| http://www.w3.org/ns/prov#value | - When a thermoplastic resin is molded by means of melt extrusion using the metal mold 32 thus produced, or when an ionizing-radiation-curable resin which is curable with ionizing radiation such as ultraviolet light or electron beams is subjected to ionizing radiation curing molding using the metal mold 32, a lenticular lens 11 a for vertical diffusion whose diffusion properties continuously vary be
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