LE7667-F 25.4 mm Dia. ZnSe Positive Meniscus Lens; EFL=150mm 8-12µm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Concave)
- Brand
- Thorlabs
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.