It is conceivable that the shape of a light shading wall in the planar direction of a lens plate is rectangular as shown in FIG. 28A, hexagonal (honeycomb-shaped) as shown in FIG. 28B, circular as shown in FIG. 28C, or shapes where all-parts except lenses are formed as a light shading wall as shown in FIG. 28D and FIG. 28E. In case of assuming that lens faces are face [1], face [2], face [3], . .