公开(公告)号：US20240369892A1

公开(公告)日：2024-11-07

申请号：US18774038

申请日：2024-07-16

Applicant: Magic Leap, Inc.

Inventor： Chulwoo OH ,  Ravi Kumar KOMANDURI ,  Gary SHARP

IPC: G02F1/137 ,  G02B27/01 ,  G02B30/34 ,  G02F1/01 ,  G02F1/13

Abstract: A switchable optical assembly comprises a switchable waveplate configured to be electrically activated and deactivated to selectively alter the polarization state of light incident on the switchable waveplate. The switchable waveplate comprises first and second surfaces and a liquid crystal layer disposed between the first and second surfaces. The liquid crystal layer comprises a plurality of liquid crystal molecules. The first surface and/or the second surface may be planar. The first surface and/or the second surface may be curved. The plurality of liquid crystal molecules may vary in tilt with respect to the first and second surfaces with outward radial distance from an axis through the first and second surfaces and the liquid crystal layer in a plurality of radial directions. The switchable waveplate can include a plurality of electrodes to apply an electrical signal across the liquid crystal layer.

公开(公告)号：US20250147214A1

公开(公告)日：2025-05-08

申请号：US19016085

申请日：2025-01-10

Applicant: Magic Leap, Inc.

Inventor： Chulwoo OH ,  Ravi Kumar KOMANDURI ,  David KLEINMAN ,  Vaibhav MATHUR ,  David MANLY

IPC: G02B5/30 ,  F21V8/00 ,  G02B5/08 ,  G02B27/01 ,  G02F1/1335

Abstract: In some implementations, an optical device includes a one-way mirror formed by a polarization selective mirror and an absorptive polarizer. The absorptive polarizer has a transmission axis aligned with the transmission axis of the reflective polarizer. The one-way mirror may be provided on the world side of a head-mounted display system. Advantageously, the one-way mirror may reflect light from the world, which provides privacy and may improve the cosmetics of the display. In some implementations, the one-way mirror may include one or more of a depolarizer and a pair of opposing waveplates to improve alignment tolerances and reduce reflections to a viewer. In some implementations, the one-way mirror may form a compact integrated structure with a dimmer for reducing light transmitted to the viewer from the world.

公开(公告)号：US20210141229A1

公开(公告)日：2021-05-13

申请号：US17096557

申请日：2020-11-12

Applicant: MAGIC LEAP, INC.

Inventor： Vaibhav MATHUR ,  Joshua Naaman HADDOCK ,  Ted DIEHL ,  Chulwoo OH ,  Clinton CARLISLE

IPC: G02B27/01 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/13363 ,  G02F1/1343 ,  F21V8/00 ,  G02F1/1368

Abstract: Techniques are described for operating an optical system. In some embodiments, light associated with a world object is received at the optical system. Virtual image light is projected onto an eyepiece of the optical system. A portion of a system field of view of the optical system to be at least partially dimmed is determined based on information detected by the optical system. A plurality of spatially-resolved dimming values for the portion of the system field of view may be determined based on the detected information. The detected information may include light information, gaze information, and/or image information. A dimmer of the optical system may be adjusted to reduce an intensity of light associated with the world object in the portion of the system field of view according to the plurality of dimming values.

公开(公告)号：US20250123513A1

公开(公告)日：2025-04-17

申请号：US18999315

申请日：2024-12-23

Applicant: Magic Leap, Inc.

Inventor： Chulwoo OH

IPC: G02F1/1335 ,  G02B5/18 ,  G02B5/30 ,  G02B6/34 ,  G02B27/01 ,  G02B27/42

Abstract: The present disclosure relates to display systems and, more particularly, to augmented reality display systems including diffraction grating(s), and methods of fabricating same. A diffraction grating includes a plurality of different diffracting zones having a periodically repeating lateral dimension corresponding to a grating period adapted for light diffraction. The diffraction grating additionally includes a plurality of different liquid crystal layers corresponding to the different diffracting zones. The different liquid crystal layers include liquid crystal molecules that are aligned differently, such that the different diffracting zones have different optical properties associated with light diffraction.

公开(公告)号：US20240280851A1

公开(公告)日：2024-08-22

申请号：US18651052

申请日：2024-04-30

Applicant: Magic Leap, Inc.

Inventor： Chulwoo OH

IPC: G02F1/1335 ,  G02B5/18 ,  G02B5/30 ,  G02B6/34 ,  G02B27/01 ,  G02B27/42

CPC classification number: G02F1/133504 ,  G02B5/1833 ,  G02B5/1847 ,  G02B27/0172 ,  G02B27/4205 ,  G02B27/4272 ,  G02F1/133524 ,  G02B5/3058 ,  G02B6/34 ,  G02B2027/0178

Abstract: The present disclosure relates to display systems and, more particularly, to augmented reality display systems including diffraction grating(s), and methods of fabricating same. A diffraction grating includes a plurality of different diffracting zones having a periodically repeating lateral dimension corresponding to a grating period adapted for light diffraction. The diffraction grating additionally includes a plurality of different liquid crystal layers corresponding to the different diffracting zones. The different liquid crystal layers include liquid crystal molecules that are aligned differently, such that the different diffracting zones have different optical properties associated with light diffraction.

