A chrysanthemum plant named Iduna characterized by its medium sized blooms with yellow ray florets and prolific branching; natural season flower date August 12-17; blooming for a period of 5 weeks. A measurement apparatus analyzes that vibration wave, and measures the arrival time of the maximum peak. A body of the mail is displayed on the first display portion or the second display portion in succession to display of the unread mail with its title, by operating a scroll key provided on the inner side and the outer side of the mobile terminal unit when folded, or by unfolding the folded mobile terminal unit. The parallax image generator generates a parallax image from the plurality of image signals to which an output order is assigned by the image signal assigning unit.