US 12,324,626 B2
Process for determining ophthalmic parameters by 3D mapping
Jean-Philippe Sayag, Paris (FR); and Alexander Shelymagin, Vilnius (LT)
Assigned to ACEP FRANCE, Paris (FR)
Appl. No. 17/618,085
Filed by ACEP FRANCE, Paris (FR)
PCT Filed Jun. 10, 2020, PCT No. PCT/EP2020/066140
§ 371(c)(1), (2) Date Dec. 10, 2021,
PCT Pub. No. WO2020/249643, PCT Pub. Date Dec. 17, 2020.
Claims priority of application No. 1906179 (FR), filed on Jun. 11, 2019.
Prior Publication US 2022/0296096 A1, Sep. 22, 2022
Int. Cl. A61B 3/10 (2006.01); A61B 3/00 (2006.01); A61B 3/04 (2006.01); A61B 3/11 (2006.01); A61B 3/14 (2006.01); G02C 13/00 (2006.01)
CPC A61B 3/111 (2013.01) [A61B 3/0025 (2013.01); A61B 3/10 (2013.01); A61B 3/112 (2013.01); A61B 3/14 (2013.01); G02C 13/003 (2013.01); G02C 13/005 (2013.01); A61B 2560/0406 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method for determining ophthalmic parameters for a given frame and a given wearer, said method comprising the following steps:
a) fitting said given wearer with said given frame;
b) providing a mobile device comprising a first projecting mean able to project a pattern of optical radiation onto the face of the wearer, a first camera able to record said pattern of optical radiation, a processing device able to processes the image of the pattern in order to generate a depth map of the face of the wearer, a screen able to display the images recorded by said first camera and a light source able to illuminate the pupils of the wearer,
c) recording simultaneously a depth map of the face of the wearer and a picture of the face of the wearer while said light source is obtained by displaying a white form on said screen and is illuminating the pupils of the wearer while said screen displays a focusing point,
d) determining automatically the position of the pupils of the wearer,
e) associating the position of the pupils of the wearer to their respective coordinates in the depth map,
f) determining from the respective coordinates of the pupils of the wearer said ophthalmic parameters, and
further comprising a step wherein the position of the pupils obtained at step d) is displayed on the screen with said recorded image of the face of the wearer and wherein said position can be corrected.