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All Products / Optics / Infrared Optics / Germanium Optics / ISP Optics Germanium (Ge) Meniscus Lenses
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25.4mm Dia. x 127mm FL, Uncoated, ISP Optics Germanium (Ge) Meniscus Lens | GE-PM-25-127

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Stock #24-830 Clearance 3-4 days
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€137,50 €275,00
Qty 1-5
€137,50 €275,00
Qty 6+
€110,00 €220,00
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Diameter (mm):
25.40 +0.00/-0.13
Effective Focal Length EFL (mm):
127.00 @ 10.6μm
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Germanium (Ge)
f/#:
5.00
Numerical Aperture NA:
0.10
Coating:
Uncoated
Type:
Meniscus Lens
Wavelength Range (nm):
2000 - 14000
Center Thickness CT (mm):
2.90 ±0.20
Centering (arcmin):
<3
Clear Aperture (%):
90
Clear Aperture CA (mm):
22.86
Edge Thickness ET (mm):
2.70
Focal Length Tolerance (%):
±2
Model Number:
GE-PM-25-127
Radius R1 (mm):
187.07
Radius R2 (mm):
127.35
Surface Quality:
60-40
Irregularity (P-V) @ 10.6μm:
λ/20

Regulatory Compliance

RoHS 2015:
Compliant
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Certificate of Conformance:
View
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Reach 240:
Compliant
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Product Family Description

  • Positive Meniscus Lens Designs
  • Minimize Spherical Aberration and Reduce Spot Sizes
  • Wavelength Range of 2 - 16μm
  • Due to material supply chain disruptions with germanium, there may be increased lead times and price changes on our germanium products. For more information, please contact our customer service team.

ISP Optics Germanium (Ge) Meniscus Lenses are convex-concave lenses designed to minimize spherical aberration and reduce spot sizes. Germanium provides even transmission through the mid-wave infrared (MWIR) and long-wave infrared (LWIR) spectra, making it ideal for applications including thermal imaging, remote sensing, and infrared spectroscopy. Due to thermal runaway, or the decrease in transmission as temperature increases, germanium optics should be used at temperatures below 100°C. ISP Optics Germanium (Ge) Meniscus Lenses are available with focal lengths ranging from 13 to 150mm in standard imperial sizes for easy integration into benchtop systems.