LF5515 25.4 mm Dia. CaF2 Negative Meniscus Lens; EFL=-100mm Uncoated
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Convex)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- -100 mm
- BFL
- -97.2 mm
- R1
- 42 mm
- R2
- 20.2 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
LF5515 25.4 mm Dia. CaF2 Negative Meniscus Lens; EFL=-100mm Uncoated
The LF5515 is a spherical lens with a concave-convex base shape and a circular geometry, sourced from Thorlabs. This lens has a diameter of 25.4 mm and a thickness at the edge of 6.5 mm, while the center thickness measures 4 mm. The effective focal length (EFL) is -100 mm, and the first radius of curvature (r1) is 42 mm, while the second radius of curvature (r2) is 20.2 mm. The back focal length (bfl) is -97.2 mm, and both the inner and outer radii are 0 mm.
This lens is made of CaF2 (Calcium Fluoride) with the material ID mal-1963. It is designed to operate at a wavelength of 4000 nm. The lens does not have any coating, as indicated in the item data. The lens is in stock and available for purchase, as indicated by the "weblink status" field.
For more information, please refer to the vendor's website using the provided weblink.
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