| 摘要 |
PROBLEM TO BE SOLVED: To provide an antireflection layer having a low reference over a wide wavelength range of visible light. SOLUTION: The antireflection layer is disposed on the surface of a translucent substrate by successively laminating a 1st layer having a refractive index of 1.70-1.80 and an optical thickness of 0.21 λ to 0.29 λ and comprising a resin and particles having a refractive index of >=1.5, a 2nd layer having a refractive index of >=2.20 and an optical thickness of 0.41 λ to 0.54 λ and a 3rd layer having a refractive index of 1.44-1.49 and an optical thickness of 0.22 λ to 0.27 λ from the substrate side toward the air layer side. |
