• The Power of
    Micro Thermal Imaging
    The FLIR Lepton® is Leading
    the Micro Thermal Revolution

Change the way you see the world!

FLIR Lepton is a revolutionary longwave infrared (LWIR) imager that is ten times less expensive than traditional thermal cameras.

With a resolution of 80 × 60 active pixels in a camera core that is smaller than a dime, Lepton is bringing thermal imaging to a new generation of electronic devices for work, play, and mission-critical applications.

Lepton contains a breakthrough lens fabricated in wafer form, along with a microbolometer focal plane array (FPA) and advanced thermal image processing. It creates even sharper images when combined with FLIR’s patented Multi-Spectral Imaging (MSX®) technology, which extracts detail from a visible light camera and embosses it on the thermal image created by Lepton.

Why choose Lepton?

  • World’s Smallest Thermal Imager
    Compact thermal imaging for mobile and stationary electronics
  • Enhanced IR sensor
    Greater heat detection than common thermopile arrays
  • Easy Integration
    Simplified R & D of emerging thermal-enabled devices


Watch the videoLepton Maker Site



See What Micro Thermal Imaging Can Do

Lepton is the technology behind some of FLIR's ground-breaking thermal imagers from the FLIR ONE thermal imaging accessory for smartphones and tablets to the MR176 Imaging Moisture Meter—and that’s only the beginning.

New devices equipped with thermal imaging have incredible potential in the areas of health, safety, temperature measurement, and presence detection. And due to high volume manufacturing techniques, FLIR can deliver Lepton at a price point that is an order of magnitude below other thermal camera cores.

Three Mighty Lepton Models

Lepton is available in three models: 50° FOV without shutter, 25° FOV without shutter, and 50° FOV with a shutter for manual calibration.


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  • Safety & Security – See people lurking around in the dark at your home or business.
  • Automotive – Detect living beings in a car to prevent children or animals from being left in hot cars.
  • Micro and Nano UAV/UGV platforms  – Lepton® makes even smaller UAV/UAG platforms possible. 
  • Home Repair & Energy Efficiency – Find hidden air leaks, missing insulation, and water damage.
  • Building Automation & Presence Detection – Use Lepton® as a sensor to operate doors or activate HVAC systems automatically.

Where to Buy Lepton

Lepton is available through the distributors below:

Buy from Digi-KeyBuy from Avnet
Buy from Future Electronics  

Learn More About Lepton

For more information on how Lepton® can change your products, just give us a little info and we’ll be in touch!