IR/UV lighting
Alternatives
IR & UV lights use Near Infra Red LEDs or Ultraviolet LEDs. There are a number of different wavelengths within the Near Infra Red an Ultraviolet available. The choice depends on the application.
Near Infra Red LEDs are available at wavelengths of 780, 810, 850, 890 and 940nm. The higher the wavelength, the less visible they are to the human eye and the less sensitive a CCD camera becomes. The human eye is typically said to be insensitive above approximately 750nm, but in pitch darkness, most people can faintly see light glow close to 900nm. IR LED’s are available in a number of formats include Ring lights, Bar lights, on-axis lights and flood lights. Example applications include illumination of metallic objects, light penetration into certain materials and covert applications.
Ultraviolet LEDs are also available in at different wavelengths of 365, 375 and 405nm. Ultraviolet light is used in 3 main applications; Fluorescents in combination with visible light sensitive cameras; UV absorption in combination with UV sensitive cameras and quartz lenses; High precision where objects need to be measure to micron precision.
Key features
- Available in a wide range of formats including Ring lights, bar lights flood lights.
- Intensity controlled via voltage, constant current or pulse width.
- Fast on/off response (nanoseconds for some models)
- Long life expectancy up to 100k hours
- Accessories including power supplies, protective covers and filters
Accessories
- Fixed power supplies for constant voltage models
- Intensity controllable power supplies (variable voltage type)
- Intensity controllable power supplies (Pulse width type)
*Specifications are subject to change without notice
