Application Guide
Infrared LEDs for Covert & Low-Glow Applications
940nm emitters for designs that require minimal visible glow while maintaining reliable IR illumination.
Key needs
- Minimizing visible glow while keeping sensor response
- Reliable domestic source to avoid import delays
- Consistent output for calibrated imaging systems
Recommended wavelengths
Evaluate these options and compare output in the visualizer and charts.
Where these LEDs are used
Covert surveillance
In-cabin and driver monitoring with low glow
Proximity sensing where visibility matters
Consumer devices that must hide IR illumination
FAQs
Why pick 940nm for covert designs?
940nm greatly reduces visible glow compared to 850nm, helping hide illumination while providing useful NIR output.
Does 940nm reduce sensor response?
Many sensors have slightly lower response at 940nm vs 850nm. Teams often prototype both to balance covert needs with sensitivity.
Are lead times the same as other wavelengths?
Yes. Standard lead times are ~3 weeks across the wavelength family.
Next steps
Compare wavelengths in the 3D visualizer and charts, then request samples to validate your design.