PROBLEM TO BE SOLVED: To allow an electrode to surely abut on a glabella in order to prevent decline of detection accuracy for detecting a biological signal such as an eye potential, a myogenic potential or a brain wave, whereas a technology has been known, for detecting the eye potential of a wearer by using an electrode abutting on the glabella of the wearer of an eyewear.SOLUTION: An eyewear includes a frame, a first electrode abutting on a glabella of a wearer of the eyewear, and an electrode holding part for holding the first electrode in such a way that a distance between the frame and the first electrode can be changed.COPYRIGHT: (C)2016,JPO&INPIT
