公开(公告)号：US20210356747A1

公开(公告)日：2021-11-18

申请号：US17320090

申请日：2021-05-13

Applicant: Magic Leap, Inc.

Inventor： Ravi Kumar Komandury ,  Chulwoo Oh ,  Kevin Messer ,  Ioannis Papadopoulos

IPC: G02B27/01

Abstract: A pupil separation system includes an input surface, a central portion including a set of dichroic mirrors, a first reflective surface disposed laterally with respect to the central portion, and a second reflective surface disposed laterally with respect to the central portion. The pupil separation system also includes an exit face including a central surface operable to transmit light in a first wavelength range, a first peripheral surface adjacent the central surface and operable to transmit light in a second wavelength range, and a second peripheral surface adjacent the central surface and opposite to the first peripheral surface. The second peripheral surface is operable to transmit light in a third wavelength range.

公开(公告)号：US20210294103A1

公开(公告)日：2021-09-23

申请号：US16979486

申请日：2019-03-12

Applicant: Magic Leap, Inc.

Inventor： Michael Anthony Klug ,  Kevin Richard Curtis ,  Vikramjit Singh ,  Kang Luo ,  Michal Beau Dennison Vaughn ,  Samarth Bhargava ,  Shuqiang Yang ,  Michael Nevin Miller ,  Frank Y. Xu ,  Kevin Messer ,  Robert Dale Tekolste

IPC: G02B27/01 ,  F21V8/00 ,  G02B25/00

Abstract: Very high refractive index (n>2.2) lightguide substrates enable the production of 70° field of view eyepieces with all three color primaries in a single eyepiece layer. Disclosed herein are viewing optics assembly architectures that make use of such eyepieces to reduce size and cost, simplifying manufacturing and assembly, and better-accommodating novel microdisplay designs.

公开(公告)号：US20210278672A1

公开(公告)日：2021-09-09

申请号：US17194086

申请日：2021-03-05

Applicant: Magic Leap, Inc.

Inventor： Kevin Messer ,  Joshua Naaman Haddock ,  Hui-Chuan Cheng ,  Vaibhav Mathur ,  Clinton Carlisle

IPC: G02B27/01 ,  G02B25/00 ,  G02B27/28 ,  G02F1/13363 ,  G02F1/1337 ,  G02F1/01 ,  G02F1/1335 ,  G02F1/1343 ,  G02F1/139

Abstract: A wearable display system includes an eyepiece stack having a world side and a user side opposite the world side. During use, a user positioned on the user side views displayed images delivered by the wearable display system via the eyepiece stack which augment the user's field of view of the user's environment. The system also includes an optical attenuator arranged on the world side of the of the eyepiece stack, the optical attenuator having a layer of a birefringent material having a plurality of domains each having a principal optic axis oriented in a corresponding direction different from the direction of other domains. Each domain of the optical attenuator reduces transmission of visible light incident on the optical attenuator for a corresponding different range of angles of incidence.

公开(公告)号：US20210041704A1

公开(公告)日：2021-02-11

申请号：US17079143

申请日：2020-10-23

Applicant: Magic Leap, Inc.

Inventor： Samarth Bhargava ,  Victor Kai Liu ,  Kevin Messer

IPC: G02B27/01 ,  G02B27/09 ,  G06K9/00

Abstract: An eyepiece waveguide for an augmented reality display system may include an optically transmissive substrate, an input coupling grating (ICG) region, a multi-directional pupil expander (MPE) region, and an exit pupil expander (EPE) region. The ICG region may receive an input beam of light and couple the input beam into the substrate as a guided beam. The MPE region may include a plurality of diffractive features which exhibit periodicity along at least a first axis of periodicity and a second axis of periodicity. The MPE region may be positioned to receive the guided beam from the ICG region and to diffract it in a plurality of directions to create a plurality of diffracted beams. The EPE region may overlap the MPE region and may out couple one or more of the diffracted beams from the optically transmissive substrate as output beams.

公开(公告)号：US20190187474A1

公开(公告)日：2019-06-20

申请号：US16221359

申请日：2018-12-14

Applicant: Magic Leap, Inc.

Inventor： Samarth Bhargava ,  Victor Kai Liu ,  Kevin Messer

IPC: G02B27/01 ,  G06K9/00 ,  G02B27/09

CPC classification number: G02B27/0172 ,  G02B27/0944 ,  G02B27/0955 ,  G02B2027/0178 ,  G06K9/00671

Abstract: An eyepiece waveguide for an augmented reality display system may include an optically transmissive substrate, an input coupling grating (ICG) region, a multi-directional pupil expander (MPE) region, and an exit pupil expander (EPE) region. The ICG region may receive an input beam of light and couple the input beam into the substrate as a guided beam. The MPE region may include a plurality of diffractive features which exhibit periodicity along at least a first axis of periodicity and a second axis of periodicity. The MPE region may be positioned to receive the guided beam from the ICG region and to diffract it in a plurality of directions to create a plurality of diffracted beams. The EPE region may be positioned to receive one or more of the diffracted beams from the MPE region and to out couple them from the optically transmissive substrate as output beams.

公开(公告)号：US20250076658A1

公开(公告)日：2025-03-06

申请号：US18951308

申请日：2024-11-18

Applicant: Magic Leap, Inc.

