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UV lamp and its specific use? I. Model of ultraviolet lamp: ultraviolet lamp is mainly made of the special function of ultraviolet and its optical principle. Ultraviolet rays are referred to as UV for short. According to their different wave bands, ultraviolet lamps can be divided into UV-A, UV-B, UV-C, UV-D four models. 1, model: UV- A ultraviolet lamp: Type II Fluorescent ultraviolet lamp: A Fluorescent ultraviolet lamp that emits light sources below 300nm greater than 10% of the total output light energy. Commonly known as UV-A lamp where UV- A can be seen by the naked eye, while the others are light that cannot be seen by the naked eye. 2, model: UV-B ultraviolet lamp tube; Type I Fluorescent ultraviolet disinfection lamp: UVB lamp, wavelength 275 ~ 320nm, also known as the medium wave erythema effect ultraviolet light emission below 300nm light energy is lower than the total output light energy of 20% of a fluorescent UV lamp. In addition UV- B also can be used for ultraviolet test, medical treatment and so on. 3. Model: UVC ultraviolet lamp with wavelength of 200 ~ 275nm, also known as short wave sterilization ultraviolet. 4. Model: UVD ultraviolet lamp with wavelength of 100-UV of 200nm-D185nm, and produce ozone. Second, about the use of ultraviolet lamp: 1, UVA ultraviolet lamp industrial glue curing, tungsten ore identification, fluorescence detection, biological polymerization, oil pollution detection, ore exploration, criminal detective, textile industry, archaeology, medical treatment, stage, nightclub, theater and signal lighting. 2. UVB ultraviolet lamp has erythema effect on human body, which can promote mineral metabolism and vitamin D formation in the body, but long-term or excessive irradiation will darken skin and cause redness and peeling. Skin Disease phototherapy tube, ultraviolet health lamp and plant growth lamp emit special purple glass (Do not transmit light below 254nm) And fluorescent powder with peak value around 300nm. It is mainly used in medical treatment, aging test, spectral analysis, etc. UVB ultraviolet has erythema effect on human body and can promote mineral metabolism and vitamin D formation in the body. 3, uvc uv lamp on intestinal bacteria, Aspergillus flavus and HBsAg (Hepatitis B surface antigen)Such as bacteria in a short period of time to kill. Ultraviolet Germicidal lamp emits UVC short-wave ultraviolet ray 4. UVD ultraviolet lamp tubes can produce ozone, and ozone dissolved in air or water can destroy the cell wall of microorganisms by oxidation, cause the microorganism to die immediately. In addition, UV lamps can be divided into high-pressure mercury lamps and low-pressure mercury lamps according to different air pressures in the lamps. Low-pressure lamps are mainly used for sterilization. Ultraviolet lamp can be divided into two kinds according to the structure: electrode lamp and non-electrode lamp. According to the different degree of curing, it can be divided into mercury vapor pressure lamp, metal halide lamp, etc.
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