| 摘要 |
PROBLEM TO BE SOLVED: To provide a portable ultraviolet sterilization device capable of reducing radiation of ultraviolet light to areas other than an area where radiation of the ultraviolet light is required.SOLUTION: The ultraviolet sterilization device comprises: a housing comprising a bottom face, side faces, and an upper face; a face light source disposed in the housing and emitting ultraviolet light to the upper face of the housing; plural keys arranged on the upper face so that the keys can be depressed, which can transmit the ultraviolet light; and a shutter mechanism disposed between the keys and the face light source, and transmitting the ultraviolet light from the face light source to the key only when the key is depressed.SELECTED DRAWING: Figure 1 |
