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公开(公告)号：US11300791B2
公开(公告)日：2022-04-12
申请号：US16919718
申请日：2020-07-02
申请人： Magic Leap, Inc.
摘要： 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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2.发明公开公开(公告)号：US20240159956A1
公开(公告)日：2024-05-16
申请号：US18394211
申请日：2023-12-22
申请人： Magic Leap, Inc.
发明人： Christophe Peroz , Chieh Chang , Sharad D. Bhagat , Victor Kai Liu , Roy Matthew Patterson , David Carl Jurbergs , Mohammadreza Khorasaninejad , Ling Li , Michael Nevin Miller , Charles Scott Carden
CPC分类号： G02B6/0088 , B29D11/00673 , G02B6/0016 , G02B6/0036 , G02B6/0076 , G02B27/4277 , G02B5/003
摘要： In some embodiments, a head-mounted, near-eye display system comprises a stack of waveguides having integral spacers separating the waveguides. The waveguides may each include diffractive optical elements that are formed simultaneously with the spacers by imprinting. The spacers are disposed on one major surface of each of the waveguides and indentations are provided on an opposite major surface of each of the waveguides. The indentations are sized and positioned to align with the spacers, thereby forming a self-aligned stack of waveguides. Tops of the spacers may be provided with light scattering features, anti-reflective coatings, and/or light absorbing adhesive to prevent light leakage between the waveguides. As seen in a top-down view, the spacers may be elongated along the same axis as the diffractive optical elements. The waveguides may include structures (e.g., layers of light absorbing materials, rough surfaces, light out-coupling optical elements, and/or light trapping microstructures) along their edges to mitigate reflections and improve the display contrast.
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公开(公告)号：US11579353B2
公开(公告)日：2023-02-14
申请号：US17089546
申请日：2020-11-04
申请人： Magic Leap, Inc.
发明人： Mauro Melli , Mohammadreza Khorasaninejad , Christophe Peroz , Pierre St. Hilaire , Dianmin Lin
摘要： 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：US20210109278A1
公开(公告)日：2021-04-15
申请号：US17044754
申请日：2019-04-01
申请人： Magic Leap, Inc.
发明人： Christophe Peroz , Chieh Chang , Sharad D. Bhagat , Victor Kai Liu , Roy Matthew Patterson , David Carl Jurbergs , Mohammadreza Khorasaninejad , Ling Li , Michael Nevin Miller , Charles Scott Carden
摘要： In some embodiments, a head-mounted, near-eye display system comprises a stack of waveguides having integral spacers separating the waveguides. The waveguides may each include diffractive optical elements that are formed simultaneously with the spacers by imprinting. The spacers are disposed on one major surface of each of the waveguides and indentations are provided on an opposite major surface of each of the waveguides. The indentations are sized and positioned to align with the spacers, thereby forming a self-aligned stack of waveguides. Tops of the spacers may be provided with light scattering features, anti-reflective coatings, and/or light absorbing adhesive to prevent light leakage between the waveguides. As seen in a top-down view, the spacers may be elongated along the same axis as the diffractive optical elements. The waveguides may include structures (e.g., layers of light absorbing materials, rough surfaces, light out-coupling optical elements, and/or light trapping microstructures) along their edges to mitigate reflections and improve the display contrast.
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公开(公告)号：US11886000B2
公开(公告)日：2024-01-30
申请号：US17044754
申请日：2019-04-01
申请人： Magic Leap, Inc.
发明人： Christophe Peroz , Chieh Chang , Sharad D. Bhagat , Victor Kai Liu , Roy Matthew Patterson , David Carl Jurbergs , Mohammadreza Khorasaninejad , Ling Li , Michael Nevin Miller , Charles Scott Carden
CPC分类号： G02B6/0088 , B29D11/00673 , G02B6/0016 , G02B6/0036 , G02B6/0076 , G02B27/4277 , G02B5/003 , G02B27/0172
摘要： In some embodiments, a head-mounted, near-eye display system comprises a stack of waveguides having integral spacers separating the waveguides. The waveguides may each include diffractive optical elements that are formed simultaneously with the spacers by imprinting. The spacers are disposed on one major surface of each of the waveguides and indentations are provided on an opposite major surface of each of the waveguides. The indentations are sized and positioned to align with the spacers, thereby forming a self-aligned stack of waveguides. Tops of the spacers may be provided with light scattering features, anti-reflective coatings, and/or light absorbing adhesive to prevent light leakage between the waveguides. As seen in a top-down view, the spacers may be elongated along the same axis as the diffractive optical elements. The waveguides may include structures (e.g., layers of light absorbing materials, rough surfaces, light out-coupling optical elements, and/or light trapping microstructures) along their edges to mitigate reflections and improve the display contrast.
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公开(公告)号：US12105289B2
公开(公告)日：2024-10-01
申请号：US17427355
申请日：2020-01-29
申请人： Magic Leap, Inc.
发明人： Mohammadreza Khorasaninejad , Victor Kai Liu , Dianmin Lin , Christophe Peroz , Pierre St. Hilaire
CPC分类号： G02B27/0172 , G02B6/10 , G02B6/26 , G02B27/0101 , G02B2027/0178
摘要： 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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7.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
申请人： Magic Leap, Inc.
发明人： Mauro Melli , Mohammadreza Khorasaninejad , Christophe Peroz , Pierre St. Hilaire , Dianmin Lin
CPC分类号： G02B6/0063 , G06T19/006 , G02B6/0055 , G02B6/0056 , G02B6/26 , G02B27/0172 , G02B27/0101 , G02B27/01 , G02B27/017 , G02B27/0093 , G02B27/0944 , G02B2027/0178
摘要： 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：US20220197040A1
公开(公告)日：2022-06-23
申请号：US17691868
申请日：2022-03-10
申请人： Magic Leap, Inc.
摘要： 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：US20210055557A1
公开(公告)日：2021-02-25
申请号：US16919718
申请日：2020-07-02
申请人： Magic Leap, Inc.
摘要： 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：US11885969B2
公开(公告)日：2024-01-30
申请号：US17691868
申请日：2022-03-10
申请人： Magic Leap, Inc.
CPC分类号： G02B27/0172 , G02B6/0038 , G02B6/0061 , G02B6/0076 , G02B2027/0112 , G02B2027/0118
摘要： 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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