公开(公告)号：US20240329540A1

公开(公告)日：2024-10-03

申请号：US18734904

申请日：2024-06-05

Applicant: Magic Leap, Inc.

Inventor： Vikramjit Singh ,  Michael Nevin Miller ,  Frank Y. Xu ,  Shuqiang Yang

IPC: G03F7/00 ,  G02B1/118

CPC classification number: G03F7/7015 ,  G02B1/118 ,  G03F7/0002

Abstract: An imprint lithography method of configuring an optical layer includes selecting one or more parameters of a nanolayer to be applied to a substrate for changing an effective refractive index of the substrate and imprinting the nanolayer on the substrate to change the effective refractive index of the substrate such that a relative amount of light transmittable through the substrate is changed by a selected amount.

公开(公告)号：US20240319506A1

公开(公告)日：2024-09-26

申请号：US18679328

申请日：2024-05-30

Applicant: Magic Leap, Inc.

Inventor： Xiaopei DENG ,  Vikramjit SINGH ,  Shuqiang YANG ,  Kang LUO ,  Nai-Wen PI ,  Frank Y. Xu

IPC: G02B27/01 ,  G02B6/10 ,  G02B6/122 ,  G02B6/13 ,  G02B27/00

CPC classification number: G02B27/0172 ,  G02B6/0011 ,  G02B6/1223 ,  G02B6/13 ,  G02B27/0081 ,  G02B6/10 ,  G02B2027/0174

Abstract: Recesses are formed on a front side and a rear side of a waveguide. A solid porogen material is spun onto the front side and the rear side and fills the recesses. First front and rear cap layers are then formed on raised formations of the waveguide and on the solid porogen material. The entire structure is then heated and the solid porogen material decomposes to a porogen gas. The first front and rear cap layers are porous to allow the porogen gas to escape and air to enter into the recesses. The air maximizes a difference in refractive indices between the high-index transparent material of the waveguide and the air to promote reflection in the waveguide from interfaces between the waveguide and the air.

公开(公告)号：US12044976B2

公开(公告)日：2024-07-23

申请号：US18080490

申请日：2022-12-13

Applicant: Magic Leap, Inc.

Inventor： Vikramjit Singh ,  Michael Nevin Miller ,  Frank Y. Xu ,  Shuqiang Yang

IPC: G03F7/20 ,  G02B1/118 ,  G03F7/00

CPC classification number: G03F7/7015 ,  G02B1/118 ,  G03F7/0002

Abstract: An imprint lithography method of configuring an optical layer includes selecting one or more parameters of a nanolayer to be applied to a substrate for changing an effective refractive index of the substrate and imprinting the nanolayer on the substrate to change the effective refractive index of the substrate such that a relative amount of light transmittable through the substrate is changed by a selected amount.

公开(公告)号：US12019233B2

公开(公告)日：2024-06-25

申请号：US17262535

申请日：2019-07-22

Applicant: MAGIC LEAP, INC.

Inventor： Wendong Xing ,  Vikramjit Singh ,  Neal Paul Ricks ,  Jeffrey Dean Schmulen ,  Emory D. Carroll ,  K. Brent Binkley ,  Frank Y. Xu ,  Thomas Mercier ,  William Hudson Welch ,  Michael Anthony Klug

IPC: G02B25/00 ,  G02B5/20 ,  G02B27/00

CPC classification number: G02B25/001 ,  G02B5/208 ,  G02B27/0006 ,  G02B27/0081

Abstract: An optical device, such as an eyepiece, including multiple layers of waveguides. The optical device can include an edge sealant for reducing light contamination, a lamination dam to restrict the wicking of the edge sealant between layers of the optical device, and venting gap(s) in the sealant and dam to allow air flow between the exterior and interior of the eyepiece. The gap(s) allow outgassing from the interior of the eyepiece of unreacted polymer and/or accumulated moisture, to prevent defect accumulation caused by chemical reaction of outgassed chemicals with the (e.g., ionic, acidic, etc.) surface of the eyepiece layers. The gap(s) also prevent pressure differences which may physically deform the eyepiece over time.

公开(公告)号：US11982813B2

公开(公告)日：2024-05-14

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

IPC: G02B27/01 ,  F21V8/00 ,  G02B6/34

CPC classification number: G02B27/0172 ,  G02B6/0016 ,  G02B6/0036 ,  G02B6/0076 ,  G02B6/34 ,  G02B2027/0118 ,  G02B2027/0125

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.

公开(公告)号：US20220229304A1

公开(公告)日：2022-07-21

申请号：US17716921

申请日：2022-04-08

Applicant: Magic Leap, Inc.

Inventor： Kang Luo ,  Vikramjit Singh ,  Nai-Wen Pi ,  Shuqiang Yang ,  Frank Y. Xu

IPC: G02B27/01 ,  G02B6/34

Abstract: Blazed 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 blazed 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 blazed diffraction gratings and waveguides may be formed in a high refractive index substrate such as lithium niobate. In some implementations, the blazed diffraction gratings may include diffractive features having a feature height of 40 nm to 120 nm, for example, 80 nm. The diffractive features may be etched into the high index substrate, e.g., lithium niobate.

公开(公告)号：US11360385B1

公开(公告)日：2022-06-14

申请号：US16518547

申请日：2019-07-22

Applicant: Magic Leap, Inc.

Inventor： Huihang Dong ,  Thomas Mercier ,  Vikramjit Singh ,  Kang Luo ,  Tasha Amit Mangaldas ,  William Hudson Welch ,  Qizhen Xue ,  Frank Y. Xu

IPC: G03F7/00

Abstract: Methods and systems for manufacturing an optical waveguide include depositing an adhesion promoting layer on a substrate. Multiple curable resist droplets are dispensed on the adhesion promoting layer. The adhesion promoting layer is disposed between and contacts the substrate and the curable resist droplets. The curable resist droplets define an optical eyepiece layer such that a zero residual layer thickness (RLT) region of the optical eyepiece layer is free of the curable resist droplets. The optical eyepiece layer is incised from the substrate to form the optical waveguide.

公开(公告)号：US11327315B2

公开(公告)日：2022-05-10

申请号：US16930897

申请日：2020-07-16

Applicant: Magic Leap, Inc.

Inventor： Kang Luo ,  Vikramjit Singh ,  Nai-Wen Pi ,  Shuqiang Yang ,  Frank Y. Xu

IPC: G02B27/01 ,  G02B6/34 ,  G02B5/18

Abstract: Blazed 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 blazed 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 blazed diffraction gratings and waveguides may be formed in a high refractive index substrate such as lithium niobate. In some implementations, the blazed diffraction gratings may include diffractive features having a feature height of 40 nm to 120 nm, for example, 80 nm. The diffractive features may be etched into the high index substrate, e.g., lithium niobate.

公开(公告)号：US10823894B2

公开(公告)日：2020-11-03

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: G02B5/18 ,  G02B6/00 ,  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 ,  G02B6/34 ,  G02B6/293 ,  G02B27/30

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：US10481317B2

公开(公告)日：2019-11-19

申请号：US15683706

申请日：2017-08-22

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: G02B5/18 ,  G02B6/00 ,  F21V8/00 ,  G02B5/30 ,  G02B27/00 ,  G02B27/01 ,  G02B27/28 ,  G02B27/10 ,  H04N9/31 ,  G02C5/16 ,  G02C11/00 ,  G06F1/16 ,  G06F1/20 ,  G09G3/00 ,  H05K7/20 ,  G06F3/01 ,  G06F3/147 ,  G09G3/20 ,  G02B7/00 ,  G02B27/30

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.