LWIR - Athermal

SOT-LW-A-40F1

The 40mm F1 infrared athermal lens excels in delivering high-resolution thermal imaging with stable focus and consistent optical performance across extreme temperature variations. Its athermal design ensures reliable operation in demanding security and surveillance applications.

  • Stable focus from -40°C to +80°C for dependable thermal imaging
  • High-performance AR coatings optimized for LWIR/MWIR bands
  • Ideal for security, surveillance, and industrial monitoring applications
  • Compatible with multiple detector formats and pixel pitches
  • Maintains clear, detailed images from near range to long-distance targets
  • Cost-effective solution for precision infrared imaging systems
Talk to UsCustom LWIR Lens

Specifications

Focal Length (mm) 40 Mount Type Flange
F/# 1.0 Lens Size Ø46 mm / L40 mm
Spectral Range 8~12 µm Rear Working Distance 9.62 mm
Transmittance >88% Weight 89.74 g ± 5%
Detector 640×512 / 12 µm Coating AR
FOV 11° × 8.8° Operating Temperature -40°C ~ 60°C
Focusing Method Athermal Storage Temperature -40°C ~ 80°C
Focus Range 4 m ~ ∞ IP Grade IP67 (Front Mirror)

Resources

Drawing CDA

Drawing PDF

Request Quote

Need a custom LWIR lens?

Tell us your detector, focal length, and requirements — our engineering team will support your design.