Water purification has conventionally been done with filters or chlorine, but these methods have not been effective against chlorine-resistant bacteria. Under these circumstances, water sterilization that uses deep ultraviolet LEDs, which are highly effective against resistant bacteria, is attracting attention.
Stanley has developed high-power deep-ultraviolet LEDs with a high sterilization capacity. This product is available as an alternative light source to replace mercury lamps, which have been the mainstream light source used in ultraviolet light application devices, such as sterilization devices.
Stanley achieved the world’s highest light output level of 50 mW at a wavelength of 265 nm, which has the most powerful sterilization capability. An aluminum nitride substrate with a photonic structure behind the substrate helps realize light output of 50 mW, the highest level in the world. Its compact size compared with existing sterilization light sources allows greater freedom of device design, making it possible to roll out deep ultraviolet LEDs for new applications
The combination of proprietary water rectification mechanism and light distribution technologies cultivated in the manufacture of automobile headlamps has made it possible to irradiate water effectively with deep UV light.