LE5803 25.4 mm Dia. CaF2 Positive Meniscus Lens; EFL=100mm Uncoated
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Concave)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- 100 mm
- BFL
- 94.1 mm
- R1
- 20 mm
- R2
- 36.8 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
LE5803 25.4 mm Dia. CaF2 Positive Meniscus Lens; EFL=100mm Uncoated
The LE5803 is a spherical lens with a convex-concave design, sourced from Thorlabs. This lens boasts a 25.4 mm diameter and is made from Calcium Fluoride (CaF2) material, specifically the Mal-1963 variant. The lens's base shape is circular, and it features a positive meniscus design.
The lens's geometry includes a thickness of 1.7 mm at the edge and 4 mm at the center. The Effective Focal Length (EFL) is 100 mm, and the Back Focal Length (BFL) is 94.1 mm. The first radius of curvature (R1) is 20 mm, while the second radius (R2) is 36.8 mm. The lens does not have any inner or outer radius specified, indicating a uniform curvature.
The LE5803 is designed to operate at a wavelength of 4000 nm. It does not have any coating specified, which means it is uncoated. This could potentially lead to higher levels of scattering and lower transmission compared to coated lenses, but it may also reduce the overall cost.
Please note that the provided weblink is valid and indicates that the item is in stock, making it readily available for purchase and use in various optical applications.