LF7113-F 25.4 mm Dia. ZnSe Negative Meniscus Lens; EFL=-150mm 8-12µm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Convex)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- -150 mm
- BFL
- -141.8 mm
- R1
- 42.7 mm
- R2
- 33.6 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
LF7113-F 25.4 mm Dia. ZnSe Negative Meniscus Lens; EFL=-150mm 8-12µm
The LF7113-F is a spherical lens with a concave-convex base shape and a circular geometry. This lens, sourced from Thorlabs, has a diameter of 25.4 mm and a thickness at the edge of 4.6 mm, while the center thickness measures 4 mm. The effective focal length (EFL) is -150 mm, and the radii of curvature are r1 = 42.7 mm and r2 = 33.6 mm. The back focal length (BFL) is -141.8 mm, and both the inner and outer radii are 0 mm.
This lens is made of ZnSe (Zinc Selenide) material, specifically identified as "znse connolly" in the material ID. It is designed to operate at a wavelength of 10600 nm. The lens features anti-reflection coatings on both the front and back surfaces, specifically the "tho znse-arced 8-12" coating, which is optimized for the 8-12 µm spectral range.
Please note that the weblink provided leads to the product page on Thorlabs' website, and the link status is valid with the product currently in stock.
