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：US10444419B2

公开(公告)日：2019-10-15

申请号：US15683702

申请日：2017-08-22

Applicant: Magic Leap, Inc.

Inventor： Samarth Bhargava ,  Robert D. TeKolste ,  Victor K. Liu ,  Christophe Peroz ,  Pierre St. Hilaire ,  Evgeni Poliakov ,  Jason Schaefer ,  Mauro Melli ,  Melanie West ,  Kang Luo ,  Vikramjit Singh ,  Frank Y. Xu

IPC: F21V8/00 ,  G02B5/30 ,  G02B5/18 ,  G02B27/00 ,  G02B27/28 ,  G02B27/01 ,  H04N9/31 ,  G02C11/00 ,  G02C5/16 ,  G06F1/16 ,  G06F1/20 ,  G09G3/00 ,  G02B27/10 ,  H05K7/20 ,  G06F3/01 ,  G06F3/147 ,  G09G3/20 ,  G02B27/30

Abstract: A device includes an input coupling grating having a first grating structure characterized by a first set of grating parameters. The input coupling grating is configured to receive light from a light source. The device also includes an expansion grating having a second grating structure characterized by a second set of grating parameters varying in at least two dimensions. The second grating structure is configured to receive light from the input coupling grating. The device further includes an output coupling grating having a third grating structure characterized by a third set of grating parameters. The output coupling grating is configured to receive light from the expansion grating and to output light to a viewer.

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.