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公开(公告)号：US20250147224A1
公开(公告)日：2025-05-08
申请号：US19018490
申请日：2025-01-13
Applicant: Magic Leap, Inc.
Inventor： Dianmin Lin , Mauro Melli , Pierre St. Hilaire , Christophe Peroz , Evgeni Poliakov
Abstract: A display system comprises a waveguide having light incoupling or light outcoupling optical elements formed of a metasurface. The metasurface is a multilevel (e.g., bi-level, tri-level, etc.) structure having a first level defined by spaced apart protrusions formed of a first optically transmissive material and a second optically transmissive material between the protrusions. The metasurface can also include a second level formed by the second optically transmissive material. The protrusions on the first level may be patterned by nanoimprinting the first optically transmissive material, and the second optically transmissive material may be deposited over and between the patterned protrusions. The widths of the protrusions and the spacing between the protrusions may be selected to diffract light, and a pitch of the protrusions may be 10-600 nm.
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公开(公告)号：US11885969B2
公开(公告)日：2024-01-30
申请号：US17691868
申请日：2022-03-10
Applicant: Magic Leap, Inc.
Inventor： Pierre St. Hilaire , Mohammadreza Khorasaninejad , Dianmin Lin
CPC classification number: G02B27/0172 , G02B6/0038 , G02B6/0061 , G02B6/0076 , G02B2027/0112 , G02B2027/0118
Abstract: An example head-mounted display device includes a plurality of optical elements in optical communication. The optical elements are configured to project an image in a field of view of a user wearing the head-mounted display device. A first optical element is configured to receive light from a second optical element. The first optical element defines a grating at along a periphery of the first optical element. The grating includes a plurality of protrusions extending from a base portion of the first optical element. The protrusions include a first material having a first optical dispersion profile for visible wavelengths of light. The grating also includes a second material disposed between at least some of the plurality of protrusions along the base portion of the first optical element. The second material has a second optical dispersion profile for visible wavelengths of light.
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公开(公告)号：US11796818B2
公开(公告)日：2023-10-24
申请号：US17749838
申请日：2022-05-20
Applicant: Magic Leap, Inc.
Inventor： Dianmin Lin , Mauro Melli , Pierre St. Hilaire , Christophe Peroz , Evgeni Poliakov
IPC: G02B27/01 , G02B5/30 , H04N13/344 , H04N13/349 , G02B30/35 , G02B5/18
CPC classification number: G02B27/0172 , G02B5/30 , G02B30/35 , H04N13/344 , H04N13/349 , G02B2005/1804 , G02B2027/0109 , G02B2027/0125 , G02B2027/0174
Abstract: An optical system comprises an optically transmissive substrate comprising a metasurface which comprises a grating comprising a plurality of unit cells. Each unit cell comprises a laterally-elongated first nanobeam having a first width; and a laterally-elongated second nanobeam spaced apart from the first nanobeam by a gap, the second nanobeam having a second width larger than the first width. A pitch of the unit cells is 10 nm to 1 μm. The heights of the first and the second nanobeams are: 10 nm to 450 nm where a refractive index of the substrate is more than 3.3; and 10 nm to 1 μm where the refractive index is 3.3 or less.
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公开(公告)号：US11789198B2
公开(公告)日：2023-10-17
申请号：US17583079
申请日：2022-01-24
Applicant: Magic Leap, Inc.
Inventor： Dianmin Lin , Mauro Melli , Pierre St. Hilaire , Christophe Peroz , Evgeni Poliakov
CPC classification number: G02B6/0076 , G02B6/00 , G02B6/005 , G02B6/0013 , G02B6/0026 , G02B6/0031 , G02B6/0065 , G02B6/29316 , G02B27/0172 , G02B5/1823 , G02B6/1226 , G02B2027/0134
Abstract: A display system comprises a waveguide having light incoupling or light outcoupling optical elements formed of a metasurface. The metasurface is a multilevel (e.g., bi-level) structure having a first level defined by spaced apart protrusions formed of a first optically transmissive material and a second optically transmissive material between the protrusions. The metasurface also includes a second level formed by the second optically transmissive material. The protrusions on the first level may be patterned by nanoimprinting the first optically transmissive material, and the second optically transmissive material may be deposited over and between the patterned protrusions. The widths of the protrusions and the spacing between the protrusions may be selected to diffract light, and a pitch of the protrusions may be 10-600 nm.
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公开(公告)号：US20230096804A1
公开(公告)日：2023-03-30
申请号：US18077030
申请日：2022-12-07
Applicant: Magic Leap, Inc.
Inventor： Dianmin Lin , Pierre St. Hilaire
Abstract: An example a head-mounted display device includes a light projector and an eyepiece. The eyepiece is arranged to receive light from the light projector and direct the light to a user during use of the wearable display system. The eyepiece includes a waveguide having an edge positioned to receive light from the display light source module and couple the light into the waveguide. The waveguide includes a first surface and a second surface opposite the first surface. The waveguide includes several different regions, each having different grating structures configured to diffract light according to different sets of grating vectors.
