| 摘要 |
PROBLEM TO BE SOLVED: To manufacture an antireflection material, particularly an antireflection film, excellent in antireflection effect, scratch resistance and transparency, at a low cost, by forming a plurality of resin layers on base material, and specifying the refractive indexes of the adjacent resin layers out of the resin layers. SOLUTION: Two or more resin layers are formed on the base material formed of an organic polymer film with high transparency such as cellulose triacetate, and the refractive indexes of two adjacent layers out of these resin layers are made different by 0.01 or more. It is desirable that resin containing fine grain of silica or the like is used for one layer out of the resin layers. When the resin layers formed on the base material are resin layers A-D in order from the base material side, for instance, the resin layer B is made lower in the refractive index than the resin layer A, the resin layer C is made higher in the refractive index than the resin layer B, and the resin layer D is made lower in the refractive index than the resin layer C so that the refractive indexes of the adjacent resin layers are different by 0.01 or more. Reflection can thereby be suppressed efficiently. |
