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公开(公告)号：US20240418928A1
公开(公告)日：2024-12-19
申请号：US18729437
申请日：2023-01-20
Applicant: Magic Leap, Inc.
Inventor： Matthew C Traub , Yingnan Liu , Vikramjit Singh , Frank Y. Xu , Robert D. Tekolste , Qizhen Xue , Samarth Bhargava , Victor Kai Liu , Brandon Michael-James Born , Kevin Messer
Abstract: The disclosure describes an improved drop-on-demand, controlled volume technique for dispensing resist onto a substrate, which is then imprinted to create a patterned optical device suitable for use in optical applications such as augmented reality and/or mixed reality systems. The technique enables the dispensation of drops of resist at precise locations on the substrate, with precisely controlled drop volume corresponding to an imprint template having different zones associated with different total resist volumes. Controlled drop size and placement also provides for substantially less variation in residual layer thickness across the surface of the substrate after imprinting, compared to previously available techniques. The technique employs resist having a refractive index closer to that of the substrate index, reducing optical artifacts in the device. To ensure reliable dispensing of the higher index and higher viscosity resist in smaller drop sizes, the dispensing system can continuously circulate the resist.
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公开(公告)号：US20250147222A1
公开(公告)日：2025-05-08
申请号：US19018967
申请日：2025-01-13
Applicant: Magic Leap, Inc.
Inventor： Matthew C. Traub , Yingnan Liu , Vikramjit Singh , Frank Y. Xu , Robert D. Tekolste , Qizhen Xue , Samarth Bhargava , Victor Kai Liu , Brandon Michael-James Born , Kevin Messer
Abstract: The disclosure describes an improved drop-on-demand, controlled volume technique for dispensing resist onto a substrate, which is then imprinted to create a patterned optical device suitable for use in optical applications such as augmented reality and/or mixed reality systems. The technique enables the dispensation of drops of resist at precise locations on the substrate, with precisely controlled drop volume corresponding to an imprint template having different zones associated with different total resist volumes. Controlled drop size and placement also provides for substantially less variation in residual layer thickness across the surface of the substrate after imprinting, compared to previously available techniques. The technique employs resist having a refractive index closer to that of the substrate index, reducing optical artifacts in the device. To ensure reliable dispensing of the higher index and higher viscosity resist in smaller drop sizes, the dispensing system can continuously circulate the resist.
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公开(公告)号：US12222537B2
公开(公告)日：2025-02-11
申请号：US18729437
申请日：2023-01-20
Applicant: Magic Leap, Inc.
Inventor： Matthew C Traub , Yingnan Liu , Vikramjit Singh , Frank Y. Xu , Robert D. Tekolste , Qizhen Xue , Samarth Bhargava , Victor Kai Liu , Brandon Michael-James Born , Kevin Messer
Abstract: The disclosure describes an improved drop-on-demand, controlled volume technique for dispensing resist onto a substrate, which is then imprinted to create a patterned optical device suitable for use in optical applications such as augmented reality and/or mixed reality systems. The technique enables the dispensation of drops of resist at precise locations on the substrate, with precisely controlled drop volume corresponding to an imprint template having different zones associated with different total resist volumes. Controlled drop size and placement also provides for substantially less variation in residual layer thickness across the surface of the substrate after imprinting, compared to previously available techniques. The technique employs resist having a refractive index closer to that of the substrate index, reducing optical artifacts in the device. To ensure reliable dispensing of the higher index and higher viscosity resist in smaller drop sizes, the dispensing system can continuously circulate the resist.
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公开(公告)号：US20230393401A1
公开(公告)日：2023-12-07
申请号：US18234806
申请日：2023-08-16
Applicant: Magic Leap, Inc.
Inventor： Brian T. Schowengerdt , Mathew D. Watson , Brandon Michael-James Born , Samarth Bhargava , Victor Kai Liu
CPC classification number: G02B27/0172 , G02B27/0081 , G02B6/0015 , G02B6/0038 , G02B2027/0178 , G02B2027/0125
Abstract: A method of operating an eyepiece waveguide includes directing light from a projector to impinge on an incoupling grating (ICG). The method also includes diffracting a first fraction of the light from the projector into a first portion of the eyepiece waveguide, propagating the first fraction of the light into a second portion of the eyepiece waveguide, and diffracting the first fraction of the light out of the eyepiece waveguide. The method further includes diffracting a second fraction of the light from the projector into the second portion of the eyepiece waveguide, propagating the second fraction of the light into the first portion of the eyepiece waveguide, and diffracting the second fraction out of the eyepiece waveguide.
