In order to make the ultraviolet radiation source more practical, one direction of semiconductor ultraviolet diode development is to greatly reduce the volume and power consumption of the existing ultraviolet laser and its power supply. The other direction is to develop a light-emitting diode with an emission wavelength of 280 nm and a power consumption of less than 10 mW. And a laser diode having an emission wavelength of 340 nm and a power consumption of less than 25 mW.
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