Method and system for electro-active spectacle lens design
View Patent ↗A method and system for designing electro-active lenses adapted to correct for a higher-order aberration, whereby a desired pixel size is determined. In certain embodiments, the desired pixel size may be determined by identifying a desired pixel size for an electro-active lens adapted to correct for a conventional aberration.
1. A method for determining the number of single-layer pixel electrodes in an electro-active lens having an electro-active pixilated portion that corrects for a higher order aberration of an eye, the method comprising:
a) identifying a surface area of the electro-active pixilated portion;
b) selecting a desired pixel electrode width between 240 and 50 microns per pixel for the electro-active pixilated portion;
c) dividing said surface area by said desired pixel electrode width;
d) dividing the value obtained in step “c” by said desired pixel electrode width;
e) multiplying the value obtained in step “d” by a fill factor; and
f) producing said electro-active lens.
2. The method of claim 1 wherein said fill factor is slightly less than 1.
3. A system for determining the number of single-layer pixel electrodes in an electro-active lens having an electro-active pixilated portion that corrects for a higher order aberration of an eye, the system comprising:
a) a means for identifying a surface area of the electro-active pixilated portion;
b) a means for selecting a desired pixel electrode width between 240 and 50 microns per pixel for the electro-active pixilated portion;
c) a means for dividing said surface area by said desired pixel electrode width;
d) a means for dividing the value obtained in step “c” by said desired pixel electrode width;
e) a means for multiplying the value obtained in step “d” by a fill factor;
f) a means for producing said electro-active lens.
4. The system of claim 3 wherein said fill factor is slightly less than 1.