LE5183 25.4 mm Dia. CaF2 Positive Meniscus Lens; EFL=40mm Uncoated
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Concave)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- 40 mm
- BFL
- 33.1 mm
- R1
- 15 mm
- R2
- 146.9 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
LE5183 25.4 mm Dia. CaF2 Positive Meniscus Lens; EFL=40mm Uncoated
The LE5183 is a spherical lens with a convex-concave design, sourced from the reputable optical components manufacturer, Thorlabs. This lens boasts a 25.4 mm diameter and is crafted from Calcium Fluoride (CaF2) material, specifically the Mal-1963 variant.
The lens features an effective focal length (EFL) of 40 mm, making it suitable for a wide range of optical applications. The geometry of the lens includes an edge thickness of 2.4 mm and a center thickness of 8.9 mm, providing robustness and durability. The inner and outer radii are both zero, indicating a uniform curvature.
The base shape of the lens is circular, and it is offered uncoated. The lack of coating can be beneficial in certain applications where the natural properties of the CaF2 material are desired. However, it's important to note that this lens may exhibit higher reflectivity compared to coated alternatives.
The lens is designed to operate at a wavelength of 4000 nm. The provided weblink leads to the product page on Thorlabs' website, where users can find more information, including current stock availability.