Introduction

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

Optical specifications

• Focal length15.0 mm
• Aperture-based f-numberf/1.03
• Maximum image circle8.16 mm
• Waveband8~12 um
• Focus range2 m to infinity
• Transmittance(average@waveband)> 95 % (AR coating)
• > 90 % (DLC coating)
• Relative illumination> 90.2%
• Field of view (FOV)

  Sensor array	Pixel size(um)	FOV (deg)
  		H	V	D
  640 x 480	12	28.7	21.7	35.5
  384 X 288	17	24.5	18.5	30.4
  	12	17.5	13.1	21.7
  320 x 240	17	20.6	15.5	25.5
  	12	14.6	11	18.2

  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.