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公开(公告)号：US20220128817A1
公开(公告)日：2022-04-28
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
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：US11307345B2
公开(公告)日：2022-04-19
申请号：US17194878
申请日：2021-03-08
Applicant: Magic Leap, Inc.
Inventor： Shuqiang Yang , Vikramjit Singh , Kang Luo , Nai-Wen Pi , Frank Y. Xu
Abstract: Embodiments of the present disclosure are directed to techniques for manufacturing an eyepiece (or eyepiece layer) by applying multiple, different diffraction gratings to a single side of an eyepiece substrate instead of applying different gratings to different sides (e.g., opposite surfaces) of the substrate. Embodiments are also directed to the eyepiece (or eyepiece layer) that is arranged to have multiple, different diffraction gratings on a single side of the eyepiece substrate. In some embodiments, two or more grating patterns are superimposed to create a combination pattern in a template (e.g., a master), which is then used to apply the combination pattern to a single side of the eyepiece substrate. In some embodiments, multiple layers of patterned material (e.g., with differing refraction indices) are applied to a single side of the substrate. In some examples, the combined grating patterns are orthogonal pupil expander and exit pupil expander grating patterns.
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43.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：US20210170668A1
公开(公告)日：2021-06-10
申请号：US17153774
申请日：2021-01-20
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 , B29C43/34 , B29C43/30 , B29C43/58 , G03F7/00 , B29C43/28 , B29C43/22 , B29C43/52 , B29C43/48 , B29C43/50
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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Patent Agency Ranking
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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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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