| 摘要 |
PROBLEM TO BE SOLVED: To constitute a lightweight dimmer.SOLUTION: A dimmer 1 includes two planar members 2, 3 stacked on each other, in which the two planar members 2, 3 can relatively move to each other in a stacked state. The first planar member 2 includes a first light controlling main plate 20. The second planar member 3 includes a second light control main plate 30 that at least partially opposes to the first light control main plate 20, and a guide wall 38 that extends from the second light control main plate 30 and guides relative movement of the first light control main plate 20 on a lateral side thereof. The transmittance for light transmitted through both of the first light control main plate 20 and the second light control main plate 30 varies depending on the relative positions of the first light control main plate 20 and the second light control main plate 30.SELECTED DRAWING: Figure 10 |
