Abstract: A treatment device using active oxygen, the treatment device comprising: an ultraviolet transmission member; and a first chamber and a second chamber adjacent to each other separated by the ultraviolet transmission member, wherein the first chamber is capable of accommodating a treatment target and comprises an ozone generator, the second chamber comprises an ultraviolet light source, the ultraviolet light source is capable of irradiating a surface of the treatment target, which is accommodated in the first chamber, with ultraviolet light, and a distance between the ultraviolet transmission member and the surface of the treatment target can be adjusted to 10 mm or less.

Abstract: An active oxygen supply device comprising: a housing having at least one opening; an ozone generator located inside the housing; a means for generating an airflow comprising ozone generated inside the housing by the ozone generator, flowing toward the opening and flowing out of the housing through the opening; and an ultraviolet light source arranged so that the airflow comprising the ozone and flowing out of the housing through the opening can be irradiated with ultraviolet rays, wherein the ultraviolet light source decomposes the ozone in the airflow to generate active oxygen, and the airflow comprising the active oxygen generated by irradiating the airflow comprising the ozone with the ultraviolet rays is supplied to an object to be treated outside the housing.

Abstract: A walking assistance device includes: a waist attachment portion attached to a waist; a right knee attachment portion attached to a right knee; a left knee attachment portion attached to a left knee; and a wire that extends from the right knee attachment portion along a front surface of a right thigh, passes through the waist attachment portion, and extends along a front surface of a left thigh to reach the left knee attachment portion. The wire assists a motion of swinging the left thigh forward when the right thigh is kicked backward, and assists a motion of swinging the right thigh forward when the left thigh is kicked backward.

Abstract: Provided is a spectacle lens endowed with high luminous transmittance as well as adequate polarizing function. A method for manufacturing a spectacle lens, comprising forming a polarizing layer by applying a coating liquid containing 0.04% by mass to 1.5% by mass of a dichroic pigment by a spin coating method at a speed of 200 rpm to 600 rpm on a rubbing-treated surface.

Abstract: In a door opening and closing device for a vehicle, a handle case is mounted on an outer panel of a door, an arm portion of an outer handle that can be operated on the door extends through the handle case, penetrates into the outer panel, and is pivotably supported on the handle case, and a return spring is provided between the handle case and a pivoting member that is disposed on the handle case, pivotably supported on the handle case, and operatively linked to the outer handle. The device includes a dust proof wall surrounding a coil portion of the return spring. Accordingly, even when foreign matter enters an interior of the outer panel of the door through a gap between the arm portion of the outer handle and the handle case, it is possible to inhibit foreign matter from being caught in the return spring.

Abstract: Provided is a spectacle lens endowed with high luminous transmittance as well as adequate polarizing function. A method for manufacturing a spectacle lens, comprising forming a polarizing layer by applying a coating liquid containing 0.04% by mass to 1.5% by mass of a dichroic pigment by a spin coating method at a speed of 200 rpm to 600 rpm on a rubbing-treated surface.

Abstract: Provision of a spectacle lens provided with a satisfactory degree of polarization from the perspective of ability to suppress glare, as well as with high luminous transmittance, the spectacle lens having a high degree of freedom of frame selection relative to the prior art, and enabling the reduction of the turnaround time from order receipt to delivery; and spectacles. A spectacle lens having a lens substrate and a dichroic pigment coating layer directly on the lens substrate or on the lens substrate via another layer, the spectacle lens having a degree of polarization of 10% to 60% and a luminous transmittance of more than 75%, and spectacles having the spectacle lens and a frame to which the spectacle lens is mounted.

Abstract: Provided is a spectacle lens having, on at least one side of a lens substrate, a polarizing layer containing a dichromic pigment, and a photochromic layer containing a photochromic pigment, and having the polarizing layer and the photochromic layer via an intermediate layer.

Abstract: In a door opening and closing device for a vehicle, a handle case is mounted on an outer panel of a door, an arm portion of an outer handle that can be operated on the door extends through the handle case, penetrates into the outer panel, and is pivotably supported on the handle case, and a return spring is provided between the handle case and a pivoting member that is disposed on the handle case, pivotably supported on the handle case, and operatively linked to the outer handle. The device includes a dust proof wall surrounding a coil portion of the return spring. Accordingly, even when foreign matter enters an interior of the outer panel of the door through a gap between the arm portion of the outer handle and the handle case, it is possible to inhibit foreign matter from being caught in the return spring.