Thermal, SWIR & UV lenses

4 mm, F1 LWIR Thermal Lens, BFL 5.3 mm (LS-SLWIR59)

Model LS-SLWIR59

  • Focal length4 mm
  • MountM17x0.75
  • Sensor1/5.6"
  • ApertureF1
$129.00

In stock - ships the same business day (5 available, order by 2 PM ET)

0.11 kg shipping weight

Volume pricing, Net 30 or a formal quote?

4 mm, F1 LWIR Thermal Lens. Long-wavelength infrared (LWIR) thermal lenses designed for commercial and military applications. At a glance: focal length 4 mm; sensor 256×192 12μm; aperture F1; mount M17×0.75; distortion -10.88%.

  • Same-day shipping on stock itemsTracked UPS or DHL
  • 3-year warranty, minimumCovers defects in materials and workmanship
  • Expert machine-vision support includedFrom our licensed P.E. engineers
  • Volume discounts and Net 30For approved business accounts; purchase orders welcome
  • 90-day returnsUnused items; free return label in the US
  • Secure checkout by ShopifyCard, PayPal, Shop Pay or Google Pay

Specifications

General

ModelLS-SLWIR59
Angle of view (deg)56.63°(D)×44.36°(H)×32.8°(V)
SealingIP 67
Front lens coatingHD

Optics

Focal length4 mm
ApertureF1
Distortion-10.88%
Relative illumination0.94
Focus methodFixed
Focus range0.2m~∞
Mechanical back focal length5.3 mm
Image circle (derived)dia. 3.8 mm, from the 256 x 192 detector at 12 micron pitch

Sensor and imaging

Sensor256×192 12μm

Environment and compliance

Operating temperature-40℃ to +80℃

Mechanical

MountM17×0.75
Dimensionsdia. 17 x L10.1 mm
Weight<10g
Shipping weight (estimated)0.11 kg

Photo shows a representative model of this series; see the specifications for this model.

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