SWIR Wavelengths Lighting

SWIR -Short-Wave IR

SWIR, or Short-Wave Infrared (IR), is a great option when visible lighting is not feasible for your application. SWIR wavelengths range from 1050nm to 2500nm and are not visible to the human eye. They work in a similar manner as visible wavelengths, in that the wavelength is either reflected or absorbed by the object it is illuminating. This allows for a strong contrast when inspecting objects, essential for high-resolution imaging. A SWIR camera is required when using a SWIR wavelength light.

Smart Vision Lights offers the SWIR wavelengths in our Connect-a-Light Linear Lights, Prox Spot Lights and Brick Spot Lights series of machine vision lighting products. SWIR wavelengths are available in: 1050 nm, 1200 nm, 1300 nm, 1450 nm, and 1550 nm.

SWIR wavelength options

SWIR wavelengths are typically used in the following applications:

  • Inspecting fill levels of a nontransparent container
  • Find hidden moisture in packaging
  • Inspect tamper proof security codes
  • Locate damaged or bruised fruit
  • Gauging relative water content in plants
  • Verification of coating or dryness uniformity in bulk materials
  • Anti-counterfeiting inspection
  • Glass inspection
  • Surveillance
  • Wafer and solar cell production
  • Inspect objects that are behind smoke, steam or fog

To help you determine what SWIR wavelength is right for your application, Smart Vision Lights offers a Smart Box For Testing SWIR Wavelengths (Part #: S75-SCB-SWIR), which contains the following wavelengths of LEDs: 940 nm, 1050 nm, 1200 nm, 1300 nm, 1450 nm, and 1550 nm.

Image of Apple taken with a SWIR camera

Apple using SWIR lighting and camera

Image of SVL logo with Red Paint in front of it using a SWIR camera

Logo using SWIR lighting and camera