1. Phototherapeutic unit comprising: a housing at least partially defining a zone of irradiation, wherein the irradiation zone is adapted to fitted over at least part of the patients body, the source of ultraviolet (UV) radiation, disposed in the housing ifiltr located between the UV radiation source and the irradiation zone, the filter is adapted to at least substantially eliminate UV radiation outside a given range, with the specified spectrum band is not more than 10 nm and is centered about 297 nm.2. . Apparatus according to claim 1, kotoroykorpus includes a side wall which at least partially surrounds the irradiation zone UV radiation source comprises a plurality of gas discharge high intensity light, the filter comprises a plurality of tubes of quartz glass with a coating which at least partially close the respective plurality of discharge high intensity lamps, wherein a predetermined range of the filter is in the range of 292-302 nm afototerapevticheskaya arrangement is adapted to stimulate the production of vitamin D in the skin patsienta.3. . The apparatus of claim 1, in kotoroykorpus comprises at least one rack directed towards the irradiation zone UV light source comprises a plurality of metal halide lamps afototerapevticheskaya apparatus further comprises a plurality of reflectors, which are partially surrounded by a corresponding plurality of metal halide lamps, wherein the reflector is arranged to direct UV energy emitted by the individual metal halide lamps to filtru.4. Installation according to Claim. 1 in which a predetermined range of filter bandwidth is not greater than 8 nm.5. mouth1. Фототерапевтическая установка, содержащая:корпус по меньшей мере частично определяющий зону облучения, при этом зона облучения выполнена с возможностью помещения в нее по меньшей мере части тела пациентаисточник ультрафиолетового (УФ) излучения, расположенный в корпусе ифильтр, расположенный между источником УФ излучения и зоной облучения, фильтр выполнен с возможно
