公开(公告)号：US11609365B2

公开(公告)日：2023-03-21

申请号：US16535965

申请日：2019-08-08

Applicant: Magic Leap, Inc.

Inventor： Mauro Melli ,  Christophe Peroz

IPC: G02B5/18 ,  G02B6/124 ,  G02B6/136 ,  G02B27/01 ,  G02B27/42 ,  H01J37/305 ,  H01J37/317 ,  G02B6/12

Abstract: A method of fabricating non-uniform gratings includes implanting different densities of ions into corresponding areas of a substrate, patterning, e.g., by lithography, a resist layer on the substrate, etching the substrate with the patterned resist layer, and then removing the resist layer from the substrate, leaving the substrate with at least one grating having non-uniform characteristics associated with the different densities of ions implanted in the areas. The method can further include using the substrate having the grating as a mold to fabricate a corresponding grating having corresponding non-uniform characteristics, e.g., by nanoimprint lithography.

公开(公告)号：US11467409B2

公开(公告)日：2022-10-11

申请号：US17105241

申请日：2020-11-25

Applicant: Magic Leap, Inc.

Inventor： Mauro Melli

IPC: F21V8/00 ,  G02B27/01

Abstract: In some embodiments, a display device includes one or more waveguides having a vapor deposited light absorbing film on edges of the waveguide to mitigate ghost images. In some embodiments, the film is formed directly on the edge of the waveguide by a vapor deposition, such as an evaporative deposition process. In some embodiments, the light absorbing films may comprise carbon, for example carbon in the form of one or more allotropes of carbon, such as fullerenes, or black silicon.

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

IPC: F21V8/00 ,  G02B6/00 ,  G02B6/293 ,  G02B27/01

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：US20210341775A1

公开(公告)日：2021-11-04

申请号：US17379895

申请日：2021-07-19

Applicant: Magic Leap, Inc.

Inventor： Chulwoo Oh ,  Mauro Melli ,  Christophe Peroz ,  Vikramjit Singh ,  Frank Xu ,  Michael Anthony Klug

IPC: G02F1/1347 ,  G02F1/29 ,  G02B5/18 ,  B81C1/00 ,  G02B5/30 ,  G02B3/00

Abstract: An optical device includes a liquid crystal layer having a first plurality of liquid crystal molecules arranged in a first pattern and a second plurality of liquid crystal molecules arranged in a second pattern. The first and the second pattern are separated from each other by a distance of about 20 nm and about 100 nm along a longitudinal or a transverse axis of the liquid crystal layer. The first and the second plurality of liquid crystal molecules are configured as first and second grating structures that can redirect light of visible or infrared wavelengths.

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

IPC: F21V8/00 ,  G06T19/00

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.

公开(公告)号：US20200041712A1

公开(公告)日：2020-02-06

申请号：US16596630

申请日：2019-10-08

Applicant: Magic Leap, Inc.

Inventor： Christophe Peroz ,  Mauro Melli ,  Vikramjit Singh ,  David Jurbergs ,  Jeffrey Dean Schmulen ,  Zongxing Wang ,  Shuqiang Yang ,  Frank Y. Xu ,  Kang Luo ,  Marlon Edward Menezes ,  Michael Nevin Miller

IPC: F21V8/00 ,  G02B27/01 ,  G02B7/00 ,  G06F3/01 ,  G06F3/147 ,  G09G3/00 ,  G09G3/20 ,  G02B5/30 ,  G02B27/00 ,  G02B27/28 ,  G02B27/10 ,  H04N9/31 ,  G02C5/16 ,  G02C11/00 ,  G06F1/16 ,  G06F1/20 ,  H05K7/20 ,  G02B5/18

Abstract: A method of manufacturing a waveguide having a combination of a binary grating structure and a blazed grating structure includes cutting a substrate off-axis, depositing a first layer on the substrate, and depositing a resist layer on the first layer. The resist layer includes a pattern. The method also includes etching the first layer in the pattern using the resist layer as a mask. The pattern includes a first region and a second region. The method further includes creating the binary grating structure in the substrate in the second region and creating the blazed grating structure in the substrate in the first region.

公开(公告)号：US10444419B2

公开(公告)日：2019-10-15

申请号：US15683702

申请日：2017-08-22

Applicant: Magic Leap, Inc.

