VN1910

Molded LWIR Lens FL 19mm f/1.0 (Model VN1910)

VN1910 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 19 mm, f/1.0 lens
    • - Use of diffractive‐aspheric lens
    • - Ultralight, wide‐angle, passively athermalized LWIR lens
  • Suitable for use with qVGA and qqVGA detectors and smaller
  • Applications and capabilities
    • - Thermal imaging and thermography
    • - Automotive vision enhancement

Optical specifications

  • Focal length19.0 mm
  • Aperture-based f-numberf/1.03
  • Maximum image circle14.2 mm
  • Waveband8~12 um
  • Focus range2.7 m to infinity
  • Distortion< |2.5| % (640x480, 17 um)
  • Transmittance(average@waveband)> 95 % (AR coating)
  • > 90 % (DLC coating)
  • Relative illumination> 77.2%
  • Field of view (FOV)
    Sensor array Pixel size(um) FOV (deg)
    H V D
    640 x 480 17 32.2 24.2 40.1
    12 22.8 17.2 28.4
    384 x 288 17 19.4 14.6 24.2
    12 13.8 10.4 17.2
    320 x 240 17 16.2 12.2 20.2
    12 11.5 8.6 14.3

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