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公开(公告)号：US11513372B2
公开(公告)日：2022-11-29
申请号：US16438663
申请日：2019-06-12
Applicant: Magic Leap, Inc.
Inventor： Wendong Xing , Neal Paul Ricks , Thomas Mercier , William Hudson Welch
Abstract: Techniques are described for applying an edge sealant to the edge of a multi-layer optical device. In particular, embodiments provide an apparatus that performs a precision measurement of the perimeter of an eyepiece, applying the edge sealant (e.g., polymer) based on the precision-measured perimeter, and subsequently cures the edge sealant, using ultraviolet (UV) light that is directed at the edge sealant. The curing process may be performed within a short time following the application of the edge sealant, to ensure that any wicking of the edge sealant between the layers of the eyepiece is controlled to be no greater than a particular depth tolerance. In some examples, the edge sealant is applied to the optical device prevent, or at least reduce, the leakage of light from the optical device, and also to ensure and maintain the structure of the multi-layer optical device.
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公开(公告)号：US20200225114A1
公开(公告)日：2020-07-16
申请号：US16836579
申请日：2020-03-31
Applicant: Magic Leap, Inc.
Inventor： Ming Yang , Wendong Xing , Eric C. Browy , William Hudson Welch , Thomas Mercier
IPC: G01M11/02
Abstract: Techniques are described for inspecting optical devices, such as eyepieces, to determine whether they exhibit light leakage through an edge sealant that has been applied to the device. Embodiments provide an inspection apparatus that can be employed to detect the leakage of light through an edge sealant of an optical device, where the edge sealant is applied to prevent, or at least reduce, the leakage of light from the optical device. Light from a light source is projected into the optical device. The light can travel along one or more wave guides within the device, until reaching an edge of the device. Light that is able to leak through an edge sealant can be reflected, using mirror(s) in the apparatus, and detected by a camera. Image(s) captured by the camera can be analyzed to determine the performance of the optical device with respect to edge leakage.
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公开(公告)号：US20240310622A1
公开(公告)日：2024-09-19
申请号：US18675474
申请日：2024-05-28
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
CPC classification number: G02B25/001 , G02B5/208 , G02B27/0006 , G02B27/0081
Abstract: 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 dam to restrict the wicking of the edge sealant between layers of the optical device, and venting gap(s) in the sealant and dam 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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公开(公告)号：US20230083319A1
公开(公告)日：2023-03-16
申请号：US17984818
申请日：2022-11-10
Applicant: Magic Leap, Inc.
Inventor： Wendong Xing , Neal Paul Ricks , Thomas Mercier , William Hudson Welch
Abstract: Techniques are described for applying an edge sealant to the edge of a multi-layer optical device. In particular, embodiments provide an apparatus that performs a precision measurement of the perimeter of an eyepiece, applying the edge sealant (e.g., polymer) based on the precision-measured perimeter, and subsequently cures the edge sealant, using ultraviolet (UV) light that is directed at the edge sealant. The curing process may be performed within a short time following the application of the edge sealant, to ensure that any wicking of the edge sealant between the layers of the eyepiece is controlled to be no greater than a particular depth tolerance. In some examples, the edge sealant is applied to the optical device prevent, or at least reduce, the leakage of light from the optical device, and also to ensure and maintain the structure of the multi-layer optical device.
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公开(公告)号：US11079522B1
公开(公告)日：2021-08-03
申请号：US15993408
申请日：2018-05-30
Applicant: Magic Leap, Inc.
Inventor： Huihang Dong , Ryan Rieck , Thomas Mercier
Abstract: Methods and apparatuses related to fiducial designs for fiducial markers on glass substrates, or other transparent or translucent substrates, are disclosed. Example fiducial designs can facilitate visual recognition by enhancing edge detection in visual perception. In example fiducial designs, optical features on glass substrates can re-direct light so as to present a bright image region. Such optical features can include surface relief patterns formed in a coating on the surface of glass substrates. An exemplary method for manufacturing the fiducial markers can involve transfers of a fiducial design across a master mold or plate, a submaster mold or plate, and a target glass substrate. A fiducial marker can facilitate the use of the substrate in a variety of applications, including machine vision systems that facilitate automated performance of manufacturing processes on input working material.
