VN4.710

Molded LWIR Lens FL 4.7mm f/1.0 (Model VN4.710)

VN4.710 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 4.7 mm, f/1.0 lens
    • - Use of diffractive-aspheric lens
    • - Ultralight, wide-angle, passively athermalized LWIR lens
  • Applications and capabilities
    • - Thermal imaging and thermography

Optical specifications

  • Focal length4.7 mm
  • Aperture-based f-numberf/1.05
  • Waveband8~12 um
  • Focus range0.24 m to infinity
  • Distortion< |20| % (320x240, 12 um)
  • Transmittance(average@waveband)> 95 % (AR coating)
  • > 90 % (DLC coating)
  • Relative illumination> 98%
  • Field of view (FOV)
    Sensor array Pixel size(um) FOV (deg)
    H V D
    384 x 288 12 62 44 83
    320 x 240 12 50 36.4 65.2
    160 x 120 25 52.4 38 68.6
    17 34.2 25.3 43.6

    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.