An antireflective member with stability and a low reflectance at low cost may be provided by performing an antireflective treatment to a substrate in a molding process of the substrate. A roughened surface with a continuous pattern in a fine pyramidal shape is formed on a surface of a transparent substrate, the roughened surface is a diffraction surface with zeroth-order diffraction to visible light, and the pattern of the roughened surface is transferred from a mold at a transfer rate of not less than 70%.

 
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