Abstract: A technique to detect an eye potential of a wearer of an eyewear by using an electrode abutting on the glabella of the wearer has been known, but it is desirable to surely cause the electrode to abut on the glabella so as to prevent deterioration in the detection accuracy of detecting a biosignal indicating an eye potential, myogenic potential, brain wave or the like. In view of this, an eyewear including: a frame; a first electrode that abuts on a glabella of a wearer of the eyewear; and an electrode holding unit that holds the first electrode such that a distance between the frame and the first electrode is changeable is included.

Abstract: A problem related to a known eyewear-type electro-oculogram measuring apparatus which detects the eye potential using a pair of electrodes positioned outside both the eyes of a user and a pair of electrodes respectively positioned above and below one eye is that the two pairs of electrodes have had an impact on the skins of users, and discomfort on them. Besides, the electrodes are not excellent in design. The present invention provides eyewear including: a frame; a pair of nose pads; and a first electrode and a second electrode respectively provided on the surface of the pair of nose pads, the first electrode and the second electrode detecting eye potential.

Abstract: A problem related to a known eyewear-type electro-oculogram measuring apparatus which detects the eye potential using a pair of electrodes positioned outside both the eyes of a user and a pair of electrodes respectively positioned above and below one eye is that the two pairs of electrodes have had an impact on the skins of users, and discomfort on them. Besides, the electrodes are not excellent in design. The present invention provides eyewear including: a frame; a pair of nose pads; and a first electrode and a second electrode respectively provided on the surface of the pair of nose pads, the first electrode and the second electrode detecting eye potential.

Abstract: In order to allow for easy judgment of performance of optical material having a prescribed function, provided is a transmitted light observation apparatus comprising a light emitting section that generates light including light of a prescribed wavelength; a holding section that holds a first test material and a second test material arranged respectively in optical paths of the light generated by the light emitting section; and a reflecting portion that reflects at least a portion of the light transmitted respectively through the first test material and the second test material. Transmittance of the first test material for the light of the prescribed wavelength is different from transmittance of the second test material for the light of the prescribed wavelength. The light of the prescribed wavelength has a wavelength from 380 nm to 500 nm.

Abstract: Eyewear comprising a frame and a liquid storage portion that is disposed within the frame and that includes a cavity for storing liquid. The liquid storage portion includes a gas passing section that allows gas to pass therethrough from the cavity to an inside surface of the frame, which is a surface facing a head of a wearer when the frame is worn on the head, but does not allow liquid to pass therethrough from the cavity to the inside surface of the frame. The liquid storage portion may be disposed such that an outer surface of the liquid storage portion is further inside the frame than an outer surface of the frame.

Abstract: In order to allow for easy judgment of performance of optical material having a prescribed function, provided is a transmitted light observation apparatus comprising a light emitting section that generates light including light of a prescribed wavelength; a holding section that holds a first test material and a second test material arranged respectively in optical paths of the light generated by the light emitting section; and a reflecting portion that reflects at least a portion of the light transmitted respectively through the first test material and the second test material. Transmittance of the first test material for the light of the prescribed wavelength is different from transmittance of the second test material for the light of the prescribed wavelength. The light of the prescribed wavelength has a wavelength from 380 nm to 500 nm.

Abstract: A problem related to a known eyewear-type electro-oculogram measuring apparatus which detects the eye potential using a pair of electrodes positioned outside both the eyes of a user and a pair of electrodes respectively positioned above and below one eye is that the two pairs of electrodes have had an impact on the skins of users, and discomfort on them. Besides, the electrodes are not excellent in design.

Abstract: Eyewear comprising a frame and a liquid storage portion that is disposed within the frame and that includes a cavity for storing liquid. The liquid storage portion includes a gas passing section that allows gas to pass therethrough from the cavity to an inside surface of the frame, which is a surface facing a head of a wearer when the frame is worn on the head, but does not allow liquid to pass therethrough from the cavity to the inside surface of the frame. The liquid storage portion may be disposed such that an outer surface of the liquid storage portion is further inside the frame than an outer surface of the frame.