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公开(公告)号：US11899216B2
公开(公告)日：2024-02-13
申请号：US18077030
申请日：2022-12-07
Applicant: Magic Leap, Inc.
Inventor： Dianmin Lin , Pierre St. Hilaire
CPC classification number: G02B27/0172 , G02B6/0036 , G02B6/0076 , G02B2027/014 , G02B2027/0123 , G02B2027/0178
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：US11681153B2
公开(公告)日：2023-06-20
申请号：US15879005
申请日：2018-01-24
Applicant: Magic Leap, Inc.
Inventor： Dianmin Lin , Michael Anthony Klug , Pierre St. Hilaire , Mauro Meili , Christophe Peroz , Evgeni Poliakov
CPC classification number: G02B27/4205 , G02B1/002 , G02B1/111 , G02B5/1847 , G02B27/0093 , G02B27/0172 , G02B27/4272 , G02B2027/014 , G02B2027/0174 , G02B2027/0178 , G02B2027/0185 , G02B2207/101
Abstract: Antireflection coatings for metasurfaces are described herein. In some embodiments, the metasurface may include a substrate, a plurality of nanostructures thereon, and an antireflection coating disposed over the nanostructures. The antireflection coating may be a transparent polymer, for example a photoresist layer, and may have a refractive index lower than the refractive index of the nanostructures and higher than the refractive index of the overlying medium (e.g., air). Advantageously, the antireflection coatings may reduce or eliminate ghost images in an augmented reality display in which the metasurface is incorporated.
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23.发明公开公开(公告)号：US20230168425A1
公开(公告)日：2023-06-01
申请号：US18154833
申请日：2023-01-15
Applicant: Magic Leap, Inc.
Inventor： Mauro Melli , Mohammadreza Khorasaninejad , Christophe Peroz , Pierre St. Hilaire , Dianmin Lin
CPC classification number: G02B6/0063 , G06T19/006 , G02B6/0055 , G02B6/0056 , G02B6/26 , G02B27/0172 , G02B27/0101 , G02B27/01 , G02B27/017 , G02B27/0093 , G02B27/0944 , G02B2027/0178
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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公开(公告)号：US20230129889A1
公开(公告)日：2023-04-27
申请号：US18089194
申请日：2022-12-27
Applicant: Magic Leap, Inc.
Inventor： Brian T. Schowendgerdt , Dianmin Lin , Pierre St. Hilaire
IPC: F21V8/00 , G06F3/01 , G06F3/147 , G09G3/00 , G09G3/20 , G02B27/01 , G02B7/00 , G02B5/30 , G02B27/00 , G02B27/28 , G02B27/10 , H04N9/31 , G02C5/16 , G02C11/00 , G06F1/16 , G06F1/20 , H05K7/20 , G02B5/18
Abstract: An eyepiece includes a planar waveguide having a front surface and a back surface. The eyepiece also includes a grating coupled to the back surface of the planar waveguide and configured to diffract a first portion of the light propagating in the planar waveguide out of a plane of the planar waveguide toward a first direction and to diffract a second portion of the light propagating in the planar waveguide out of the plane of the planar waveguide toward a second direction opposite to the first direction and a wavelength-selective reflector coupled to the front surface of the planar waveguide. The wavelength-selective reflector comprises a multilevel metasurface comprising a plurality of spaced apart protrusions having a pitch and formed of a first optically transmissive material and a second optically transmissive material disposed between the spaced apart protrusions.
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公开(公告)号：US20220197040A1
公开(公告)日：2022-06-23
申请号：US17691868
申请日：2022-03-10
Applicant: Magic Leap, Inc.
Inventor： Pierre St. Hilaire , Mohammadreza Khorasaninejad , Dianmin Lin
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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Patent Agency Ranking
公开(公告)号：US20220163709A1
公开(公告)日：2022-05-26
申请号：US17666224
申请日：2022-02-07
Applicant: Magic Leap, Inc.
