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公开(公告)号：US11971549B2
公开(公告)日：2024-04-30
申请号：US16979486
申请日：2019-03-12
Applicant: Magic Leap, Inc.
Inventor： Michael Anthony Klug , Kevin Richard Curtis , Vikramjit Singh , Kang Luo , Michal Beau Dennison Vaughn , Samarth Bhargava , Shuqiang Yang , Michael Nevin Miller , Frank Y. Xu , Kevin Messer , Robert D. Tekolste
CPC classification number: G02B27/0172 , G02B6/0023 , G02B6/005 , G02B6/0065 , G02B6/0076 , G02B25/001 , G02B27/0149 , G02B5/201 , G02B2027/012 , G02B2027/0123 , G02B2027/0154 , G02B2027/0178 , G02B2027/0185
Abstract: Very high refractive index (n>2.2) lightguide substrates enable the production of 70° field of view eyepieces with all three color primaries in a single eyepiece layer. Disclosed herein are viewing optics assembly architectures that make use of such eyepieces to reduce size and cost, simplifying manufacturing and assembly, and better-accommodating novel microdisplay designs.
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公开(公告)号：US11754841B2
公开(公告)日：2023-09-12
申请号：US17576488
申请日：2022-01-14
Applicant: Magic Leap, Inc.
Inventor： Samarth Bhargava , Victor Kai Liu , Kevin Messer
CPC classification number: G02B27/0172 , G02B27/283 , G06T19/006 , G02B2027/0118
Abstract: An eyepiece waveguide for an augmented reality display system. The eyepiece waveguide can include an input coupling grating (ICG) region. The ICG region can couple an input beam into the substrate of the eyepiece waveguide as a guided beam. A first combined pupil expander-extractor (CPE) grating region can be formed on or in a surface of the substrate. The first CPE grating region can receive the guided beam, create a first plurality of diffracted beams at a plurality of distributed locations, and out-couple a first plurality of output beams. The eyepiece waveguide can also include a second CPE grating region formed on or in the opposite surface of the substrate. The second CPE grating region can receive the guided beam, create a second plurality of diffracted beams at a plurality of distributed locations, and out-couple a second plurality of output beams.
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公开(公告)号：US20230258940A1
公开(公告)日：2023-08-17
申请号：US18303459
申请日：2023-04-19
Applicant: Magic Leap, Inc.
Inventor： Kevin Messer , Joshua Naaman Haddock , Hui-Chuan Cheng , Vaibhav Mathur , Clinton Carlisle
IPC: G02B27/01 , G02B27/28 , G02F1/13363 , G02F1/1337 , G02F1/01 , G02F1/1335 , G02F1/1343 , G02F1/139 , G02B25/00
CPC classification number: G02B27/0172 , G02B27/281 , G02F1/133638 , G02F1/133761 , G02F1/133631 , G02F1/0136 , G02F1/133531 , G02F1/134309 , G02F1/133749 , G02F1/1393 , G02B25/001 , G02F2413/10 , G02B2027/0178 , G02F2413/01 , G02B2027/011
Abstract: A wearable display system includes an eyepiece stack having a world side and a user side opposite the world side. During use, a user positioned on the user side views displayed images delivered by the wearable display system via the eyepiece stack which augment the user's field of view of the user's environment. The system also includes an optical attenuator arranged on the world side of the of the eyepiece stack, the optical attenuator having a layer of a birefringent material having a plurality of domains each having a principal optic axis oriented in a corresponding direction different from the direction of other domains. Each domain of the optical attenuator reduces transmission of visible light incident on the optical attenuator for a corresponding different range of angles of incidence.
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公开(公告)号：US20230213692A1
公开(公告)日：2023-07-06
申请号：US18181389
申请日：2023-03-09
Applicant: Magic Leap, Inc.
Inventor： Vikramjit Singh , Kang Luo , Xiaopei Deng , Shuqiang Yang , Frank Y. Xu , Kevin Messer
CPC classification number: G02B5/1842 , G02B6/0026 , G02B27/0172 , G02B2027/0178 , G02B6/0076
Abstract: Diffraction gratings provide optical elements in head-mounted display systems to, e.g., incouple light into or out-couple light out of a waveguide. These diffraction gratings may be configured to have reduced polarization sensitivity. Such gratings may, for example, incouple or outcouple light of different polarizations with similar level of efficiency. The diffraction gratings and waveguides may include a transmissive layer and a metal layer. The diffraction grating may comprises a blazed grating.
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Patent Agency Ranking
55.发明授权公开(公告)号：US11693246B2
公开(公告)日：2023-07-04
申请号：US17379919
申请日：2021-07-19
Applicant: Magic Leap, Inc.
