US 11,960,093 B1
Head-mounted display systems with gaze tracker alignment monitoring
Brian S. Lau, Sacramento, CA (US); David A. Kalinowski, Davis, CA (US); and Michael J. Oudenhoven, San Francisco, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Nov. 17, 2022, as Appl. No. 17/988,940.
Application 17/988,940 is a continuation of application No. 17/365,815, filed on Jul. 1, 2021, granted, now 11,520,152.
Claims priority of provisional application 63/062,347, filed on Aug. 6, 2020.
This patent is subject to a terminal disclaimer.
Int. Cl. G02B 27/01 (2006.01); G02B 6/10 (2006.01); H04N 13/383 (2018.01)
CPC G02B 27/0172 (2013.01) [G02B 6/102 (2013.01); H04N 13/383 (2018.05); G02B 2027/0123 (2013.01); G02B 2027/0178 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A head-mounted device, comprising:
a support structure;
a display coupled to the support structure and configured to produce an image;
a waveguide coupled to the support structure and configured to receive the image, wherein the waveguide has a first edge and an opposing second edge;
a gaze tracker coupled to the support structure; and
an infrared reflector coupled to the waveguide, wherein the infrared reflector extends from the first edge to the second edge, portions of the infrared reflector are configured to form fiducials, and the gaze tracker is configured to capture an image of the fiducials.