| 摘要 |
PROBLEM TO BE SOLVED: To provide a high-performance baffle by reducing the effective reflectance of light on the surface of vanes of the baffle and to provide a method to decrease the effective reflectance on the surface of a member for an optical appliance. SOLUTION: A fine rugged pattern is formed on the surface of a vane to induce reflection and absorption in a plurality of times on the surface of the vane to reduce the effective reflectance of light. Or, by forming the fine rugged pattern by etching or photoetching, the vane can be efficiently processed. By adopting the method by etching for members of general optical appliances, the effective reflectance of light on the surfaces can be decreased. |
