OB – SWIR 50 1 December 2014 Rev 002 LENS OB-SWIR50/4 – P/N C0410 General Description This family of high resolution SWIR lenses image from 0.9 – 2.3 m making them especially wellsuited for PCB inspection, special laser applications, surveillance and alignment and tracking. A high F/N and excellent transmission characteristics allow superior imaging in these wavelengths of interest. Optical and mechanical parameters Focal length Image format (diagonal) F.O.V. (diagonal) Max aperture Object format Min working distance Zoom value Focus 50 mm 20.5 mm 23 degrees F/N = 4 (fixed) N.A. 750 mm N.A. Manual Optional / If iris Min F/N = 22 Iris N. of elements Dimensions Weight 4 Dia 80 x 50 mm 0.5 Kg Options Motorized focus Motorized iris Motorized zoom Other mount type Customization Upon request Upon request N.A. Upon request Upon request P/N C0410.004 C0410.008 C0410.013 wavelength range 900-1700 nm 1700-2300 nm 900-2300 nm mount type C-Mount C-Mount C-Mount note Without iris diaphragm Without iris diaphragm Without iris diaphragm 69 OB – SWIR 50 1 December 2014 Rev 002 MTF, Field Curvature, Distortion and Transmission from 900 to 1700 nm The calculated MTF values are displayed below and are verified at the maximum F/N and the best focus plane. The colored lines represent the F.O.V. starting from the center (0%) to the corner (100%). SWIR 50 mm f/4 BFL 17,5 mm - P/N C0410 Wavelength: 900 - 1700 nm Transmittance 100% 95% 90% 85% 80% 75% 70 70% 900 1000 1100 1200 1300 1400 1500 1600 1700 Wavelength [nm] Optical parameters for wavelength range 0.9 – 1.7 m Resolution Distortion Average axial chromatic aberration MTF >40%@30lp/mm Lens Transmission without coating < 2% <0.016 mm Antireflection Coating Vignetting > 98% R < 1% 0% OB – SWIR 50 1 December 2014 Rev 002 MTF, Field Curvature, Distortion and Transmission from 1700 to 2300 nm The calculated MTF values are displayed Below and are verified at the maximum F/N and the best focus plane. The colored lines represent the F.O.V. starting from the center (0%) to the corner (100%). 71 Optical parameters for wavelength range 1.7 – 2.3 m Resolution Distortion MTF > 20%@15lp/mm Lens Transmission without coating < 2% Antireflection Coating > 81% R < 1% OB – SWIR 50 1 December 2014 Rev 002 MTF, Field Curvature, Distortion and Transmission from 900 to 2300 nm The calculated MTF values are displayed Below and are verified at the maximum F/N and the best focus plane. The colored lines represent the F.O.V. starting from the center (0%) to the corner (100%). 72 Optical parameters for wavelength range 0.9 – 2.3 m Resolution Distortion MTF > 30%@20lp/mm Lens Transmission without coating < 2% Antireflection Coating > 81% R < 1% More details are available upon request and technical drawings are open for the customers and their needs.
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