公开(公告)号：US12235480B2

公开(公告)日：2025-02-25

申请号：US18440180

申请日：2024-02-13

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：US12072596B2

公开(公告)日：2024-08-27

申请号：US17988598

申请日：2022-11-16

Applicant: Magic Leap, Inc.

Inventor： Chulwoo Oh ,  Ravi Kumar Komanduri ,  Gary Sharp

IPC: G02F1/1337 ,  G02B27/01 ,  G02B30/34 ,  G02F1/01 ,  G02F1/13 ,  G02F1/1343 ,  G02F1/137

CPC classification number: G02F1/137 ,  G02B27/0172 ,  G02B30/34 ,  G02F1/0136 ,  G02F1/1326 ,  G02B2027/0134

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 thereon. The switchable waveplate comprises first and second surfaces and a liquid crystal layer disposed between the first and second surfaces. The first liquid crystal layer comprises a plurality of liquid crystal molecules. Said first and second surfaces may be curved. Said plurality of liquid crystal molecules may vary in tilt with respect to said first and second surfaces with outward radial distance from an axis through said first and second surfaces and said liquid crystal layer in a plurality of radial directions. The switchable waveplate additionally comprises a first plurality of electrodes to apply an electrical signal across said first liquid crystal layer.

公开(公告)号：US12055721B2

公开(公告)日：2024-08-06

申请号：US17437744

申请日：2020-03-19

Applicant: Magic Leap, Inc.

Inventor： Chulwoo Oh ,  Ravi Kumar Komanduri

IPC: G02B27/01 ,  G06F3/01

CPC classification number: G02B27/0172 ,  G06F3/013 ,  G02B2027/0123 ,  G02B2027/0138

Abstract: A thin transparent layer can be integrated in a head mounted display device and disposed in front of the eye of a wearer. The thin transparent layer may be configured to output light such that light is directed onto the eye to create reflections therefrom that can be used, for example, for glint based tracking. The thin transparent layer can be configured to reduced obstructions in the field of the view of the user.

公开(公告)号：US12013537B2

公开(公告)日：2024-06-18

申请号：US17370882

申请日：2021-07-08

Applicant: Magic Leap, Inc.

Inventor： Ravi Kumar Komanduri ,  Lionel Ernest Edwin ,  Chulwoo Oh

IPC: G09G5/00 ,  G02B5/30 ,  G02B27/01 ,  G02B27/42 ,  G06T19/00 ,  H04N13/279 ,  H04N13/344

CPC classification number: G02B27/0172 ,  G02B5/3083 ,  G02B27/4261 ,  G02B27/4272 ,  G06T19/006 ,  H04N13/279 ,  H04N13/344 ,  G02B2027/0118 ,  G02B2027/0127 ,  G02B2027/0138 ,  G02B2027/014

Abstract: Techniques for operating an optical system are disclosed. World light may be linearly polarized along a first axis. When the optical system is operating in accordance with a first state, a polarization of the world light may be rotated by 90 degrees, the world light may be linearly polarized along a second axis perpendicular to the first axis, and zero net optical power may be applied to the world light. When the optical system is operating in accordance with a second state, virtual image light may be projected onto an eyepiece of the optical system, the world light and the virtual image light may be linearly polarized along the second axis, a polarization of the virtual image light may be rotated by 90 degrees, and non-zero net optical power may be applied to the virtual image light.

公开(公告)号：US11994706B2

公开(公告)日：2024-05-28

申请号：US17320060

申请日：2021-05-13

Applicant: Magic Leap, Inc.

Inventor： Chulwoo Oh ,  Ravi Kumar Komanduri ,  Vikramjit Singh ,  Shuqiang Yang ,  Frank Y. Xu

IPC: G02B6/26 ,  F21V8/00 ,  G02B25/00 ,  G02B27/01

CPC classification number: G02B6/0033 ,  G02B25/001 ,  G02B27/0172 ,  G02B6/262

Abstract: An eyepiece waveguide includes a set of waveguide layers having a world side and a user side. The eyepiece waveguide also includes a first cover plate having a first optical power and disposed adjacent the world side of the set of waveguide layers and a second cover plate having a second optical power and disposed adjacent the user side of the set of waveguide layers.

