Spherical Aberration Correction Using Refractive-Diffractive Lenses with an Analytic-Numerical Method

Table 3

Coefficients value for the example 2.

Coefficients	Aperture height (mm)	Value
𝑎2	Paraxial	−0.005 mm^-1
𝑎4	(25)(1)=25	1.194430 × 10^-6 mm^-3
𝑎6	(25)(0.9137)=22.842	−1.684803 × 10^-10 mm^-5
𝑎8	(25)(0.7746)=19.363	3.602457 × 10^-14 mm^-7
𝑎10	(25)(0.555)=13.875	−5.856954 × 10^-14 mm^-9