公开(公告)号：US20230296945A1

公开(公告)日：2023-09-21

申请号：US18323531

申请日：2023-05-25

Applicant: Magic Leap, Inc.

Inventor： Chulwoo OH ,  Mauro MELLI ,  Christophe PEROZ ,  Vikramjit SINGH ,  Frank Y. XU ,  Michael Anthony KLUG

IPC: G02F1/1347 ,  G02F1/29 ,  G02B5/18

CPC classification number: G02F1/1347 ,  G02F1/29 ,  G02B5/1809 ,  G02B5/1847 ,  G02B2006/0098

Abstract: An optical device includes a liquid crystal layer having a first plurality of liquid crystal molecules arranged in a first pattern and a second plurality of liquid crystal molecules arranged in a second pattern. The first and the second pattern are separated from each other by a distance of about 20 nm to about 100 nm along a longitudinal or a transverse axis of the liquid crystal layer. The first and the second plurality of liquid crystal molecules are configured as first and second grating structures that can redirect light of visible or infrared wavelengths.

公开(公告)号：US20230118979A1

公开(公告)日：2023-04-20

申请号：US18067873

申请日：2022-12-19

Applicant: MAGIC LEAP, INC.

Inventor： Vaibhav MATHUR ,  Joshua Naaman HADDOCK ,  Ted DIEHL ,  Chulwoo OH ,  Clinton CARLISLE

IPC: G02B27/01 ,  G02F1/1335 ,  G02F1/13363 ,  G02F1/1343 ,  G02F1/1368 ,  G02F1/1333

Abstract: Techniques are described for operating an optical system. In some embodiments, light associated with a world object is received at the optical system. Virtual image light is projected onto an eyepiece of the optical system. A portion of a system field of view of the optical system to be at least partially dimmed is determined based on information detected by the optical system. A plurality of spatially-resolved dimming values for the portion of the system field of view may be determined based on the detected information. The detected information may include light information, gaze information, and/or image information. A dimmer of the optical system may be adjusted to reduce an intensity of light associated with the world object in the portion of the system field of view according to the plurality of dimming values.

公开(公告)号：US20180120559A1

公开(公告)日：2018-05-03

申请号：US15796669

申请日：2017-10-27

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 ,  G02B26/10 ,  G02B27/10 ,  G02B5/18 ,  G02B5/30

CPC classification number: G02B26/123 ,  G02B5/18 ,  G02B5/1842 ,  G02B5/3083 ,  G02B6/0011 ,  G02B26/0833 ,  G02B26/103 ,  G02B26/105 ,  G02B26/129 ,  G02B27/0172 ,  G02B27/1026 ,  G02B27/286 ,  G02B2027/0123

Abstract: An image display system includes an optical subsystem configured to emit a first light beam and a second light beam, wherein the first light beam illuminates a first portion of a composite field of view and the second beam illuminates a second portion of the composite field of view. A scanning mirror is positioned to intercept and reflect the first light beam and the second light beam. The system also has a waveguide with at least one input coupling optical element for receiving the first light beam and the second light beam into the waveguide. The waveguide also has an output coupling optical element for projecting a plurality of output light beams derived from the first light beam and the second light beam from the waveguide to illuminate the composite field of view.

公开(公告)号：US20240329492A1

公开(公告)日：2024-10-03

申请号：US18738024

申请日：2024-06-09

Applicant: Magic Leap, Inc.

Inventor： Chulwoo OH

IPC: G02F1/365 ,  G02B3/00 ,  G02F1/00 ,  G02F1/1335

CPC classification number: G02F1/365 ,  G02B3/00 ,  G02F1/0045 ,  G02F1/133528 ,  G02F1/133541 ,  G02F2201/30 ,  G02F2201/305 ,  G02F2201/307

Abstract: A two-dimensional waveguide light multiplexer can efficiently multiplex and distribute a light signal in two dimensions. An example of a two-dimensional waveguide light multiplexer can include a waveguide, a first diffraction grating, and a second diffraction grating arranged such that the grating direction of the first diffraction grating is perpendicular to the grating direction of the second diffraction grating. In some examples, the first and second diffraction gratings are on opposite sides of a waveguide. In some examples, the first and second diffraction gratings are on a same side of a waveguide, with the second grating over the first grating.

公开(公告)号：US20240302659A1

公开(公告)日：2024-09-12

申请号：US18661321

申请日：2024-05-10

Applicant: Magic Leap, Inc.

Inventor： Hui-Chuan CHENG ,  Hyunsun CHUNG ,  Jahja I. TRISNADI ,  Clinton CARLISLE ,  Chulwoo OH ,  Kevin Richard CURTIS

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