LE5414-E 25.4 mm Dia. CaF2 Positive Meniscus Lens; EFL=200mm 2-5µm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Concave)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- 200 mm
- BFL
- 194.2 mm
- R1
- 40 mm
- R2
- 75.9 mm
Material
- Name
- CaF2
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.4096399504333625
- λ
- 4000 nm
- B1
- 0.5675888
- C1
- 0.00252643 μm2
- B2
- 0.4710914
- C2
- 0.010078333 μm2
- B3
- 3.8484723
- C3
- 1200.555973 μm2
LE5414-E 25.4 mm Dia. CaF2 Positive Meniscus Lens; EFL=200mm 2-5µm
The LE5414-E is a Spherical Lens (Convex-Concave) with a base shape of Circular, designed by Thorlabs. This lens boasts a diameter of 25.4 mm and a thickness at the edge of 3 mm, with a center thickness of 4 mm. The Effective Focal Length (EFL) is 200mm, and the Radius of Curvature (RoC) for the first surface is 40 mm, while the second surface is 75.9 mm. The Back Focal Length (BFL) is 194.2 mm, and the Inner and Outer Radius are both 0 mm.
This lens is made of CaF2 (Calcium Fluoride) material, identified as "caf2 mal-1963". It is designed to operate at a wavelength of 4000 nm. The lens features a front and back coating of tho ecaf2arc20005000, providing enhanced performance and durability.
Please note that the provided weblink (https://www.thorlabs.com/thorproduct.cfm?partnumber=LE5414-E) is valid and indicates that the item is in stock, making it readily available for your optical needs.
