US 12,114,930 B2
System for measuring binocular alignment with adjustable displays and eye trackers
Jeffrey P. Krall, Mitchell, SD (US); Aric Plumley, Huntington Beach, CA (US); Ronnie Barnard, Hickory Creek, TX (US); Zachary Dios, Laguna Beach, CA (US); Thomas Henry Holt, Costa Mesa, CA (US); Vivek Labhishetty, Irvine, CA (US); Ali Jiong-Fung Lee, Tustin, CA (US); Ferenc Raksi, Laguna Hills, CA (US); and Jason Robert Ryan, Mission Viejo, CA (US)
Assigned to Neurolens, Inc., Coppell, TX (US)
Filed by Neurolens, Inc., Costa Mesa, CA (US)
Filed on Feb. 19, 2021, as Appl. No. 17/179,402.
Application 17/179,402 is a continuation in part of application No. 16/579,826, filed on Sep. 23, 2019, granted, now 11,589,745.
Application 16/579,826 is a continuation of application No. 15/696,161, filed on Sep. 5, 2017, granted, now 10,420,467, issued on Sep. 24, 2019.
Prior Publication US 2021/0169322 A1, Jun. 10, 2021
Int. Cl. A61B 3/14 (2006.01); A61B 3/00 (2006.01); A61B 3/08 (2006.01); A61B 3/113 (2006.01); H04N 5/33 (2023.01); H04N 13/327 (2018.01); H04N 13/344 (2018.01); H04N 13/383 (2018.01)
CPC A61B 3/14 (2013.01) [A61B 3/0041 (2013.01); A61B 3/0091 (2013.01); A61B 3/08 (2013.01); A61B 3/113 (2013.01); H04N 5/33 (2013.01); H04N 13/327 (2018.05); H04N 13/344 (2018.05); H04N 13/383 (2018.05); H04N 2213/008 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A system to determine a binocular alignment, comprising:
a first optical unit, including
a first display, to display images for a first eye, actuatable along a longitudinal direction according to a simulated distance and an optical power of the first eye, and
a first eye tracker assembly, to track a gaze direction of the first eye, adjustable in a horizontal lateral direction to accommodate a pupillary distance of the first eye, the first eye tracker assembly including
one or more first infrared light emitting diodes, to project an infrared eye-tracking beam on the first eye,
a first infrared light source, to illuminate the first eye with an infrared imaging light, and
a first infrared camera, to detect the infrared eye-tracking beam and the infrared imaging light, both reflected from the first eye; and
a second optical unit, including
a second display, to display images for a second eye, actuatable along the longitudinal direction according to a simulated distance and an optical power of the second eye, and
a second eye tracker assembly, to track a gaze direction of the second eye, adjustable in the horizontal lateral direction to accommodate a pupillary distance of the second eye, the second eye tracker assembly including
one or more second infrared light emitting diodes, to project an infrared eye-tracking beam on the second eye,
a second infrared light source, to illuminate the second eye with an infrared imaging light, and
a second infrared camera, to detect the infrared eye-tracking beam and the infrared imaging light, both reflected from the second eye; and
a computer, coupled to the first optical unit and the second optical unit, to determine the binocular alignment based on the gaze directions of the first eye and the second eye.