公开(公告)号：US20230229000A1

公开(公告)日：2023-07-20

申请号：US18125044

申请日：2023-03-22

Applicant: Snap Inc.

Inventor： Kenneth Kubala ,  Russell Douglas Patton ,  Jonathan M. Rodriguez, II

IPC: G02B27/01 ,  G02C5/14 ,  G02C11/00

CPC classification number: G02B27/0172 ,  G02C5/14 ,  G02C11/10 ,  G02B2027/0178 ,  G02B2027/0187 ,  G02B2027/0138

Abstract: Eyewear having an optical waveguide communicating infrared light from a remote infrared emitter in the eyewear to an optical output coupler that uniformly illuminates an eye for tracking eye movement of a user. An optical input coupler couples a light beam emitted by the remote infrared emitter into the waveguide. The remote infrared emitter simplifies industrial design and is a single light source. The remote infrared emitter is not in a peripheral vision of a user's eye and improves a cosmetic impact.