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Patent Agency Ranking
36.发明授权公开(公告)号：US11604310B2
公开(公告)日：2023-03-14
申请号：US16879458
申请日：2020-05-20
Applicant: Magic Leap, Inc.
Inventor： Brian T. Schowengerdt , Dianmin Lin , Pierre St. Hilaire
IPC: G02B27/00 , G02B27/01 , G02B27/10 , G02B27/28 , G02C5/16 , G02C11/00 , G06F1/16 , G06F1/20 , G06F3/01 , G06F3/147 , G02B5/30 , G02B7/00 , F21V8/00 , G09G3/00 , G09G3/20 , H04N9/31 , H05K7/20 , G02B5/18 , G02B6/34 , G02B6/293 , G02B27/30
Abstract: An eyepiece for projecting an image to an eye of a viewer includes a waveguide configured to propagate light in a first wavelength range, and a grating coupled to a back surface of the waveguide. The grating is configured to diffract a first portion of the light propagating in the waveguide out of a plane of the waveguide toward a first direction, and to diffract a second portion of the light propagating in the waveguide out of the plane of the waveguide toward a second direction opposite to the first direction. The eyepiece furthers include a wavelength-selective reflector coupled to a front surface of the waveguide. The wavelength selective reflector is configured to reflect light in the first wavelength range and transmit light outside the first wavelength range, such that the wavelength-selective reflector reflects at least part of the second portion of the light back toward the first direction.
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公开(公告)号：US11543664B2
公开(公告)日：2023-01-03
申请号：US17082729
申请日：2020-10-28
Applicant: Magic Leap, Inc.
Inventor： Dianmin Lin , Pierre St. Hilaire
Abstract: An example a head-mounted display device includes a light projector and an eyepiece. The eyepiece is arranged to receive light from the light projector and direct the light to a user during use of the wearable display system. The eyepiece includes a waveguide having an edge positioned to receive light from the display light source module and couple the light into the waveguide. The waveguide includes a first surface and a second surface opposite the first surface. The waveguide includes several different regions, each having different grating structures configured to diffract light according to different sets of grating vectors.
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公开(公告)号：US20220146745A1
公开(公告)日：2022-05-12
申请号：US17583079
申请日：2022-01-24
Applicant: Magic Leap, Inc.
Inventor： Dianmin Lin , Mauro Melli , Pierre St. Hilaire , Christophe Peroz , Evgeni Poliakov
Abstract: A display system comprises a waveguide having light incoupling or light outcoupling optical elements formed of a metasurface. The metasurface is a multilevel (e.g., bi-level) structure having a first level defined by spaced apart protrusions formed of a first optically transmissive material and a second optically transmissive material between the protrusions. The metasurface also includes a second level formed by the second optically transmissive material. The protrusions on the first level may be patterned by nanoimprinting the first optically transmissive material, and the second optically transmissive material may be deposited over and between the patterned protrusions. The widths of the protrusions and the spacing between the protrusions may be selected to diffract light, and a pitch of the protrusions may be 10-600 nm.
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公开(公告)号：US20220099976A1
公开(公告)日：2022-03-31
申请号：US17427355
申请日：2020-01-29
Applicant: Magic Leap, Inc.
Inventor： Mohammadreza Khorasaninejad , Victor Kai Liu , Dianmin Lin , Christophe Peroz , Pierre St. Hilaire
Abstract: A display system includes a waveguide assembly having a plurality of waveguides, each waveguide associated with an in-coupling optical element configured to in-couple light into the associated waveguide. A projector outputs light from one or more spatially-separated pupils, and at least one of the pupils outputs light of two different ranges of wavelengths. The in-coupling optical elements for two or more waveguides are inline, e.g. vertically aligned, with each other so that the in-coupling optical elements are in the path of light of the two different ranges of wavelengths. The in-coupling optical element of a first waveguide selectively in-couples light of one range of wavelengths into the waveguide, while the in-coupling optical element of a second waveguide selectively in-couples light of another range of wavelengths. Absorptive color filters are provided forward of an in-coupling optical element to limit the propagation of undesired wavelengths of light to that in-coupling optical element.
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40.发明申请公开(公告)号：US20210141146A1
公开(公告)日：2021-05-13
申请号：US17089546
申请日：2020-11-04
Applicant: Magic Leap, Inc.
Inventor： Mauro Melli , Mohammadreza Khorasaninejad , Christophe Peroz , Pierre St. Hilaire , Dianmin Lin
Abstract: Display devices include waveguides with metasurfaces as in-coupling and/or out-coupling optical elements. The metasurfaces may be formed on a surface of the waveguide and may include a plurality or an array of sub-wavelength-scale (e.g., nanometer-scale) protrusions. Individual protrusions may include horizontal and/or vertical layers of different materials which may have different refractive indices, allowing for enhanced manipulation of light redirecting properties of the metasurface. Some configurations and combinations of materials may advantageously allow for broadband metasurfaces. Manufacturing methods described herein provide for vertical and/or horizontal layers of different materials in a desired configuration or profile.
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