LWIR - Athermal

SOT-LW-A-35F1

The SOT-LW-A-35F1 is a 35mm F1.0 motorized LWIR lens optimized for rapid focus adjustment in thermal imaging systems. Its motorized capability allows operators to capture sharp, high-contrast images in security and surveillance scenarios with minimal manual intervention.

  • Stable focus from -40°C to +80°C for dependable thermal imaging
  • High-performance AR coatings optimized for LWIR/MWIR bands
  • Ideal for surveillance, border security, and outdoor thermal imaging
  • 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) 35 Mount Type M30 x 0.5
F/# 1.0 Lens Size Ø44 mm / L51 mm
Spectral Range 8~12 µm Rear Working Distance 8.59 mm
Transmittance >85% Weight 98.7 g ± 5%
Detector 640×512 / 12 µm Coating DLC
FOV 12.5° × 10° Operating Temperature -40°C ~ 60°C
Focusing Method Athermal Storage Temperature -40°C ~ 80°C
Focus Range 3.5 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.