公开(公告)号：US11703755B2

公开(公告)日：2023-07-18

申请号：US17364498

申请日：2021-06-30

Applicant: Magic Leap, Inc.

Inventor： Huihang Dong ,  Ryan Rieck ,  Thomas Mercier

IPC: G02B5/18 ,  G02B27/32 ,  G02B27/00 ,  G03F7/00 ,  G03F9/00 ,  G06T7/73 ,  G06T7/00 ,  G06V10/44

CPC classification number: G03F7/0002 ,  G02B5/1852 ,  G02B5/1861 ,  G02B27/0012 ,  G02B27/32 ,  G03F9/7042 ,  G06T7/0006 ,  G06T7/73 ,  G06V10/44 ,  G06T2207/30204

Abstract: Methods and apparatuses related to fiducial designs for fiducial markers on glass substrates, or other transparent or translucent substrates, are disclosed. Example fiducial designs can facilitate visual recognition by enhancing edge detection in visual perception. In example fiducial designs, optical features on glass substrates can re-direct light so as to present a bright image region. Such optical features can include surface relief patterns formed in a coating on the surface of glass substrates. An exemplary method for manufacturing the fiducial markers can involve transfers of a fiducial design across a master mold or plate, a submaster mold or plate, and a target glass substrate. A fiducial marker can facilitate the use of the substrate in a variety of applications, including machine vision systems that facilitate automated performance of manufacturing processes on input working material.

公开(公告)号：US11079522B1

公开(公告)日：2021-08-03

申请号：US15993408

申请日：2018-05-30

Applicant: Magic Leap, Inc.

Inventor： Huihang Dong ,  Ryan Rieck ,  Thomas Mercier

IPC: G02B27/32 ,  G02B5/18 ,  G02B27/00 ,  G03F9/00 ,  G06K9/62 ,  G06T7/73 ,  G06T7/00 ,  G03F7/00

Abstract: Methods and apparatuses related to fiducial designs for fiducial markers on glass substrates, or other transparent or translucent substrates, are disclosed. Example fiducial designs can facilitate visual recognition by enhancing edge detection in visual perception. In example fiducial designs, optical features on glass substrates can re-direct light so as to present a bright image region. Such optical features can include surface relief patterns formed in a coating on the surface of glass substrates. An exemplary method for manufacturing the fiducial markers can involve transfers of a fiducial design across a master mold or plate, a submaster mold or plate, and a target glass substrate. A fiducial marker can facilitate the use of the substrate in a variety of applications, including machine vision systems that facilitate automated performance of manufacturing processes on input working material.

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：US11199719B2

公开(公告)日：2021-12-14

申请号：US17251730

申请日：2019-06-10

Applicant: MAGIC LEAP, INC.

Inventor： Huihang Dong ,  Wendong Xing ,  Thomas Mercier ,  Ryan Rieck ,  Robert D. Tekolste ,  William Hudson Welch

IPC: G02B27/18 ,  G02B1/10 ,  G03F7/00 ,  B81C1/00

Abstract: Methods and systems for qualifying a multi-layered optical stack include providing the multi-layered optical stack including a first optical layer and a second optical layer. The first optical layer includes a first pair of fiducial marks and the second optical layer includes a second pair of fiducial marks Each of the first pair are spaced laterally from each of the second pair such that the first pair and the second pair are visible through the optical stack. A first angle defined between a first reference line connecting the first pair and a global reference line is determined. A second angle defined between a second reference line connecting the second pair and the global reference line is determined. The multi-layered optical stack is qualified for use in the optical projection system based on whether a difference between the first angle and the second angle is less than a predetermined threshold.