| 摘要 |
PROBLEM TO BE SOLVED: To attain simplification of the constitution of an attitude controller and miniaturization of the controller. SOLUTION: A coil 16 (16a to 16f), which is constituted of a shape memory alloy fine wire, is arranged between the rear side of a reflection mirror 11 and a fixed part 13 in the vertical direction. And a terminal part 17 (17a to 17f) is installed at a position where the coil 16 is attached on the fixed part 13, then, the terminal part 17 is connected to a DC power source through a switch. In the case of energizing the optional coil, the coil 16 heats itself, and then, the temperature rises, and when the temperature rises equal to or exceeding a prescribed temperature, the longitudinal size of the coil is shortened. Thus, the reflection mirror 11 is attracted toward the fixed part 3 and inclined. |
