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公开(公告)号：US20210072437A1
公开(公告)日：2021-03-11
申请号：US17019065
申请日：2020-09-11
Applicant: Magic Leap, Inc.
Inventor： Vikramjit Singh , Kang Luo , Xiaopei Deng , Shuqiang Yang , Frank Y. Xu , Kevin Messer
Abstract: Diffraction gratings provide optical elements in head-mounted display systems to, e.g., incouple light into or out-couple light out of a waveguide. These diffraction gratings may be configured to have reduced polarization sensitivity. Such gratings may, for example, incouple or outcouple light of different polarizations with similar level of efficiency. The diffraction gratings and waveguides may include a transmissive layer and a metal layer. The diffraction grating may comprises a blazed grating.
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公开(公告)号：US10926452B2
公开(公告)日：2021-02-23
申请号：US15990155
申请日：2018-05-25
Applicant: Magic Leap, Inc.
Inventor： Roy Patterson , Charles Scott Carden , Satish Sadam , Ryan Christiansen , Matthew S. Shafran , Christopher John Fleckenstein , Vikramjit Singh , Michael Nevin Miller , Kang Luo
IPC: B29C59/04 , B29C43/22 , B29C43/28 , B29C43/30 , B29C43/34 , B29C43/48 , B29C43/50 , B29C43/52 , B29C43/58 , G03F7/00
Abstract: Systems, apparatus, and methods for double-sided imprinting are provided. An example system includes first rollers for moving a first web including a first template having a first imprinting feature, second rollers for moving a second web including a second template having a second imprinting feature, dispensers for dispensing resist, a locating system for locating reference marks on the first and second webs for aligning the first and second templates, a light source for curing the resist, such that a cured first resist has a first imprinted feature corresponding to the first imprinting feature on one side of the substrate and a cured second resist has a second imprinted feature corresponding to the second imprinting feature on the other side of the substrate, and a moving system for feeding in the substrate between the first and second templates and unloading the double-imprinted substrate from the first and second webs.
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公开(公告)号：US10747012B2
公开(公告)日：2020-08-18
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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14.发明申请公开(公告)号：US20200033604A1
公开(公告)日：2020-01-30
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：US20180059304A1
公开(公告)日：2018-03-01
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
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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Patent Agency Ranking
公开(公告)号：US12204258B2
公开(公告)日：2025-01-21
申请号：US18014327
申请日：2021-08-06
Applicant: Magic Leap, Inc.
Inventor： Jeremy Lee Sevier , Satish Sadam , Joseph Michael Imhof , Kang Luo , Kangkang Wang , Roy Matthew Patterson , Qizhen Xue , Brett William Best , Charles Scott Carden , Matthew S. Shafran , Michael Nevin Miller
Abstract: Systems and methods for managing multi-objective alignments in imprinting (e.g., single-sided or double-sided) are provided. An example system includes rollers for moving a template roll, a stage for holding a substrate, a dispenser for dispensing resist on the substrate, a light source for curing the resist to form an imprint on the substrate when a template of the template roll is pressed into the resist on the substrate, a first inspection system for registering a fiducial mark of the template to determine a template offset, a second inspection system for registering the imprint on the substrate to determine a wafer registration offset between a target location and an actual location of the imprint, and a controller for controlling to move the substrate with the resist below the template based on the template offset, and determine an overlay bias of the imprint on the substrate based on the wafer registration offset.
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公开(公告)号：US12083733B2
公开(公告)日：2024-09-10
申请号：US17938550
申请日：2022-10-06
Applicant: Magic Leap, Inc.
Inventor： Roy Patterson , Charles Scott Carden , Satish Sadam , Ryan Christiansen , Matthew S. Shafran , Christopher John Fleckenstein , Vikramjit Singh , Michael Nevin Miller , Kang Luo
IPC: B29C59/04 , B29C43/22 , B29C43/28 , B29C43/30 , B29C43/34 , B29C43/48 , B29C43/50 , B29C43/52 , B29C43/58 , B29C51/26 , G03F7/00
CPC classification number: B29C59/04 , B29C43/222 , B29C43/28 , B29C43/305 , B29C43/34 , B29C43/48 , B29C43/50 , B29C43/52 , B29C43/58 , B29C51/262 , G03F7/0002 , B29C2043/3433
Abstract: Systems, apparatus, and methods for double-sided imprinting are provided. An example system includes first rollers for moving a first web including a first template having a first imprinting feature, second rollers for moving a second web including a second template having a second imprinting feature, dispensers for dispensing resist, a locating system for locating reference marks on the first and second webs for aligning the first and second templates, a light source for curing the resist, such that a cured first resist has a first imprinted feature corresponding to the first imprinting feature on one side of the substrate and a cured second resist has a second imprinted feature corresponding to the second imprinting feature on the other side of the substrate, and a moving system for feeding in the substrate between the first and second templates and unloading the double-imprinted substrate from the first and second webs.
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公开(公告)号：US11982813B2
公开(公告)日：2024-05-14
申请号：US17437722
申请日：2020-03-11
Applicant: Magic Leap, Inc.
Inventor： Vikramjit Singh , Kang Luo , Michal Beau Dennison Vaughn , Samarth Bhargava , Shuqiang Yang , Michael Nevin Miller , Frank Y. Xu , Michael Anthony Klug , Kevin Messer , Robert D. Tekolste , Xiaopei Deng , Xiao Li
CPC classification number: G02B27/0172 , G02B6/0016 , G02B6/0036 , G02B6/0076 , G02B6/34 , G02B2027/0118 , G02B2027/0125
Abstract: Waveguides comprising materials with refractive index greater than or equal to 1.8 and methods of patterning waveguides are disclosed. Patterned waveguides comprising materials with refractive index greater than or equal to 1.8 can be incorporated in display devices, such as, for example wearable display devices to project virtual images to a viewer.
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公开(公告)号：US20220229304A1
公开(公告)日：2022-07-21
申请号：US17716921
申请日：2022-04-08
Applicant: Magic Leap, Inc.
Inventor： Kang Luo , Vikramjit Singh , Nai-Wen Pi , Shuqiang Yang , Frank Y. Xu
Abstract: Blazed diffraction gratings provide optical elements in head-mounted display systems to, e.g., incouple light into or out-couple light out of a waveguide. These blazed diffraction gratings may be configured to have reduced polarization sensitivity. Such gratings may, for example, incouple or outcouple light of different polarizations with similar level of efficiency. The blazed diffraction gratings and waveguides may be formed in a high refractive index substrate such as lithium niobate. In some implementations, the blazed diffraction gratings may include diffractive features having a feature height of 40 nm to 120 nm, for example, 80 nm. The diffractive features may be etched into the high index substrate, e.g., lithium niobate.
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公开(公告)号：US11360385B1
公开(公告)日：2022-06-14
申请号：US16518547
申请日：2019-07-22
Applicant: Magic Leap, Inc.
Inventor： Huihang Dong , Thomas Mercier , Vikramjit Singh , Kang Luo , Tasha Amit Mangaldas , William Hudson Welch , Qizhen Xue , Frank Y. Xu
IPC: G03F7/00
Abstract: Methods and systems for manufacturing an optical waveguide include depositing an adhesion promoting layer on a substrate. Multiple curable resist droplets are dispensed on the adhesion promoting layer. The adhesion promoting layer is disposed between and contacts the substrate and the curable resist droplets. The curable resist droplets define an optical eyepiece layer such that a zero residual layer thickness (RLT) region of the optical eyepiece layer is free of the curable resist droplets. The optical eyepiece layer is incised from the substrate to form the optical waveguide.
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