Inventor： Samarth Bhargava ,  Victor Kai Liu ,  Kevin Messer

IPC: G02B27/01 ,  G02B27/09 ,  G06V20/20

Abstract: An eyepiece waveguide for an augmented reality display system may include an optically transmissive substrate, an input coupling grating (ICG) region, a multi-directional pupil expander (MPE) region, and an exit pupil expander (EPE) region. The ICG region may receive an input beam of light and couple the input beam into the substrate as a guided beam. The MPE region may include a plurality of diffractive features which exhibit periodicity along at least a first axis of periodicity and a second axis of periodicity. The MPE region may be positioned to receive the guided beam from the ICG region and to diffract it in a plurality of directions to create a plurality of diffracted beams. The EPE region may overlap the MPE region and may out couple one or more of the diffracted beams from the optically transmissive substrate as output beams.

公开(公告)号：US12235452B2

公开(公告)日：2025-02-25

申请号：US18303459

申请日：2023-04-19

Applicant: Magic Leap, Inc.

Inventor： Kevin Messer ,  Joshua Naaman Haddock ,  Hui-Chuan Cheng ,  Vaibhav Mathur ,  Clinton Carlisle

IPC: G02B27/01 ,  G02B25/00 ,  G02B27/28 ,  G02F1/01 ,  G02F1/1335 ,  G02F1/13363 ,  G02F1/1337 ,  G02F1/1343 ,  G02F1/139

Abstract: A wearable display system includes an eyepiece stack having a world side and a user side opposite the world side. During use, a user positioned on the user side views displayed images delivered by the wearable display system via the eyepiece stack which augment the user's field of view of the user's environment. The system also includes an optical attenuator arranged on the world side of the of the eyepiece stack, the optical attenuator having a layer of a birefringent material having a plurality of domains each having a principal optic axis oriented in a corresponding direction different from the direction of other domains. Each domain of the optical attenuator reduces transmission of visible light incident on the optical attenuator for a corresponding different range of angles of incidence.

公开(公告)号：US12222537B2

公开(公告)日：2025-02-11

申请号：US18729437

申请日：2023-01-20

Applicant: Magic Leap, Inc.

Inventor： Matthew C Traub ,  Yingnan Liu ,  Vikramjit Singh ,  Frank Y. Xu ,  Robert D. Tekolste ,  Qizhen Xue ,  Samarth Bhargava ,  Victor Kai Liu ,  Brandon Michael-James Born ,  Kevin Messer

IPC: F21V8/00 ,  G03F7/00

Abstract: The disclosure describes an improved drop-on-demand, controlled volume technique for dispensing resist onto a substrate, which is then imprinted to create a patterned optical device suitable for use in optical applications such as augmented reality and/or mixed reality systems. The technique enables the dispensation of drops of resist at precise locations on the substrate, with precisely controlled drop volume corresponding to an imprint template having different zones associated with different total resist volumes. Controlled drop size and placement also provides for substantially less variation in residual layer thickness across the surface of the substrate after imprinting, compared to previously available techniques. The technique employs resist having a refractive index closer to that of the substrate index, reducing optical artifacts in the device. To ensure reliable dispensing of the higher index and higher viscosity resist in smaller drop sizes, the dispensing system can continuously circulate the resist.

公开(公告)号：US12189136B2

公开(公告)日：2025-01-07

申请号：US18316824

申请日：2023-05-12

Applicant: Magic Leap, Inc.

Inventor： David Manly ,  Kevin Messer ,  Vaibhav Mathur ,  Clinton Carlisle

IPC: G02B27/28 ,  G02B5/30 ,  G02B27/01 ,  G02F1/1335 ,  G02F1/137

Abstract: A wearable display system includes an eyepiece stack having a world side and a user side opposite the world side, wherein during use a user positioned on the user side views displayed images delivered by the system via the eyepiece stack which augment the user's view of the user's environment. The wearable display system also includes an angularly selective film arranged on the world side of the of the eyepiece stack. The angularly selective film includes a polarization adjusting film arranged between pair of linear polarizers. The linear polarizers and polarization adjusting film significantly reduces transmission of visible light incident on the angularly selective film at large angles of incidence without significantly reducing transmission of light incident on the angularly selective film at small angles of incidence.

公开(公告)号：US12181679B2

公开(公告)日：2024-12-31

申请号：US18319745

申请日：2023-05-18

Applicant: Magic Leap, Inc.

Inventor： Jeffrey Dean Schmulen ,  Neal Paul Ricks ,  Samarth Bhargava ,  Kevin Messer ,  Victor Kai Liu ,  Matthew Grant Dixon ,  Xiaopei Deng ,  Marlon Edward Menezes ,  Shuqiang Yang ,  Vikramjit Singh ,  Kang Luo ,  Frank Y. Xu

IPC: G02B6/34 ,  F21V8/00 ,  G02B6/26 ,  G02B27/01 ,  G02B27/10 ,  G02B27/42 ,  G06T19/00 ,  G02B6/10

Abstract: Display devices include waveguides with in-coupling optical elements that mitigate re-bounce of in-coupled light to improve overall in-coupling efficiency and/or uniformity. A waveguide receives light from a light source and/or projection optics and includes an in-coupling optical element that in-couples the received light to propagate by total internal reflection in a propagation direction within the waveguide. Once in-coupled into the waveguide the light may undergo re-bounce, in which the light reflects off a waveguide surface and, after the reflection, strikes the in-coupling optical element. Upon striking the in-coupling optical element, the light may be partially absorbed and/or out-coupled by the optical element, thereby effectively reducing the amount of in-coupled light propagating through the waveguide. The in-coupling optical element can be truncated or have reduced diffraction efficiency along the propagation direction to reduce the occurrence of light loss due to re-bounce of in-coupled light, resulting in less in-coupled light being prematurely out-coupled and/or absorbed during subsequent interactions with the in-coupling optical element.