| 摘要 |
PROBLEM TO BE SOLVED: To provide a sunlight reflection mirror preventing dirt such as sand from adhering without impairing durability while suppressing costs, and thereby capable of maintaining a sunlight reflection rate, and a solar heat power generation device with high power generation efficiency.SOLUTION: A sunlight reflection mirror unit 1 has a sunlight reflection mirror 10, and also has a low-frequency vibration mechanism 20 vibrating the sunlight reflection mirror 10. Also a solar heat power generation device 300 includes the sunlight reflection mirror unit 1.SELECTED DRAWING: Figure 4 |
