Study of an Aspherical Lens Design Method for Removing the Spherical Aberration of a Human Eye Kim, Ji Sung; Kim, Dong Min; Jin, Jong Hyun; Kim, Young Chul;
Using Snell`s Law without approximation, we analyzed focal points for parallel rays incident upon the cornea of a human eye. To calculate a ray`s incident angle versus incident height for focusing on the same point, we used the ray reverse tracing method. We derived the theoretical conditions for an aspherical lens to remove the spherical aberration caused by a human eye. In this research, we held the rear surface of the lens to be spherical, for simple calculation, and calculated the lens curvature of the front surface to design an aspherical surface.
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