| 摘要 |
PROBLEM TO BE SOLVED: To form a base film for a reflection plate with an excellent projecting and recessing shape on a surface of a hardened matter by applying a resin material which hardens by light, heat or both of them on a substrate and controlling the internal stress. SOLUTION: A resin material 2, prepared by mixing photo- and thermosetting acrylic resin and carbon of 50% based on the resin component, is spin coated on a glass substrate 1 and is exposed from the arrowed direction with a light filter 3 and developed (a). After the development, although surface hardening with light occurs, the inside is not hardened and the surface remains flat (b). After sintering, on the surface of the carbon mixed resin material 2, a shrinking shape resulting from the internal stress due to hardening of the previously unhardened inside appears and projecting and recessing parts are formed on the surface corresponding to the bigger internal energy. As a consequence of deposition of aluminum on the substrate 1, a diffusion substrate with an excellent projecting and recessing shape M is formed on the surface of the hardened matter 2a (c). |
