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.

For additional documentation on SWIR wavelengths, read Smart Vision Lights' recent white paper on this topic. Also, SVL's West Coast Sales Manager, Steve Kinney, was a part of a webcast that covered SWIR wavelengths. This webcast is still available for those who are interested in learning more about what SWIR imaging can achieve for you.

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