-
公开(公告)号：US10725223B2
公开(公告)日：2020-07-28
申请号：US15683644
申请日：2017-08-22
Applicant: Magic Leap, Inc.
Inventor： Brian T. Schowengerdt , Dianmin Lin , Pierre St. Hilaire
IPC: G02B27/01 , F21V8/00 , H04N9/31 , G06F3/01 , G06F3/147 , G09G3/00 , G09G3/20 , G02B7/00 , G02B5/30 , G02B27/00 , G02B27/28 , G02B27/10 , G02C5/16 , G02C11/00 , G06F1/16 , G06F1/20 , 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.
-
公开(公告)号：US20230417980A1
公开(公告)日：2023-12-28
申请号：US18464732
申请日：2023-09-11
Applicant: Magic Leap, Inc.
Inventor： Dianmin Lin , Mauro Melli , Pierre St. Hilaire , Christophe Peroz , Evgeni Poliakov
CPC classification number: G02B6/0076 , G02B6/0013 , G02B6/00 , G02B6/29316 , G02B27/0172 , G02B6/0026 , G02B6/0031 , G02B6/005 , G02B6/0065 , G02B6/1226
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.
-
公开(公告)号：US20230273450A1
公开(公告)日：2023-08-31
申请号：US18311097
申请日：2023-05-02
Applicant: Magic Leap, Inc.
Inventor： Dianmin Lin , Michael Anthony Klug , Pierre St. Hilaire , Mauro Melli , Christophe Peroz , Evgeni Poliakov
CPC classification number: G02B27/4205 , G02B1/002 , G02B27/4272 , G02B27/0093 , G02B1/111 , G02B5/1847 , G02B27/0172 , G02B2027/0174 , G02B2027/0185 , G02B2027/014 , G02B2027/0178 , 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.
-
公开(公告)号：US20220283438A1
公开(公告)日：2022-09-08
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 , H04N13/344 , G02B5/30 , H04N13/349 , G02B30/35
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.
-
公开(公告)号：US11231544B2
公开(公告)日：2022-01-25
申请号：US15342033
申请日：2016-11-02
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.
-
Patent Agency Ranking
公开(公告)号：US20210132390A1
公开(公告)日：2021-05-06
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.
-
公开(公告)号：US10466394B2
公开(公告)日：2019-11-05
申请号：US15880404
申请日：2018-01-25
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.
-
公开(公告)号：US20170131460A1
公开(公告)日：2017-05-11
申请号：US15342033
申请日：2016-11-02
Applicant: Magic Leap, Inc.
Inventor： Dianmin Lin , Mauro Melli , Pierre St. Hilaire , Christophe Peroz , Evgeni Poliakov
IPC: F21V8/00
CPC classification number: G02B6/0076 , G02B5/1823 , G02B6/00 , G02B6/0013 , G02B6/0026 , G02B6/0031 , G02B6/005 , G02B6/0065 , G02B6/1226 , G02B6/29316 , G02B27/0172 , 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.
-
公开(公告)号：US12248166B2
公开(公告)日：2025-03-11
申请号：US18464732
申请日：2023-09-11
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.
-
公开(公告)号：US12105289B2
公开(公告)日：2024-10-01
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
CPC classification number: G02B27/0172 , G02B6/10 , G02B6/26 , G02B27/0101 , G02B2027/0178
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.
-
-
-
-
-
-
-
-
-
Search Results
41
records
(took 0.025 seconds)
