| 摘要 |
A light adjustment device provided with a first substrate (1), a second substrate (2), a spacer (3) for forming a space for disposing a light adjustment unit between the first substrate (1) and second substrate (2), a notch (1c) provided such that measurement light (ML) for measuring the distance of the space reaches the spacer (3), and a periphery extension part (2c) provided such that the measurement light (ML) reaches the second substrate (2). |
