Molded LWIR Lens FL 4.0mm f/1.2 (Model VN4.012)

Catal_VN4.012

• 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 4.0 mm, f/1.2 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 length4.0 mm
• Aperture-based f-numberf/1.18
• Maximum image circle8.6 mm
• Waveband8~12 um
• Focus range0.1 m to infinity
• Transmittance> 95 % (AR coating)
• > 90 % (DLC coating)
• Field of view (FOV)

  Sensor array	Pixel size(um)	FOV (deg)
  		H	V	D
  384 x 288	17	90	68.7	112.6
  	12	64.9	49	80.1
  320 x 240	17	75.9	57.7	93.5
  	12	54.4	41.1	67.4
  160 x 120	25	56.6	42.7	70.1
  	17	38.8	29.2	48.3

  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.