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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
申请人： Magic Leap, Inc.
发明人： 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分类号： G02B25/001 , G02B5/208 , G02B27/0006 , G02B27/0081
摘要： 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：US20210311298A1
公开(公告)日：2021-10-07
申请号：US17262535
申请日：2019-07-22
申请人： MAGIC LEAP, INC.
发明人： 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
摘要： 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：US11513372B2
公开(公告)日：2022-11-29
申请号：US16438663
申请日：2019-06-12
申请人： Magic Leap, Inc.
摘要： 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
申请人： Magic Leap, Inc.
发明人： Ming Yang , Wendong Xing , Eric C. Browy , William Hudson Welch , Thomas Mercier
IPC分类号： G01M11/02
摘要： 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：US12099258B2
公开(公告)日：2024-09-24
申请号：US17984818
申请日：2022-11-10
申请人： Magic Leap, Inc.
CPC分类号： G02C13/001 , B29C35/0288 , G02B25/001 , G02C13/005 , B29C2035/0827 , B29D11/00413
摘要： 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：US12019233B2
公开(公告)日：2024-06-25
申请号：US17262535
申请日：2019-07-22
申请人： MAGIC LEAP, INC.
发明人： 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分类号： G02B25/001 , G02B5/208 , G02B27/0006 , G02B27/0081
摘要： 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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7.发明授权公开(公告)号：US11199719B2
公开(公告)日：2021-12-14
申请号：US17251730
申请日：2019-06-10
申请人： MAGIC LEAP, INC.
发明人： Huihang Dong , Wendong Xing , Thomas Mercier , Ryan Rieck , Robert D. Tekolste , William Hudson Welch
摘要： Methods and systems for qualifying a multi-layered optical stack include providing the multi-layered optical stack including a first optical layer and a second optical layer. The first optical layer includes a first pair of fiducial marks and the second optical layer includes a second pair of fiducial marks Each of the first pair are spaced laterally from each of the second pair such that the first pair and the second pair are visible through the optical stack. A first angle defined between a first reference line connecting the first pair and a global reference line is determined. A second angle defined between a second reference line connecting the second pair and the global reference line is determined. The multi-layered optical stack is qualified for use in the optical projection system based on whether a difference between the first angle and the second angle is less than a predetermined threshold.
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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
申请人： Magic Leap, Inc.
摘要： 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：US10942086B2
公开(公告)日：2021-03-09
申请号：US16836579
申请日：2020-03-31
申请人： Magic Leap, Inc.
发明人： Ming Yang , Wendong Xing , Eric C. Browy , William Hudson Welch , Thomas Mercier
摘要： 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
申请人： Magic Leap, Inc.
发明人： Ming Yang , Wendong Xing , Eric C. Browy , William Hudson Welch , Thomas Mercier
IPC分类号： G01M11/02
摘要： 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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