Patent ID: 7607799

Claim:
An illumination device emitting light from a point-like light source via a light flux control member emitting light from said point-like light source, comprising: a plurality of point-like light sources, a plurality of lens portions and lens-portion-mounting-holes, wherein each of said lens portions and each of said lens-portion-mounting-holes are arranged as to correspond to each of said point-like light sources, said light flux control member has a lens portion which is located as to correspond to said point-like light source and provided with a back face directed to said point-like light source and a front face opposite to the back face, and a body portion mounting said lens portion detachably, said body portion being provided with a lens-portion-mounting-hole receiving and engaging with said lens portion, and said lens portion being fixed to said body portion by rotation after said lens-portion-mounting-hole has engaged with said lens-portion.