| 摘要 |
An optical device where an image of an object is formed on an image pickup element and where an image restoration process is performed on the image obtained by the image pickup element, comprising
a MTF that satisfies the following conditional expression (1):;0.001<L×NA<0.5,5<a<30 (1);where L: the width of the MTF when the MTF is a %, and
NA: a numerical aperture of the optical device. |
