Patent ID: 7835080
Filing Date: 2010-11-16
Classification: C25D,G02B,G02F,H01J

Abstract:
1. An antireflective member having an uneven structure on a surface, the uneven structure including a plurality of raised portions and a plurality of recessed portions, wherein the antireflective member satisfies the following Inequality (1): wherein P is the distance between a top of a raised portion and a top of an adjacent raised portion, λ min is the shortest wavelength of an incoming light ray, ni is the refractive index of an incidence medium, and θi max is the largest angle of incidence of the incoming light ray, θi max being more than 0 degrees and less than 90 degrees, and the uneven structure includes a plurality of saddle portions which are different from the plurality of raised portions and the plurality of recessed portions, each saddle portion being between the tops of adjacent raised portions, and each saddle portion interconnecting the tops of the adjacent raised portions not via any recessed portion.