OPTICAL MULTILAYER FILM, POLARIZING PLATE AND OPTICAL PRODUCT

摘要

An optical multilayer film comprising a hard coat layer and a low refractive index layer comprising aerogel, which layers are laminated, in this order, directly or with another intervening layer on one surface of a base film comprising a transparent resin, wherein the refractive index n H of the hard coat layer and the refractive index n L of the low refractive index layer satisfy the following three formulae [1] , [2] and [3], Formula €‰ [ 1 ] : n L ‰¦ 1.37 Formula €‰ [ 2 ] : n H ‰§ 1.53 Formula €‰ [ 3 ] : ( n H ) 1 / 2 ˆ’ 0.2 < n L < ( n H ) 1 / 2 + 0.2.