公开(公告)号：US20220128817A1

公开(公告)日：2022-04-28

申请号：US17437722

申请日：2020-03-11

Applicant: Magic Leap, Inc.

Inventor： 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: G02B27/01 ,  F21V8/00

Abstract: 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.

公开(公告)号：US20210364805A1

公开(公告)日：2021-11-25

申请号：US17339581

申请日：2021-06-04

Applicant: Magic Leap, Inc.

Inventor： Robert D. Tekolste ,  Victor K. Liu

IPC: G02B27/01 ,  G02B27/00 ,  G02B5/18 ,  G02B27/42

Abstract: An eyepiece for use in front of an eye of a viewer includes a waveguide configured to propagate light therein, and a diffractive optical element optically coupled to the waveguide. The diffractive optical element includes a plurality of first ridges protruding from a surface of the waveguide. Each of the plurality of first ridges has a first height and a first width. The diffractive optical element further includes a plurality of second ridges. Each of the plurality of second ridges protrudes from a respective first ridge and has a second height greater than the first height and a second width less than the first width. The diffractive optical element is configured to diffract a portion of a light beam incident on the diffractive optical element toward the eye as a first order transmission.

公开(公告)号：US11054655B2

公开(公告)日：2021-07-06

申请号：US16837839

申请日：2020-04-01

Applicant: Magic Leap, Inc.

Inventor： Robert D. Tekolste ,  Victor K. Liu

IPC: G02B27/01 ,  G02B27/00 ,  G02B5/18 ,  G02B27/42 ,  G02B6/34

Abstract: An eyepiece for use in front of an eye of a viewer includes a waveguide configured to propagate light therein, and a diffractive optical element optically coupled to the waveguide. The diffractive optical element includes a plurality of first ridges protruding from a surface of the waveguide. Each of the plurality of first ridges has a first height and a first width. The diffractive optical element further includes a plurality of second ridges. Each of the plurality of second ridges protrudes from a respective first ridge and has a second height greater than the first height and a second width less than the first width. The diffractive optical element is configured to diffract a portion of a light beam incident on the diffractive optical element toward the eye as a first order transmission.

公开(公告)号：US10677969B2

公开(公告)日：2020-06-09

申请号：US15062090

申请日：2016-03-05

Applicant: Magic Leap, Inc.

Inventor： Robert D. Tekolste ,  Michael A. Klug ,  Paul M. Greco ,  Brian T. Schowengerdt

IPC: G02B5/18 ,  B29D11/00 ,  G02B27/01

Abstract: Disclosed is an improved diffraction structure for 3D display systems. The improved diffraction structure includes an intermediate layer that resides between a waveguide substrate and a top grating surface. The top grating surface comprises a first material that corresponds to a first refractive index value, the underlayer comprises a second material that corresponds to a second refractive index value, and the substrate comprises a third material that corresponds to a third refractive index value. According to additional embodiments, improved approaches are provided to implement deposition of imprint materials onto a substrate, which allow for very precise distribution and deposition of different imprint patterns onto any number of substrate surfaces.

公开(公告)号：US10234687B2

公开(公告)日：2019-03-19

申请号：US15819887

申请日：2017-11-21

Applicant: MAGIC LEAP, INC.

Inventor： William Hudson Welch ,  Robert D. Tekolste ,  Hyunsun Chung ,  Hui-Chuan Cheng

IPC: G02B27/01 ,  G06F3/01 ,  G02B3/14

Abstract: Configurations are disclosed for presenting virtual reality and augmented reality experiences to users. The system may comprise a spatial light modulator operatively coupled to an image source for projecting light associated with one or more frames of image data, and a variable focus element (VFE) for varying a focus of the projected light such that a first frame of image data is focused at a first depth plane, and a second frame of image data is focused at a second depth plane, and wherein a distance between the first depth plane and the second depth plane is fixed.

公开(公告)号：US20180341113A1

公开(公告)日：2018-11-29

申请号：US16037983

申请日：2018-07-17

Applicant: Magic Leap, Inc.

Inventor： Robert D. Tekolste ,  Victor K. Liu

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

Abstract: An eyepiece for use in front of an eye of a viewer includes a waveguide configured to propagate light therein, and a diffractive optical element optically coupled to the waveguide. The diffractive optical element includes a plurality of first ridges protruding from a surface of the waveguide. Each of the plurality of first ridges has a first height and a first width. The diffractive optical element further includes a plurality of second ridges. Each of the plurality of second ridges protrudes from a respective first ridge and has a second height greater than the first height and a second width less than the first width. The diffractive optical element is configured to diffract a portion of a light beam incident on the diffractive optical element toward the eye as a first order transmission.