1. An apparatus for setting an optimum ratio UVB- and UVA-radiation source artificial ultraviolet radiation, in particular for cosmetic purposes, comprising at least one light source emitting in the UVA and UVB wavelength ranges, with most of the spectral power of the light source is in the range between 321-400 nm, preferably 321-365 nm, and between the light source and the irradiated surface has at least one single-layer filter UV radiation, characterized in chtopropusknaya cn individuality of said at least one UV filter at a wavelength of 305 nm or less is less than 5% at a wavelength of 320 nm or above is more than 59% and at a wavelength of 313 nm filter bandwidth is between 12-59% .2 . The apparatus according to claim 1, characterized in that the filter is made of polyester, preferably poly (ethylene terephthalate) (PET) or poly (ethylene naphthalate) (PEN), or proizvodnyh.3. The apparatus according to claim 1, characterized in that the filter is made of a material based on tsellyulozy.4. The apparatus according to claim 1, characterized in that the filter material is polyethylene (PE) with the indium tin oxide coating (ITO) or polypropylene (PP), or copolymers thereof, or akril.5. The apparatus according to claim 4, characterized in that the thickness of the ITO coating is between 0.1-5 m, preferably between 3-4 mkm.6. An apparatus according to any one of claims 1-5, characterized in that the filter thickness less than 100 microns, preferably between 5-40 mkm.7. An apparatus according to any one of claims 1-5, characterized in that the filter factor of HAZE is between 0-5, preferably between 0-2.8. An apparatus according to any one of claims 1-5, characterized in that the filter1. Устройство для оптимальной настройки соотношения UVB- и UVA-излучения источника искусственного ультрафиолетового излучения, в особенности в косметических целях, содержащее, по меньшей мере, один источник света, излучающий в UVB и UVA диапазонах длин волн, причем большая часть спектр
