When a user instructs photographing by operating an operating unit, an image captured by an image sensor is stored as a photographed image in a memory. Black matrixes are formed upon the upper substrate and color filters are formed between the black matrixes. The groove is preferably wider in a region further from the axis of rotation from the rotating body for more efficient balancing effect. The sign system also comprises a plurality of site-finder signs within each area for providing directions to at least one site. The base layer, cover layer, and spacer layer define a flow channel into which a liquid sample is drawn therein and flows therethrough by means of capillary attraction.