公开(公告)号：US10895784B2

公开(公告)日：2021-01-19

申请号：US15841037

申请日：2017-12-13

Applicant: Magic Leap, Inc.

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

IPC: B32B43/00 ,  G02F1/1337 ,  G02B27/01 ,  C09K19/00 ,  G02F1/1333 ,  B32B38/10

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：US20180284460A1

公开(公告)日：2018-10-04

申请号：US15928015

申请日：2018-03-21

Applicant: Magic Leap, Inc.

Inventor： Hui-Chuan Cheng ,  Chulwoo Oh ,  Clinton Carlisle ,  Michael Anthony Klug ,  William Molteni

IPC: G02B27/09 ,  G02B27/10 ,  G02B27/01

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.

公开(公告)号：US12298517B2

公开(公告)日：2025-05-13

申请号：US18493429

申请日：2023-10-24

Applicant: Magic Leap, Inc.

Inventor： Asif Sinay ,  Barak Freedman ,  Michael Anthony Klug ,  Chulwoo Oh ,  Nizan Meitav

IPC: G02B27/01 ,  G02B27/00 ,  G02B27/28 ,  G06F3/01 ,  G06T19/00

Abstract: Head mounted display systems configured to project light to an eye of a user to display augmented reality image content in a vision field of the user are disclosed. In embodiments, the system includes a frame configured to be supported on a head of the user, an image projector configured to project images into the user's eye, a camera coupled to the frame, a waveguide optically coupled to the camera, an optical coupling optical element me, an out-coupling element configured to direct light emitted from the waveguide to the camera, and a first light source configured to direct light to the user's eye through the waveguide. Electronics control the camera to capture images periodically and farther control the first light source to pulse in time with the camera such that light emitted by the light source has a reduced intensity when the camera is not capturing images.

公开(公告)号：US12271089B2

公开(公告)日：2025-04-08

申请号：US18626181

申请日：2024-04-03

Applicant: Magic Leap, Inc.

Inventor： Chulwoo Oh

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

Abstract: Example display devices include a waveguide configured to propagate visible light under total internal reflection in a direction parallel to a major surface of the waveguide. The waveguide has formed thereon an outcoupling element configured to outcouple a portion of the visible light in a direction normal to the major surface of the waveguide. The example display devices additionally include a cholesteric liquid crystal (CLC) reflector disposed on a forward side of said waveguides, said CLC reflector configured to have an optical power or a depth of focus that is adjustable upon application of an electrical signal. The out-coupling element is disposed to extract light from the waveguide and direct at least a portion of said light propagating within said waveguide to the CLC reflector, said light being directed from said CLC reflector back through said waveguide and into said eye to present an image from the optical display into the eye of the wearer.

公开(公告)号：US12153209B2

公开(公告)日：2024-11-26

申请号：US17845396

申请日：2022-06-21

Applicant: Magic Leap, Inc.

Inventor： Ivan Li-Chuen Yeoh ,  Lionel Ernest Edwin ,  Barak Freedman ,  Vaibhav Mathur ,  Xiaoyang Zhang ,  Timothy Mark Dalrymple ,  Clinton Carlisle ,  Chulwoo Oh ,  Philip Premysler

IPC: G02B26/12 ,  F21V8/00 ,  G02B5/18 ,  G02B5/30 ,  G02B26/08 ,  G02B26/10 ,  G02B27/01 ,  G02B27/10 ,  G02B27/28

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.

公开(公告)号：US20240255796A1

公开(公告)日：2024-08-01

申请号：US18601808

申请日：2024-03-11

Applicant: Magic Leap, Inc.

Inventor： Chulwoo Oh ,  Ravi Kumar Komanduri ,  Roy Matthew Patterson ,  Charles Scott Carden ,  Michael Nevin Miller ,  Vikramjit Singh

IPC: G02F1/1335 ,  G02B1/00 ,  G02B5/18 ,  G02B5/30 ,  G02B6/12 ,  G02B6/122 ,  G02B27/01 ,  G02F1/1337 ,  G06T19/00 ,  G06V20/20 ,  G09G3/00 ,  G09G5/00 ,  G09G5/14

CPC classification number: G02F1/133526 ,  G02B1/00 ,  G02B5/1833 ,  G02B5/30 ,  G02B6/12 ,  G02B6/122 ,  G02B27/0172 ,  G02F1/133528 ,  G02F1/1337 ,  G06T19/006 ,  G06V20/20 ,  G09G3/002 ,  G09G3/003 ,  G09G5/00 ,  G09G5/14

Abstract: A display device comprises a waveguide configured to guide light in a lateral direction parallel to an output surface of the waveguide. The waveguide is further configured to outcouple the guided light through the output surface. The display device additionally comprises a broadband adaptive lens assembly configured to incouple and to diffract therethrough the outcoupled light from the waveguide. The broadband adaptive lens assembly comprises a first waveplate lens comprising a liquid crystal (LC) layer arranged such that the waveplate lens has birefringence (Δn) that varies in a radially outward direction from a central region of the first waveplate lens and configured to diffract the outcoupled light at a diffraction efficiency greater than 90% within a wavelength range including at least 450 nm to 630 nm. The broadband adaptive lens assembly is configured to be selectively switched between a plurality of states having different optical powers.

