ,  Vikramjit Singh ,  Christophe Peroz ,  Pierre St. Hilaire ,  Jie Sun

IPC: G02B5/30 ,  G02B27/01 ,  G02B26/10 ,  G02B1/00 ,  F21V8/00 ,  G02B27/10 ,  G02B27/00 ,  G02B27/28 ,  G02B27/42 ,  G02B5/18

Abstract: Architectures are provided for selectively incoupling one or more streams of light from a multiplexed light stream into a waveguide. The multiplexed light stream can have light with different characteristics (e.g., different wavelengths and/or different polarizations). The waveguide can comprise in-coupling elements that can selectively couple one or more streams of light from the multiplexed light stream into the waveguide while transmitting one or more other streams of light from the multiplexed light stream.

公开(公告)号：US20190111642A1

公开(公告)日：2019-04-18

申请号：US16163350

申请日：2018-10-17

Applicant: Magic Leap, Inc.

Inventor： Chieh Chang ,  Christophe Peroz ,  Sharad D. Bhagat ,  Roy Matthew Patterson ,  Michael Anthony Klug ,  Charles Scott Carden

IPC: B29D11/00 ,  B29C39/02 ,  B29C39/38 ,  B29C39/26 ,  B29C35/08

Abstract: An example system for molding a photocurable material into a planar object includes a first mold structure having a first mold surface, a second mold structure having a second mold surface, and one or more protrusions disposed along at least one of the first mold surface or the second mold surface. During operation, the system is configured to position the first and second mold structures such that the first and second mold surfaces face each other with the one or more protrusions contacting the opposite mold surface, and a volume having a total thickness variation (TTV) of 500 nm or less is defined between the first and second mold surfaces. The system is further configured to receive the photocurable material in the volume, and direct radiation at the one or more wavelengths into the volume.

公开(公告)号：US20180356639A1

公开(公告)日：2018-12-13

申请号：US16006080

申请日：2018-06-12

Applicant: Magic Leap, Inc.

Inventor： Jason Schaefer ,  Hui-Chuan Cheng ,  David Manly ,  Jahja I. Trisnadi ,  Clinton Carlisle ,  Michael Anthony Klug

IPC: G02B27/01 ,  G02F1/29 ,  G02F1/13 ,  G02F1/01

CPC classification number: G02B27/0172 ,  G02F1/0136 ,  G02F1/1326 ,  G02F1/29 ,  G02F2001/294

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. The at least one processor is configured to cause the first and second adaptive lens assemblies to synchronously switch between different states in a manner such that the first and second adaptive lens assemblies impart a substantially constant net optical power to ambient light from the environment passing therethrough.

公开(公告)号：US20180164645A1

公开(公告)日：2018-06-14

申请号：US15841037

申请日：2017-12-13

Applicant: Magic Leap, Inc.

Inventor： Chulwoo Oh ,  Chieh Chang ,  Sharad Bhagat ,  Michael Anthony Klug

IPC: G02F1/1337 ,  G02F1/1333 ,  B32B43/00

Abstract: Soft-imprint alignment processes for patterning liquid crystal polymer layers via contact with a reusable alignment template are described herein. An example soft-imprint alignment process includes contacting a liquid crystal polymer layer with a reusable alignment template that has a desired surface alignment pattern such that the liquid crystal molecules of the liquid crystal polymer are aligned to the surface alignment pattern via chemical, steric, or other intermolecular interaction. The patterned liquid crystal polymer layer may then be polymerized and separated from the reusable alignment template. The process can be repeated many times. The reusable alignment template may include a photo-alignment layer that does not comprise surface relief structures that correspond to the surface alignment pattern and a release layer above this photo-alignment layer. A reusable alignment template and methods of fabricating the same are also disclosed.

公开(公告)号：US12228738B2

公开(公告)日：2025-02-18

申请号：US18354575

申请日：2023-07-18

Applicant: Magic Leap, Inc.

Inventor： Michael Anthony Klug ,  Adrian Kaehler

IPC: G02B27/01 ,  A61B3/10 ,  A61B3/113 ,  A61B3/12 ,  A61B3/14 ,  A61B5/00 ,  A61B5/11 ,  A61B5/16 ,  G02B27/00 ,  A61B5/117

Abstract: Examples of an imaging system for use with a head mounted display (HMD) are disclosed. The imaging system can include a forward-facing imaging camera and a surface of a display of the HMD can include an off-axis diffractive optical element (DOE) or hot mirror configured to reflect light to the imaging camera. The DOE or hot mirror can be segmented. The imaging system can be used for eye tracking, biometric identification, multiscopic reconstruction of the three-dimensional shape of the eye, etc.

公开(公告)号：US12216311B2

公开(公告)日：2025-02-04

申请号：US18348909

申请日：2023-07-07

Applicant: Magic Leap, Inc.

Inventor： Michael Anthony Klug ,  Robert Dale Tekolste ,  William Hudson Welch ,  Eric Browy ,  Victor Kai Liu ,  Samarth Bhargava

IPC: G02B6/02 ,  G02B6/122 ,  G02B27/01 ,  G06T19/00

Abstract: An eyepiece for an augmented reality display system. The eyepiece can include a waveguide substrate. The waveguide substrate can include an input coupler grating (ICG), an orthogonal pupil expander (OPE) grating, a spreader grating, and an exit pupil expander (EPE) grating. The ICG can couple at least one input light beam into at least a first guided light beam that propagates inside the waveguide substrate. The OPE grating can divide the first guided light beam into a plurality of parallel, spaced-apart light beams. The spreader grating can receive the light beams from the OPE grating and spread their distribution. The spreader grating can include diffractive features oriented at approximately 90° to diffractive features of the OPE grating. The EPE grating can re-direct the light beams from the first OPE grating and the first spreader grating such that they exit the waveguide substrate.