| 摘要 |
PROBLEM TO BE SOLVED: To provide a reflective mirror which is less susceptible to adhesion of sand dust and airborne powder dust and remains such an effect for an extended period.SOLUTION: A reflective mirror comprises a base material and a metallic layer formed on a surface of the base material. The base material is made of SiC and the metallic layer is grounded through a conductor, thereby grounding a light receiving surface of the reflective mirror through the SiC base material and the metallic layer. This makes it difficult to accumulate electric charge, which prevents attraction of sand dust and airborne powder dust. Since the base material itself is conductive, conductivity is not reduced with wear and the like, which means that the effect can remain for an extended period. |
