Variable mirror, optical apparatus and decentered optical system which include variable mirror, variable-optical characteristic optical element or combination thereof

摘要

A variable mirror that is readily formable and can be readily and precisely changed into various configurations as desired is provided. The variable mirror includes a mirror body formed of an elastic or flexible material and having one surface functioning as a reflecting surface. The mirror body is capable of changing the reflecting surface configuration. The rigidity of the mirror body varies in a direction parallel to the one surface.