| 摘要 |
This illumination device 1 includes: a light source 13; a light control element 15 that is disposed between the light source 13 and an observer and that receives light from the light source 13; a camera 16 that detects the position of the observer; and a control unit 18 that determines a light blocking region, of the light control element 15, through which an optical path connecting the light source 13 and the observer passes and a transmission region, of the light control element 15, other than the light blocking region and that causes a light quantity in the light blocking region to be less than a light quantity in the transmission region. |
