LIGHT ADJUSTMENT DEVICE, LIGHT ADJUSTMENT WINDOW, AND OPTICAL LAMINATE FOR LIGHT ADJUSTMENT DEVICE

摘要

This light adjustment device comprises: a first patterning polarizer plate (21) that comprises a plurality of polarizing areas having differing absorption axis directions; a second patterning polarizer plate (22) having the same polarizing areas as the first patterning polarizer plate (21); and a phase difference plate (3). At least one of the first and second patterning polarizing plates (21, 22) is provided so as to be capable of sliding in the surface direction thereof. This light adjustment device is unlikely to cause uneven color or the emergence of patterns.