TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More

12.7mm Dia. x 20mm FL, Uncoated, ZnSe Plano-Convex Lens

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

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

TECHSPEC Zinc Selenide (ZnSe) Plano-Convex (PCX) Lenses TECHSPEC Zinc Selenide (ZnSe) Plano-Convex (PCX) Lenses
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Stock #39-522 In Stock
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$177.50
Qty 1-10
$177.50
Qty 11+
$160.00
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Diameter (mm):
12.70 +0.00/-0.10
Effective Focal Length EFL (mm):
20.00 @ 10.6µm
Back Focal Length BFL (mm):
19.23
Coating:
Uncoated
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Coherent® Infrared ZnSe
Surface Quality:
40-20
Power (P-V) @ 632.8nm:
λ
Power (P-V) @ 10.6μm:
λ/10
Irregularity (P-V) @ 10.6μm:
λ/20
Centering, ETD (μm):
≤50.8
Center Thickness CT (mm):
1.85 ±0.10
Edge Thickness ET (mm):
1.12
Radius R1 (mm):
28.05
Clear Aperture CA (mm):
11.43
f/#:
1.57
Numerical Aperture NA:
0.32
Type:
Plano-Convex Lens
Bevel:
Protective bevel as needed
Wavelength Range (nm):
600 - 18000
Bulk Absorption Coefficient (cm1):
<0.0005 @ 10.6μm
Surface Roughness (Angstroms):
<50 RMS

Regulatory Compliance

RoHS 2015:
Reach 224:
Certificate of Conformance:

Product Family Description

  • Edmund Optics® Designed, Coherent® 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 Coherent®, 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 250mm.

Technical Information

AR COATED ZINC SELENIDE

Typical transmission of a ZnSe window with BBAR (3000-12000nm) coating at 0° AOI.

The blue shaded region indicates the coating design wavelengh range, with the following specification: 

Ravg <5.0% @ 3 - 12μm

Data outside this range is not guaranteed and is for reference only.

Click Here to Download Data

Typical transmission of a ZnSe window with BBAR (8000-12000nm) coating at 0° AOI.

The blue shaded region indicates the coating design wavelengh range, with the following specification: 

Ravg ≤0.5% @ 8 - 12μm

Data outside this range is not guaranteed and is for reference only.

Click Here to Download Data