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公开(公告)号：US20210311298A1
公开(公告)日：2021-10-07
申请号：US17262535
申请日：2019-07-22
Applicant: MAGIC LEAP, INC.
Inventor： Wendong Xing , Vikramjit Singh , Neal Paul Ricks , Jeffrey Dean Schmulen , Emory D. Carroll , K. Brent Binkley , Frank Y. Xu , Thomas Mercier , William Hudson Welch , Michael Anthony Klug
Abstract: Embodiments of the present disclosure are directed to an optical device, such as an eyepiece, including multiple layers of waveguides. The optical device can include an edge sealant for reducing light contamination, a lamination darn to restrict the wicking of the edge sealant between layers of the optical device, and venting gap (s) in the sealant and darn to allow air flow between the exterior and interior of the eyepiece. The gap(s) allow outgassing from the interior of the eyepiece of unreacted polymer and/or accumulated moisture, to prevent defect accumulation caused by chemical reaction of outgassed chemicals with the (e.g., ionic, acidic, etc.) surface of the eyepiece layers. The gap(s) also prevent pressure differences which may physically deform the eyepiece over time.
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32.发明授权公开(公告)号：US11067808B2
公开(公告)日：2021-07-20
申请号：US16520217
申请日：2019-07-23
Applicant: Magic Leap, Inc.
Inventor： Jeffrey Dean Schmulen , Neal Paul Ricks , Samarth Bhargava , Kevin Messer , Victor Kai Liu , Matthew Grant Dixon , Xiaopei Deng , Marlon Edward Menezes , Shuqiang Yang , Vikramjit Singh , Kang Luo , Frank Y. Xu
Abstract: Display devices include waveguides with in-coupling optical elements that mitigate re-bounce of in-coupled light to improve overall in-coupling efficiency and/or uniformity. A waveguide receives light from a light source and/or projection optics and includes an in-coupling optical element that in-couples the received light to propagate by total internal reflection in a propagation direction within the waveguide. Once in-coupled into the waveguide the light may undergo re-bounce, in which the light reflects off a waveguide surface and, after the reflection, strikes the in-coupling optical element. Upon striking the in-coupling optical element, the light may be partially absorbed and/or out-coupled by the optical element, thereby effectively reducing the amount of in-coupled light propagating through the waveguide. The in-coupling optical element can be truncated or have reduced diffraction efficiency along the propagation direction to reduce the occurrence of light loss due to re-bounce of in-coupled light, resulting in less in-coupled light being prematurely out-coupled and/or absorbed during subsequent interactions with the in-coupling optical element.
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公开(公告)号：US20210041611A1
公开(公告)日：2021-02-11
申请号：US16930940
申请日：2020-07-16
Applicant: Magic Leap, Inc.
Inventor： Shuqiang Yang , Kang Luo , Vikramjit Singh , Frank Y. Xu
Abstract: A method of fabricating a blazed diffraction grating comprises providing a master template substrate and imprinting periodically repeating lines on the master template substrate in a plurality of master template regions. The periodically repeating lines in different ones of the master template regions extend in different directions. The method additionally comprises using at least one of the master template regions as a master template to imprint at least one blazed diffraction grating pattern on a grating substrate.
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公开(公告)号：US20200110278A1
公开(公告)日：2020-04-09
申请号：US16705127
申请日：2019-12-05
Applicant: Magic Leap, Inc.
Inventor： Shuqiang Yang , Vikramjit Singh , Kang Luo , Nai-Wen Pi , Frank Y. Xu
Abstract: A method of depositing a variable thickness material includes providing a substrate and providing a shadow mask having a first region with a first aperture dimension to aperture periodicity ratio and a second region with a second aperture dimension to aperture periodicity ratio less than the first aperture dimension to aperture periodicity ratio. The method also includes positioning the shadow mask adjacent the substrate and performing a plasma deposition process on the substrate to deposit the variable thickness material. A layer thickness adjacent the first region is greater than a layer thickness adjacent the second region.
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公开(公告)号：US20200041712A1
公开(公告)日：2020-02-06
申请号：US16596630
申请日：2019-10-08
Applicant: Magic Leap, Inc.
