公开(公告)号：US20240192481A1

公开(公告)日：2024-06-13

申请号：US18554623

申请日：2022-04-15

Applicant: Magic Leap, Inc.

Inventor： Ryan Jason ONG ,  Ling LI ,  Chieh CHANG ,  Sharad D. BHAGAT ,  Christophe PEROZ ,  Victor Kai LIU ,  Samarth BHARAGAVA ,  Mauro MELLI ,  Melanie Maputol WEST

IPC: G02B25/00 ,  G02B27/01

CPC classification number: G02B25/001 ,  G02B27/0172 ,  G02B2027/0178

Abstract: Eyepieces and methods of fabricating the eyepieces are disclosed. In some embodiments, the eyepiece comprises a curved cover layer and a waveguide layer for propagating light. In some embodiments, the curved cover layer comprises an antireflective feature.

公开(公告)号：US20230341597A1

公开(公告)日：2023-10-26

申请号：US18044824

申请日：2021-09-14

Applicant: Magic Leap, Inc.

Inventor： Victor Kai LIU ,  Samarth BHARGAVA ,  Brandon Michael-James BORN ,  Dianmin LIN ,  Pierre ST. HILAIRE ,  Vikramjit SINGH ,  Kang LUO

IPC: G02B5/18 ,  G02B27/09 ,  G02B27/00 ,  G02B27/01

CPC classification number: G02B5/1819 ,  G02B27/0944 ,  G02B27/0081 ,  G02B27/0101 ,  G02B27/0172 ,  G02B2027/0112

Abstract: An eyepiece waveguide for an augmented reality display system. The eyepiece waveguide can include an optically transmissive substrate with an input coupling grating (ICG) region. The ICG region can receive a beam of light and couple the beam into the substrate in a guided propagation mode. The eyepiece waveguide can also include a combined pupil expander-extractor (CPE) grating region that receives the beam of light from the ICG region and alters the propagation direction of the beam with a first interaction and out-couples the beam with a second interaction. The diffractive features of the CPE grating region can be arranged in rows and columns of alternating higher and lower quadrilateral surfaces or the diffractive features can comprise diamond shaped raised ridges. The eyepiece waveguide can also include one or more recycler grating regions.

公开(公告)号：US20250085553A1

公开(公告)日：2025-03-13

申请号：US18954311

申请日：2024-11-20

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

IPC: G02B27/01 ,  F21V8/00 ,  G02B6/10 ,  G02B6/26 ,  G02B27/10 ,  G02B27/42 ,  G06T19/00

Abstract: Display devices include waveguides with in-coupling optical elements that mitigate re-bounce of in-coupled light to improve in-coupling efficiency and/or uniformity. A waveguide receives light from a light source and includes an in-coupling optical element that in-couples the received light to propagate by total internal reflection within the waveguide. The in-coupled 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 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.

公开(公告)号：US20240201503A1

公开(公告)日：2024-06-20

申请号：US18589212

申请日：2024-02-27

Applicant: Magic Leap, Inc.

Inventor： Christophe PEROZ ,  Victor Kai LIU ,  Samarth BHARGAVA

IPC: G02B27/01 ,  G02B6/28 ,  G02B27/18 ,  G06T19/00

CPC classification number: G02B27/0172 ,  G02B6/28 ,  G02B27/18 ,  G06T19/006 ,  G02B2027/0174

Abstract: An example waveguide can include a polymer layer having substantially optically transparent material with first and second major surfaces configured such that light containing image information can propagate through the polymer layer being guided therein by reflecting from the first and second major surfaces via total internal reflection. The first surface can include first smaller and second larger surface portions monolithically integrated with the polymer layer and with each other. The first smaller surface portion can include at least a part of an in-coupling optical element configured to couple light incident on the in-coupling optical element into the polymer layer for propagation therethrough by reflection from the second major surface and the second larger surface portion of the first major surface. The waveguide can include a tilted surface portion forming at least part of an in-coupling optical element, the tilted surface portion having curvature to provide optical power.

公开(公告)号：US20230341692A1

公开(公告)日：2023-10-26

申请号：US18319745

申请日：2023-05-18

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

IPC: G02B27/01 ,  G02B27/42 ,  F21V8/00 ,  G02B27/10 ,  G02B6/26 ,  G06T19/00

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.