公开(公告)号：US12235480B2

公开(公告)日：2025-02-25

申请号：US18440180

申请日：2024-02-13

Applicant: Magic Leap, Inc.

Inventor： Chulwoo Oh ,  Ravi Kumar Komanduri ,  David Kleinman ,  Vaibhav Mathur ,  David Manly

IPC: G02B5/30 ,  F21V8/00 ,  G02B5/08 ,  G02B27/01 ,  G02F1/1335

Abstract: In some implementations, an optical device includes a one-way mirror formed by a polarization selective mirror and an absorptive polarizer. The absorptive polarizer has a transmission axis aligned with the transmission axis of the reflective polarizer. The one-way mirror may be provided on the world side of a head-mounted display system. Advantageously, the one-way mirror may reflect light from the world, which provides privacy and may improve the cosmetics of the display. In some implementations, the one-way mirror may include one or more of a depolarizer and a pair of opposing waveplates to improve alignment tolerances and reduce reflections to a viewer. In some implementations, the one-way mirror may form a compact integrated structure with a dimmer for reducing light transmitted to the viewer from the world.

公开(公告)号：US11940639B2

公开(公告)日：2024-03-26

申请号：US17211457

申请日：2021-03-24

Applicant: Magic Leap, Inc.

Inventor： Chulwoo Oh ,  Ravi Kumar Komanduri ,  David Kleinman ,  Vaibhav Mathur ,  David Manly

IPC: G02B5/30 ,  F21V8/00 ,  G02B5/08 ,  G02B27/01 ,  G02F1/1335

CPC classification number: G02B5/305 ,  G02B5/0808 ,  G02B5/3058 ,  G02B5/3083 ,  G02B6/0076 ,  G02B27/0172 ,  G02F1/133528 ,  G02B2207/101

Abstract: In some implementations, an optical device includes a one-way mirror formed by a polarization selective mirror and an absorptive polarizer. The absorptive polarizer has a transmission axis aligned with the transmission axis of the reflective polarizer. The one-way mirror may be provided on the world side of a head-mounted display system. Advantageously, the one-way mirror may reflect light from the world, which provides privacy and may improve the cosmetics of the display. In some implementations, the one-way mirror may include one or more of a depolarizer and a pair of opposing waveplates to improve alignment tolerances and reduce reflections to a viewer. In some implementations, the one-way mirror may form a compact integrated structure with a dimmer for reducing light transmitted to the viewer from the world.

公开(公告)号：US20210302636A1

公开(公告)日：2021-09-30

申请号：US17211457

申请日：2021-03-24

Applicant: Magic Leap, Inc.

Inventor： Chulwoo Oh ,  Ravi Kumar Komanduri ,  David Kleinman ,  Vaibhav Mathur ,  David Manly

IPC: G02B5/30 ,  G02B5/08 ,  G02F1/1335 ,  G02B27/01 ,  F21V8/00

Abstract: In some implementations, an optical device includes a one-way mirror formed by a polarization selective mirror and an absorptive polarizer. The absorptive polarizer has a transmission axis aligned with the transmission axis of the reflective polarizer. The one-way mirror may be provided on the world side of a head-mounted display system. Advantageously, the one-way mirror may reflect light from the world, which provides privacy and may improve the cosmetics of the display. In some implementations, the one-way mirror may include one or more of a depolarizer and a pair of opposing waveplates to improve alignment tolerances and reduce reflections to a viewer. In some implementations, the one-way mirror may form a compact integrated structure with a dimmer for reducing light transmitted to the viewer from the world.

公开(公告)号：US10983263B2

公开(公告)日：2021-04-20

申请号：US15683624

申请日：2017-08-22

Applicant: Magic Leap, Inc.

Inventor： David Kleinman ,  Samarth Bhargava ,  Victor K. Liu ,  David Jurbergs

IPC: F21V8/00 ,  G02B27/00 ,  G02B27/01 ,  G02B27/10 ,  H04N9/31 ,  G06F3/01 ,  G06F3/147 ,  G09G3/00 ,  G09G3/20 ,  G02B7/00 ,  G02B5/30 ,  G02B27/28 ,  G02C5/16 ,  G02C11/00 ,  G06F1/16 ,  G06F1/20 ,  H05K7/20 ,  G02B5/18 ,  G02B6/34 ,  G02B6/293 ,  G02B27/30

Abstract: An eyepiece and waveguide for viewing a projected image in a virtual reality and augmented reality imaging and visualization system. The waveguide may include a substrate for guiding light. The waveguide may also include an incoupling diffractive element disposed within or on the substrate and configured to diffract an incoupled light related to the projected image into the substrate. The waveguide may further include a first grating disposed within or on the substrate and configured to manipulate the diffracted incoupled light from the incoupling diffractive element so as to multiply the projected image and to direct the multiplied projected image to a second grating. The second grating may be disposed within or on the substrate and may be configured to outcouple the manipulated diffracted incoupled light from the waveguide. The first grating and the second grating may occupy a same region of the waveguide.