公开(公告)号：US11977236B2

公开(公告)日：2024-05-07

申请号：US18301785

申请日：2023-04-17

Applicant: Magic Leap, Inc.

Inventor： Ravi Kumar Komanduri ,  Chulwoo Oh

IPC: G09G5/00 ,  C12Q1/6844 ,  G02B27/01 ,  G06T19/00 ,  G02F1/1335 ,  G02F1/13363

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. 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：US20240085630A1

公开(公告)日：2024-03-14

申请号：US18513308

申请日：2023-11-17

Applicant: Magic Leap, Inc.

Inventor： Chulwoo Oh ,  Ravi Kumar Komanduri ,  Vikramjit Singh ,  Shuqiang Yang ,  Frank Y. Xu

IPC: G02B6/26 ,  G02B25/00

CPC classification number: G02B6/262 ,  G02B25/001

Abstract: A method of fabricating an optical element includes providing a substrate, forming a castable material coupled to the substrate, and casting the castable material using a mold. The method also includes curing the castable material and removing the mold. The optical element comprises a planar region and a clear aperture adjacent the planar region and characterized by an optical power.

公开(公告)号：US11921290B2

公开(公告)日：2024-03-05

申请号：US17145181

申请日：2021-01-08

Applicant: Magic Leap, Inc.

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

IPC: G02B27/01 ,  F21V8/00 ,  G02F1/29

CPC classification number: G02B27/0172 ,  G02B6/0076 ,  G02F1/29 ,  G02B2027/0112 ,  G02F1/294

Abstract: A display device includes a waveguide assembly comprising a waveguide configured to outcouple light out of a major surface of the waveguide to form an image in the eyes of a user. An adaptive lens assembly has a major surface facing the output surface and a waveplate lens and a switchable waveplate assembly. The switchable waveplate assembly includes quarter-wave plates on opposing sides of a switchable liquid crystal layer, and electrodes on the quarter-wave plates in the volume between the quarter-wave plates. The electrodes can selectively establish an electric field and may serve as an alignment structure for molecules of the liquid crystal layer. Portions of the adaptive lens assembly may be manufactured by roll-to-roll processing in which a substrate roll is unwound, and alignment layers and liquid crystal layers are formed on the substrate as it moves towards a second roller, to be wound on that second roller.

公开(公告)号：US20230393398A1

公开(公告)日：2023-12-07

申请号：US17437744

申请日：2020-03-19

Applicant: Magic Leap, Inc.

Inventor： Chulwoo Oh ,  Ravi Kumar Komanduri

IPC: G02B27/01

CPC classification number: G02B27/0172 ,  G02B2027/0138

Abstract: A thin transparent layer can be integrated in a head mounted display device and disposed in front of the eye of a wearer. The thin transparent layer may be configured to output light such that light is directed onto the eye to create reflections therefrom that can be used, for example, for glint based tracking. The thin transparent layer can be configured to reduced obstructions in the field of the view of the user.

公开(公告)号：US20210132394A1

公开(公告)日：2021-05-06

申请号：US17145181

申请日：2021-01-08

Applicant: Magic Leap, Inc.

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

IPC: G02B27/01 ,  G02F1/29 ,  F21V8/00

Abstract: A display device includes a waveguide assembly comprising a waveguide configured to outcouple light out of a major surface of the waveguide to form an image in the eyes of a user. An adaptive lens assembly has a major surface facing the output surface and a waveplate lens and a switchable waveplate assembly. The switchable waveplate assembly includes quarter-wave plates on opposing sides of a switchable liquid crystal layer, and electrodes on the quarter-wave plates in the volume between the quarter-wave plates. The electrodes can selectively establish an electric field and may serve as an alignment structure for molecules of the liquid crystal layer. Portions of the adaptive lens assembly may be manufactured by roll-to-roll processing in which a substrate roll is unwound, and alignment layers and liquid crystal layers are formed on the substrate as it moves towards a second roller, to be wound on that second roller.