| 摘要 |
An illumination optical system that is used for an exposure apparatus that includes a mirror and exposes an object, illuminates a surface to be illuminated using light from a light source, and includes a filter member arranged at a position that substantially has a Fourier transform relationship with the surface to be illuminated, the filter member including a transmittance distribution preset to correct a nonuniformity of a transmittance distribution of the illumination optical system caused by the mirror.
|
