公开(公告)号：US20240085703A1

公开(公告)日：2024-03-14

申请号：US18355965

申请日：2023-07-20

Applicant: Apple Inc.

Inventor： Chih Jen Chen ,  Brian S Lau ,  Cameron A Harder ,  David A Kalinowski

IPC: G02B27/01 ,  F21V8/00 ,  G02B5/32 ,  G02B6/02 ,  G02B27/00

CPC classification number: G02B27/0172 ,  G02B5/32 ,  G02B6/0006 ,  G02B6/02033 ,  G02B6/02061 ,  G02B27/0093 ,  G02B2027/0138 ,  G02B2027/0178

Abstract: A head-mounted device may include a housing having openings that receive lenses. Displays may output images. Waveguides that overlap the lenses may receive the images from the displays and may direct the images to eye boxes that are aligned with the lenses. Infrared light sources such as infrared light-emitting diodes or lasers may be used to supply infrared light to the waveguides. Each waveguide may have multiple localized output couplers that overlap the lenses. The localized output couplers of each lens each direct a beam of the infrared light out of the waveguide towards an eye surface in the eye box associated with that lens to produce an eye glint. A gaze tracker infrared camera may captured images of the eye glints to determine a user's point of gaze.