Patent ID: 8749693

Claim:
A light reduction device for adjusting an amount of light reaching an imaging device, the light reduction device comprising: a light shielding plate in which a plurality of light shielding parts are discretely formed for blocking the light, and a first light transmission part is formed for transmitting the light; a first light reduction plate in which a plurality of first light reduction parts are discretely formed for reducing the amount of the light passing through, and a second light transmission part is formed for transmitting the light, the first light reduction plate overlapping the light shielding plate at least in part, when viewed from an incident direction of the light; and a moving unit configured to move at least one of the light shielding plate and the first light reduction plate in a first direction which intersects with the incident direction of the light, so as to change an overlap pattern between the light shielding parts and the first light reduction parts, when viewed from the incident direction of the light.