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ZnSe Aspheric Lens, 25.4 mm Dia, 20.0 mm EFL, 0.64 NA, 1.0 mm thick

The ZNPA11 Zinc Selenide IR Aspheric Lens is a 25.4 mm in diameter with effective focal length of 20.0 mm aspheric lens. Zinc Selenide has wide variety of usage in high power CO₂ laser systems because of its low absorption coefficient and high resistance to thermal shock. ZnSe aspheric lenses provide diffraction limited focusing performance, making it ideal for focusing the output of a CO₂ laser. It is an excellent choice for any IR applications due to its broad wavelength range (0.6 µm to 16 µm).

Specifications

Technical Specs

Lens Shape
Plano-Convex Aspheric
Diameter
25.4 mm
Antireflection Coating
Uncoated
Lens Material
ZnSe
Surface Quality
60-40 scratch-dig
Effective Focal Length (EFL)
20.0 mm
Center Thickness (Tc)
4.00 mm
Edge Thickness (Te)
1.00 mm
F/#
0.79

Design Wavelength
10.6 µm
Diameter Tolerance
+0.0/-0.13 mm
Center Thickness Tolerance
±0.20 mm
Edge Thickness Tolerance
±0.20 mm
Clear Aperture
90% of central diameter
Substrate Centering of Ruled Area
< 3 arc min

Lens Shape
Plano-Convex Aspheric
Diameter
25.4 mm
Antireflection Coating
Uncoated
Lens Material
ZnSe
Surface Quality
60-40 scratch-dig
Effective Focal Length (EFL)
20.0 mm
Center Thickness (Tc)
4.00 mm
Edge Thickness (Te)
1.00 mm
F/#
0.79

Design Wavelength
10.6 µm
Diameter Tolerance
+0.0/-0.13 mm
Center Thickness Tolerance
±0.20 mm
Edge Thickness Tolerance
±0.20 mm
Clear Aperture
90% of central diameter
Substrate Centering of Ruled Area
< 3 arc min

Resources & Downloads

Other

ZNPA11_ROHS(144.8 kB, PDF)

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