Shortwave ultraviolet (UV) light is a high-energy form of invisible electromagnetic radiation typically operating at a wavelength of 254 nm to 275 nm (UVC).
Key Characteristics
- Wavelength: Around 254 nm (traditional low-pressure mercury tubes) to 275 nm (UVC LEDs).
- Energy Level: Carries higher photon energy than longwave (UVA) or midwave (UVB) light, making it trigger fluorescence in about 80% to 90% of fluorescent minerals.
- Penetration & Blocking: Blocked by standard glass, ordinary plastics, and the Earth’s ozone layer. Special quartz or specialized filter glass (such as Hoya or dichroic lenses) is required to let the shortwave rays pass through.
