公开(公告)号：US20240398224A1

公开(公告)日：2024-12-05

申请号：US18693276

申请日：2022-09-20

Applicant: APPLE INC.

Inventor： Walter NISTICO ,  Avery L. WANG ,  Edward VAIL ,  Huiyang DENG ,  Samuel STEVEN ,  Seyedeh Mahsa KAMALI ,  Tong CHEN ,  Xibin ZHOU

IPC: A61B3/00 ,  A61B3/10 ,  A61B3/11

Abstract: Various implementations disclosed herein include devices, systems, and methods that track a state of a user's eye (e.g., position/orientation, gaze direction accommodation, pupil dilation, etc.) using coherence-based measurement (e.g., optical coherence tomography (OCT)). The coherence-based measurement may provide sub-surface information, e.g., depth, cross section, or a volumetric model of the eye, based on reflections/scattering of light (e.g., using relatively long wavelength light to penetrate into the eye tissue).