公开(公告)号：US20240248313A1

公开(公告)日：2024-07-25

申请号：US18624795

申请日：2024-04-02

Applicant: Magic Leap, Inc.

Inventor： Ravi Kumar Komanduri ,  Chulwoo Oh

IPC: G02B27/01 ,  C12Q1/6844 ,  G02F1/1335 ,  G02F1/13363 ,  G06T19/00

CPC classification number: G02B27/0172 ,  C12Q1/6844 ,  G06T19/006 ,  G02F1/133526 ,  G02F1/13363

Abstract: The present disclosure relates to display systems and, more particularly, to augmented reality display systems an related methods. In one aspect, an adaptive lens assembly includes a lens stack configured to exert polarization-dependent optical power to linearly polarized light. The lens stack includes a birefringent lens and an isotropic lens contacting each other to form a conformal interface therebetween. The adaptive lens assembly is configured to be selectively switched between a plurality of states having different optical powers.

公开(公告)号：US12038587B2

公开(公告)日：2024-07-16

申请号：US18160900

申请日：2023-01-27

Applicant: Magic Leap, Inc.

Inventor： Hui-Chuan Cheng ,  Hyunsun Chung ,  Jahja I. Trisnadi ,  Clinton Carlisle ,  Chulwoo Oh ,  Kevin Richard Curtis

IPC: G02B27/01 ,  F21V8/00 ,  G02B5/30 ,  G02B27/00 ,  G02B27/14 ,  G02B30/26 ,  G02F1/137 ,  G03B21/00 ,  G06F3/01 ,  G06T19/00 ,  G09G3/24 ,  G02B30/52 ,  G03B21/20 ,  G06F3/0482 ,  G06V20/20 ,  G09G3/02 ,  H04N13/00 ,  H04N13/239 ,  H04N13/279 ,  H04N13/344

CPC classification number: G02B27/0172 ,  G02B5/3016 ,  G02B6/0076 ,  G02B27/0093 ,  G02B27/0103 ,  G02B27/141 ,  G02B30/26 ,  G02F1/137 ,  G03B21/00 ,  G06F3/012 ,  G06T19/00 ,  G09G3/24 ,  G02B6/005 ,  G02B2027/0123 ,  G02B2027/0134 ,  G02B2027/0138 ,  G02B2027/014 ,  G02B2027/0174 ,  G02B27/0176 ,  G02B2027/0178 ,  G02B2027/0187 ,  G02B30/52 ,  G03B21/208 ,  G06F3/013 ,  G06F3/0482 ,  G06T19/006 ,  G06V20/20 ,  G09G3/025 ,  H04N2013/0081 ,  H04N13/239 ,  H04N13/279 ,  H04N13/344

Abstract: An optical device 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.

公开(公告)号：US20240126090A1

公开(公告)日：2024-04-18

申请号：US18493429

申请日：2023-10-24

Applicant: Magic Leap, Inc.

Inventor： Asif Sinay ,  Barak Freedman ,  Michael Anthony Klug ,  Chulwoo Oh ,  Nizan Meitav

IPC: G02B27/01 ,  G02B27/00 ,  G02B27/28 ,  G06F3/01 ,  G06T19/00

CPC classification number: G02B27/0172 ,  G02B27/0081 ,  G02B27/0093 ,  G02B27/283 ,  G06F3/013 ,  G06T19/006 ,  G02B2027/0125 ,  G02B2027/0138 ,  G02B2027/014 ,  G02B2027/0178 ,  G02B2027/0185

Abstract: Head mounted display systems configured to project light to an eye of a user to display augmented reality image content in a vision field of the user are disclosed. In embodiments, the system includes a frame configured to be supported on a head of the user, an image projector configured to project images into the user's eye, a camera coupled to the frame, a waveguide optically coupled to the camera, an optical coupling optical element me, an out-coupling element configured to direct light emitted from the waveguide to the camera, and a first light source configured to direct light to the user's eye through the waveguide. Electronics control the camera to capture images periodically and farther control the first light source to pulse in time with the camera such that light emitted by the light source has a reduced intensity when the camera is not capturing images.

公开(公告)号：US11941881B2

公开(公告)日：2024-03-26

申请号：US17320090

申请日：2021-05-13

Applicant: Magic Leap, Inc.

Inventor： Ravi Kumar Komanduri ,  Chulwoo Oh ,  Kevin Messer ,  Ioannis Papadopoulos

IPC: G06V20/20 ,  G02B27/01 ,  G06F18/10 ,  G06F18/21 ,  G06F18/22 ,  G06N20/00 ,  G06T3/00 ,  G06V20/62

CPC classification number: G06V20/20 ,  G02B27/0172 ,  G06F18/10 ,  G06F18/217 ,  G06F18/22 ,  G06N20/00 ,  G06T3/0093 ,  G06V20/62 ,  G02B2027/0114 ,  G02B2027/0134

Abstract: A pupil separation system includes an input surface, a central portion including a set of dichroic mirrors, a first reflective surface disposed laterally with respect to the central portion, and a second reflective surface disposed laterally with respect to the central portion. The pupil separation system also includes an exit face including a central surface operable to transmit light in a first wavelength range, a first peripheral surface adjacent the central surface and operable to transmit light in a second wavelength range, and a second peripheral surface adjacent the central surface and opposite to the first peripheral surface. The second peripheral surface is operable to transmit light in a third wavelength range.