公开(公告)号：US20250085477A1

公开(公告)日：2025-03-13

申请号：US18719675

申请日：2022-12-21

Applicant: Snap Inc.

Inventor： Arseny Alexeev ,  Venkata Karthik Nagareddy ,  Nirdesh Ojha ,  Philip Andrew Greenhalgh ,  David Hayes

IPC: G02B6/132 ,  G02B6/10 ,  G02B6/12 ,  G02B6/136

Abstract: An optical waveguide manufacturing method includes: receiving a master template having a plurality of individual waveguide structures imprinted thereon; coating the master template with a curable master template stamp material; curing the master template stamp material to form a master template stamp; separating the master template stamp from the master template; imprinting the master template stamp onto one or more first substrates having an imprintable coating to form one or more master template copies, each master template copy having a plurality of individual waveguide structure copies imprinted thereon; curing the one or more master template copies; separating the master template stamp from the one or more master template copies; coating one of the one or more master template copies with a curable working stamp material; curing the working stamp material to form a working stamp for manufacturing optical waveguides; and separating the master template copy from the working stamp.

公开(公告)号：US20240361604A1

公开(公告)日：2024-10-31

申请号：US18768338

申请日：2024-07-10

Applicant: Snap Inc.

Inventor： David Hayes

IPC: G02B27/01 ,  G02B6/34 ,  G06F1/16 ,  H04N9/31

CPC classification number: G02B27/0172 ,  G02B6/34 ,  G02B27/0176 ,  H04N9/3185 ,  G02B2027/0161 ,  G06F1/163

Abstract: A display device for use in displaying an augmented reality image of a real-world view or a virtual reality image to a user, the display device comprising an optical waveguide having an input optical element for receiving an image and at least one output optical element for outputting the image, a projector for generating the image, the projector being physically coupled to the optical waveguide, and a projector housing containing at least some components of the projector, the projector housing being relatively moveable with respect to the optical waveguide between a relative position in which a real-world view through the waveguide in the region of the at least one output optical element is occluded and a relative position in which the real-world view through the waveguide in the region of the at least one output optical element is not occluded.

公开(公告)号：US12072495B2

公开(公告)日：2024-08-27

申请号：US17561081

申请日：2021-12-23

Applicant: Snap Inc.

Inventor： David Hayes

IPC: G02B27/01 ,  G02B6/34 ,  H04N9/31 ,  G06F1/16

CPC classification number: G02B27/0172 ,  G02B6/34 ,  G02B27/0176 ,  H04N9/3185 ,  G02B2027/0161 ,  G06F1/163

Abstract: A display device for use in displaying an augmented reality image of a real-world view or a virtual reality image to a user, the display device comprising an optical waveguide having an input optical element for receiving an image and at least one output optical element for outputting the image, a projector for generating the image, the projector being physically coupled to the optical waveguide, and a projector housing containing at least some components of the projector, the projector housing being relatively moveable with respect to the optical waveguide between a relative position in which a real-world view through the waveguide in the region of the at least one output optical element is occluded and a relative position in which the real-world view through the waveguide in the region of the at least one output optical element is not occluded.