LE7963-F 12.7 mm Dia. ZnSe Positive Meniscus Lens; EFL=40mm 8-12µm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Concave)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 12.7 mm
- EFL
- 40 mm
- BFL
- 33.6 mm
- R1
- 10.9 mm
- R2
- 11.3 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
LE7963-F 12.7 mm Dia. ZnSe Positive Meniscus Lens; EFL=40mm 8-12µm
The LE7963-F is a spherical lens with a convex-concave design, sourced from Thorlabs. This lens boasts a 12.7 mm diameter and is made from ZnSe material, specifically the ZnSe CONNOLLY variant. The lens has a positive meniscus shape, which is characterized by a thicker center compared to the edges, and is designed for use with a wavelength of 10600 nm.
The lens features an effective focal length (EFL) of 40 mm, which is the distance between the lens and the focal point where light rays converge. The front and back of the lens are coated with THo ZnSe-ARCED 8-12, a broadband anti-reflection coating that reduces surface reflections and increases transmission.
The geometry of the lens includes an edge thickness of 2.9 mm and a center thickness of 3 mm. The front and back radii of curvature are 10.9 mm and 11.3 mm, respectively, and the back focal length (BFL) is 33.6 mm. The lens does not have an inner or outer radius.
This lens is available for purchase from Thorlabs' website, and as of the time of data collection, it is in stock.