Short-wave ultraviolet light source of ultraviolet aging test box:
Mainly refers to cold cathode low-pressure mercury lamps and hot cathode low-pressure mercury lamps. The cold cathode low-pressure mercury lamp has a variety of structural forms, including straight tube, U-shaped, disc-shaped, etc., used for fluorescence analysis, medical treatment and photochemical reactions. This lamp has high ultraviolet radiation intensity, but it needs to be started with a magnetic flux leakage transformer, which is inconvenient to use. The hot cathode low-pressure mercury lamp, that is, the disinfection and sterilization lamp, came out in 1936 and was the earliest ultraviolet light source in the world. Its glass shell is made of glass (quartz or high-boron glass) that can transmit 254nm ultraviolet rays, and it is generally a straight tube. The hot cathode low-pressure mercury lamp is the ultraviolet light source with the largest production and application, and is widely used in various hospitals.
Medium wave ultraviolet light source in ultraviolet aging test box:
Mainly refers to ultraviolet fluorescent lamps. It has erythema effect and health care effect and is suitable for medical care. The glass tube of this kind of lamp is made of soda lime glass which can cut off the short-wave ultraviolet rays. The difference from ordinary fluorescent lamps is only in the range of radiation wavelength. Medium-wave ultraviolet metal halide lamps can also be used for medical care.
Long-wave ultraviolet light source of ultraviolet aging test box:
There are mainly long-wave ultraviolet lamps, ultraviolet high-pressure mercury lamps, ultraviolet xenon lamps and ultraviolet metal halide lamps, and ultraviolet led light-emitting diodes "Heidenade". Long-wave ultraviolet light source is widely used in diazo copying, printing plate making, electrostatic copying, fluorescence inspection in the mechanical industry, photosynthesis, photooxidation, photocuring in the chemical industry, fishing traps in agriculture, inspection and identification of public security As well as the treatment of certain skin diseases. In addition, in terms of decorative lighting, advertising lighting, and stage effects, long-wave ultraviolet light sources are also increasingly valued.
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