The new coronavirus (COVID-19) threat to humanity highlights the global lurking of hygiene risks, from our homes to the entire society.
At the same time, it shows that taking countermeasures (sterilization/disinfection) against these risks is necessary.
Everything we come in contact with (water, air, any object) requires said countermeasures to be taken effectively through various methods.
The sterilizing effect of Stanley Electric's UVC technology can protect people from harmful bacteria and viruses.
Ultraviolet refers to invisible light spanning a range of wavelengths between about 100 to 400nm.
UVC (deep ultraviolet) light does not exist in nature, because its wavelength ranging from about 100 to 280nm cannot reach the Earth. Nonetheless, UVC light performs a wide range of functions such as sterilization, organic decomposition, photopolymerization and sensing.
Stanley Electric has the technology to make high-power LEDs in the UV-C range and is particularly focused on sterilization.
Bacteria and viruses multiply by replicating the genetic material found in the nucleus of living cells, thus leading to infections and onset.
DNA and RNA possess the genetic material necessary for proliferation.
The UVC range of light can change and rearrange the "strands" constituting the helical structure of DNA/RNA.
UV sterilization becomes possible by "inactivating" DNA/RNA
Achieving a reliable bactericidal effect just by irradiating UV light. UV light's bactericidal effect works against various DNA/RNA bacteria and viruses and is being analyzed daily by various universities, research institutes and companies.
This graph shows the ultraviolet sensitivity of Cryptosporidium; common bacteria and viruses have similar sensitivity characteristics, and the sensitivity peak is often found at 260 to 270nm.
Even in the UV-C range, the higher the sensitivity, the higher the bactericidal effect.
(Cryptosporidium: Chlorine-resistant pathogenic protozoa, causes waterborne infections)
It is important to select an effective UV-C wavelength, as the bactericidal effect changes depending on the wavelength.
With our lineup of LEDs and lamps, we offer the most suitable UVC light source for various applications.
(Ta 25℃)
| Device | Lamp (Cold Cathode Lamp) | LED | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Wavelength | 254 nm | 265 nm | 275 nm | ||||||
| UV radiant flux | 200 mW | 600 mW | 1,100 mW | 10 mW | 25 mW | 50 mW | 3 mW | 21.5 mW | 43 mW |
| Product |  |
 |
|
|
 |
 |
 |
||
| IF | 10 mA | 15 mA | 15 mA | 440 mA | 440 mA | 440 mA | 20 mA | 150 mA | 350 mA |
| VF | 400 V | 600 V | 860 V | 7.0 V | 7.0 V | 7.0 V | 5.2 V | 5.5 V | 5.8 V |
| Size (Lamp: D×L) (LED: L×W×H) |
4×70 mm | 4×150 mm | 4×240 mm | 3.5×3.5 ×2.24 mm |
3.5×3.5 ×2.24 mm |
3.5×3.5 ×2.24 mm |
3.45×3.45 ×1.78 mm |
3.45×3.45 ×1.38 mm |
3.5×3.5 ×1.3 mm |
| More information | |||||||||
We offer PCB-mounted samples and simple modules. Please contact us for further information.
The increase of UVC LEDs' light output greatly expands possible applications, from household items to industrial devices, factories and infrastructures. Stanley Electric is working on developing high-power LEDs and continues to pursue the potential of UVC light.
