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TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More
50.8mm Dia. x 75mm FL, 3-12μm BBAR Coated, ZnSe Plano-Convex Lens

TECHSPEC Zinc Selenide (ZnSe) Plano-Convex (PCX) Lenses

TECHSPEC Zinc Selenide (ZnSe) Plano-Convex (PCX) Lenses

Stock #11-431
Qty 1-10
Qty 11
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Diameter (mm):
50.80 +0.00/-0.10
Effective Focal Length EFL (mm):
BBAR (3000-12000nm)
Coating Specification:
Ravg ≤3.0% @ 3 - 12μm
II-VI Infrared ZnSe
Surface Quality:
Power (P-V) @ 10.6μm:
Irregularity (P-V) @ 10.6μm:
Center Thickness CT (mm):
5.50 ±0.10
Edge Thickness ET (mm):
Radius R1 (mm):
Clear Aperture CA (mm):
Focal Length Specification Wavelength (nm):
Plano-Convex Lens
Wavelength Range (μm):
3 - 12
Wavelength Range (nm):
3000 - 12000
Bulk Absorption Coefficient (cm1):
<0.0005 @ 10.6μm

Regulatory Compliance


Product Family Description

  • Edmund Optics® Designed, II-VI Manufactured
  • Premier Grade ZnSe Material
  • Uncoated or Broadband AR Coating Options

TECHSPEC® Zinc Selenide (ZnSe) Plano-Convex (PCX) Lenses are designed for focusing or collimation applications in the mid-wave and longwave infrared spectrum. Manufactured by II-VI, these lenses feature Infrared ZnSe material with <0.0005cm-1 bulk absorption at 10.6µm and are available uncoated or with a variety of broadband anti-reflection coating options. The 8-12µm coating is ideal for use with CO2 lasers and thermal camera applications, whereas the dual band 3-12µm coating is ideal for hyperspectral applications. TECHSPEC® Zinc Selenide PCX Lenses feature an irregularity of <λ/20 at 10.6µm, 40-20 surface quality, and <50Å surface roughness. Three diameter options are available, with effective focal lengths ranging from 12.7mm to 200mm.

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