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11-419 12.7mm Dia. x 20mm FL; Coated; ZnSe Plano-Convex Lens BBAR 3-12µm

11-419 12.7mm Dia. x 20mm FL; Coated; ZnSe Plano-Convex Lens BBAR 3-12µm

Type
Lens
Subtype
Spherical Lens (Plano-Convex)
Brand
Edmund Optics
Product webpage
Edmund Optics products in the 3DOptix catalog

Properties

Shape
Circular
Diameter
12.7 mm
EFL
20 mm
R1
28.05 mm

Material

Name
ZnSe
Dispersion Equation
Sellmeier
n (λ)
2.402780893783937
λ
10600 nm
B1
4.45813734
C1
0.040344681 μm2
B2
0.467216334
C2
0.15317139 μm2
B3
2.8956629
C3
2221.822369 μm2

11-419 12.7mm Dia. x 20mm FL; Coated; ZnSe Plano-Convex Lens BBAR 3-12µm

The 11-419 is a 12.7mm diameter, 20mm focal length plano-convex lens, designed for use in the 3-12µm spectral range. This lens is sourced from Edmund Optics and is currently in stock.

The lens is made from ZnSe (Zinc Selenide) material, specifically the connolly variant, which is known for its excellent optical properties and durability. The front and back surfaces of the lens are coated with EDM DBBAR ZnSe 312, a broadband anti-reflection coating that enhances transmission and reduces surface reflections.

The lens geometry features a 1.12mm edge thickness and a 1.85mm center thickness, providing robustness and stability. The inner and outer radii are 0, indicating a plano-convex shape. The effective focal length (EFL) is 20mm, which is the distance from the lens's principal point to the focal point.

This lens is a versatile and high-performing option for applications that require a plano-convex lens in the 3-12µm spectral range. Its combination of high-quality materials, advanced coatings, and precise geometry make it a reliable choice for various optical systems.

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