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.

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：US20210311298A1

公开(公告)日：2021-10-07

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

Abstract: Embodiments of the present disclosure are directed to 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 darn to restrict the wicking of the edge sealant between layers of the optical device, and venting gap (s) in the sealant and darn 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.