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Patent Agency Ranking
公开(公告)号：US10942086B2
公开(公告)日：2021-03-09
申请号：US16836579
申请日：2020-03-31
Applicant: Magic Leap, Inc.
Inventor： Ming Yang , Wendong Xing , Eric C. Browy , William Hudson Welch , Thomas Mercier
Abstract: Techniques are described for inspecting optical devices, such as eyepieces, to determine whether they exhibit light leakage through an edge sealant that has been applied to the device. Embodiments provide an inspection apparatus that can be employed to detect the leakage of light through an edge sealant of an optical device, where the edge sealant is applied to prevent, or at least reduce, the leakage of light from the optical device. Light from a light source is projected into the optical device. The light can travel along one or more wave guides within the device, until reaching an edge of the device. Light that is able to leak through an edge sealant can be reflected, using mirror(s) in the apparatus, and detected by a camera. Image(s) captured by the camera can be analyzed to determine the performance of the optical device with respect to edge leakage.
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公开(公告)号：US20190383697A1
公开(公告)日：2019-12-19
申请号：US16438683
申请日：2019-06-12
Applicant: Magic Leap, Inc.
Inventor： Ming Yang , Wendong Xing , Eric C. Browy , William Hudson Welch , Thomas Mercier
IPC: G01M11/02
Abstract: Techniques are described for inspecting optical devices, such as eyepieces, to determine whether they exhibit light leakage through an edge sealant that has been applied to the device. Embodiments provide an inspection apparatus that can be employed to detect the leakage of light through an edge sealant of an optical device, where the edge sealant is applied to prevent, or at least reduce, the leakage of light from the optical device. Light from a light source is projected into the optical device. The light can travel along one or more wave guides within the device, until reaching an edge of the device. Light that is able to leak through an edge sealant can be reflected, using mirror(s) in the apparatus, and detected by a camera. Image(s) captured by the camera can be analyzed to determine the performance of the optical device with respect to edge leakage.
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公开(公告)号：US11703755B2
公开(公告)日：2023-07-18
申请号：US17364498
申请日：2021-06-30
Applicant: Magic Leap, Inc.
Inventor： Huihang Dong , Ryan Rieck , Thomas Mercier
CPC classification number: G03F7/0002 , G02B5/1852 , G02B5/1861 , G02B27/0012 , G02B27/32 , G03F9/7042 , G06T7/0006 , G06T7/73 , G06V10/44 , G06T2207/30204
Abstract: Methods and apparatuses related to fiducial designs for fiducial markers on glass substrates, or other transparent or translucent substrates, are disclosed. Example fiducial designs can facilitate visual recognition by enhancing edge detection in visual perception. In example fiducial designs, optical features on glass substrates can re-direct light so as to present a bright image region. Such optical features can include surface relief patterns formed in a coating on the surface of glass substrates. An exemplary method for manufacturing the fiducial markers can involve transfers of a fiducial design across a master mold or plate, a submaster mold or plate, and a target glass substrate. A fiducial marker can facilitate the use of the substrate in a variety of applications, including machine vision systems that facilitate automated performance of manufacturing processes on input working material.
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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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公开(公告)号：US12099258B2
公开(公告)日：2024-09-24
申请号：US17984818
申请日：2022-11-10
Applicant: Magic Leap, Inc.
Inventor： Wendong Xing , Neal Paul Ricks , Thomas Mercier , William Hudson Welch
CPC classification number: G02C13/001 , B29C35/0288 , G02B25/001 , G02C13/005 , B29C2035/0827 , B29D11/00413
Abstract: Techniques are described for applying an edge sealant to the edge of a multi-layer optical device. In particular, embodiments provide an apparatus that performs a precision measurement of the perimeter of an eyepiece, applying the edge sealant (e.g., polymer) based on the precision-measured perimeter, and subsequently cures the edge sealant, using ultraviolet (UV) light that is directed at the edge sealant. The curing process may be performed within a short time following the application of the edge sealant, to ensure that any wicking of the edge sealant between the layers of the eyepiece is controlled to be no greater than a particular depth tolerance. In some examples, the edge sealant is applied to the optical device prevent, or at least reduce, the leakage of light from the optical device, and also to ensure and maintain the structure of the multi-layer optical device.
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