US 12,220,170 B2
Aberrometer with a dynamically adjustable video fixation target
Daniel R. Neal, Tijeras, NM (US); James Copland, Albuquerque, NM (US); Xifeng Xiao, Albuquerque, NM (US); Alan Blair, Albuquerque, NM (US); Lyle Kordonowy, Sandia Park, NM (US); Paul Pulaski, Albuquerque, NM (US); and Jeff Kolberg, Laguna Beach, CA (US)
Assigned to WaveFront Dynamics, Inc., Albuquerque, NM (US)
Filed by Wavefront Dynamics, Inc., Albuquerque, NM (US)
Filed on Feb. 23, 2021, as Appl. No. 17/183,327.
Claims priority of provisional application 62/980,097, filed on Feb. 21, 2020.
Claims priority of provisional application 62/980,337, filed on Feb. 23, 2020.
Prior Publication US 2021/0263497 A1, Aug. 26, 2021
Int. Cl. A61B 3/10 (2006.01); A61B 3/00 (2006.01); A61B 3/103 (2006.01); A61B 3/107 (2006.01); A61B 3/14 (2006.01); G01B 11/24 (2006.01); G01M 11/02 (2006.01); G02C 7/02 (2006.01); G02C 7/04 (2006.01); G05B 19/4099 (2006.01); G06T 7/521 (2017.01); G06T 7/55 (2017.01); G16H 50/30 (2018.01); G16H 50/70 (2018.01); B33Y 50/00 (2015.01); B33Y 80/00 (2015.01)
CPC A61B 3/1015 (2013.01) [A61B 3/0091 (2013.01); A61B 3/102 (2013.01); A61B 3/103 (2013.01); A61B 3/107 (2013.01); A61B 3/14 (2013.01); G01B 11/24 (2013.01); G01M 11/0242 (2013.01); G02C 7/027 (2013.01); G02C 7/04 (2013.01); G02C 7/047 (2013.01); G02C 7/049 (2013.01); G05B 19/4099 (2013.01); G06T 7/521 (2017.01); G06T 7/55 (2017.01); G16H 50/30 (2018.01); G16H 50/70 (2018.01); B33Y 50/00 (2014.12); B33Y 80/00 (2014.12); G02C 2202/24 (2013.01); G05B 2219/35134 (2013.01); G05B 2219/36199 (2013.01); G05B 2219/36204 (2013.01); G05B 2219/49023 (2013.01); G06T 2207/10028 (2013.01); G06T 2207/30041 (2013.01)] 38 Claims
OG exemplary drawing
 
1. An instrument for dynamically measuring one or more optical parameters of a subject's eye, the instrument comprising:
(a) a primary optical path, pointing towards the subject's eye, having a Z-axis that is coincident with the primary optical path;
(b) a dynamically-adjustable video fixation target, aligned along the primary optical path, which is configured to compensate for astigmatism and defocus of the subject's eye;
(c) a wavefront sensor, aligned along the primary optical path, and configured to dynamically measure wavefront aberrations of the subject's eye;
(d) a movable Badal stage, having a first Z-axis position, which is movable along the primary optical path; and
(e) a movable electromechanical stage, having a second Z-axis position, which is mounted to the movable Badal stage;
wherein the wavefront sensor is attached to the movable Badal stage;
wherein the dynamically-adjustable video fixation target is moveably attached to the movable electromechanical stage; and
wherein the movable electromechanical stage is configured to move the dynamically-adjustable video fixation target along the primary optical path independently from any motion of the movable Badal stage along the primary optical path.