Inventor： Dianmin Lin , Michael Anthony Klug , Pierre St. Hilaire , Mauro Melli , Christophe Peroz , Evgeni Poliakov
Abstract: Metasurfaces provide compact optical elements in head-mounted display systems to, e.g., incouple light into or outcouple light out of a waveguide. The metasurfaces may be formed by a plurality of repeating unit cells, each unit cell comprising two sets or more of nanobeams elongated in crossing directions: one or more first nanobeams elongated in a first direction and a plurality of second nanobeams elongated in a second direction. As seen in a top-down view, the first direction may be along a y-axis, and the second direction may be along an x-axis. The unit cells may have a periodicity in the range of 10 nm to 1 μm, including 10 nm to 500 nm or 300 nm to 500 nm. Advantageously, the metasurfaces provide diffraction of light with high diffraction angles and high diffraction efficiencies over a broad range of incident angles and for incident light with circular polarization.
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公开(公告)号：US11243338B2
公开(公告)日：2022-02-08
申请号：US16672983
申请日：2019-11-04
Applicant: Magic Leap, Inc.
Inventor： Dianmin Lin , Michael Anthony Klug , Pierre St. Hilaire , Mauro Melli , Christophe Peroz , Evgeni Poliakov
Abstract: Metasurfaces provide compact optical elements in head-mounted display systems to, e.g., incouple light into or outcouple light out of a waveguide. The metasurfaces may be formed by a plurality of repeating unit cells, each unit cell comprising two sets or more of nanobeams elongated in crossing directions: one or more first nanobeams elongated in a first direction and a plurality of second nanobeams elongated in a second direction. As seen in a top-down view, the first direction may be along a y-axis, and the second direction may be along an x-axis. The unit cells may have a periodicity in the range of 10 nm to 1 μm, including 10 nm to 500 nm or 300 nm to 500 nm. Advantageously, the metasurfaces provide diffraction of light with high diffraction angles and high diffraction efficiencies over a broad range of incident angles and for incident light with circular polarization.
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公开(公告)号：US20210055557A1
公开(公告)日：2021-02-25
申请号：US16919718
申请日：2020-07-02
Applicant: Magic Leap, Inc.
Inventor： Pierre St. Hilaire , Mohammadreza Khorasaninejad , Dianmin Lin
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：US20180052277A1
公开(公告)日：2018-02-22
申请号：US15683644
申请日：2017-08-22
Applicant: Magic Leap, Inc.
Inventor： Brian T. Schowengerdt , Dianmin Lin , Pierre St. Hilaire
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：US12298550B2
公开(公告)日：2025-05-13
申请号：US18089194
申请日：2022-12-27
Applicant: Magic Leap, Inc.
Inventor： Brian T. Schowengerdt , Dianmin Lin , Pierre St. Hilaire
IPC: F21V8/00 , G02B1/00 , G02B5/18 , G02B5/30 , G02B6/293 , G02B6/34 , G02B7/00 , G02B27/00 , G02B27/01 , G02B27/10 , G02B27/28 , G02C11/00 , G06F1/16 , G06F1/20 , G06F3/01 , G06F3/147 , G09G3/00 , G09G3/20 , H04N9/31 , B29D11/00 , G02B27/30
Abstract: An eyepiece includes a planar waveguide having a front surface and a back surface. The eyepiece also includes a grating coupled to the back surface of the planar waveguide and configured to diffract a first portion of the light propagating in the planar waveguide out of a plane of the planar waveguide toward a first direction and to diffract a second portion of the light propagating in the planar waveguide out of the plane of the planar waveguide toward a second direction opposite to the first direction and a wavelength-selective reflector coupled to the front surface of the planar waveguide. The wavelength-selective reflector comprises a multilevel metasurface comprising a plurality of spaced apart protrusions having a pitch and formed of a first optically transmissive material and a second optically transmissive material disposed between the spaced apart protrusions.
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