| 摘要 |
<p>The present invention relates to a body in which fine concavities and convexities are formed in at least a part of the surface, characterized in that the fine concavities and convexities consist of a wave-shape concavo-convex pattern and multiple concavities or convexities formed on said wave-shape concavo-convex pattern; the wave-shape concavo-convex pattern consists of irregularly formed convex ridges and concave furrows between the convex ridges; the convex ridges meander non-parallel to one another; the modal pitch of the convex ridges is 3-20μm; and, the apparent modal diameter of the concavities or convexities is 1-10μm. By means of the present invention, it is possible to provide an easily produced body having fine concavities and convexities in the surface and a production method thereof, wherein, when used as a light diffuser, said body has to a certain extent a diffusion angle even in the direction perpendicular to the main diffusion direction while still maintaining the diffusion angle of the primary diffusion direction.</p> |
