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>> CCFL
Lighting >>
CCFL(UV-C) |
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| COLD CATHODE FLUORESCENT
LAMPS (UV-C) |
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Ultraviolet radiation is a kind of invisible light whose wavelength
range is from 136nm to 400nm.It is divided into three wave bands:A?B?C
and vacuum ultraviolet radiation.
A wave band: 320nm-400nm
B wave band: 275nm-320nm
C wave band: 200nm-275nm
Vacuum wave band: 100nm-200nm
Ultraviolet radiation has the most bactericidal efficacy in 240nm-280nm
wave band, especially in 253.7nm.Its bactericidal principle is: Because
the cell absorb wave light farthest in 250nm-270nm, in fact absorbed
ultraviolet radiation has effect on DNA, which gets up a actinism.
The energy of ultraviolet radiation is absorbed by alkali group in
DNA to change and destroy microbial framework (DNA-ribotide), then
lead to ribotide framework broken and the end of the organism or losing
the fuction of copy. Once the fuction is broken, sterilization or
antisepsis is achieved.
Now ultraviolet radiation has been widely used in drinking water.pure
water.electron.medical treatment.atmosphere cleanse antisepsis and
sewage disposal in protecting environment and so on, it is one of
the optimal manners of decontaminating water accepted in the world.
Characteristic:
1. Widely application.fast seed.high efficiency and good impact
2. Easy to use, small volume, portability, saving-power and high life.
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