LF5067 12.7 mm Dia. CaF2 Negative Meniscus Lens; EFL=-20mm Uncoated
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Convex)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 12.7 mm
- EFL
- -20 mm
- BFL
- -19.9 mm
- R1
- 95.6 mm
- R2
- 7.5 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
LF5067 12.7 mm Dia. CaF2 Negative Meniscus Lens; EFL=-20mm Uncoated
The LF5067 is a spherical lens from Thorlabs, featuring a concave-convex base shape and a circular geometry. With a diameter of 12.7 mm, this lens is designed to work with a wavelength of 4000 nm. The lens's edge thickness measures 5.3 mm, while the center thickness is 2 mm. The effective focal length (EFL) is -20 mm, indicating that it is a negative meniscus lens.
The lens's first radius of curvature (R1) is 95.6 mm, and the second radius (R2) is 7.5 mm. The back focal length (BFL) is -19.9 mm, and the lens does not have an inner or outer radius. The material used for this lens is CaF2 (Calcium Fluoride), identified as "caf2 mal-1963" in the Material ID.
This lens is uncoated, as indicated in the coating parameter. According to the vendor's website, the lens is currently in stock. For more information, users can refer to the provided web link.