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LE7667-F 25.4 mm Dia. ZnSe Positive Meniscus Lens; EFL=150mm 8-12µm

LE7667-F 25.4 mm Dia. ZnSe Positive Meniscus Lens; EFL=150mm 8-12µm

Type
Lens
Subtype
Spherical Lens (Convex-Concave)
Brand
Thorlabs
Product webpage
Thorlabs products in the 3DOptix catalog

Properties

Shape
Circular
Diameter
25.4 mm
EFL
150 mm
BFL
141.8 mm
R1
42.7 mm
R2
50.7 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

LE7667-F 25.4 mm Dia. ZnSe Positive Meniscus Lens; EFL=150mm 8-12µm

The LE7667-F is a high-quality spherical lens from Thorlabs, featuring a convex-concave design and a circular base shape. This lens is designed for use with a wavelength of 10600 nm and is constructed from ZnSe material, specifically the ZnSe CONNOLLY variant. The lens has a diameter of 25.4 mm and a thickness at the edge of 3.7 mm, while the center thickness is 4 mm. The effective focal length (EFL) of this lens is 150 mm, and it has a back focal length (BFL) of 141.8 mm.

The LE7667-F lens is coated with THo ZnSe-ARCED 8-12 on both the front and back surfaces, ensuring optimal performance in the 8-12 µm spectral range. The inner and outer radii of the lens are 0, and the curvature radii (R1 and R2) are 42.7 mm and 50.7 mm, respectively. This lens is currently in stock and available for immediate shipping, as indicated by its valid weblink status.

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