A light control device according to the present invention comprises a plurality of optical elements between two transparent plates in each of which a pair of transparent substrates having taper-shaped side faces with transparent electrodes are located so as to face each other, and a light control layer capable of changing the light transmitting state by electrically controlling the pair of transparent electrodes is disposed between the pair of transparent electrodes, and further, a transparent solid layer is filled in a space formed in the gap between the two transparent plates.