An illumination apparatus comprise a light control member configured to perform
changing the path of light from light emitters to be directed to an illuminated
area and/or moving of the light emitters, a movement unit configured to allow the
light control member to operate, and a light selector control unit configured to
control the movement unit and/or a lighting unit, which is configured to cause
the light emitters to emit light so that the intensities of light emitted by them
can be adjusted, so as to select light to be directed to the illuminated area from
light of the emitters. The light selector control unit controls the lighting unit
to cause an emitter to emit light when it is positioned in the vicinity of a light
concentration area of an optical system by the operation of the light control member.