Inventor： Jeffrey Dean Schmulen , Neal Paul Ricks , Samarth Bhargava , Kevin Messer , Victor Kai Liu , Matthew Grant Dixon , Xiaopei Deng , Marlon Edward Menezes , Shuqiang Yang , Vikramjit Singh , Kang Luo , Frank Y. Xu
CPC classification number: G02B27/0172 , G02B6/0026 , G02B6/26 , G02B27/1046 , G02B27/4233 , G06T19/006 , G02B6/10
Abstract: Display devices include waveguides with in-coupling optical elements that mitigate re-bounce of in-coupled light to improve overall in-coupling efficiency and/or uniformity. A waveguide receives light from a light source and/or projection optics and includes an in-coupling optical element that in-couples the received light to propagate by total internal reflection in a propagation direction within the waveguide. Once in-coupled into the waveguide the light may undergo re-bounce, in which the light reflects off a waveguide surface and, after the reflection, strikes the in-coupling optical element. Upon striking the in-coupling optical element, the light may be partially absorbed and/or out-coupled by the optical element, thereby effectively reducing the amount of in-coupled light propagating through the waveguide. The in-coupling optical element can be truncated or have reduced diffraction efficiency along the propagation direction to reduce the occurrence of light loss due to re-bounce of in-coupled light, resulting in less in-coupled light being prematurely out-coupled and/or absorbed during subsequent interactions with the in-coupling optical element.
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公开(公告)号：US20220128817A1
公开(公告)日：2022-04-28
申请号：US17437722
申请日：2020-03-11
Applicant: Magic Leap, Inc.
Inventor： Vikramjit Singh , Kang Luo , Michal Beau Dennison Vaughn , Samarth Bhargava , Shuqiang Yang , Michael Nevin Miller , Frank Y. Xu , Michael Anthony Klug , Kevin Messer , Robert D. Tekolste , Xiaopei Deng , Xiao Li
Abstract: Waveguides comprising materials with refractive index greater than or equal to 1.8 and methods of patterning waveguides are disclosed. Patterned waveguides comprising materials with refractive index greater than or equal to 1.8 can be incorporated in display devices, such as, for example wearable display devices to project virtual images to a viewer.
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公开(公告)号：US20210405402A1
公开(公告)日：2021-12-30
申请号：US17359146
申请日：2021-06-25
Applicant: Magic Leap, Inc.
Inventor： Hui-Chuan Cheng , David Manly , Vaibhav Mathur , Joshua Naaman Haddock , Kevin Messer , Clinton Carlisle
IPC: G02F1/137 , G02B25/00 , G02F1/13363 , G02F1/1335 , G02F1/01 , G02F1/1347 , G02B27/01
Abstract: A method for displaying an image using a wearable display system including directing display light from a display towards a user through an eyepiece to project images in the user's field of view, determining a relative location between an ambient light source and the eyepiece, and adjusting an attenuation of ambient light from the ambient light source through the eyepiece depending on the relative location between the ambient light source and the eyepiece.
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58.发明授权公开(公告)号：US11067808B2
公开(公告)日：2021-07-20
申请号：US16520217
申请日：2019-07-23
Applicant: Magic Leap, Inc.
Inventor： Jeffrey Dean Schmulen , Neal Paul Ricks , Samarth Bhargava , Kevin Messer , Victor Kai Liu , Matthew Grant Dixon , Xiaopei Deng , Marlon Edward Menezes , Shuqiang Yang , Vikramjit Singh , Kang Luo , Frank Y. Xu
Abstract: Display devices include waveguides with in-coupling optical elements that mitigate re-bounce of in-coupled light to improve overall in-coupling efficiency and/or uniformity. A waveguide receives light from a light source and/or projection optics and includes an in-coupling optical element that in-couples the received light to propagate by total internal reflection in a propagation direction within the waveguide. Once in-coupled into the waveguide the light may undergo re-bounce, in which the light reflects off a waveguide surface and, after the reflection, strikes the in-coupling optical element. Upon striking the in-coupling optical element, the light may be partially absorbed and/or out-coupled by the optical element, thereby effectively reducing the amount of in-coupled light propagating through the waveguide. The in-coupling optical element can be truncated or have reduced diffraction efficiency along the propagation direction to reduce the occurrence of light loss due to re-bounce of in-coupled light, resulting in less in-coupled light being prematurely out-coupled and/or absorbed during subsequent interactions with the in-coupling optical element.
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公开(公告)号：US20210116712A1
公开(公告)日：2021-04-22
申请号：US17072510
申请日：2020-10-16
Applicant: Magic Leap, Inc.
Inventor： David Manly , Kevin Messer , Vaibhav Mathur , Clinton Carlisle
IPC: G02B27/28 , G02B27/01 , G02F1/137 , G02B5/30 , G02F1/1335
Abstract: A wearable display system includes an eyepiece stack having a world side and a user side opposite the world side, wherein during use a user positioned on the user side views displayed images delivered by the system via the eyepiece stack which augment the user's view of the user's environment. The wearable display system also includes an angularly selective film arranged on the world side of the of the eyepiece stack. The angularly selective film includes a polarization adjusting film arranged between pair of linear polarizers. The linear polarizers and polarization adjusting film significantly reduces transmission of visible light incident on the angularly selective film at large angles of incidence without significantly reducing transmission of light incident on the angularly selective film at small angles of incidence.
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