| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a light diffusion body in a nearly conic shell-like shape which can suppress the generation of moire. <P>SOLUTION: Provided is a light diffusion body 1 in a nearly conic shell-like shape having light permeability and inner and outer peripheral surfaces, in which the surface of at least one of the inner peripheral surface or outer peripheral surface is provided with aperiodic surface ruggedness. <P>COPYRIGHT: (C)2012,JPO&INPIT |
