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41.发明申请公开(公告)号：US20210364806A1
公开(公告)日：2021-11-25
申请号：US17392713
申请日：2021-08-03
Applicant: Magic Leap, Inc.
Inventor： Fahri Yaras , Eric C. Browy , Victor Kai Liu , Samarth Bhargava , Vikramjit Singh , Michal Beau Dennison Vaughn , Joseph Christopher Sawicki
Abstract: An eyepiece for a head-mounted display includes one or more first waveguides arranged to receive light from a spatial light modulator at a first edge, guide at least some of the received light to a second edge opposite the first edge, and extract at least some of the light through a face of the one or more first waveguides between the first and second edges. The eyepiece also includes a second waveguide positioned to receive light exiting the one or more first waveguides at the second edge and guide the received light to one or more light absorbers.
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公开(公告)号：US20210294103A1
公开(公告)日：2021-09-23
申请号：US16979486
申请日：2019-03-12
Applicant: Magic Leap, Inc.
Inventor： Michael Anthony Klug , Kevin Richard Curtis , Vikramjit Singh , Kang Luo , Michal Beau Dennison Vaughn , Samarth Bhargava , Shuqiang Yang , Michael Nevin Miller , Frank Y. Xu , Kevin Messer , Robert Dale Tekolste
Abstract: Very high refractive index (n>2.2) lightguide substrates enable the production of 70° field of view eyepieces with all three color primaries in a single eyepiece layer. Disclosed herein are viewing optics assembly architectures that make use of such eyepieces to reduce size and cost, simplifying manufacturing and assembly, and better-accommodating novel microdisplay designs.
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公开(公告)号：US11022753B2
公开(公告)日：2021-06-01
申请号：US16792083
申请日：2020-02-14
Applicant: Magic Leap, Inc.
Inventor： Samarth Bhargava , Christophe Peroz , Victor Kai Liu
Abstract: A plurality of waveguide display substrates, each waveguide display substrate having a cylindrical portion having a diameter and a planar surface, a curved portion opposite the planar surface defining a nonlinear change in thickness across the substrate and having a maximum height D with respect to the cylindrical portion, and a wedge portion between the cylindrical portion and the curved portion defining a linear change in thickness across the substrate and having a maximum height W with respect to the cylindrical portion. A target maximum height Dt of the curved portion is 10−7 to 10−6 times the diameter, D is between about 70% and about 130% of Dt, and W is less than about 30% of Dt.
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公开(公告)号：US20210041704A1
公开(公告)日：2021-02-11
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：US10451799B2
公开(公告)日：2019-10-22
申请号：US15877117
申请日：2018-01-22
Applicant: Magic Leap, Inc.
Inventor： Michael Anthony Klug , Robert Dale Tekolste , William Hudson Welch , Eric Browy , Victor Kai Liu , Samarth Bhargava
Abstract: An eyepiece waveguide for an augmented reality. The eyepiece waveguide can include a transparent substrate with an input coupler region, first and second orthogonal pupil expander (OPE) regions, and an exit pupil expander (EPE) region. The input coupler region can be positioned between the first and second OPE regions and can divide and re-direct an input light beam that is externally incident on the input coupler region into first and second guided light beams that propagate inside the substrate, with the first guided beam being directed toward the first OPE region and the second guided beam being directed toward the second OPE region. The first and second OPE regions can respectively divide the first and second guided beams into a plurality of replicated, spaced-apart beams. The EPE region can re-direct the replicated beams from both the first and second OPE regions such that they exit the substrate.
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Patent Agency Ranking
公开(公告)号：US20190187474A1
公开(公告)日：2019-06-20
申请号：US16221359
申请日：2018-12-14
Applicant: Magic Leap, Inc.
