| abstract |
(57) [Summary] [PROBLEMS] Compared to a conventional device that decomposes organic pollutants by irradiating light of a short wavelength part such as ultraviolet light or visible light, the device is thinner and lighter, and the installation location can be selected more widely. Provide a flexible optical functional water treatment device or optical functional gas treatment device. As an ultraviolet light source or a light source capable of emitting light of a short wavelength portion of ultraviolet light or visible light, an ultraviolet light or a visible light is used instead of an ultraviolet lamp or a fluorescent lamp using a conventional cylindrical glass tube or the like. An organic EL element or an inorganic EL element, which is an ultra-thin planar light emitting element capable of emitting a short wavelength portion, was used. |