公开(公告)号：US20240184136A1

公开(公告)日：2024-06-06

申请号：US18506279

申请日：2023-11-10

Applicant: Meta Platforms Technologies, LLC

Inventor： Robin Sharma ,  Carl Chancy ,  Afsoon Jamali ,  Kurt Jenkins ,  Yang Zheng ,  Rongzhi Huang ,  Timothy Louis Wong ,  Evan Mark Richards

IPC: G02C7/02 ,  G02B27/00 ,  G02B27/01 ,  G02C7/08

CPC classification number: G02C7/027 ,  G02B27/0093 ,  G02B27/0172 ,  G02C7/083 ,  G02B2027/0178 ,  G02C2202/12

Abstract: An apparatus includes a partial reflector, a first lens, a reflective polarizer, and a second lens. The second lens includes a first part and a second part coupled to the first part with at least one optical property designed to correct a specific user's refractive error. Various other apparatuses, systems, and methods of manufacture are also disclosed.

公开(公告)号：US11914162B1

公开(公告)日：2024-02-27

申请号：US17884512

申请日：2022-08-09

Applicant: Meta Platforms Technologies, LLC

Inventor： Evan Mark Richards ,  Cina Hazegh

IPC: G06F3/01 ,  G02B27/01

CPC classification number: G02B27/0179 ,  G02B27/0172 ,  G06F3/013 ,  G02B2027/0187

Abstract: An eye-tracking system includes two mirrors. A first mirror is positioned to transmit light, received at a first incident angle, reflected off an eye of a user toward a second mirror. The first mirror is also positioned to reflect the light, reflected from the second mirror, at a second incident angle. The second mirror is inclined from the first mirror so that the light transmitted through the first mirror is reflected by the second mirror toward the first mirror at a first reflection angle. The light reflected by the second mirror is reflected by the first mirror toward the second mirror at a second reflection angle greater than the first reflection angle. The eye-tracking system also includes one or more sensors positioned to detect the light reflected by the first mirror and the second mirror for determining a gaze direction of the eye of the user.