A fastening apparatus includes a fastener and a fastener receiving member. Certain of the head fixtures include cutting structure and each head fixture includes heat supplying structure. , as well as a method for making such an orodispersible tablet. The analog filter may be further adjusted as the data rate of the signal changes. To this end, the microlens array sheet includes: a substrate; a lens arranged on the substrate; and a gap filling layer formed at exposed surfaces of the substrate and the lens, wherein the lens is arranged as high as or at a higher position than a height of the gap filling layer formed at a gap between lenses arranged on the substrate. Position metadata pieces are acquired from a plurality of other data pieces different from the target data piece.