LF4938-UV 25.4 mm Dia. UVFS Negative Meniscus Lens; EFL=-100mm UV 245-400nm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Convex)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- -100 mm
- BFL
- -99.3 mm
- R1
- 150 mm
- R2
- 35 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
LF4938-UV 25.4 mm Dia. UVFS Negative Meniscus Lens; EFL=-100mm UV 245-400nm
The LF4938-UV is a spherical lens with a concave-convex base shape and a circular design, sourced from the reputable vendor Thorlabs. This lens boasts a diameter of 25.4 mm and a center thickness of 3 mm, with an edge thickness of 4.9 mm. The effective focal length (EFL) is -100 mm, and the back focal length (BFL) is -99.3 mm.
This lens is designed for use with ultraviolet light, specifically within the wavelength range of 245-400 nm. The front and back surfaces of the lens are coated with "tho uv uv arc 245400," a specialized coating that enhances its performance in UV applications.
The lens is made from UVFS material, identified as "UVFS mal- 1965" in the item data. The inner and outer radii are both 0, indicating a uniform curvature. The lens's geometry, coupled with its UV-optimized material and coating, makes it an ideal choice for applications requiring a negative meniscus lens with a strong UV light focus.
Please note that the weblink provided leads to Thorlabs' product page for the LF4938-UV, where you can find more information, including current availability and pricing.
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