between the base plates 101 and 111 a rotating shaft member 123 having magnetism is provided in the light adjusting member 121 the rotating shaft member 123 protrudes out from both sides of the light adjusting member 121 one end of the rotating shaft member 123 is rotatably inserted in the rotating shaft hole 103 while the other end is rotatably inserted in the rotating shaft hole 113 moreover a spacer not shown is disposed between the base plate 101 and the base plate 111 to form a space in which the light adjusting member 121 can move rotationally the electromagnetic driving source 141 includes a plate shaped yoke member 142 yoke and two winding coils winding coil 143 a and 143 b the electromagnetic driving source 141 is disposed on the base plate 101 the winding coils 143 a and 143 b are wound at both end sections of the yoke member 142 such that both front end sections 144 a and 144 b of the yoke member 142 are exposed both the front end sections 144 a and 144 b of the yoke member 142 are bent toward the side of the base plate 101 such that each front end section faces the rotating shaft member 123 next both the front end sections 144 a and 144 b of the yoke member 142 are explained with reference to fig3 and 4 fig3 is a side view of the configuration of a light adjusting device according to a comparative example fig4 is a side view of the configuration of the light adjusting device 100 according to the first embodiment the members that have the.