ABSTRACT
Moth eye surfaces can prevent reflection by changing the refractive index continuously between air and the matrices, which theoretically was already known. The technology to form such structures when small areas are involved has been developed, but it is difficult to form moth eye surfaces when large areas are involved. The most effective means of reducing the effects of reflected light are moth eye antireflection (AR) films. Commercial reflection-reducing films are of two types, AR films and antiglare films. The multilayer type AR films can improve a characteristic by increasing the layer numbers. Multilayer-type AR films prevent reflection mainly at the wavelength that is the highest in visual sensitivity. Moth eye AR films have lower reflection than the multilayer type and have low reflection throughout the visible wavelength. The right is on the multilayer-type AR film, and the left is on the moth eye AR film. The right image has the apparent reflection of lamps.
