VN6.413

Molded LWIR Lens FL 6.4mm f/1.3 (Model VN6.413)

VN6.413 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 6.4 mm, f/1.2 lens
    • - Use of diffractive-aspheric lens
    • - Ultralight, wide-angle, passively athermalized LWIR lens
  • Applications and capabilities
    • - Thermal imaging and thermography

Optical specifications

  • Focal length6.41 mm
  • Aperture-based f-numberf/1.28
  • Waveband8~12 um
  • Focus range0.34 m to infinity
  • Distortion< |5| % (206x156, 12 um)
  • Transmittance(average@waveband)> 95 % (AR coating)
  • > 90 % (DLC coating)
  • Relative illumination> 95%
  • Field of view (FOV)
    Sensor array Pixel size(um) FOV (deg)
    H V D
    206 x 156 12 22.2 16.8 28
    160 x 120 12 17.2 13 21.5
    80 x 60 25 18 13.4 22.5

    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.