公开(公告)号：US20240273839A1

公开(公告)日：2024-08-15

申请号：US18616981

申请日：2024-03-26

申请人： Magic Leap, Inc.

发明人： Melanie Maputol WEST ,  Christophe Peroz ,  Mauro Melli

IPC分类号： G06T19/00 ,  B29D11/00 ,  G02B5/18 ,  G02B6/24 ,  G02B27/01 ,  G02B27/42 ,  G06F3/16 ,  G06T7/50

CPC分类号： G06T19/006 ,  B29D11/00 ,  G02B5/1814 ,  G02B6/24 ,  G02B27/0103 ,  G02B27/0172 ,  G02B27/4205 ,  G06F3/16 ,  G06T7/50 ,  G02B2027/0109 ,  G02B2027/0123 ,  G02B2027/014 ,  G02B2027/0178

摘要： The present disclosure relates to display systems and, more particularly, to augmented reality display systems. In one aspect, a method of fabricating an optical element includes providing a substrate having a first refractive index and transparent in the visible spectrum. The method additionally includes forming on the substrate periodically repeating polymer structures. The method further includes exposing the substrate to a metal precursor followed by an oxidizing precursor. Exposing the substrate is performed under a pressure and at a temperature such that an inorganic material comprising the metal of the metal precursor is incorporated into the periodically repeating polymer structures, thereby forming a pattern of periodically repeating optical structures configured to diffract visible light. The optical structures have a second refractive index greater than the first refractive index.

公开(公告)号：US20240192481A1

公开(公告)日：2024-06-13

申请号：US18554623

申请日：2022-04-15

申请人： Magic Leap, Inc.

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

IPC分类号： G02B25/00 ,  G02B27/01

CPC分类号： G02B25/001 ,  G02B27/0172 ,  G02B2027/0178

摘要： 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：US20240173930A1

公开(公告)日：2024-05-30

申请号：US18388660

申请日：2023-11-10

申请人： Magic Leap, Inc.

发明人： Mauro MELLI ,  Chieh Chang ,  Ling Li ,  Melanie Maputol WEST ,  Christophe Peroz ,  Ali KARBASI ,  Sharad D. Bhagat ,  Brian George HILL

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

CPC分类号： B29D11/00682 ,  B29C33/424 ,  G02B6/136 ,  G02B2006/12107 ,  G02B2006/12173 ,  G02B2006/12176

摘要： 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.