US 9,808,153 B1
Wavefront correction method for adaptive optics system
Koji Nozato, Rochester, NY (US)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Apr. 14, 2016, as Appl. No. 15/99,435.
Int. Cl. A61B 3/10 (2006.01); A61B 3/12 (2006.01); A61B 3/00 (2006.01); G02B 27/09 (2006.01); G02B 27/00 (2006.01)
CPC A61B 3/1225 (2013.01) [A61B 3/0025 (2013.01); A61B 3/1015 (2013.01); A61B 3/1025 (2013.01); G02B 27/0068 (2013.01); G02B 27/0927 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method for a controller to control an adaptive optics scanning laser ophthalmoscope, the method comprising:
receiving from the ophthalmoscope a first set of wavefront data comprising a plurality of wavefront elements;
wherein each particular wavefront element is associated with a particular area of a received beam of light received from a fundus being imaged by the ophthalmoscope;
each particular wavefront element includes:
wavefront shape measurement data, wherein the wavefront shape measurement data is representative of a shape of a wavefront of the received beam of light in a particular area of the received beam of light;
status measurement data, wherein the status measurement data is a confidence indicator of ability of the wavefront shape measurement data to represent the shape of the wavefront of the received beam of light in the particular area of the received beam of light with a particular level of accuracy;
calculating a second set of control data based on the wavefront shape measurement data in the wavefront data and a third set of local gain;
wherein the third set of local gain includes a plurality of local gain elements;
wherein each element among the plurality of local gain elements is adjusted based on one or more of the status measurement data,
transmitting the second set of control data to the ophthalmoscope, which the ophthalmoscope uses to adjust a shape of an illumination wavefront of an illumination beam used to illuminate the fundus.