In the previous paper (part 1), a general study on the relation between wave optics and geometrical optics was made by applying the Fourier analysis. In the present paper, primary astigmatism, coma and spherical aberration are taken up as practical examples with the following results.
In the case of astigmatism, if the magnitude |ω|λ of wave aberration is larger than 2λ, λ being the wave length, the geometric optical response function
Rg(
s) approximates the wave optical response function
Rw(
s) in the region of normalized frequency
s, where |λ
s/2|<0.2.
In the case of coma, if we consider the response function for the line image perpendicular to the sagittal direction,
Rg(
s) approximates
Rw(
s), when |ω|λ>1.2λ and |λ
s/2|<0.5; furthermore, the geometric optical response function
Rg(
t) for the line image perpendicular to the meridional direction, approaches
Rw(
t), when |ω|λ>1.6λ and |λ
t/2|<0.25.
In the case of spherical aberration, if |ω|λ>1.3λ and |λ
s/2|<0.4,
Rg(
s) approximates
Rw(
s).
抄録全体を表示