公开(公告)号：US20210396987A1

公开(公告)日：2021-12-23

申请号：US17290079

申请日：2019-10-30

申请人： MAGIC LEAP, INC.

发明人： Ling LI ,  Chieh CHANG ,  Sharad D. BHAGAT ,  Christophe PEROZ ,  William K. JONES, Jr. ,  Xiaopei DENG

IPC分类号： G02B25/00 ,  G02B6/132 ,  G02B6/12 ,  G02B27/00

摘要： Fabrication of augmented reality (AR) and mixed reality (MR) polymer eyepiece assemblies and the resulting AR/MR polymer eyepiece assemblies may include one or more features, separately or in any appropriate combination, to compensate for expected deformation and to maintain substantially uniform gaps between polymer layers. Such features include fabricating polymer eyepiece assemblies with components having coefficients of thermal expansion (CTE) that are substantially the same; modifying the surface chemistry or structure of one or more polymer layers to increase hydrophobicity or omniphobicity of the polymer layer; disposing adhesive between adjacent polymer layers in continuous and/or extended configurations; and disposing microspheres of different sizes at selected locations between polymer layers.

公开(公告)号：US20240319506A1

公开(公告)日：2024-09-26

申请号：US18679328

申请日：2024-05-30

申请人： Magic Leap, Inc.

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

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

CPC分类号： G02B27/0172 ,  G02B6/0011 ,  G02B6/1223 ,  G02B6/13 ,  G02B27/0081 ,  G02B6/10 ,  G02B2027/0174

摘要： 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：US20230341692A1

公开(公告)日：2023-10-26

申请号：US18319745

申请日：2023-05-18

申请人： Magic Leap, Inc.

发明人： 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分类号： G02B27/01 ,  G02B27/42 ,  F21V8/00 ,  G02B27/10 ,  G02B6/26 ,  G06T19/00

CPC分类号： G02B27/0172 ,  G02B6/0026 ,  G02B6/26 ,  G02B27/1046 ,  G02B27/4233 ,  G06T19/006 ,  G02B6/10

摘要： 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.

公开(公告)号：US20220075118A1

公开(公告)日：2022-03-10

申请号：US17416248

申请日：2019-12-20

申请人： Magic Leap, Inc.

发明人： Xiaopei DENG ,  Vikramjit SINGH ,  Shuqiang YANG ,  Kang LUO ,  Nai-Wen PI ,  Frank Y. XU

IPC分类号： G02B6/13 ,  G02B6/122 ,  G02B27/01

摘要： 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：US20240255763A1

公开(公告)日：2024-08-01

申请号：US18622925

申请日：2024-03-30

申请人： Magic Leap, Inc.

发明人： 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分类号： G02B27/01 ,  G02B6/34

CPC分类号： G02B27/0172 ,  G02B6/0016 ,  G02B6/0036 ,  G02B6/0076 ,  G02B6/34 ,  G02B2027/0118 ,  G02B2027/0125

摘要： 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. A waveguide may be transparent and may comprise a substrate comprising a first material having a first refractive index greater than about 2.0. Diffractive features may be formed, on the substrate, of a second material having a second refractive index that is lower than the first refractive index. A third material may be disposed over the diffractive features and may have a third refractive index that is higher than the second refractive index.