公开(公告)号：US20240418915A1

公开(公告)日：2024-12-19

申请号：US18818146

申请日：2024-08-28

Applicant: Magic Leap, Inc.

Inventor： Mauro Melli ,  Christophe Peroz ,  Melanie Maputol West

IPC: G02B5/18 ,  F21V8/00 ,  G02B27/01

Abstract: The present disclosure generally relates to display systems, and more particularly to augmented reality display systems and methods of fabricating the same. A method of fabricating a display device includes providing a substrate comprising a lithium (Li)-based oxide and forming an etch mask pattern exposing regions of the substrate. The method additionally includes plasma etching the exposed regions of the substrate using a gas mixture comprising CHF3 to form a diffractive optical element, wherein the diffractive optical element comprises Li-based oxide features configured to diffract visible light incident thereon.

公开(公告)号：US12117630B2

公开(公告)日：2024-10-15

申请号：US17437729

申请日：2020-03-11

Applicant: Magic Leap, Inc.

Inventor： Mauro Melli ,  Christophe Peroz ,  Melanie Maputol West

IPC: G02B5/18 ,  F21V8/00 ,  G02B27/01

CPC classification number: G02B5/1857 ,  G02B6/0016 ,  G02B27/0172 ,  B81C2201/0132

Abstract: The present disclosure generally relates to display systems, and more particularly to augmented reality display systems and methods of fabricating the same. A method of fabricating a display device includes providing a substrate comprising a lithium (Li)-based oxide and forming an etch mask pattern exposing regions of the substrate. The method additionally includes plasma etching the exposed regions of the substrate using a gas mixture comprising CHF3 to form a diffractive optical element, wherein the diffractive optical element comprises Li-based oxide features configured to diffract visible light incident thereon.

公开(公告)号：US20240308162A1

公开(公告)日：2024-09-19

申请号：US18671622

申请日：2024-05-22

Applicant: Magic Leap, Inc.

Inventor： Chieh Chang ,  Christophe Peroz ,  Sharad D. Bhagat ,  Roy Matthew Patterson ,  Michael Anthony Klug ,  Charles Scott Carden

IPC: B29D11/00 ,  B29C35/08 ,  B29C39/02 ,  B29C39/26 ,  B29C39/38 ,  B29C71/02

CPC classification number: B29D11/00663 ,  B29C35/08 ,  B29C35/0888 ,  B29C39/026 ,  B29C39/265 ,  B29C39/38 ,  B29C71/02 ,  B29C2035/0822 ,  B29C2035/0827 ,  B29C2071/022

Abstract: An example system for molding a photocurable material into a planar object includes a first mold structure having a first mold surface, a second mold structure having a second mold surface, and one or more protrusions disposed along at least one of the first mold surface or the second mold surface. During operation, the system is configured to position the first and second mold structures such that the first and second mold surfaces face each other with the one or more protrusions contacting the opposite mold surface, and a volume having a total thickness variation (TTV) of 500 nm or less is defined between the first and second mold surfaces. The system is further configured to receive the photocurable material in the volume, and direct radiation at the one or more wavelengths into the volume.

公开(公告)号：US20230418074A1

公开(公告)日：2023-12-28

申请号：US18463671

申请日：2023-09-08

Applicant: Magic Leap, Inc.

Inventor： Dianmin Lin ,  Mauro Melli ,  Pierre St. Hilaire ,  Christophe Peroz ,  Evgeni Poliakov

IPC: G02B27/01 ,  H04N13/344 ,  G02B5/30 ,  H04N13/349 ,  G02B30/35

CPC classification number: G02B27/0172 ,  H04N13/344 ,  G02B5/30 ,  H04N13/349 ,  G02B30/35 ,  G02B2027/0125 ,  G02B2005/1804

Abstract: An optical system comprises an optically transmissive substrate comprising a multilevel metasurface which comprises a grating comprising a plurality of multilevel unit cells. Each unit cell comprises, on a lowermost level, a laterally-elongated first lowermost level nanobeam having a first width and a laterally-elongated second lowermost level nanobeam having a second width larger than the first width. Each unit cell further comprises, on an uppermost level, a laterally-elongated first uppermost level nanobeam above the first lowermost level nanobeam and a laterally-elongated second uppermost level nanobeam above the second lowermost level nanobeam.

公开(公告)号：US20230384499A1

公开(公告)日：2023-11-30

申请号：US18449268

申请日：2023-08-14

Applicant: Magic Leap, Inc.

Inventor： Michael Anthony Klug ,  Brian T. Schowengerdt ,  Michael Nevin Miller ,  Vikramjit Singh ,  Christophe Peroz ,  Pierre St. Hilaire ,  Jie Sun

IPC: G02B5/30 ,  G02B27/01 ,  F21V8/00 ,  G02B5/18 ,  G02B26/10 ,  G02B27/42 ,  G02B27/00 ,  G02B27/10 ,  G02F1/13 ,  G02B1/00 ,  G02B27/28

CPC classification number: G02B5/3016 ,  G02B27/0172 ,  G02B6/004 ,  G02B5/1809 ,  G02B5/1833 ,  G02B26/103 ,  G02B27/4272 ,  G02B27/0081 ,  G02B27/1006 ,  G02F1/1326 ,  G02B1/002 ,  G02B6/0016 ,  G02B6/0076 ,  G02B27/283 ,  G02F1/1303 ,  G02B2027/0125 ,  G02B2027/0185 ,  G02B2027/0112

Abstract: Architectures are provided for selectively incoupling one or more streams of light from a multiplexed light stream into a waveguide. The multiplexed light stream can have light with different characteristics (e.g., different wavelengths and/or different polarizations). The waveguide can comprise in-coupling elements that can selectively couple one or more streams of light from the multiplexed light stream into the waveguide while transmitting one or more other streams of light from the multiplexed light stream.

