公开(公告)号：US20230333383A1

公开(公告)日：2023-10-19

申请号：US18027831

申请日：2021-09-08

Applicant: Snap Inc.

Inventor： Ian Thomas Macken ,  Rory Thomas Alexander Mills

IPC: G02B27/01

CPC classification number: G02B27/0172 ,  G02B2027/0123 ,  G02B2027/0178 ,  G02B2027/0132

Abstract: In various embodiments, a waveguide assembly includes first and second waveguide slabs. The first waveguide slab is to receive image-bearing light and enlarge a pupil size of the light parallel to a first axis. The first waveguide slab includes a first input-coupling device to couple image-bearing light into the first waveguide slab under total internal reflection (TIR), and a first out-coupling region to decouple image-bearing light out of the first waveguide slab by reflection. The second waveguide slab is to couple at least a portion of the out-coupled image-bearing light from the first waveguide slab into the second waveguide slab and enlarge the pupil size parallel to a second axis, which is substantially orthogonal to the first axis. The second waveguide slab includes a diffractive in-coupling region and a transmissive diffractive out-coupling region, through which a user can view real world imagery and the out-coupled image-bearing light simultaneously.

公开(公告)号：US12222503B2

公开(公告)日：2025-02-11

申请号：US17594426

申请日：2020-03-17

Applicant: Snap Inc.

Inventor： Rory Thomas Alexander Mills ,  Ian Thomas Macken

IPC: G02B27/01 ,  G02B17/08 ,  G02B27/09

Abstract: A folded optical arrangement to transmit an image from an image plane to a user's eye through a folded optical transmission path including a collimating element having a first optical element with optically powered surfaces and a second optical element with at least one optically powered surface to receive light from an image source and to collimate and output the light. The first optically powered surfaces and the second optically powered surface to define multiple interfaces along the folded optical path. A refractive index change at each interface controls a direction of light passing through each interface. One surface of the first optical element and the second optical element are adjacent to one another. The adjacent surfaces have dissimilar shapes and each defines an angle with a respective other surface of the relevant optical element at opposing ends of the adjacent surfaces. The opposing angles are not equal.

公开(公告)号：US20250093664A1

公开(公告)日：2025-03-20

申请号：US18968401

申请日：2024-12-04

Applicant: Snap Inc.

Inventor： Rory Thomas Alexander Mills ,  Ian Thomas Macken

IPC: G02B27/01 ,  G02B17/08 ,  G02B27/09

Abstract: An optical arrangement to transmit an image from an image plane to a user's eye. The arrangement providing a folded optical transmission path comprising a collimating element, having a first optical element with a first plurality of optically powered surfaces; and a second optical element comprising at least one optically powered surface. The collimating element to receive light forming the image from an image source and collimate and output the light. The optically powered surfaces having a plurality of interfaces along the folded optical path. A refractive index change at each interface is predetermined to control the direction of light passing through each interface. One surface of each of the first and the second optical elements being adjacent to one another. The adjacent surfaces having dissimilar shapes and each defining an angle with a respective other surface of the relevant optical element at opposing ends of the adjacent surfaces.

公开(公告)号：US20230324687A1

公开(公告)日：2023-10-12

申请号：US18021725

申请日：2021-08-06

Applicant: Snap Inc.

Inventor： Rory Thomas Alexander Mills ,  Ian Thomas Macken

IPC: G02B27/01

CPC classification number: G02B27/0172 ,  G02B27/0176 ,  G02B2027/0178 ,  G02B2027/0154 ,  G02B2027/0181 ,  G02B2027/0123

Abstract: Various embodiments of the disclosed subject-matter include a wearable optics device including an adjustment mechanism supportable on a frame adapted to be worn by a user; one or more waveguides in a pre-aligned position relative to the adjustment mechanism; and an optical element moveably attached to the adjustment mechanism to enable the optical element to be moved based on a user preference and to provide an exit pupil for the wearable optics device In various embodiments, the waveguide output is oversized relative to the input region of the optical element. Other devices and apparatuses are also disclosed.

公开(公告)号：US20230111272A1

公开(公告)日：2023-04-13

申请号：US17913696

申请日：2021-03-08

Applicant: Snap Inc.

Inventor： Ian Thomas Macken ,  Rory Thomas Alexander Mills

IPC: G02B27/01 ,  G02B3/00

Abstract: In various embodiments, an optical system to present an image to an eye of a user is disclosed. The system comprises a waveguide configured to output collimated light towards an optically powered element comprising at least one holographic component to generate optical power. The optically powered element is configured to receive the output collimated light from the waveguide and direct the received light towards the eye of the user and impart an angular offset on the directed light such that the directed light forms a virtual image plane.