Inventor： Samarth Bhargava ,  Robert D. TeKolste ,  Victor K. Liu ,  Christophe Peroz ,  Pierre St. Hilaire ,  Evgeni Poliakov ,  Jason Schaefer ,  Mauro Melli ,  Melanie West ,  Kang Luo ,  Vikramjit Singh ,  Frank Y. Xu

IPC: F21V8/00 ,  G02B5/30 ,  G02B5/18 ,  G02B27/00 ,  G02B27/28 ,  G02B27/01 ,  H04N9/31 ,  G02C11/00 ,  G02C5/16 ,  G06F1/16 ,  G06F1/20 ,  G09G3/00 ,  G02B27/10 ,  H05K7/20 ,  G06F3/01 ,  G06F3/147 ,  G09G3/20 ,  G02B27/30

Abstract: A device includes an input coupling grating having a first grating structure characterized by a first set of grating parameters. The input coupling grating is configured to receive light from a light source. The device also includes an expansion grating having a second grating structure characterized by a second set of grating parameters varying in at least two dimensions. The second grating structure is configured to receive light from the input coupling grating. The device further includes an output coupling grating having a third grating structure characterized by a third set of grating parameters. The output coupling grating is configured to receive light from the expansion grating and to output light to a viewer.

公开(公告)号：US20180143470A1

公开(公告)日：2018-05-24

申请号：US15795067

申请日：2017-10-26

Applicant: MAGIC LEAP, INC.

Inventor： Chulwoo Oh ,  Mauro Melli ,  Christophe Peroz ,  Vikramjit Singh ,  Frank Xu ,  Michael Anthony Klug

IPC: G02F1/1347

CPC classification number: G02F1/1347 ,  B81C1/0046 ,  B82Y20/00 ,  G02B3/00 ,  G02F1/29 ,  G02F2001/133726 ,  G02F2203/24 ,  G02F2203/28

Abstract: An optical device includes a liquid crystal layer having a first plurality of liquid crystal molecules arranged in a first pattern and a second plurality of liquid crystal molecules arranged in a second pattern. The first and the second pattern are separated from each other by a distance of about 20 nm and about 100 nm along a longitudinal or a transverse axis of the liquid crystal layer. The first and the second plurality of liquid crystal molecules are configured as first and second grating structures that can redirect light of visible or infrared wavelengths.

公开(公告)号：US11840034B2

公开(公告)日：2023-12-12

申请号：US17186902

申请日：2021-02-26

Applicant: Magic Leap, Inc.

Inventor： Mauro Melli ,  Chieh Chang ,  Ling Li ,  Melanie Maputol West ,  Christophe Peroz ,  Ali Karbasi ,  Sharad D. Bhagat ,  Brian George Hill

IPC: B29D11/00 ,  B29C33/42 ,  G02B6/136 ,  G02B6/12

CPC classification number: B29D11/00682 ,  B29C33/424 ,  G02B6/136 ,  G02B2006/12107 ,  G02B2006/12173 ,  G02B2006/12176

Abstract: Methods are disclosed for fabricating molds for forming eyepieces having waveguides with integrated spacers. The molds are formed by etching deep holes (e.g., 5 μm to 1000 μm deep) into a substrate using a wet etch or dry etch. The etch masks for defining the holes may be formed with a thick metal layer and/or multiple layers of different metals. A resist layer may be disposed over the etch mask. The resist layer may be patterned to form a pattern of holes, the pattern may be transferred to the etch mask, and the etch mask may be used to transfer the pattern into the underlying substrate. The patterned substrate may be utilized as a mold onto which a flowable polymer may be introduced and allowed to harden. Hardened polymer in the holes may form integrated spacers. The hardened polymer may be removed from the mold to form a waveguide with integrated spacers.

公开(公告)号：US11693282B2

公开(公告)日：2023-07-04

申请号：US17379895

申请日：2021-07-19

Applicant: Magic Leap, Inc.

Inventor： Chulwoo Oh ,  Mauro Melli ,  Christophe Peroz ,  Vikramjit Singh ,  Frank Xu ,  Michael Anthony Klug

IPC: G02F1/1347 ,  G02F1/29 ,  G02B5/18 ,  G02B6/00 ,  B81C1/00 ,  G02B5/30 ,  G02B27/00 ,  G02B27/01 ,  G02B3/00 ,  G02B27/10 ,  G02B30/36 ,  G02F1/1337

CPC classification number: G02F1/1347 ,  G02B5/1809 ,  G02B5/1847 ,  G02F1/29 ,  B81C1/0046 ,  G02B3/00 ,  G02B5/1833 ,  G02B5/1861 ,  G02B5/3016 ,  G02B5/3083 ,  G02B27/0081 ,  G02B27/0093 ,  G02B27/1006 ,  G02B30/36 ,  G02B2006/0098 ,  G02B2027/0134 ,  G02B2027/0174 ,  G02F1/133726 ,  G02F2203/24 ,  G02F2203/28

Abstract: An optical device includes a liquid crystal layer having a first plurality of liquid crystal molecules arranged in a first pattern and a second plurality of liquid crystal molecules arranged in a second pattern. The first and the second pattern are separated from each other by a distance of about 20 nm and about 100 nm along a longitudinal or a transverse axis of the liquid crystal layer. The first and the second plurality of liquid crystal molecules are configured as first and second grating structures that can redirect light of visible or infrared wavelengths.