Design of gradient-index spherical lenses for optical pickup systems.
Aberration of large numerical-aperture gradient-index lenses for optical pickup systems can be corrected with spherical surfaces whose curvatures are chosen corresponding to the measured values of the fourth- and sixth-order refractive-index coefficients.
Kikuchi
K
K
Ishihara
S
S
Shimizu
H
H
Shimada
J
J