Inventor： Christophe Peroz , Mauro Melli , Vikramjit Singh , David Jurbergs , Jeffrey Dean Schmulen , Zongxing Wang , Shuqiang Yang , Frank Y. Xu , Kang Luo , Marlon Edward Menezes , Michael Nevin Miller
IPC: F21V8/00 , G02B27/01 , G02B7/00 , G06F3/01 , G06F3/147 , G09G3/00 , G09G3/20 , G02B5/30 , G02B27/00 , G02B27/28 , G02B27/10 , H04N9/31 , G02C5/16 , G02C11/00 , G06F1/16 , G06F1/20 , H05K7/20 , G02B5/18
Abstract: A method of manufacturing a waveguide having a combination of a binary grating structure and a blazed grating structure includes cutting a substrate off-axis, depositing a first layer on the substrate, and depositing a resist layer on the first layer. The resist layer includes a pattern. The method also includes etching the first layer in the pattern using the resist layer as a mask. The pattern includes a first region and a second region. The method further includes creating the binary grating structure in the substrate in the second region and creating the blazed grating structure in the substrate in the first region.
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Patent Agency Ranking
公开(公告)号：US10527865B2
公开(公告)日：2020-01-07
申请号：US16182309
申请日：2018-11-06
Applicant: Magic Leap, Inc.
Inventor： Shuqiang Yang , Vikramjit Singh , Kang Luo , Nai-Wen Pi , Frank Y. Xu
Abstract: A method of fabricating a diffractive structure with varying diffractive element depth includes providing a shadow mask having a first region with a first aperture dimension to aperture periodicity ratio and a second region with a second aperture dimension to aperture periodicity ratio less than the first aperture dimension to aperture periodicity ratio. The method also includes positioning the shadow mask adjacent a substrate. The substrate comprises an etch mask corresponding to the diffractive structure. The method further includes exposing the substrate to an etchant, etching the substrate to form diffractive elements adjacent the first region having a first depth, and etching the substrate to form diffractive elements adjacent the second region having a second depth less than the first depth.
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公开(公告)号：US10444419B2
公开(公告)日：2019-10-15
申请号：US15683702
申请日：2017-08-22
Applicant: Magic Leap, Inc.
Inventor： Samarth Bhargava , Robert D. TeKolste , Victor K. Liu , Christophe Peroz , Pierre St. Hilaire , Evgeni Poliakov , Jason Schaefer , Mauro Melli , Melanie West , Kang Luo , Vikramjit Singh , Frank Y. Xu
IPC: F21V8/00 , G02B5/30 , G02B5/18 , G02B27/00 , G02B27/28 , G02B27/01 , H04N9/31 , G02C11/00 , G02C5/16 , G06F1/16 , G06F1/20 , G09G3/00 , G02B27/10 , H05K7/20 , G06F3/01 , G06F3/147 , G09G3/20 , G02B27/30
Abstract: A device includes an input coupling grating having a first grating structure characterized by a first set of grating parameters. The input coupling grating is configured to receive light from a light source. The device also includes an expansion grating having a second grating structure characterized by a second set of grating parameters varying in at least two dimensions. The second grating structure is configured to receive light from the input coupling grating. The device further includes an output coupling grating having a third grating structure characterized by a third set of grating parameters. The output coupling grating is configured to receive light from the expansion grating and to output light to a viewer.
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公开(公告)号：US20190121239A1
公开(公告)日：2019-04-25
申请号：US16165027
申请日：2018-10-19
Applicant: Magic Leap, Inc.
Inventor： Vikramjit Singh , Michael Nevin Miller , Frank Y. Xu , Shuqiang Yang
Abstract: An imprint lithography method of configuring an optical layer includes selecting one or more parameters of a nanolayer to be applied to a substrate for changing an effective refractive index of the substrate and imprinting the nanolayer on the substrate to change the effective refractive index of the substrate such that a relative amount of light transmittable through the substrate is changed by a selected amount.
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公开(公告)号：US20250138316A1
公开(公告)日：2025-05-01
申请号：US18686632
申请日：2022-08-31
Applicant: Magic Leap, Inc.
Inventor： Bach Nguyen , Vikramjit Singh , Ravi Kumar Komanduri , Jason Allen Shultz , Ryan Jason Ong , Matthew Traub , Frank Y. Xu
IPC: G02B27/01
Abstract: In an example method for forming a variable optical viewing optics assembly (VOA) for a head mounted display, a prepolymer is deposited onto a substrate having a first optical element for the VOA. Further, a mold is applied to the prepolymer to conform the prepolymer to a curved surface of the mold on a first side of the prepolymer and to conform the prepolymer to a surface of the substrate on a second side of the prepolymer opposite the first side. Further, the prepolymer is exposed to actinic radiation sufficient to form a solid polymer from the prepolymer, such that the solid polymer forms an ophthalmic lens having a curved surface corresponding to the curved surface of the mold, and the substrate and the ophthalmic lens form an integrated optical component. The mold is released from the solid polymer, and the VOA is assembled using the integrated optical component.
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40.发明授权公开(公告)号：US12276825B2
公开(公告)日：2025-04-15
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
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.
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