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25.4mm Dia. x 177.8mm FL, 1 - 12µm BBAR Coated, ISP Optics Xtra-Wide Wavelength ZnSe Lens | AR112-ZC-XWL-25-177

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Stock #24-978 3-4 days
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Diameter (mm):
25.40 +0.00/-0.13
Effective Focal Length EFL (mm):
Numerical Aperture NA:
Back Focal Length BFL (mm):
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Zinc Selenide (ZnSe), CVD Grade
BBAR (1000-12000nm)
Coating Specification:
Ravg <4.5% @ 1 - 12μm
Rabs <8% @ 1 - 12μm
Centering, ETD (μm):
Surface Quality:
Clear Aperture CA (mm):
Edge Thickness ET (mm):
Center Thickness CT (mm):
3.50 ±0.20
Protective bevel as needed
Shape of Back Surface:
Wavelength Range (nm):
1000 - 12000
Conjugate Distance:
Surface Roughness (Angstroms):
<100 Ra
Irregularity (P-V) @ 632.8nm:
Model Number:

Regulatory Compliance

RoHS 2015:
Certificate of Conformance:

Product Family Description

  • Designed for Small Spot Sizes Between 1 - 12µm
  • BBAR Coating Covering the NIR - LWIR from 1 - 12µm
  • Low Absorption and Dispersion

ISP Optics Zinc Selenide (ZnSe) Aspheric Lenses are designed to provide small spot sizes across the entire wavelength range of 1 - 12µm. The zinc selenide (ZnSe) substrates provide low absorption and dispersion, as well as transmission from the visible to infrared spectra, allowing for the use of visible guide lasers. A broadband anti-reflection coating increases the transmission of these lenses across the entire 1 - 12µm, providing broadband performance for both infrared imaging applications and applications using multiple infrared laser lines. ISP Optics Zinc Selenide (ZnSe) Aspheric Lenses are ideal for use as scanning lenses in optical coherence tomography imaging (OCT) imaging systems, or as focusing lenses with fiber, CO2, or MWIR laser sources.

Note: Special care should be taken when handling Zinc Selenide as it is a toxic material. Always wear rubber or plastic gloves to avoid risk of contamination.