公开(公告)号：US20230228934A1

公开(公告)日：2023-07-20

申请号：US18185032

申请日：2023-03-16

Applicant: Magic Leap, Inc.

Inventor： Sharad D. Bhagat ,  Brian George Hill ,  Christophe Peroz ,  Chieh Chang ,  Ling Li

IPC: G02B27/01 ,  F21V8/00

CPC classification number: G02B27/0172 ,  G02B6/0065 ,  G02B6/0076 ,  G02B6/0038 ,  G02B2027/0112

Abstract: A diffractive waveguide stack includes first, second, and third diffractive waveguides for guiding light in first, second, and third visible wavelength ranges, respectively. The first diffractive waveguide includes a first material having first refractive index at a selected wavelength and a first target refractive index at a midpoint of the first visible wavelength range. The second diffractive waveguide includes a second material having a second refractive index at the selected wavelength and a second target refractive index at a midpoint of the second visible wavelength range. The third diffractive waveguide includes a third material having a third refractive index at the selected wavelength and a third target refractive index at a midpoint of the third visible wavelength range. A difference between any two of the first target refractive index, the second target refractive index, and the third target refractive index is less than 0.005 at the selected wavelength.

公开(公告)号：US20210405372A1

公开(公告)日：2021-12-30

申请号：US17359195

申请日：2021-06-25

Applicant: Magic Leap, Inc.

Inventor： Chieh Chang ,  Christophe Peroz ,  Ryan Jason Ong ,  Ling Li ,  Sharad D. Bhagat ,  Samarth Bhargava

IPC: G02B27/01 ,  G02B27/00 ,  G02B6/02

Abstract: A method, includes providing a wafer including a first surface grating extending over a first area of a surface of the wafer and a second surface grating extending over a second area of the surface of the wafer; de-functionalizing a portion of the surface grating in at least one of the first surface grating area and the second surface grating area; and singulating an eyepiece from the wafer, the eyepiece including a portion of the first surface grating area and a portion of the second surface grating area. The first surface grating in the eyepiece corresponds to an input coupling grating for a head-mounted display and the second surface grating corresponds to a pupil expander grating for the head-mounted display.

公开(公告)号：US11198233B2

公开(公告)日：2021-12-14

申请号：US17285877

申请日：2019-10-16

Applicant: MAGIC LEAP, INC.

Inventor： Sharad D. Bhagat ,  Chieh Chang ,  Christophe Peroz

IPC: B29D11/00 ,  B29C35/08 ,  B29C39/26 ,  B29L11/00

Abstract: In an example method of forming a waveguide part having a predetermined shape, a photocurable material is dispensed into a space between a first mold portion and a second mold portion opposite the first mold portion. A relative separation between a surface of the first mold portion with respect to a surface of the second mold portion opposing the surface of the first mold portion is adjusted to fill the space between the first and second mold portions. The photocurable material in the space is irradiated with radiation suitable for photocuring the photocurable material to form a cured waveguide film so that different portions of the cured waveguide film have different rigidity. The cured waveguide film is separated from the first and second mold portions. The waveguide part is singulated from the cured waveguide film. The waveguide part corresponds to portions of the cured waveguide film having a higher rigidity than other portions of the cured waveguide film.

公开(公告)号：US20210255387A1

公开(公告)日：2021-08-19

申请号：US17308407

申请日：2021-05-05

Applicant: Magic Leap, Inc.

Inventor： Samarth Bhargava ,  Christophe Peroz ,  Victor Kai Liu

IPC: G02B6/13 ,  G02B6/122 ,  G02B26/08 ,  F21V8/00

Abstract: A plurality of waveguide display substrates, each waveguide display substrate having a cylindrical portion having a diameter and a planar surface, a curved portion opposite the planar surface defining a nonlinear change in thickness across the substrate and having a maximum height D with respect to the cylindrical portion, and a wedge portion between the cylindrical portion and the curved portion defining a linear change in thickness across the substrate and having a maximum height W with respect to the cylindrical portion. A target maximum height Dt of the curved portion is 10−7 to 10−6 times the diameter, D is between about 70% and about 130% of Dt, and W is less than about 30% of Dt.

公开(公告)号：US10890773B2

公开(公告)日：2021-01-12

申请号：US16584549

申请日：2019-09-26

Applicant: Magic Leap, Inc.

Inventor： Brian T. Schowengerdt ,  Hong Hua ,  Hui-Chuan Cheng ,  Christophe Peroz

IPC: G02B27/01 ,  G06K9/00 ,  G02B5/18 ,  F21V8/00 ,  G06T5/00 ,  G06T19/00

Abstract: Images perceived to be substantially full color or multi-colored may be formed using component color images that are distributed in unequal numbers across a plurality of depth planes. The distribution of component color images across the depth planes may vary based on color. In some embodiments, a display system includes a stack of waveguides that each output light of a particular color, with some colors having fewer numbers of associated waveguides than other colors. The stack of waveguides may include by multiple pluralities (e.g., first and second pluralities) of waveguides, each configured to produce an image by outputting light corresponding to a particular color. The total number of waveguides in the second plurality of waveguides is less than the total number of waveguides in the first plurality of waveguides, and may be more than the total number of waveguides in a third plurality of waveguides, in embodiments where three component colors are utilized.