Method of producing anti-reflection film
A method of producing an anti-reflection film includes forming a first layer on a transparent substrate, forming a second layer on the first layer, and forming the third layer on the second layer. When an optical admittance Y at a surface of the second layer is represented by,where i is the imaginary number unit,thicknesses and reflective indexes of the substrate, first layer, second layer, and third layer are selected so that x and y satisfy the following formula,0.9x{(n2−n02)/2n0}2<{x−(n2+n02)/2n0}2+y2<1.1x{(n2−n02)/2n0}2 where n is a refractive index of the third layer and n0 is a refractive index of an outer region at an outside of the anti-reflection film.
Bridgestone Corporation
Y Y G G G Y
Y10T Y10T G02B G02B G02B Y10T
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Nobuko Mitsuhiro Yukihiro
Kato Nishida Kusano