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Patent Agency Ranking
公开(公告)号：US20230096079A1
公开(公告)日：2023-03-30
申请号：US18070144
申请日：2022-11-28
Applicant: Magic Leap, Inc.
Inventor： Brian T. Schowengerdt , Mathew D. Watson , Brandon Michael-James Born , Samarth Bhargava , Victor Kai Liu
Abstract: A method of operating an eyepiece waveguide having a first region and a second region includes directing light from a first projector to impinge on a first incoupling grating (ICG) and light from a second projector to impinge on a second ICG. Light from the first projector is diffracted into a first portion and a second portion of the first region of the eyepiece waveguide and out of the eyepiece waveguide. Light from the second projector is diffracted into a first portion and a second portion of the second region of the eyepiece waveguide and out of the eyepiece waveguide.
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公开(公告)号：US20210364803A1
公开(公告)日：2021-11-25
申请号：US17327570
申请日：2021-05-21
Applicant: Magic Leap, Inc.
Inventor： Brian T. Schowengerdt , Mathew D. Watson , Brandon Michael-James Born , Samarth Bhargava , Victor Kai Liu
Abstract: An eyepiece waveguide for an augmented reality display system includes a substrate having a first surface and a second surface and a diffractive input coupling element formed on or in the first surface or the second surface of the substrate. The diffractive input coupling element is configured to receive an input beam of light and to couple the input beam into the substrate as a guided beam. The eyepiece waveguide also includes a diffractive combined pupil expander-extractor (CPE) element formed on or in the first surface or the second surface of the substrate. The diffractive CPE element includes a first portion and a second portion divided by an axis. A first set of diffractive optical elements is disposed in the first portion and oriented at a positive angle with respect to the axis and a second set of diffractive optical elements is disposed in the second portion and oriented at a negative angle with respect to the axis.
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公开(公告)号：US12242066B2
公开(公告)日：2025-03-04
申请号：US18234806
申请日：2023-08-16
Applicant: Magic Leap, Inc.
Inventor： Brian T. Schowengerdt , Mathew D. Watson , Brandon Michael-James Born , Samarth Bhargava , Victor Kai Liu
Abstract: A method of operating an eyepiece waveguide includes directing light from a projector to impinge on an incoupling grating (ICG). The method also includes diffracting a first fraction of the light from the projector into a first portion of the eyepiece waveguide, propagating the first fraction of the light into a second portion of the eyepiece waveguide, and diffracting the first fraction of the light out of the eyepiece waveguide. The method further includes diffracting a second fraction of the light from the projector into the second portion of the eyepiece waveguide, propagating the second fraction of the light into the first portion of the eyepiece waveguide, and diffracting the second fraction out of the eyepiece waveguide.
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公开(公告)号：US11774765B2
公开(公告)日：2023-10-03
申请号：US18070144
申请日：2022-11-28
Applicant: Magic Leap, Inc.
Inventor： Brian T. Schowengerdt , Mathew D. Watson , Brandon Michael-James Born , Samarth Bhargava , Victor Kai Liu
CPC classification number: G02B27/0172 , G02B6/0015 , G02B6/0038 , G02B27/0081 , G02B2027/0125 , G02B2027/0178
Abstract: A method of operating an eyepiece waveguide having a first region and a second region includes directing light from a first projector to impinge on a first incoupling grating (ICG) and light from a second projector to impinge on a second ICG. Light from the first projector is diffracted into a first portion and a second portion of the first region of the eyepiece waveguide and out of the eyepiece waveguide. Light from the second projector is diffracted into a first portion and a second portion of the second region of the eyepiece waveguide and out of the eyepiece waveguide.
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公开(公告)号：US11536972B2
公开(公告)日：2022-12-27
申请号：US17327570
申请日：2021-05-21
Applicant: Magic Leap, Inc.
Inventor： Brian T. Schowengerdt , Mathew D. Watson , Brandon Michael-James Born , Samarth Bhargava , Victor Kai Liu
Abstract: An eyepiece waveguide for an augmented reality display system includes a substrate having a first surface and a second surface and a diffractive input coupling element formed on or in the first surface or the second surface of the substrate. The diffractive input coupling element is configured to receive an input beam of light and to couple the input beam into the substrate as a guided beam. The eyepiece waveguide also includes a diffractive combined pupil expander-extractor (CPE) element formed on or in the first surface or the second surface of the substrate. The diffractive CPE element includes a first portion and a second portion divided by an axis. A first set of diffractive optical elements is disposed in the first portion and oriented at a positive angle with respect to the axis and a second set of diffractive optical elements is disposed in the second portion and oriented at a negative angle with respect to the axis.
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