An illumination apparatus which illuminates a portion to be illuminated with
light
from a light source comprises a plurality of light emitting members constituting
the light source, a driving circuit which drives the respective light emitting
members, a condenser optical system which condenses an emitted light from the light
emitting member drove by the driving circuit onto the portion to be illuminated,
a light control member which performs change of a light path of the light from
the light emitting member to illuminate the portion to be illuminated and/or movement
of the light emitting member, a movable section which operates the light control
member in a predetermined period, and a light selection control section which controls
the movable section and/or driving circuit so as to select the light to illuminate
the portion to be illuminated from the lights of the plurality of light emitting members.