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LightPath 390037 | 5.5mm Dia., 0.85 NA, BBAR (1800-3000nm), Mounted IR Aspheric Lens

Stock #66-572
€355,00
Cant. 1-10
€355,00
Cant. 11
€319,50
Precio por Volumen
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Diameter (mm):
5.50 ±0.10
Effective Focal Length EFL (mm):
1.87 @ 9500nm
Numerical Aperture NA:
0.85
Center Thickness CT (mm):
3.00
Coating:
BBAR (1800-3000nm)
Coating Specification:
Ravg <1.0% @ 1.8 - 3.0μm
Substrate:
Black Diamond™ BD-2 (Ge28Sb12Se60)
Clear Aperture CA (mm):
4.00
Surface Quality:
80-50
Bevel:
Protective bevel as needed
f/#:
0.58
Density (g/cm3):
4.68
Index of Refraction nd @ 10μm:
2.6023
Index of Refraction nd @ 14μm:
2.5843
Index of Refraction nd @ 4μm:
2.6210
Index of Refraction nd @ 5μm:
2.6173
Lightpath Lens Code:
390037
Mount:
Stainless Steel, M9 x 0.5 Thread
Thermo-optic coefficient dn/dT:
70 x 10-6/°C from -40° to +80°C (5 - 14 μm)
Transformation Temperature (°C):
285.00
Wavelength Range (nm):
1800 - 3000
Working Distance (mm):
0.72
Conjugate Distance:
Infinite

Regulatory Compliance

Product Family Description

  • Wavelength Range of 1.8 - 12μm
  • Variety of Coating Options
  • Mounted and Unmounted Versions

LightPath® Mid-Wave and Long-Wave Infrared (IR) Aspheric Lenses feature a low-cost, molded design and offer several key benefits over Germanium substrate aspheres. With a dn/dT and CTE significantly less than that of Germanium, the lenses feature a smaller change in focal length as a function of temperature change. Featuring a higher operating temperature than Germanium (which suffers 20 – 30% transmission loss at 100°C), the lenses can be used in applications including collimators for QCL lasers and as components within thermal imaging assemblies.

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