The present invention relates to a beam splitter used widely by the research by selecting only the necessary separation UV skin disease.The present invention is a base 1 at predetermined intervals to be fixed to the ultraviolet treatment device is formed by a plurality of fastening holes is formed, "b" shaped for this purpose A light source (10) for generating an ultraviolet light by using a ohwooik (dichroic) of the reflector is coated with a dichroic lamp attached represent the two colors on the front end, is provided on the top side of the base (1) Is provided on the light source side a first condensing lens holder 21 (10), matching the focus of the first converging lens to the second focal region of the light supplied from the light source using the two first condenser lens (22) light condensing portion 20, to induce sikimeuroseo parallel light One end is disposed on reflection unit 30 for filtering only the ultraviolet light of the wavelength band required to separate the broadband ultraviolet light supplied from the light source and a light condensing portion of the collection section (20) Is provided on the front, one focusing converging a filtered ultraviolet light car and second to once again filter drive narrow band (narrow band), and finally getting transmission and filtering the ultraviolet light in the portion 40 of the reflection section 30 . And an end of the base (1) has a pair of light guide portion 50 for transmitting the light with a minimum attenuation comprises a.The as constructed as the present invention is one to be treated is irradiated with ultraviolet rays of a wavelength range (UVB-312nm, UVA-365nm) necessary only where needed to the patient in need of localized UV treatment, thereby significantly improve the quality and reliability of the product yeogeum and the consumer will have to help instill a good image.Miner house, reflective parts, and transmission parts filter, an optical splitter.본 발명은 필요한 자외선만을 선별 분리하여 조사함으로써 피부질환 치료에 폭 넓
