Molded LWIR Lens FL 4.7mm f/1.1 (Model VN4.711)

Catal_VN4.711

• 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/1.1 lens
  • - Use of diffractive-aspheric lens
  • - Wide-angle, passively athermalized LWIR lens
• Suitable for use with VGA and qVGA detectors and smaller
• Applications and capabilities
  • - Thermal imaging and thermography
  • - Thermal security cameras

Optical specifications

• Focal length4.7 mm
• Aperture-based f-numberf/1.1
• Maximum image circle13.8 mm
• Waveband8~12 um
• Focus range0.4 m to infinity
• Transmittance> 95 % (AR coating)
• > 90 % (DLC coating)
• Field of view (FOV)

  Sensor array	Pixel size(um)	FOV (deg)
  		H	V	D
  640 x 480	12	93.7	70	119
  384 x 288	17	79.3	60	100
  	12	56	42	70
  320 x 240	17	66	49.6	82.7
  	12	46.7	35	58.3

  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.