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公开(公告)号：US20240231111A1
公开(公告)日：2024-07-11
申请号：US18618091
申请日：2024-03-27
Applicant: Magic Leap, Inc.
Inventor： Samarth Bhargava , Victor Kai Liu , Kevin Messer
CPC classification number: G02B27/0172 , G02B27/0944 , G02B27/0955 , G06V20/20 , G02B2027/0178
Abstract: An eyepiece waveguide for an augmented reality display system may include an optically transmissive substrate, an input coupling grating (ICG) region, a multi-directional pupil expander (MPE) region, and an exit pupil expander (EPE) region. The ICG region may receive an input beam of light and couple the input beam into the substrate as a guided beam. The MPE region may include a plurality of diffractive features which exhibit periodicity along at least a first axis of periodicity and a second axis of periodicity. The MPE region may be positioned to receive the guided beam from the ICG region and to diffract it in a plurality of directions to create a plurality of diffracted beams. The EPE region may overlap the MPE region and may out couple one or more of the diffracted beams from the optically transmissive substrate as output beams.
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公开(公告)号：US20240036321A1
公开(公告)日：2024-02-01
申请号：US18257516
申请日：2021-12-21
Applicant: Magic Leap, Inc.
Inventor： Ling Li , Christophe Peroz , Chieh Chang , Sharad D. Bhagat , Ryan Jason Ong , Ali Karbasi , Stephen Richard Rugg , Mauro Melli , Kevin Messer , Brian George Hill , Melanie Maputol West
CPC classification number: G02B27/0172 , G02B27/0176 , G02B6/0076
Abstract: In some embodiments, a near-eye, near-eye display system comprises a stack of waveguides having pillars in a central, active portion of the waveguides. The active portion may include light outcoupling optical elements configured to outcouple image light from the waveguides towards the eye of a viewer. The pillars extend between and separate neighboring ones of the waveguides. The light outcoupling optical elements may include diffractive optical elements that are formed simultaneously with the pillars, for example, by imprinting or casting. The pillars are disposed on one or more major surfaces of each of the waveguides. The pillars may define a distance between two adjacent waveguides of the stack of waveguides. The pillars may be bonded to adjacent waveguides may be using one or more of the systems, methods, or devices herein. The bonding provides a high level of thermal stability to the waveguide stack, to resist deformation as temperatures change.
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公开(公告)号：US11662586B2
公开(公告)日：2023-05-30
申请号：US17194086
申请日：2021-03-05
Applicant: Magic Leap, Inc.
Inventor： Kevin Messer , Joshua Naaman Haddock , Hui-Chuan Cheng , Vaibhav Mathur , Clinton Carlisle
IPC: G02B27/01 , G02B27/28 , G02F1/13363 , G02F1/1337 , G02F1/01 , G02F1/1335 , G02F1/1343 , G02F1/139 , G02B25/00
CPC classification number: G02B27/0172 , G02B25/001 , G02B27/281 , G02F1/0136 , G02F1/1393 , G02F1/133531 , G02F1/133631 , G02F1/133638 , G02F1/133749 , G02F1/133761 , G02F1/134309 , G02B2027/011 , G02B2027/0178 , G02F2413/01 , G02F2413/10
Abstract: A wearable display system includes an eyepiece stack having a world side and a user side opposite the world side. During use, a user positioned on the user side views displayed images delivered by the wearable display system via the eyepiece stack which augment the user's field of view of the user's environment. The system also includes an optical attenuator arranged on the world side of the of the eyepiece stack, the optical attenuator having a layer of a birefringent material having a plurality of domains each having a principal optic axis oriented in a corresponding direction different from the direction of other domains. Each domain of the optical attenuator reduces transmission of visible light incident on the optical attenuator for a corresponding different range of angles of incidence.
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公开(公告)号：US20220357581A1
公开(公告)日：2022-11-10
申请号：US17825932
申请日：2022-05-26
Applicant: Magic Leap, Inc.
Inventor： Samarth Bhargava , Victor Kai Liu , Kevin Messer
Abstract: An eyepiece waveguide for an augmented reality display system may include an optically transmissive substrate, an input coupling grating (ICG) region, a multi-directional pupil expander (MPE) region, and an exit pupil expander (EPE) region. The ICG region may receive an input beam of light and couple the input beam into the substrate as a guided beam. The MPE region may include a plurality of diffractive features which exhibit periodicity along at least a first axis of periodicity and a second axis of periodicity. The MPE region may be positioned to receive the guided beam from the ICG region and to diffract it in a plurality of directions to create a plurality of diffracted beams. The EPE region may overlap the MPE region and may out couple one or more of the diffracted beams from the optically transmissive substrate as output beams.
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公开(公告)号：US20220342214A1
公开(公告)日：2022-10-27
申请号：US17863218
申请日：2022-07-12
Applicant: Magic Leap, Inc.