Inventor： Samarth Bhargava , Victor Kai Liu , Kevin Messer
CPC classification number: G02B27/0172 , G02B27/0944 , G02B27/0955 , G02B2027/0178 , G06K9/00671
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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47.发明申请公开(公告)号：US20190094551A1
公开(公告)日：2019-03-28
申请号：US16144656
申请日：2018-09-27
Applicant: Magic Leap, Inc.
Inventor： Fahri Yaras , Eric C. Browy , Victor Kai Liu , Samarth Bhargava , Vikramjit Singh , Michal Beau Dennison Vaughn , Joseph Christopher Sawicki
Abstract: An eyepiece for a head-mounted display includes one or more first waveguides arranged to receive light from a spatial light modulator at a first edge, guide at least some of the received light to a second edge opposite the first edge, and extract at least some of the light through a face of the one or more first waveguides between the first and second edges. The eyepiece also includes a second waveguide positioned to receive light exiting the one or more first waveguides at the second edge and guide the received light to one or more light absorbers.
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48.发明申请公开(公告)号：US20250028115A1
公开(公告)日：2025-01-23
申请号：US18907129
申请日：2024-10-04
Applicant: Magic Leap, Inc.
Inventor： Robert D. Tekolste , Ryan Jason Ong , Victor Kai Liu , Samarth Bhargava , Christophe Peroz , Vikramjit Singh , Marlon Edward Menezes , Shuqiang Yang , Frank Y. Xu
Abstract: An augmented reality device includes a projector, projector optics optically coupled to the projector, and a substrate structure including a substrate having an incident surface and an opposing exit surface and a first variable thickness film coupled to the incident surface. The substrate structure can also include a first combined pupil expander coupled to the first variable thickness film, a second variable thickness film coupled to the opposing exit surface, an incoupling grating coupled to the opposing exit surface, and a second combined pupil expander coupled to the opposing exit surface.
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公开(公告)号：US20240418928A1
公开(公告)日：2024-12-19
申请号：US18729437
申请日：2023-01-20
Applicant: Magic Leap, Inc.
Inventor： Matthew C Traub , Yingnan Liu , Vikramjit Singh , Frank Y. Xu , Robert D. Tekolste , Qizhen Xue , Samarth Bhargava , Victor Kai Liu , Brandon Michael-James Born , Kevin Messer
Abstract: The disclosure describes an improved drop-on-demand, controlled volume technique for dispensing resist onto a substrate, which is then imprinted to create a patterned optical device suitable for use in optical applications such as augmented reality and/or mixed reality systems. The technique enables the dispensation of drops of resist at precise locations on the substrate, with precisely controlled drop volume corresponding to an imprint template having different zones associated with different total resist volumes. Controlled drop size and placement also provides for substantially less variation in residual layer thickness across the surface of the substrate after imprinting, compared to previously available techniques. The technique employs resist having a refractive index closer to that of the substrate index, reducing optical artifacts in the device. To ensure reliable dispensing of the higher index and higher viscosity resist in smaller drop sizes, the dispensing system can continuously circulate the resist.
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50.发明公开公开(公告)号：US20240302663A1
公开(公告)日：2024-09-12
申请号：US18666474
申请日：2024-05-16
Applicant: Magic Leap, Inc.
Inventor： Fahri YARAS , Eric C. Browy , Victor Kai Liu , Samarth Bhargava , Vikramjit Singh , Michal Beau Dennison Vaughn , Joseph Christopher Sawicki
CPC classification number: G02B27/0172 , G02B6/29328 , G02B6/34 , G02B6/3534 , G02B27/42 , G02B30/50 , G02B2006/12107 , G02B2027/012
Abstract: An eyepiece for a head-mounted display includes one or more first waveguides arranged to receive light from a spatial light modulator at a first edge, guide at least some of the received light to a second edge opposite the first edge, and extract at least some of the light through a face of the one or more first waveguides between the first and second edges. The eyepiece also includes a second waveguide positioned to receive light exiting the one or more first waveguides at the second edge and guide the received light to one or more light absorbers.
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