| 摘要 |
PROBLEM TO BE SOLVED: To obtain a reflection preventing laminated body which has a high reflection, excellent physical strength, low cost and excellent productivity by forming an intermediate boundary layer having a refractive index with a value intermediate between those of its upper and lower layers sandwiching the boundary on one out of the respective boundaries of the layers in the laminated body on which the reflection preventing layer with a multilayer structure is formed. SOLUTION: On a reflection preventing laminated body, a reflection preventing layer having a multilayer structure comprising a hard coat layer, a high refractive index layer and a low refractive index layer, or a hard coat layer, an intermediate refractive index layer, a high refractive index layer and a low refractive index layer successively laminated is formed on at least one of the substrates made of plastic, glass or the like. Then an intermediate boundary layer having a refractive index with a value intermediate between those of its upper and lower layers sandwiching the boundary is formed at least on one out of the respective boundaries of the layers. Thereby factors related to lowering of inter layer strength at the boundary caused by stress relaxation on hardening, thermal shock due to difference in thermal expansion or the like are reduced and sufficient strength is attained in spite of the multilayer structure.
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