摘要 |
PURPOSE: To obtain a low-cost lens sheet by charging ionizing radiation curable resin in an air gap, shielding the surface of a film including the uneven surface of a stamper with a mask, then pressurizing it, irradiating the resin of the periphery of the mask with radioactive rays, and irradiating the resin after the mask is removed with the rays to bond the film to the resin. CONSTITUTION: Ionizing radiation curable resin 2 is charged on the uneven surface of a stamper 1, covered thereon with a transparent sheet 3 and further covered thereon with a mask 4. Thereafter, a laminated material 30 of the stamper 1 including the resin 2 to become the sheet and the sheet 3, the resin 2, the sheet 3 and the mask 4 is placed on a press surface plate, pressurized, excess resin is discharged from the periphery of the stamper 1, then the periphery of the mask 4 of the material 30 is irradiated with ultraviolet rays, and the resin 2 of the part is cured. The material 30 in which the mask 4 is removed is passed through an ultraviolet ray illuminator to cure the resin 2 of the uncured part (the uneven part of the stamper) and the cured resin and the transparent sheet are superposed on and adhered to each other. |