VN5.411

Molded LWIR Lens FL 5.4mm f/1.1 (Model VN5.411)

VN5.411 product image
  • Precision molded LWIR lenses using chalcogenide glass
    • - High-volume, cost effective manufacturing
    • - Optimized for the 8~12 um wavelength range
  • High performance LWIR lenses
    • - FL 5.4 mm, f/1.1 lens
    • - Use of diffractive-aspheric lens
    • - Ultralight, wide-angle, passively athermalized LWIR lens
  • Applications and capabilities
    • - Thermal imaging and thermography

Optical specifications

  • Focal length5.4 mm
  • Aperture-based f-numberf/1.14
  • Waveband8~12 um
  • Focus range0.2 m to infinity
  • Distortion< |9.3| % (80x60, 35 um)
  • Transmittance(average@waveband)> 95 % (AR coating)
  • > 90 % (DLC coating)
  • Relative illumination> 93%
  • Field of view (FOV)
    Sensor array Pixel size(um) FOV (deg)
    H V D
    320 x 240 12 41.5 30.9 52.4
    160 x 120 17 29.2 21.8 36.6
    12 20.5 15.4 25.7
    80 x 60 35 30.0 22.5 37.7
    25 21.4 16.0 26.8

    Note : Each lens is optimized for a specific detector format represented by bold values.
    This table shows values for other compatible detector formats with nonā€optimal performance.