Inventor： Kevin Richard Curtis , Samarth Bhargava , Bradley Jay Sissom , Victor Kai Liu , Chulwoo Oh , Ravi Kumar Komanduri , Kevin Messer
Abstract: Techniques for artifact mitigation in an optical system are disclosed. Light associated with a world object is received at the optical system, which is characterized by a world side and a user side. Light associated with a virtual image is projected onto an eyepiece of the optical system, causing a portion of the light associated with the virtual image to propagate toward the user side and light associated with an artifact image to propagate toward the world side. A dimmer of the optical system positioned between the world side and the eyepiece is adjusted to reduce an intensity of the light associated with the artifact image impinging on the dimmer and an intensity of the light associated with the world object impinging on the dimmer.
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Patent Agency Ranking
公开(公告)号：US11422364B2
公开(公告)日：2022-08-23
申请号：US16718017
申请日：2019-12-17
Applicant: Magic Leap, Inc.
Inventor： Kevin Richard Curtis , Samarth Bhargava , Bradley Jay Sissom , Victor Kai Liu , Chulwoo Oh , Ravi Kumar Komanduri , Kevin Messer
Abstract: Techniques for artifact mitigation in an optical system are disclosed. Light associated with a world object is received at the optical system, which is characterized by a world side and a user side. Light associated with a virtual image is projected onto an eyepiece of the optical system, causing a portion of the light associated with the virtual image to propagate toward the user side and light associated with an artifact image to propagate toward the world side. A dimmer of the optical system positioned between the world side and the eyepiece is adjusted to reduce an intensity of the light associated with the artifact image impinging on the dimmer and an intensity of the light associated with the world object impinging on the dimmer.
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公开(公告)号：US11347063B2
公开(公告)日：2022-05-31
申请号：US17079143
申请日：2020-10-23
Applicant: Magic Leap, Inc.
Inventor： Samarth Bhargava , Victor Kai Liu , Kevin Messer
Abstract: An eyepiece waveguide for an augmented reality display system may include an optically transmissive substrate, an input coupling grating (ICG) region, a multi-directional pupil expander (MPE) region, and an exit pupil expander (EPE) region. The ICG region may receive an input beam of light and couple the input beam into the substrate as a guided beam. The MPE region may include a plurality of diffractive features which exhibit periodicity along at least a first axis of periodicity and a second axis of periodicity. The MPE region may be positioned to receive the guided beam from the ICG region and to diffract it in a plurality of directions to create a plurality of diffracted beams. The EPE region may overlap the MPE region and may out couple one or more of the diffracted beams from the optically transmissive substrate as output beams.
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公开(公告)号：US11237393B2
公开(公告)日：2022-02-01
申请号：US16689645
申请日：2019-11-20
Applicant: Magic Leap, Inc.
Inventor： Samarth Bhargava , Victor Kai Liu , Kevin Messer
Abstract: An eyepiece waveguide for an augmented reality display system. The eyepiece waveguide can include an input coupling grating (ICG) region. The ICG region can couple an input beam into the substrate of the eyepiece waveguide as a guided beam. A first combined pupil expander-extractor (CPE) grating region can be formed on or in a surface of the substrate. The first CPE grating region can receive the guided beam, create a first plurality of diffracted beams at a plurality of distributed locations, and out-couple a first plurality of output beams. The eyepiece waveguide can also include a second CPE grating region formed on or in the opposite surface of the substrate. The second CPE grating region can receive the guided beam, create a second plurality of diffracted beams at a plurality of distributed locations, and out-couple a second plurality of output beams.
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公开(公告)号：US10852547B2
公开(公告)日：2020-12-01
申请号：US16221359
申请日：2018-12-14
Applicant: Magic Leap, Inc.
Inventor： Samarth Bhargava , Victor Kai Liu , Kevin Messer
Abstract: An eyepiece waveguide for an augmented reality display system may include an optically transmissive substrate, an input coupling grating (ICG) region, a multi-directional pupil expander (MPE) region, and an exit pupil expander (EPE) region. The ICG region may receive an input beam of light and couple the input beam into the substrate as a guided beam. The MPE region may include a plurality of diffractive features which exhibit periodicity along at least a first axis of periodicity and a second axis of periodicity. The MPE region may be positioned to receive the guided beam from the ICG region and to diffract it in a plurality of directions to create a plurality of diffracted beams. The EPE region may be positioned to receive one or more of the diffracted beams from the MPE region and to out couple them from the optically transmissive substrate as output beams.
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公开(公告)号：US20200159023A1
公开(公告)日：2020-05-21
申请号：US16689645
申请日：2019-11-20
Applicant: Magic Leap, Inc.
Inventor： Samarth Bhargava , Victor Kai Liu , Kevin Messer
Abstract: An eyepiece waveguide for an augmented reality display system. The eyepiece waveguide can include an input coupling grating (ICG) region. The ICG region can couple an input beam into the substrate of the eyepiece waveguide as a guided beam. A first combined pupil expander-extractor (CPE) grating region can be formed on or in a surface of the substrate. The first CPE grating region can receive the guided beam, create a first plurality of diffracted beams at a plurality of distributed locations, and out-couple a first plurality of output beams. The eyepiece waveguide can also include a second CPE grating region formed on or in the opposite surface of the substrate. The second CPE grating region can receive the guided beam, create a second plurality of diffracted beams at a plurality of distributed locations, and out-couple a second plurality of output beams.
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