Abstract
When we consider viewing the surface of human skin, the skin gives us a sense of natural depth, while, in contrast, the surface of a plastic does not. It is sure that the feeling of natural depth from human skin does not come from binocular disparity, because we can easily sense the natural depth of the skin, even when using only one eye. In our research program, learning from the structure of human skin, we fabricated screens which consist of multilayers made of translucent sheets coated with TiO2 nanoparticles. The feeling of natural depth from our screen can be considered to come from the multiply-observed images produced by phase differences due to the translucent multi layers and the reflection/diffusion differences of light depending on its wavelength. Our screen can be applied to a projection screen for events, since it is simple, energy free, and applicable to a large area.
