LF4624 25.4 mm Dia. UVFS Negative Meniscus Lens; EFL=-200mm Uncoated
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Convex)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- -200 mm
- BFL
- -198.5 mm
- R1
- 150 mm
- R2
- 56.6 mm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.4600813135725972
- λ
- 546 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
LF4624 25.4 mm Dia. UVFS Negative Meniscus Lens; EFL=-200mm Uncoated
The LF4624 is a spherical lens from Thorlabs, featuring a concave-convex base shape and a circular geometry. With a diameter of 25.4 mm, this lens is designed for use in optical systems where a negative meniscus lens is required. The lens has a center thickness of 3.5 mm and an edge thickness of 4.5 mm, providing a robust and stable platform for optical applications.
The effective focal length (EFL) of the LF4624 is -200mm, making it a powerful tool for focusing or diverging light beams. The first radius of curvature (R1) is 150 mm, while the second radius (R2) is 56.6 mm, contributing to its unique optical properties. The back focal length (BFL) is -198.5 mm, and the lens does not have an inner or outer radius, indicating a uniform curvature.
This lens is made from UVFS material with the Mal-1965 ID. It is designed for use with a wavelength of 546 nm. The lens does not come with any coating, which may affect its performance in certain applications. However, its uncoated nature can be beneficial in applications where coating might introduce unwanted reflections or interfere with the optical path.
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